Oil Level Measurement Solutions for the Oil & Gas Industry

Posted on February 19, 2021 by KimGuo11

Oil Level measurements are necessary to control the amount of oil in the tank and to prevent overflow. Oil Level measurements are very important in the process of oil and gas storage and transportation. We will analyze and introduce the automatic level measurement here. Hope to help you!

Technical Support

Oil level measurement solutions for the oil & gas industry

The Necessity of Oil tank level measurement

-In the process of oil and gas storage and transportation, accurately measure the height of the liquid level in the large oil storage tank. This is an important measure to correctly calculate oil storage, determine inventory, and calculate transportation.

-In oil and gas production, especially in oil and gas gathering, transportation, storage, and transportation systems, oil, natural gas, and associated sewage must be separated, stored, and processed in various production equipment and tanks. The measurement and control of the level are essential to ensure normal production and equipment safety. Otherwise, a major accident will occur.

-For example, if the oil tank level measurement is not well controlled, there will be evacuated or oil spill “roofing” accidents. If the liquid level of the oil-air separator is too high or too low, “oil running” and “gas blow-by” accidents will occur. Seriously affect the production and safety of subsequent equipment;

-The high oil-water interface in the electric dehydrator will destroy the electric field. If it is low, it will carry oil in the water and affect production.

The Basic Concept of Level

Level—refers to the general term of the liquid level of the liquid medium, the level of solids or the level of particles in the container and the interface between two different liquid media.
Liquid level-the height of the liquid medium in the container
Material level-the accumulation height of solid or granular substances in the container
Interface level – the level of the interface of two immiscible liquids medium

Extended Reading: How to Measure Volume of Liquid

Classification of Oil Level Measurement

According to the measurement method, it can be divided into continuous measurement and fixed-point measurement.

According to its working principle, it can be divided into the following types:

Direct reading type It measures the liquid level based on the principle of fluid connectivity.
Buoyancy type It measures the liquid level according to the principle that the height of the float changes with the height of the liquid or the buoyancy of the liquid to the float (or sinker) immersed in the liquid changes with the height of the liquid. The former is called constant buoyancy, and the latter is called variable buoyancy.
Differential pressure type (static pressure type) It measures the level according to the principle of the change in the static (differential) pressure generated at a certain point by the change in the height of the liquid column or the material accumulation.
Electrically, it measures the level based on the principle of converting level changes into various changes in electricity.
Nuclear radiation type It measures the liquid level based on the principle that when the nuclear radiation of the isotope rays penetrates the material, its intensity changes with the thickness of the material layer.
Acoustic It measures the level according to the changes in acoustic impedance and reflection distance caused by changes in the level

Direct measurement is one of the simplest and most intuitive measurement methods. It uses the principle of communicating devices. The liquid in the container is introduced into an observation tube with a ruler. Read the height of the liquid level by the ruler

Such as a glass tube level gauge.

Extended Reading: GWR Level Sensor for High Temperature & High Pressure

Manual gauge level measurement is a basic method for measuring the volume and quality of liquids in various storage tanks.

It has the characteristics of simple operation, accurate measurement, and no auxiliary equipment. It is still the main measurement method in the crude oil gathering and transportation process of various oil fields.

When measuring with a gauge, first measure the height of the liquid level in the tank, and then calculate the volume and mass of the liquid in the tank according to the cross-sectional area of the tank or the large tank volume table.

The tool used by the gauge to measure is steel tape with a copper weight on the lower end. In order to facilitate the oil measuring operation, an oil measuring port is provided on the top of the tank. An oil measuring pipe is installed under the oil measuring port, and a hole is drilled at the bottom end of the pipe to communicate with the liquid. The purpose of setting the oil measuring pipe is to reduce the influence of the liquid level fluctuation in the tank on the oil measuring.

Extended reading: High Temperature Flow Meter

The magnetic flip level gauge has a firm structure, reliable work, and an eye-catching display.

Since the measured liquid is completely sealed and magnetic coupling transmission is used, it can measure high temperature, high pressure, and opaque viscous liquids, such as crude oil, sewage, etc.

The disadvantage is that after long-term use, the magnetism of the magnetic steel is degraded. Wear of the flap shaft can easily cause the wrong indication
Therefore, it should be checked and corrected regularly.

Extended reading: Industrial Tank level indicators and Tank Level Gauges

The buoyancy method to measure the liquid level is based on the principle of force balance, usually with the help of floats. The float is made into a hollow rigid body so that it can float on the liquid surface when it is balanced. When the liquid level changes, the float will move up and down with the liquid level. Therefore, by measuring the displacement of the float, the amount of liquid level change can be known.

Float type level gauges can be divided into float type, float type, etc. according to different float shapes;

According to different institutions, it can be divided into steel belt type and lever type.

Extended reading: What is a capacitive liquid level sensor?

It is measured based on the pressure generated by the weight of the liquid.

Since the static pressure generated by the liquid on the bottom surface of the container is proportional to the height of the liquid level. Therefore, the liquid level can be calculated by measuring the pressure of the liquid in the container.

**Extended Reading: Petroleum Flow Meter**

Ultrasonic level gauges use the propagation characteristics of waves in the medium.

Therefore, install an ultrasonic transmitter and receiver at the bottom or top of the container. The emitted ultrasonic waves are reflected at the phase interface. And it is received by the receiver. The time difference between ultrasonic wave transmission and reception is measured. The liquid level can be measured.

According to different working principles, the electrical method can be divided into resistive, inductive, and capacitive.

Using electrical methods to measure frictionless parts and movable parts, signal conversion and transmission are convenient. It is convenient for remote transmission, reliable work, and the output can be converted into a unified electrical signal. Used in conjunction with the electric unit combination instrument. Can easily realize automatic detection and automatic control of liquid level.

Extended reading: Non Contact Liquid Level Sensor Working Principle

Radar level transmitters use radar technology to perform the non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal. The level signal output can then be utilized by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo. Radar level sensors are divided into Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Sino-Inst produces a 120GHz FMCW radar level sensor, 26GHz radar level meter, 6GHz level meter.

The magnetostrictive liquid level sensor that uses the principle of magnetoelectric conversion for liquid level measurement is a new product launched in recent years.

Extended reading: Diesel fuel tank level gauges & indicators

Still have questions?

If you cannot find an answer to your question in our FAQ, you can always contact us
and we will be with you shortly.

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Performance characteristics and selection of common oil tank level gauges

The intermediate tank only monitors parameters such as liquid level, temperature, and pressure (pressure storage tank) to prevent accidents such as roof capping and vacuuming of the oil tank. There is no need for handover monitoring and measurement;

The liquid level, temperature, density, volume, and quality of the medium in the trade tank must be monitored and measured frequently, and the accuracy is very high.

Performance comparison of Oil level measurement

Level gauge	Light oil	Crude oil	Heavy oil	Asphalt	Liquefied gas	Other liquids
Magnetic flap level gauge	ok	ok	ok	poor	No	very good
Float	ok	ok	ok	poor	No	very good
radar	Great	Great	Great	Great	Great	Great
Static pressure	Great	Great	ok	poor	ok	Great
Magnetically induced	Great	Great	Great	poor	Great	Great
Ultrasonic	Great	Great	Great	Great	Great	Great

Extended reading: Radar Oil Tank Level Sensor

Oil Tank level measurement instruments for different media

Level gauge	Level measurement	Temperature deletion	Density deletion	Boundary measurement	Volume measurement	Quality deletion	Installation situation	Cost
Magnetic flap	High precision	Can not be measured	Can not be measured	Small error	Depends on TD	Depends on Tρ	simple	low
Float	High precision	Can not be measured	Can not be measured	Mistaken sheep	Depends on TD	Depends on Tρ	simple	low
radar	High precision	important	Unable to delete	Unable to	Small error	Depends on Tρ	simple	high
Hydrostatic pressure	Big error	unimportant	Small error	Unable to	Big error	Depends on Tρ	complex	Relatively high
Magnetically induced	High precision	important	Unable to delete	High precision	Small error	Depends on Tρ	complex	high
Ultrasound	High precision	unimportant	Can not be measured	Unable to	Small error	Depends on Tρ	complex	high

Explore Oil and Gas Flow Meters

Selecting Guide for Oil level measurement

Oil tank volume
- ·For large tanks (10000~100000m3) and relatively large liquefied gas tanks, higher performance level gauges can be used, and general level gauges can be used for medium and small tanks;
- Read more about: Ultrasonic Tank Level Sensors for Tank Level Monitoring
·Oil tank use
- High-precision level gauges should be used for trade tanks, and general level gauges can be used for intermediate tanks;
Medium characteristics
- When storing high-viscosity media (such as heavy oil), try to use a level gauge that does not or has little contact with the measured medium. Such as radar type, ultrasonic type and magneto-induced level gauge, light oil can use general level gauge;
Actual needs of users
- ·If the user requires high measurement accuracy and low investment restrictions, a level gauge with good performance can be used. Under normal circumstances, the old tank area can be retrofitted or updated according to the use and maintenance of the original level gauge.

Extended reading: The Secret of Ultrasonic Level Measurement

Featured Oil level measurement devices

**Non-Contacting Radar Level Measurement**

**Float Level Sensors – Single and Multipoint**

**SIRD70 Guided Wave Radar Level Transmitters**

**HS-ULC-Pro Ultrasonic Non-contact Liquid Level Controller**

**ULT-100A Ultrasonic Level Transducer**

**HS-2000 Ultrasonic Tank Level Sensor-External Mounted**

**HS-ULC Ultrasonic Level Switch-External Mounted**

Frequently
Asked
Questions

Help Center

Measuring and monitoring fluid levels accurately and precisely requires choosing the correct methodology for the target medium and vessel.

Generally, you will choose among six methods for measuring and monitoring fluid levels, each with advantages and disadvantages:

Continuous float level transmitters
Differential pressure transmitters
Load cells
Radar level transmitters
Radio Frequency (RF capacitive level transmitters)
Ultrasonic level transmitter

A tank level sensor is a level sensor used to measure the tank level. The liquid level is the level of the liquid in a sealed container (such as a water tank) or an open container (water tank). The instrument that measures the liquid level is called a liquid level sensor, a liquid level gauge, or a liquid level transmitter. The liquid level sensor is a kind of level instrument. Hydrostatic, Ultrasonic, Magnetostrictive, Radar, Differential Pressure are common choices for tank level measurement. Liquid level sensors have been around for decades for leak detection or level measurement. Commonly measured mediums are Water, Fuel, Diesel, Gasoline, diesel, liquefied gas, liquid ammonia, etc.

Extended reading: Ultrasonic Oil Level Sensor-External Paste-Truck Fuel Tank

Different tank level sensors have different measurement principles. Such as mechanical, radar, ultrasonic, etc.

Extended reading: ultrasonic level sensor for diesel tank

In the petrochemical industry in order for the crude oil process to run continuously and smoothly care has to be taken when storing raw and finished products. Delivery of the crude oil is via pipeline or ship and stored in a large tank until it is ready for final processing.

Accurate level measurement of products of distillation is essential whilst they are being stored in different sized tanks.

In the past, it was expensive as calibratable measuring devices were implemented for level measurement. Nowadays cheaper and low-maintenance measuring systems are used for small and medium-sized tanks. Products are now usually measured by calibratable flow meters while being moved.

Extended Reading: Industrial petrol flow meters Types

Read more about: Capacitive Level Measurement System

Sino-Inst offers over 50 Solutions for Tank Level Sensing. About 50% of these are float liquid level meters, 40% are the level switches.

A wide variety of Solutions for Tank Level Sensing options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Solutions for Liquid Level Measurement instrumentation, located in China.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Solutions Guide for Liquid Level Measurement

Posted on February 18, 2021 by KimGuo11

Liquid level measurement and monitoring play an increasingly important role. Liquid level measurement and monitoring directly affect the quality of the production process.

Liquid level measurement is required for process control in many industries. Use liquid level sensors for liquid level measurement. They are divided into two categories: point level measurement and continuous level measurement.

Sino-Inst offers a variety of Solutions for Liquid Level Measurement. If you have any questions, please contact our sales engineers.

Contact us

8 Types Liquid level measurement methods

Floating ball measurement:

This method is the simplest and oldest detection method, and the price is relatively cheap.

Mainly through the up and down movement of the float to detect the change of the liquid level. It is a mechanical detection, the detection accuracy is easily affected by buoyancy, and the repeat accuracy is poor. Different liquids need to be recalibrated.

It is not suitable for viscous or impurity liquids, which can easily cause blockage of floating balls. At the same time, it does not meet the application requirements of the food hygiene industry.

Tuning fork vibration measurement:

Tuning fork measurement is only a switch output and cannot be used to continuously monitor liquid height. The most representative one is the tuning fork level switch.

The principle is: when the two vibrating forks are filled with liquid or bulk material, the resonance frequency changes, and the switching signal is sent out depending on the detection frequency change.

It can be used to monitor the height of high-viscosity liquids or solid bulk materials, mainly for anti-overflow alarms, low-level alarms, etc. It does not provide analog output. In addition, in most cases it is necessary to install holes on the side of the container.

Ultrasonic measurement:

Since the principle is to calculate the liquid level by detecting the time difference between ultrasonic transmission and reflection, it is susceptible to the energy loss of ultrasonic propagation.

It has the characteristics of easy installation and high flexibility. Usually can be installed in high places for non-contact measurement.
But when used in environments containing steam and powder, the detection distance will be significantly shortened. Therefore, it is not recommended to use it in a wave-absorbing environment with foam.

TDR (time domain reflection)/guided wave radar/microwave principle measurement:

Its name has many different names in the industry, and it has the advantages of laser measurement. Such as: easy installation, calibration, flexibility, etc.

But it is better than laser detection, such as no need to repeat calibration and multi-function output. Suitable for all kinds of liquid level detection with foam. Not affected by liquid color.

It can even be applied to highly viscous liquids, with relatively little interference from the external environment. But its measuring height is generally less than 6 meters.

Extended reading: Radar Non Contact Water Level Sensor

Laser measurement:

The laser sensor is based on the principle of optical detection and detects light by reflecting light from the surface of the object to the receiver. The light spot is small and concentrated, easy to install, calibrate, and flexible. It can be applied to continuous or limit alarm of bulk material or liquid level.

But it is not suitable for transparent liquids. Transparent liquids easily refract light, causing the light to not be reflected to the receiver. Use in foam or steam environment (cannot penetrate foam or easily interfered by steam), fluctuating liquid (easy to cause malfunction), vibration environment, etc.

Photoelectric refraction measurement:

This detection method emits a light source inside the sensor. The light source is totally reflected by the transparent resin to the sensor receiver.

But when encountering the liquid surface, part of the light will be refracted to the liquid. Therefore, the sensor detects the decrease in the amount of total reflected light to monitor the liquid level. The detection method is cheap and simple to install and debug. But it can only be applied to transparent liquids, and it only outputs switching signals.

Capacitive measurement:

Capacitive measurement mainly measures the height of the material level by detecting the change in capacitance value caused by the change of the liquid level or the height of the bulk material.

There are many types, including capacitive level gauges and capacitive proximity switches that can output analog quantities. Capacitive proximity switches can be installed on the side of the container for non-contact detection.

When choosing, it must be noted that capacitance sensors are easily affected by different container materials and solution properties. For example, plastic containers and hanging materials can easily affect capacitance sensors with analog output.

Read more about: Capacitive Level Measurement System

Static pressure measurement:

This measurement method uses a pressure sensor installed at the bottom. By detecting the bottom liquid pressure, the liquid level is converted and calculated. The bottom liquid pressure reference value is the atmospheric pressure connected to the top or the known pressure.

This measurement method requires the use of a high-precision, flush-type pressure sensor. At the same time, the conversion process requires continuous calibration.

Its advantage is that the detection is not limited by the height of the liquid level. But the higher the height, the higher the accuracy requirements of the sensor. Repeated calibration is required when using for a long time or changing liquid.

Featured liquid level measurement devices/instruments

Liquid level measurement in a closed tank

Differential Pressure Level transmitter for closed containers

For airtight containers, the inside is isolated from the atmosphere. When the process fluid fills or empties the tank, the pressure in the tank may change from positive pressure to vacuum. This change in tank pressure will directly affect the measured liquid level unless it is compensated for. This can be done by connecting the low-side pipe of the differential pressure transmitter to the top of the tank. Therefore, when measuring the liquid level of a closed tank, a differential pressure transmitter must be used.

Image Source: https://www.yokogawa.com/in/library/resources/media-publications/how-to-avoid-temperature-effects-in-differential-pressure-level-measurements/

Double flanges are used to measure the liquid level of a closed tank.

The calculation method of the differential pressure range: the height of the liquid level to be measured (unit: m) × acceleration of gravity (9.8) × (the density of the measured medium-the density of the capillary filling liquid) (unit: g/cm3) = differential pressure range (unit: KPa).

The selection must know the measurement medium, measuring range, medium temperature, pressure, capillary length, the size and pressure rating of the process connection flange and the flange standard

If you need to measure river water level, open channel level, etc. The Ultrasonic Liquid Level Sensor can be used for non-contact continuous level monitoring.

Portable Ultrasonic Liquid Level Gauge

Portable ultrasonic liquid level indicator is best choice for tanks or pipes level measurement. It is designed to measure the presence or absence of liquid at a certain height position in a tank or in pipelines. Non-contact ultrasonic detection technology.

SI-ML works perfect for detection of dangerous toxic or corrosive liquids. Under ordinary conditions, the maximum wall thickness of measurable containers is 30mm. The product is suitable for the detection of various types of liquids. Liquids are non-crystalline or other particulate matter. For example CO2 Tank. Thanks to non-contact detection technology, this level indicator is ideal for detecting hazardous toxic or corrosive liquids.

Liquid Level Measurement Converter Tools

Converter Tools used to convert and calculate liquid level values or for calculations that require liquid level measurement to obtain other measurement parameters. Help users choose suitable Level sensors and transmitters!

Liquid Level Transmitter 4-20mA Current Output Calculator	Liquid Depth/Level to Hydrostatic Pressure Calculator	Pressure to Liquid Level Calculator
Specific Gravity Calculator	Horizontal Cylindrical Storage Tank Contents/Volume Calculator	Rectangular Shaped Tank Liquid Volume/Contents Calculator
Vertical Cylindrical Tank Volume/Contents Calculator	Depth/Level Unit Converter	Volume Unit Converter

FAQ

There are 7 main types of level transmitters that Sino-Instrument offers. Each type of transmitter works in a different way, and makes it useful for different types of processes.

Capacitance Level Transmitters
Hydrostatic Level Transmitters
Magnetic Level Transmitters
Radar Fill Level Transmitters
Ultrasonic Level Transmitter
Guided Microwave Level Transmitters
Liquid Level Transmitters

Extended reading: Non Contact Liquid Level Sensor Working Principle

Tank Level Measurement is important for industry storage tank. For example, level measurement of fuel oil tanks and the interface measurement of chemical storage tanks. The liquid level sensor is a kind of level instrument. Hydrostatic, Ultrasonic, Magnetostrictive, Radar, Differential Pressure are commonly choices for tank level measurement. Here, we mainly analyze the magnetostrictive liquid level sensor in the tank applications.

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

Liquid level sensor is a kind of measuring instrument used to measure the change of liquid level in the container. It can display the change of liquid level intuitively and linearly. Among them, the magnetic float level sensor is a kind of one that can display on-site and output analog signals. Kind of level gauge.

There are many types of level gauges. There are intuitive displays such as: glass plate level gauges, glass tube level gauges, etc. There are also magnetic float level gauges, float level gauges, radar level gauges, ultrasonic level gauges, Level gauges with electronic signals such as radio frequency admittance level gauges.

Extended reading: Liquid mass flow controller

Extended Reading: How to Measure Volume of Liquid

Selection of liquid level measuring sensor

The issues that need to be considered before choosing a level measurement sensor include:

Measuring liquid or solid?
What is the temperature and pressure range of the application environment?
Need point level measurement or continuous measurement?
How much liquid level measurement range is required?
Is the tested material conductive?
Will the tested material cover or accumulate on the surface?
Will there be turbulence, foam or steam on the surface of the liquid?
Do you need contact or non-contact level measurement?
What kind of output is needed, analog, relay, digital display or other?

Extended reading: Ultrasonic liquid level sensors

Sino-Inst offers over 10 Solutions for Liquid Level Measurement. About 50% of these are float liquid level meters, 40% is the level switches.

A wide variety of Solutions for Liquid Level Measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Solutions for Liquid Level Measurement instrumentation, located in China.

KimGuo11

drurylandetheatre.com

Liquid Turbine Flow Meters

Posted on November 18, 2020 by KimGuo11

Liquid Turbine Flow Meter is one of the most ideal flow meters for measuring liquids. Liquid Turbine Flow Meter is suitable for measuring low-viscosity media, such as water, diesel, gasoline, etc.

The Liquid Turbine flow sensor can measure the instantaneous flow rate and the total cumulative volume of the liquid, and can also quantitatively control the liquid. Turbine flow meters are velocity flow meters. The principle is to use the relationship between the rotational angular velocity of the impeller placed in the liquid and the liquid flow rate. Calculate the size of the liquid flow by measuring the speed of the impeller. The flow can be displayed on-site and can also be matched with the corresponding flow totalizer.

Sino-Inst offers a variety of Liquid Turbine flow meters for Liquid flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote

Turbine Flow Meters

Featured Liquid Turbine Flow Meters

Types of Turbine Flow Meter

Different measuring medium

According to different measuring media, turbine flow meters can be divided into gas turbine flow meters and liquid turbine flow meters.

Gas turbine flowmeters are significantly different from liquid turbine flowmeters in structure.

You can learn more about gas turbine flow meters.

Different output signal

According to the different output signals, we divide the liquid turbine flowmeter into the following 4 categories.

A. On-site display type

The intelligent flowmeter is a new type of flowmeter display instrument designed with advanced single-chip microcomputer technology, and it is matched with the flow sensor (such as turbine, vortex) with pulse signal output.

Can display instantaneous flow and cumulative total.
Cumulative flow: 8 digits, 3 significant digits after the decimal point.
Instantaneous flow: six digits, can show the change per liter.
Display accuracy: ±1 display unit.
Signal output: pulse output: 1~3000Hz
External power supply +12~+24VDC
Current output: 4~20mA
External +24VDC power supply (two-wire system) built-in 2 3V lithium batteries in parallel for power supply.
When the voltage is lower than 2.7V, there will be an undervoltage indication, explosion-proof type.
Small signal removal function.

B. Pulse output type

Working voltage: +12VDC or +24VDC (the customer must select a power supply before ordering).
Signal transmission distance: less than 250 meters.
Output signal: square wave signal
Amplitude: +12VDC power supply amplitude is about 10V +24VDC power supply amplitude is about 20V
Installation: The connection between amplifier and turbine flow sensor is M16×1.5 thread. After the turbine flow sensor is installed, screw the amplifier to the turbine flow sensor. Tighten the lock nut until you feel the amplifier to the end.
Wiring: The pulse output type amplifier has three external leads, red wire, white wire and shield. The red wire is connected to the positive power supply, the white wire is the pulse output and other display instruments or equipment, and the shield is grounded.

C. 4～20mA output type

Working voltage: external power supply +24VDC (two-wire system)
Output signal: 4~20mA or 1-5V. 4mA corresponds to the zero flow of the turbine flow sensor, and 20mA corresponds to the maximum flow of the turbine flow sensor. See the nameplate of the turbine flow sensor for the flow range.
Signal transmission distance: less than 250 meters.
Installation: After the turbine flow sensor is installed, screw the amplifier to the turbine flow sensor connector (m16×1.5 thread). Tighten the lock nut by hand until you feel the amplifier is at the bottom.
Wiring: The external leads of the 4-20mA output amplifier are red and white wires. The red wire is the power wire and the white wire is the signal wire.

D. Split remote display type

Working voltage: 220VAC from external power supply
Signal transmission distance: less than 250 meters
Instantaneous four digits of the indicator: nine digits for the cumulative total
Display size: horizontal type: 160mm×80mm vertical type: 80mm×160mm
Display instrument with 4~20mA output and can be connected with computer

Know more about: Turbine type Flow Meter for Liquid & Gas technology

What liquids can be measured by Liquid Turbine Flow Meters?

In terms of measuring liquid flow, turbine flowmeters should be used in the following areas:

Partially corrosive liquid measurement. Such as sulfuric acid, hydrochloric acid, nitric acid, acetic acid and other acids and various chemical solutions.
Flow measurement of various industrial water. Including recycled water, waste water and waste liquid in various production processes in chemical, light industry, electric power, metallurgy, building materials, petroleum and other industries.
Partial low viscosity oil flow measurement. Such as gasoline, kerosene, diesel, and heavy oil and residual oil whose viscosity is reduced by heating.
Water flow measurement in large-diameter pipes, of which the full-pipe turbine flowmeter is mainly used for small and medium pipe diameters. The plug-in turbine flowmeter can be used for large pipe diameter (DN≥300mm) pipeline flow measurement. It is widely used in urban water pipelines and industrial water main lines of enterprises such as chemical industry, electric power, metallurgy, papermaking, and chemical fiber.
Measurement of non-conductive liquids. If it is said that electromagnetic flowmeters dominate the flow measurement of conductive liquids. In the field of non-conductive liquid flow measurement, electromagnetic flowmeters are powerless. The turbine flowmeter is very useful. Turbine flowmeters with small diameters introduced in recent years are more suitable for applications in this field.
Some turbine flowmeter products use a compression molding process to make the turbine flowmeter sensor into an all-plastic product. Then configure a non-contact ultrasonic detection element to measure the liquid without contact. It can be used for flow measurement of corrosive liquids and high purity liquids.
According to relevant information, in the petrochemical, pharmaceutical, food and semiconductor industries, turbine flowmeters have obtained fruitful applications. For example: methanol, formaldehyde, acetone, toluene, trichloroethylene, ethylene, butane liquid ammonia, etc. There are also pure water for the semiconductor industry, ultra-clean pure water and so on.

Turbine Flow Meter Application Case: Demineralized Water.

In fact, if your measuring medium is conductive liquid, or corrosive conductive liquid, or wastewater. It’s better consider using an electromagnetic flowmeter. Let’s take a quick look.

Extended reading: Turbine Flow meter Vs Gear Flow meter

Turbine flow meter Advantages and Disadvantages

Turbine Meter Advantages

The cost is moderate.
Very good at clean, low viscosity fluids of moderate velocity and a steady rate.
Turndown is very good as it can read very low compared to the greatest flow.
They are reliable if put in a clean fluid especially if it has some lubricity.
AGA and API approved for custody transfers.
They do cause some pressure drop where that may be a factor such as gravity flows.
High accuracy. Among all flowmeters, it is the most accurate flowmeter.
No zero drift, good anti-interference ability.
High accuracy. Among all flowmeters, it is the most accurate flowmeter.
No zero drift, good anti-interference ability.

Turbine Meter Disadvantages

Not reliable for steam.
Bearings wear out.
Requires constant backpressure to prevent cavitation.
Accuracy adversely affected by bubbles in liquids.
Turbine meters can be used with clean liquids and gases only (may need to install a strainer upstream to prevent damage from particulates).
Not applicable for measuring corrosive fluids.
May not function properly with high viscosity fluids where the flow profile is laminar.
Cannot maintain calibration characteristics for a long time.

The gas turbine flowmeter uses a turbine for measurement. It first converts the flow rate into the rotational speed of the turbine, and then converts the rotational speed into an electrical signal proportional to the flow rate.

Gas turbine flowmeter is used to detect instantaneous flow and total integrated flow. Its output signal is frequency, which is easy to digitize.

The induction coil and the permanent magnet are fixed on the housing together. When the ferromagnetic turbine blade passes the magnet, the reluctance of the magnetic circuit changes, thereby generating an induction signal.

The signal is amplified and reshaped by the amplifier and sent to the counter or frequency meter. The total accumulated flow is displayed. At the same time, the pulse frequency undergoes frequency-voltage conversion to indicate instantaneous flow.

The speed of the impeller is proportional to the flow, and the number of revolutions of the impeller is proportional to the total amount of flow. The output of the turbine flowmeter is a frequency modulated signal. It not only improves the anti-interference of the detection circuit, but also simplifies the flow detection system.

The gas turbine flowmeter has a turndown ratio of up to 10:1, and the accuracy is within ±0.2%. The time constant of the turbine flowmeter with small inertia and small size can reach 0.01 second.

Liquid Turbine Flow Meter is a speed type flow meter based on the principle of torque balance.

The fluid flows through the sensor housing. Because the blades of the impeller have a certain angle with the flow direction. The impulse of the fluid makes the blades have a rotational torque. After the friction torque and fluid resistance are overcome, the blades rotate. The speed is stable after the torque is balanced.

Under certain conditions, the speed is proportional to the flow rate.

Due to the magnetic permeability of the blade, it is in the magnetic field of the signal detector (composed of permanent magnets and coils). The rotating blade cuts the magnetic lines of force. The magnetic flux of the coil is periodically changed. Electrical pulse signals are induced at both ends of the coil.

This signal is amplified and reshaped by an amplifier. A continuous rectangular pulse wave with a certain amplitude is formed. It can be transmitted to the display instrument remotely. The instantaneous flow or total amount of the fluid is displayed.

Within a certain flow range, the pulse frequency f is proportional to the instantaneous flow Q of the fluid flowing through the sensor. The flow equation is:

Where:
f——Pulse frequency [Hz]
k——The meter coefficient of the sensor [1/m3], which is given by the calibration sheet.
Q——The instantaneous flow of fluid (under working condition) [m3/h]
3600-conversion factor in seconds

The meter coefficient of each sensor is filled in the verification certificate by the manufacturer. The k value is set in the matching display instrument. The instantaneous flow and cumulative total can be displayed.

Extended reading: Turbine Insertion Flow Meter for Large Diameter Pipeline

What is k factor in turbine flow meter?

The physical meaning of the meter coefficient K value of a turbine flowmeter is the number of pulses generated by a unit volume of fluid flowing through the flowmeter. Using the international system of units, the unit of the meter coefficient is (1/m3).

Generally, the K factor will not change when the flow rate changes, but it should not exceed the upper limit of the flowmeter too much. The K factor is a constant based on a flow rate under certain process parameters.

How to get k factor on turbine flow meter?

There are two kinds of different manufacturers k:
One is k=f/Q, that is, the number of vortices generated per unit flow;
The other k=Q/f, that is, the plate flow rate corresponding to each vortex.
The k value is calibrated with the right factory water. The sensor measures the vortex number of the instrument and compares it with the volume flow measured by the calibration device to obtain the k value.

The k value is actually related to the internal mechanical structure of the flow meter measuring tube.
Taking k=f/Q as an example, the formula is as follows:

Where

D-measuring tube diameter
St-Strouhal number, constant within a certain range of Reynolds number
d—-The characteristic width of the vortex generator
m—The ratio of the arcuate area on both sides of the vortex generator to the cross-sectional area of the pipe

In fact, this formula has no practical meaning for you. The values of d and m are difficult to measure accurately. Therefore, it is difficult to obtain an accurate k value by calculation.

How to Calibrate a Turbine Flow Meter?

Before the turbine flowmeter leaves the factory, the coefficients have been set in the table.
When the user requests to display in mass units, the coefficient has been corrected and put into the table according to the medium density provided by the user before leaving the factory. It can be used directly on site.
If the physical properties of the measured medium on site differ greatly from those of water, on-site calibration can be performed.
Specific steps are as follows:

1. Install the turbine flowmeter as required. Turn on the valve to fill the pipeline with medium to ensure that the meter works normally. Close the valve and prepare for calibration;

2. Prepare a standard container or weighing equipment, and use the weighing method as an example here (record the tare weight);

3. First record the cumulative flow of the turbine flowmeter. Turn on the valve to make the flowmeter work within the flow range. When the container is almost full, close the valve. Record the cumulative flow of the flowmeter. Read the net weight of the measured medium on the scale;

4. Put the newly measured meter coefficient into the table again;

High Pressure Turbine Flow Meter

The high-pressure liquid turbine flowmeter is a special high-pressure flowmeter designed for hydraulic equipment, engineering machinery, chemical and other high-pressure fluid industries. The housing is made of stainless steel. The table structure is simple, and the structure design is optimized. It adopts high pressure butt welding flange clamp or high pressure screw connection structure.

Wide range of applications:
High-pressure liquid measurement occasions such as chemical high-pressure pipelines, hydraulic equipment, engineering machinery, and test benches. Hydraulic oil, circulating oil, oil station, construction machinery and other high-pressure liquids.

High pressure structure design, up to 40MPa

Turbine Flow Meter Price

Compared to other liquid flow meters. The price of turbine flowmeter is more advantageous.

For example: 4″, DN100 liquid turbine flowmeter. RS485 output. Accuracy ±1.0%R. SS304 material. Reference price USD600.00.

Reference price: US $200-1,500/ Piece. Contact Sino-Inst sales manager now to request a quotation!

Extended reading: Quantitative control with turbine flowmeter

FAQ

How do I choose a flow meter?

Sino-Inst recommends that you refer to the following factors to select the flowmeter.
1.Fluid type
For clear and mixed liquids, clean gases, and mixed gases, different flow meters are required. For example, liquids are generally suitable for turbine flowmeters, and for gas, vortex flowmeters are more popular. Of course, this is only the choice of most people, not a certain one, and can be chosen according to specific needs.
2.Flow range
The fluid flow rate range should be moderate, not exceeding the range of the flowmeter.
3.Pipe size
For smaller pipe sizes, rotors, turbines, and mass flow meters are generally used. For large pipe diameters, electromagnetic flowmeters and ultrasonic flowmeters are generally used. Some pipes are not suitable for electromagnetic and ultrasonic applications.
4.Signal output
If the signal output is not required, rotameter and mechanical water meter are generally used.
The output signal has an analog quantity (4-20mA, 0-10V) and pulse output, these flowmeters can have a digital display.
5.Pressure range
Depending on the material of the flowmeter’s wetted parts, the pressure resistance is different, and the pressure resistance range of stainless steel and copper is larger. If the flow rate is relatively low, pressure loss needs to be considered. In this case, turbines and positive displacement flow meters are not suitable.

Refer to: Liquid Flow Meters Selection Guide

What is water flow meter?

Water flow meter refers to a flow meter that can measure water flow. The common water flow meter is an electromagnetic flow meter. Of course, it can also be a turbine flowmeter, an ultrasonic flowmeter, etc., as required.

What is target flow meter?

Target flow meter, also called drag force flowmeter. Target flow meter inserts a target (drag element) into the flow field. The traget usually is a flat disc or a sphere with an extension rod. There will be a differential pressure. And then target flow meters measure the drag force on the inserted target and convert it to the flow rate. Sino-Inst manufactures target flow meters for liquid, gas and steam measurement.

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KimGuo11

drurylandetheatre.com

Cryogenic Flow Meters for Sale

Posted on November 17, 2020 by KimGuo11

Cryogenic Flow Meters for Highly Accurate and Reliable Cryogenic Fluids Flow Measurement.

Commonly used Cryogenic Flow Meters include cryogenic turbine flow meters, orifice flow meters, mass flow meters, target flow meters, etc. Representative cryogenic fluids include LNG (liquefied natural gas), LN2 (liquid nitrogen), LO2 (liquid oxygen), liquefied ethylene, liquid hydrogen, liquid chlorine, and these cryogenic gases. LPG (liquefied petroleum gas) is not included in the cryogenic Fluid.

Sino-Inst offers a variety of Cryogenic Flow Meters for Cryogenic fluids flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote

More Flow Meters

A cryogenic flow meter refers to an industrial flow meter specifically used to measure extremely low-temperature media. A cryogenic flow meter can complete the flow measurement of the medium under extremely low-temperature conditions. And the measurement accuracy is good, and will not damage the flowmeter.

At present, the common industrial cryogenic medium is around -200℃. For example, liquid nitrogen, liquid oxygen.

Extended reading: Cryogenic Liquid Nitrogen Flowmeters

A cryogenic liquid is defined as a liquid with a boiling point below -130oF (-90℃).

The representative cryogenic fluids are LNG (liquefied natural gas), LN2 (liquid nitrogen), LO2 (liquid oxygen), liquefied ethylene, liquid hydrogen, liquid chlorine and these cryogenic gases. LPG (liquefied petroleum gas) is not included in the extremely low temperature fluid.

Learn more about: Handling Cryogenic Liquids

Featured Cryogenic Flow Meters

**Turbine Flowmeter-Liquid Nitrogen Flow Meter**

Cryogenic Turbine Flow Meter

The liquid nitrogen flow meter is a commonly used cryogenic flow meter. The low-temperature turbine flowmeter is a dedicated liquid nitrogen flowmeter. It can also be used to measure cryogenic liquids such as liquid oxygen.

Liquid nitrogen refers to liquid nitrogen. Liquid with extremely low temperature. In industrial production, liquid nitrogen can be used as a deep refrigerant. The low-temperature turbine flowmeter is used as a liquid nitrogen flowmeter, which can work at a low temperature of -196°C (-320.8 °F). Liquid Nitrogen Flow Meter’s Turbine sensor structure at ultra-low temperature (-196℃) is made of special customized material, and it is equipped with low-temperature resistant amplifier. Realize the instantaneous and cumulative flow monitoring of liquid nitrogen.

Know more about: Turbine type Flow Meter

Cryogenic Mass Flow Meter

Cryogenic Mass Flow Meter is developed for measuring cryogenic media such as liquefied natural gas. The flow meter consists of a mass flow sensor and a transmitter. Adopting high-efficiency heat insulation technology to effectively control the heat exchange between LNG and other low-temperature media when flowing through the sensor. Reduce the vaporization of LNG and other low-temperature media in the pipeline, thereby reducing the impact of vaporization on flow measurement.

The equipped transmitter uses a digital signal processor (DSP) to process the collected signals and has the ability to judge the real-time state of the medium and other intelligent self-diagnosis functions. Temperature measurement range: -200-350℃.

Extended reading: Liquid Mass Flow Meter

Orifice flowmeter for cryogenic fluid

At present, many flows measuring instruments for extremely low-temperature fluids are orifice flowmeters, and their reliability is also very high.

The material is 316L;
In order to prevent fluid leakage caused by cold shrinkage. It is recommended to use welding method to connect, the orifice plate and the pipe use the same material;
The porous orifice plate has advantages in the flow measurement of very low temperature fluids such as liquefied natural gas. Because the gas that may be generated can flow smoothly downstream from the small holes on the upper part of the orifice plate, and no gas accumulates in front of the orifice plate.

Extended reading: Fluid flow meter types

Target flowmeter for cryogenic fluid

The target flow meter also called a drag force flowmeter. The target flow meter inserts a target (drag element) into the flow field. The target usually is a flat disc or a sphere with an extension rod. There will be a differential pressure. And then target flow meters measure the drag force on the inserted target and convert it to the flow rate. Sino-Inst manufactures target flow meters for liquid, gas, and steam measurement.

It can accurately measure the flow of gas and liquid under various working conditions of normal temperature, high temperature 500℃, and low temperature -200℃;

**Natural Gas Flow Meter Selection Guide**

How does a cryogenic flow meter work?

Different cryogenic flow meters have different working principles. Here we choose the commonly used target type flowmeter to introduce the working principle.

When the medium flows in the measuring tube, the pressure difference caused by its own kinetic energy passing through the blocking member (target). And has a force on the blocking member. The magnitude of the force is proportional to the square of the velocity of the medium.

The mathematical way is as follows:
F = CdAρ • V2 / 2

In the formula: F —— the force of the choke (kg)
Cd-object resistance coefficient
A ——Axial projection area of the choke on the measuring tube (mm2)
ρ ——Density of medium under working conditions (kg / m3)
the v-average flow velocity of the medium in the measuring tube (m / s)
The force F received by the choke member (target) is transmitted to the capacitive force sensor via a rigidly connected transmission member (stem).

And the capacitive force sensor generates a voltage signal output:
V = KF
In the formula:
V——Voltage output by the capacitive force sensor (mV), K——Proportional constant, F——The acting force of the choke (target)
So, after the voltage signal is pre-amplified, AD converted. And processed by the computer. The corresponding instantaneous flow and the cumulative total can be obtained.

Extended reading: liquid nitrogen level measurement

Liquid Nitrogen-Liquid Oxygen-Liquid Co2 Flow Meter

Liquid nitrogen refers to liquid nitrogen.
Liquid nitrogen is an inert, colorless, odorless, non-corrosive, non-flammable, extremely low-temperature liquid.

Frostbite is caused by a large amount of endothermic contact during vaporization.

Nitrogen makes up the bulk of the atmosphere (78.03% by volume and 75.5% by weight).

At normal pressure, the boiling point of nitrogen is -196.56°C. 1 cubic meter of liquid nitrogen can expand to 696 cubic meters of pure gaseous nitrogen (21°C). Liquid nitrogen can be obtained at higher temperatures if pressurized.

In industry, liquid nitrogen is obtained by fractional distillation of air.
The air is first purified and then liquefied in a pressurized and cooled environment. Separation by the different boiling points of components in the air.

There is no problem when human skin directly contacts liquid nitrogen for an instant. More than 2 seconds will cause frostbite and irreversible.

Extended reading: V-Cone Flow Meter Working Principle

Liquid oxygen (commonly denoted by the abbreviation LOX or LO²) is the form of oxygen in its liquid state. It has important applications in aerospace, submarine and gas industries. Liquid oxygen is a light blue liquid with strong paramagnetic properties.

Liquid O2 has a wide range of industrial and medical uses. Liquid oxygen is produced industrially by fractional distillation of liquid air. The total expansion ratio of liquid oxygen is as high as 860:1. Because of this advantage it is widely used in industrial production and military in modern times.

Due to its low temperature properties, liquid oxygen can make the substances it comes into contact with very brittle.

Liquid oxygen is also a very strong oxidant: organic matter burns violently in liquid oxygen. Some substances may explode if immersed in liquid oxygen for extended periods of time, including asphalt.

Liquid carbon dioxide refers to the liquefaction of carbon dioxide gas into a liquid form under high pressure and low temperature.

Liquid carbon dioxide is a refrigerant. It can be used to preserve food, and it can also be used for artificial rainfall.

It is also an industrial raw material and can be used to make soda ash, urea and soft drinks.

For the above liquid nitrogen, liquid oxygen, liquid hydrogen and other extremely low temperature liquids, if you need to detect the flow. Then we recommend choosing a very low temperature turbine flowmeter or a gear flowmeter. These two flowmeters can perform excellent flow detection under extremely low temperature conditions.

The low-temperature turbine flowmeter is used as a liquid nitrogen flowmeter, which can work at a low temperature of -196°C (-320.8 °F). The Turbine sensor structure at ultra-low temperature (-196℃) is made of special customized material. Realize the instantaneous and cumulative flow monitoring of liquid nitrogen.

Nominal diameter:
Common type (0.5～300) mm;
Anti-corrosion type (6～100) mm
Insertion type (80～600)mm
Medium temperature:
Ordinary type (-20～80)℃
High temperature type (-20～120)℃
Ultra-low temperature type (-196～80)℃
Ambient temperature: (-20～55)℃;
Accuracy: ±0.2%, ±0.5%, ±1%;
Detector signal transmission line system: three-wire voltage pulse (three-core shielded cable);
Power supply: voltage: 12V±0.144V, current: ≤10mA;
Output voltage amplitude: high level ≥ 8V, low level ≤ 0.8V;

Gear flow meters are also a good choice for small-caliber liquid nitrogen measurement.

Gear flow transmitter is a type of positive displacement flow transmitter. It is a high-precision transmitter for measuring volume flow.

High pressure resistance (1.0-45MPa)
High and low temperature resistance (-196℃-200℃)
Can measure various viscous media
High precision and repeatability
Pulse output/analog output optional
Wide range ratio (1:100)
Wide measuring range
Strong anti-corrosion and anti-fouling ability (acid and alkali)

Frequently
Asked
Questions

Help Center

Turbine flow meters are velocity flow meters, also called impeller flow meters. Can be used to measure the instantaneous flow and cumulative flow of liquids and gases.

Turbine flowmeters are widely used in flow measurement: petroleum, organic liquids, inorganic liquids, liquefied gas, natural gas, coal gas and cryogenic fluids. Turbine flowmeter signals can be divided into pulse signals or current signals (4-20mA). It is suitable for use with secondary display, PLC, DCS and other computer control systems.

The purpose of the flowmeter is to measure the flow of fluid in a pipe or open channel.

Flow meters are the eyes of industrial production.

Flow meters play a big role. It not only monitors media flow in real time. Moreover, in this aspect of automation, many industrialized enterprises have greatly reduced a lot of manpower and material resources.

Some common types of flowmeters that mainly measure gases and liquids are:
Electromagnetic Flowmeter,
Vortex flowmeter,
Thermal mass flow meters,
orifice flowmeter,
Turbine flowmeter,
V cone flowmeter,
orifice flowmeter,
Porous balance flowmeter,
Metal rotameter, etc.

In my country, the absolute value of the maximum relative percentage error of the flowmeter is used as the standard for dividing the accuracy level.
The maximum relative percent error is a simplified relative error.
The calculation method is:
Relative percent error = (measured value of the measured parameter – standard value of the measured parameter) / (the upper limit of the scale – the lower limit of the scale) * 100%
In order to facilitate the transmission of the value, the country has uniformly stipulated the series of accuracy grades of the instrument.

Remove the “±” and “%” numbers from the relative percent error of the flowmeter. It can be incorporated into the national unified instrument accuracy grade series:

The accuracy of the first-class standard flowmeter: 0.005, 0.02, 0.05;
The flowmeter accuracy of the secondary standard: 0.1, 0.2, 0.35, 0.5;
Accuracy of general industrial flowmeter: 1.0, 1.5, 2.5, 4.0.

In addition, according to different uses. The accuracy of the flowmeter can also be divided into different grades:

The accuracy level of the flowmeter used in scientific experiments is above 0.05;
Most of the instruments used for industrial testing are in grades 0.1 to 4.0. Among them, the standard meters used for calibration are mostly grade 0.1 or 0.2. Most of the instruments used on site are grade 0.5 to 4.0.
The instruments used for industrial testing are mostly in the 0.1 to 4.0 level.

Coriolis mass flow meters should be the most accurate flow meters on the market today.
Of course, the user only needs to choose the precision that meets the needs.

CO2 flow meters are instruments that can measure the flow of gaseous or liquid carbon dioxide. CO2 is a common industrial gas, and effective measurement is very important.

Carbon dioxide (CO2) is a colorless, odorless gas at room temperature and pressure. We often recommend precession vortex flowmeters, v-cone flowmeters, vortex flowmeters, gas turbine flowmeters, etc. Under different working conditions, we will choose different flow meters for customers.

Read more about: Industrial CO2 flow meters

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Sino-Inst, Manufacturer for Cryogenic Flow Meters. A wide variety of Cryogenic Flow Meters options are available to you.

Sino-Inst’s Cryogenic Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

KimGuo11

drurylandetheatre.com

Liquid Flow Meters Guide

Posted on November 13, 2020 by KimGuo11

What is a liquid flow meter?

A liquid flow meter is a kind of meter that measures the flow of liquid fluid in pipes or open channels. Liquid flow meters can effectively monitor liquid flow rates for water, fuels, chemicals and more fluids.

If you need to purchase a Liquid Flow Meter, this article will be your best Purchasing Guide. Keep reading, Please!

Flow meters are classified into liquid flow meters and gas flow meters according to the medium. Then the common liquid flow meters mainly include: vortex flowmeter, turbine flowmeter, electromagnetic flowmeter, ultrasonic flowmeter, differential pressure flowmeter, open channel flowmeter, Coriolis mass flowmeter, etc.

Sino-Inst offers a variety of Liquid Flow Meters for flow measurement. If you have any questions, please contact our sales engineers.

More Liquid Flow Meters

Featured Liquid Flow Meters

Liquid Flow Meter Types

Turbine flow meter

Turbine flow meters are the main type of velocity flow meters. It uses a multi-blade rotor (turbine) to sense the average flow velocity of the fluid. A meter from which the flow or total volume is derived. Generally, it is composed of two parts: sensor and display instrument, and it can also be made into an integral type.

Application: Turbine flowmeter is widely used in measuring petroleum, organic liquid, inorganic liquid, liquefied gas, natural gas and cryogenic fluid.

Turbine flowmeter product features

Strong resistance to impurities.
Strong anti-electromagnetic interference and anti-vibration ability.
Its structure and principle are simple and easy to maintain.
Almost no pressure loss, saving power and electricity consumption.

Extended Reading: Liquid Turbine Flow Meter

Electromagnetic flow meter

Electromagnetic flowmeter is an instrument for measuring conductive liquid made according to Faraday’s law of electromagnetic induction.

Application:

The electromagnetic flowmeter has a series of excellent characteristics, which can solve the problems that other flowmeters are not easy to apply, such as the measurement of dirty flow and corrosion flow.

Electromagnetic flowmeters have a wide range of applications, and large-caliber meters are mostly used in water supply and drainage projects;
Small and medium calibers are often used in high-demand or difficult-to-measure occasions, such as the cooling water control of the blast furnace tuyere in the iron and steel industry, the measurement of pulp and black liquor in the paper industry, the strong corrosive liquid in the chemical industry, and the ore pulp in the non-ferrous metallurgical industry;
Small calibers and tiny calibers are often used in places with hygiene requirements such as the pharmaceutical industry, food industry, and biochemistry.

Electromagnetic flowmeter product features:

Two-way measurement system.
The straight pipe section required by the sensor is shorter, and the length is 5 times the pipe diameter.
Low-pressure loss
The measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity
Mainly used in sewage treatment.

Vortex flow meter

The vortex flowmeter is a meter in which a non-streamlined vortex generator is placed in the fluid, and the fluid is alternately separated on both sides of the generator to release two series of regularly staggered vortices. When the flow cross-section is constant, the flow velocity is proportional to the volume flow. Therefore, the flow can be measured by measuring the oscillation frequency.

Application: The vortex flowmeter has developed rapidly and has become a general-purpose flowmeter.

Vortex Flowmeter Product Features

The structure is simple, firm, no moving parts, high reliability, and reliable long-term operation.
The installation is simple and the maintenance is very convenient.
The detection sensor does not directly contact the measured medium, with stable performance and long life.
The output is a pulse signal proportional to the flow rate, with no zero drift and high accuracy.
The measurement range is wide, and the range ratio can reach 1:10.
The pressure loss is small, the operating cost is low, and it is more energy-saving.

Extended reading: Threaded Vortex Nitrogen Gas Flow Meter

Mass flow meter

The principle of flow is directly related to the measurement; the indirect mass flowmeter is indirectly multiplied by the density meter and the volume flow to obtain the mass flow.

Application:
In the case of high temperature and high pressure in modern industrial production, the application of direct mass flowmeter encounters difficulties due to factors such as material and structure;
However, indirect mass flow meters are not suitable for practical applications due to their density being limited by the scope of application of humidity and pressure.

Mass flow meter product features:

No mechanical transmission mechanism, small size, lightweight, easy to maintain
High precision
No moving parts inside, good stability
Wide range ratio, much better than other traditional instruments

Read more about: Gas Thermal Mass Flow Meter

Ultrasonic flow meter

The ultrasonic flowmeter is designed based on the principle that the speed of ultrasonic propagation in the flowing medium is equal to the geometric sum of the average flow velocity of the measured medium and the speed of the sound wave itself. It also reflects the flow rate by measuring the flow rate. Ultrasonic flow meters can be divided into time difference type and Doppler type according to the measurement principle.

Application:

The propagation time method is applied to clean, single-phase liquids and gases. Typical applications include factory discharge liquid, strange liquid, liquefied natural gas, etc.;
Gas application has good experience in the field of high pressure natural gas;

The Doppler method is suitable for two-phase fluids with low heterogeneous content. Such as untreated sewage, factory effluent, and dirty process fluids, it is usually not suitable for very clean liquids.

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Target flow meter

Features

The whole instrument has a solid structure and no moving parts, plug-in structure, easy to disassemble
The dry calibration method can be used on the spot, that is, the weight hanging method is used.
With integrated temperature and pressure compensation, directly output quality or standard
The measuring range can be changed by replacing the baffle (target) according to actual needs
Strong vibration resistance, pulsating flow can be measured within a certain range.

Differential pressure flow meter liquid flow metering

The differential pressure flowmeter is a meter that calculates the flow rate based on the differential pressure generated by the flow detection element installed in the pipeline, the known fluid conditions and the combined size of the detection element and the pipeline.

Application: Differential pressure flowmeter has a wide range of applications, and various objects have applications in the flow measurement of closed pipelines.
Such as fluid: single-phase, miscible, clean, dirty, viscous flow, etc.;
Work: normal pressure, high pressure, vacuum, normal temperature, high temperature, low temperature, etc.;
Pipe diameter: from a few millimeters to a few meters; flow: subsonic speed, sound speed, pulsating flow, etc.
Its consumption in various industrial sectors accounts for about 1/4 to 1/3 of all flow meters.

The most commonly used liquid differential pressure flowmeter is the orifice flowmeter.

Product features of orifice flowmeter:

The structure of the throttling device is easy to replicate, simple, firm, stable and reliable in performance, long in service life and low in price.
Wide application range, all single-phase flow can be measured, and part of mixed-phase flow can also be applied.
The standard throttling device can be put into use without real flow calibration.
The integrated orifice plate is simpler to install, no pressure pipe is needed, and it can be directly connected to a differential pressure transmitter and a pressure transmitter.

Oval gear flowmeter

Features

It relies on the pressure head of the measured medium to push the oval gear to rotate for measurement.
The greater the viscosity of the medium, the smaller the leakage from the gear and the metering gap. Therefore, the larger the sticky skin of the nuclear test medium, the smaller the leakage error, and the more beneficial it is for measurement.
It is suitable for the measurement of the flow of high-viscosity media, but not for fluids containing solid particles (solid particles will jam the gear so that the flow cannot be measured). If the measured liquid medium contains gas, it will also cause measurement errors.

Positive displacement flow meter

Positive displacement flow meter, also called fixed displacement flow meter, PD flow meter for short. It is the most accurate type among flow meters. It uses mechanical measuring elements to continuously divide the fluid into individual known volume parts. The total volume of fluid is measured according to the number of times that the measuring chamber is filled and discharged with this volume of fluid one after another.

Application: Positive displacement flow meters, differential pressure flow meters, and float flow meters are listed as the three most used flow meters. They are often used for total measurement of expensive media (oil, natural gas, etc.).

Float flow meter

Float flowmeter, also known as rotameter, is a kind of variable area flowmeter. In a vertical cone tube that expands from bottom to top, the gravity of the float of circular cross section is borne by the hydrodynamic force, so that the float can be Rise and fall freely in the cone.

Application: Float flowmeter is the most widely used type of flowmeter after differential pressure flowmeter, especially in small and micro flow.

Features of Rotameter:

The most commonly used flow meter in industry and laboratories.
The structure is simple, intuitive, low-pressure loss and convenient for maintenance.
It must be installed on a vertical pipe section, and the fluid medium passes through the rotameter from bottom to top.

Extended reading: Liquid mass flow controller

Liquid Flow Meters Selection Guide

If from the upper part of this article, you do not know how to choose a suitable liquid flow meter. Then, you can follow our selection suggestions below.

Step 1: Confirm your liquid condition.

Before choosing a flow meter, you should sort out the details of your measured liquid.
such as:

Liquid name
Liquid temperature
Pipeline pressure
Liquid viscosity
Corrosive
Flow rate range
Pipe diameter

If you need to measure liquids under special circumstances, you can skip to the following:
Low temperature: Gear flow meter: High and low-temperature resistance (-196℃-200℃).
High viscosity: Oval Gear High Viscosity Flow Meter
Fuel: Industrial Fuel Flow Meters

Step 2: Identify your measurement needs.

The flow meter is designed to meet your measurement needs. Therefore, according to your needs, determine the function of the flowmeter. such as:

Measure volume flow or mass flow?
Is it necessary to display the instantaneous flow and cumulative flow locally?
What kind of signal output is needed? 4-20mA? Pulse?
What kind of installation form and size are planned? Such as ANSI150 flange? Outside clip?

Most liquid flow meters measure volumetric flow. If what you need is mass flow, you can jump to: Mass Flow Meters

If you are unwilling to change the pipeline, you can only choose to install the ultrasonic flowmeter with an external clamp.

Step 3: select the appropriate flow meter type.

Up to now, there may be many types of flow meters suitable for your measurement situation. Then you need to filter the flowmeter according to your pipe diameter and flow range.

For example, you need to measure the flow of milk. 2-inch pipe. Then you can refer to the flow range to select the appropriate flow meter.
2 inches, electromagnetic flowmeter, 2.21~35.35m³/h;
2 inches, turbine flowmeter, 4~40m3/h.

For example, what you need to measure is the water flow of a DN1000 pipeline. Then it is recommended that you choose the insertion electromagnetic flowmeter.

Step 4: Except for dedicated flow meters.

Under normal circumstances, when measuring some specific media, we will recommend a specific type of flowmeter.
such as:
Measure sewage, use an electromagnetic flowmeter.
To measure diesel oil, use a turbine flowmeter.

Step 5: Contact the manufacturer

The above liquid flow meter selection steps and selection suggestions are based on certain experiences.
If you are a newcomer, you are not sure about the above process. You can directly contact Sino-Inst sales engineers. We will provide you with the best advice.

Step 6: Combine the budget

According to your budget, choose the right liquid flow meter.
For example, you need to measure the water flow. Normally, you can choose an electromagnetic flowmeter or ultrasonic flowmeter. Then you can choose according to your budget.

Such as 2inch pipeline, DN50 electromagnetic flowmeter, USD 484.50/pc
With external clamp ultrasonic flowmeter, USD 423.00/pc

For example, 4inch pipe, DN50 electromagnetic flowmeter, USD 784.50/pc
With external clamp ultrasonic flowmeter, USD 423.00/pc

Of course, the above is our experience. It’s not absolute.

You may need the following traffic conversion tools to help you.

Extended reading: U-series Liquid Mass Flow Meter | Liquid-slurry flow measure

Liquid Flow Tools

Converters for conversion and calculation of flow. Or a calculation tool that requires flow measurement to obtain other measurement parameters. Help users choose the right flow sensor and transmitter!

DP Flow Meter Output Calculator	Flow Meter 4-20mA Current Output Calculator	Flow Velocity & Pipe Diameter to Volumetric Flow Rate Calculator
Mass Flow & Density to Volume Flow Calculator	Mass Flow Rate Unit Converter	Volume Flow Rate Converter
Volume Flow & Density to Mass Flow Calculator	Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

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FAQ

How does a liquid flow meter work?

Liquid flow meter can be divided into the following categories according to the measurement principle:
Mechanics principles: instruments that fall into this category include differential pressure type and rotor type using Bernoulli’s theorem; impulse type and movable tube type using momentum theorem; direct mass type using Newton’s second law; using fluid momentum principle Target type; turbine type using the angular momentum theorem; vortex type and vortex type using the principle of fluid oscillation; pitot tube type using total static pressure difference, volume type, weir, trough type, etc.
Electrical principle: The instruments used for this kind of principle include electromagnetic, differential capacitive, inductive, strain resistance, etc.
Acoustic principle: There is an ultrasonic method for flow measurement using the acoustic principle. Acoustic (shock wave) etc. Thermal principle: There are calorimetric, direct calorimetry, indirect calorimetry, etc. that use the thermal principle to measure flow. Optical principle: laser type, photoelectric type, etc. are instruments of this type of principle. Principles of atomic physics: nuclear magnetic resonance, nuclear radiation, etc. are instruments that belong to this type of principle. Other principles: There are marking principles (tracing principles, nuclear magnetic resonance principles), related principles, etc.

What is a flow meter used for?

A meter that indicates the measured flow rate and/or the total amount of fluid in a selected time interval. Simply put, it is an instrument used to measure fluid flow in pipes or open channels.

Where should a flow meter be placed?

Most in-line flow meters are inline flow meters. They are all connected with the pipeline under test. Connect by flange, thread, etc.
The Insertion flowmeter is installed on the pipe under test by plug-in type. Suitable for larger pipe diameters.
Clamp-on flowmeter. The sensor is clamped outside the pipe for flow measurement.

Sino-Inst offers over 30 Liquid Flow Meters products. About 50% of these are differential pressure flow meters. 40% are water meters (like the Insertion Turbine Flow Meter), and 40% are water treatment (like the Annubar flow meter ).

A wide variety of Liquid Flow Meters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Liquid Flow Meters, located in China.

The top supplying country is China (Mainland), which supply 100% of the Liquid Flow Meters respectively.

Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Liquid Flow Meters products are most popular in Domestic Market, Southeast Asia, and Mid East.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

KimGuo11

drurylandetheatre.com

Industrial Tank level indicators and Tank Level Gauges

Posted on November 11, 2020 by KimGuo11

Tank level indicators are level gauges that can measure and display the level of industrial liquid storage tanks. Liquid level refers to the level of liquid in a sealed container (for example oil/fuel tank) or an open container (water tank).

In industrial production, it is often necessary to know the liquid level in the storage tank. The liquid level sensor converts the liquid level signal in the container into a switch signal or a voltage and current signal. Then through the external circuit, the measurer can intuitively know the liquid level in the container. There are many types of Liquid level indicators. By reading this article, you will know what kind of level indicators is best for your tank.

Sino-Inst offers a variety of Tank level indicators for level measurement. If you have any questions, please contact our sales engineers.

Request a Quote

More level indicators

Featured Tank Level Indicators and Gauges

Hydrostatic Tank Level Indicators

Hydrostatic level measurement is based on the principle that the Hydrostatic is proportional to the height of the liquid. Hydrostatic submersible pressure level transmitter is the most commonly used level measurement sensor. Of course, the differential pressure transmitter can also measure the liquid level.

A hydrostatic level sensor is a submersible pressure transmitter that has a pressure diaphragm at the end of level probe. A hydrostatic level sensor is a submersible pressure transmitter that has a pressure diaphragm at the end of level probe. This Hydrostatic is caused by the weight of the fluid on top of the transmitter and is used to calculate the level. And the inner side of the diaphragm is vented to atmospheric pressure.

**SI-151 Hydrostatic Level Sensor**
Hydrostatic Level Sensor (Best Price), also called Hydrostatic level transmitter. Continuous level measurement in liquid applications with pressure sensors.

**SI-PCM261 Submersible Pressure Transducer**
Submersible pressure transducer with 4-20mA output,
is normal submersible pressure transmitter for level measurement.

**SMT3151TR Submersible Level Transmitter**
Hydrostatic level transmitter is also called hydrostatic level gauge. The rod-type Hydrostatic level transmitter 4-20mADC standard signal output. Flange or threaded installation. Can withstand high temperatures up to 450 ℃.

Hydrostatic Level Indicators are suitable for measuring unsealed tanks. The applicable media of Hydrostatic Level Indicators include water, oil, etc. Hydrostatic Level Indicators are the lowest cost Tank Level Indicators.

Pressure/differential pressure Tank Level Measurement

Pressure/differential pressure Tank Level Indicators refers to Diaphragm Seal Pressure Transmitters. Usually installed at the bottom of the outer tank.

Diaphragm Seal pressure transmitter can measure pressure, liquid level and flow.When the environment is extremely hot or cold, or when the process connection is difficult to connect to the measuring instrument. When the measured medium is corrosive, sticky, sticky or easily cured. Or when the process is not chemically compatible with the instrument material. It is recommended to use a diaphragm seal.

Flange Mounted Differential Pressure Transmitter

Extended Diaphragm Seal DP Level Transmitter

Remote Seal Differential Pressure Transmitter

Differential pressure(DP) level transmitter

Pressure/differential pressure Tank Level Indicators are often used to measure liquid tanks with harsh medium conditions. Such as chemical liquids. High-temperature liquids, etc. The measuring instrument should not be placed in the tank, or the medium cannot touch the sensor.

Extended reading: Hydrostatic Pressure Transmitter

Magnetic Float Level Sensors for Tank Level

A float level sensor is a kind of continuous liquid level measurement sensor. Also called float level switch, float level gauge, float level transmitter.

Float level sensors are continuous level sensors. Float level gauges use magnetic floats as measuring elements. magnetic float that rises and falls as liquid levels change. The movement of the float will generate a magnetic field. The sensor’s internal resistance changes linearly, and the intelligent converter converts the resistance change into a 4~20mA standard current signal. It can display the liquid level percentage, 4~20mA current, and liquid level value on the spot. It can also output the switching value signal to conduct liquid Bit switch control.

**SI-U02 Multi-Point Liquid Level Float Switch**

**SI-U03 Float Switch Water Level Controller**

**SI-U04 Magnetic Float Level Sensor-Reed Switch**

Magnetostrictive Level Transmitters for continuous Tank Level Measurement

Sino-Inst’s Magnetostrictive Level Transmitters can provide two independent outputs: interface; overall level. It can be applied when the difference in specific gravity drops to 0.02. Magnetostrictive Level Sensors Commonly used for the measurement of the oil-water interface. And others include acid tanks, propane containers, desalter and sewage tanks. Magnetostrictive Level Transmitters are composed of three parts: probe rod, circuit unit and magnetic float. The flexible cable type and the outer buoy type are derived from the basic model. And has a variety of communication modes 4~20mA, 0~5V, 0~10V, HART, RS-485 and so on.

LD series Rigid Probe Magnetostrictive Level Transmitter

LR series Integral flange Magnetostrictive level sensor

LT series Digital Display Magnetostrictive liquid level sensor

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

Magnetic Level Gauge for Tank Level Indicate

Magnetic Level Gauge can be widely used in petroleum, chemical, oil field, medicine, food, wine and other industries. Various storage tanks, reaction tanks, fermentation tanks, liquid ammonia storage tanks, boiler drums, high-pressure heaters, evaporators and other pressure vessels. Medium liquid level compatible with 304, 321, 316L, 0Cr18Ni9, 304 or 0Cr18Ni9+PTFE, 00Cr17Ni14Mo21Cr18Ni9Ti, PVC, PP and other materials. Even two different media interface measurement and display.

Magnetic Level Gauge can be reliably used for liquid level detection in high temperature, low temperature, high pressure, strong corrosion, highly toxic and dangerous environments.

Extended reading: Diesel fuel tank level gauges & indicators

Radar Measurement of Tank Level

Radar level transmitters use radar technology to perform non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal. The level signal output can then be utilised by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo. Radar level sensors are divided into: Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Sino-Inst produces 120GHz FMCW radar level sensor, 26GHz radar level meter, 6GHz level meter.

**SI-FMF13 FMCW Radar Water Level Sensor**

**SIRD-901 Radar Corrosive Liquid Chemical Level Sensor**

**SIRD-906 Radar Sanitary Level Sensor**

**SIRD-803 Radar Oil Tank Level Sensor**

Extended reading: Non Contact Liquid Level Sensor Working Principle

Ultrasonic Tank Level Indicators

Ultrasonic Level Sensing is a low-cost liquid level measurement technology. Ultrasonic Level Sensing sensors and transmitters are used for tank or river level measurement.

Extended reading: Ultrasonic liquid level sensors

Ultrasonic Level Sensing does not need to contact the medium, can be continuously measured, low cost. Therefore, Ultrasonic Level Sensing is very popular among users.

Ultrasonic liquid level sensors are available in general and intrinsically safe types. Output 4~20mA standard signal or output the measurement result to the secondary meter through RS-485. Meets the system’s automatic control.

Extended reading: ultrasonic level sensor price

**ULT-200A Ultrasonic fuel tank level sensor**

Tank level indicators for common tanks

Water tank level indicator

Water tank level monitoring is the most common application of Tank level indicators.

Common water, purified water, application water, etc. Less impurities. If the tank is not sealed. It can be applied to the hydrostatic input level gauge. The lowest cost. The easiest to use.

Of course, if the tank is sealed. Or there are impurities in the water. A diaphragm seal differential pressure level transmitter can be used.

According to your actual measurement installation situation, you can also choose other applicable Tank level indicators and Tank Level Gauges.

Propane tank level indicator

Propane is a gas that can be liquefied. Chemical formula CHCHCH, colorless, liquefiable gas. Slightly soluble in water, soluble in ethanol and ether.

Common Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement include: radar level sensor; magnetostrictive level sensor; float level gauge; magnetic flap level gauge; ultrasonic level gauge.

What kind of level gauge is used for Industrial propane level measurement?

Please refer to:

5 Industrial Propane Tank Level Indicators

Fuel & oil tank level indicator

Measure the level of oil storage tanks. We recommend the use of a magnetostrictive level gauge or an externally attached ultrasonic level sensor.

Advantages of magnetostrictive level gauge for measuring oil tank level:

The magnetostrictive liquid level gauge can simultaneously measure multiple parameters such as liquid level, interface level, and temperature.
The measurement range is large, and the maximum measurement range can be 20m.
Measurement grade products, high measurement accuracy, can reach up to ±1mm.
Using pure electronic technology to measure, so there is no wear, safe and reliable, and long service life
The measurement accuracy is not affected by factors such as the shape of the container and the steam in the container.
No need for regular calibration, easy installation and maintenance without tank cleaning.
Multiple signal output, easy to realize the monitoring function of the system.
The product design meets the requirements of explosion-proof standards, and achieves explosion-proof and intrinsically safe certification.

Extended reading: Capacitance level sensor advantages and disadvantages

Advantages of Ultrasonic Tank Level Sensor-External Mounted

Non-contact measurement function ——– Ultrasonic sensor probe is external. No need to open a hole in the container to be tested.
Auto-calibration function——–With self-calibration function. It overcomes the problem of reduced accuracy after long-term use of traditional liquid level gauges.
Infrared online debugging function——–Applicable to occasions where it is not suitable to open the cover for testing in dangerous situations. At the same time, it reduces the difficulty of debugging.
Self-diagnosis function——–It has its own working status diagnosis function. It also has hardware diagnosis function. It enhances the reliability and stability of the level gauge.
One-key recovery function——–When the external measuring level gauge works abnormally, it can be restored to the normal state with one key through the debugger.
Local display and remote transmission function——–The level gauge can not only display the level value on the spot in time. But also remotely transmit it to the control room through the signal line.

Extended reading: GWR Corrosive Liquid Chemical Level Sensor

large water tank level indicator

In industrial production, water tanks are widely used. In many production equipment, the measurement and control of the water tank level is directly related to the normal operation of the process production process. At present, there are many methods for measuring and controlling the liquid level of the water tank, each with its own strengths.

If the site is an open tank, it needs to have a remote transmission function. If there is no requirement for a scale, it is recommended to use a submersible level gauge. The cost is low. The principle of cable-type diffusion silicon. Simple and easy to use. , 24V power supply.
If the site needs to have a scale and a remote transmission function. That is to use a magnetic float level gauge with a remote transmission function. That is, the liquid level can be displayed on site. And the liquid level can be transmitted to the control room or PLC for display.
Pressure type liquid level transmitter. This is also the simplest principle of using pressure to display the liquid level height. It is installed at the bottom of the side-loading tank. 24V power supply.
Ultrasonic level gauge. When the ultrasonic level gauge is used, there should be no foam on site. Otherwise, the display will be inaccurate. The clean water pool can be used.

These are all very simple level gauges. But in fact, they still need to be selected according to the working conditions. Before purchasing, it is best to ask the manufacturer.

Read more about: Types of water level controller

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Extended reading: Types of Fuel-Diesel Level Sensors

If you need to measure the tank level. But you still don’t know how to choose suitable Tank level indicators and Tank Level Gauges, please contact Sino-Inst sales engineer.

Sino-Inst offers over 30 Tank level indicators and Tank Level Gauges for level measurement. About 50% of these are Radar level meters, 40% is the magnetic level sensor.

A wide variety of Tank level indicators and Tank Level Gauges for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Tank Level measurement instrumentation, located in China.

KimGuo11

drurylandetheatre.com

5 Industrial Propane Tank Level Indicators

Posted on November 9, 2020 by KimGuo11

Propane tank level indicator is also called propane tank gauge level indicator, or propane tank level gauge. What kind of level gauge is used for Industrial propane level measurement?

Propane is a gas that can be liquefied. Chemical formula CHURCH, colorless, liquefiable gas. Slightly soluble in water, soluble in ethanol and ether.
Common Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement include radar level sensor; magnetostrictive level sensor; float level gauge; magnetic flap level gauge; ultrasonic level gauge.

Sino-Inst offers a variety of Level Transmitters for level measurement. If you have any questions, please contact our sales engineers.

Request a Quote

More Level Sensors

Featured Propane Tank Level Indicators

**SIRD-801 Radar Level Sensor-Suitable for Liquid, Slightly Corrosive Liquid**

**SIRD-802 Radar Level Sensor for Corrosive Liquids**

**SIRD-902 Drop Antenna Radar Tank Level Sensor**

**Portable Ultrasonic Liquid Level Indicator**

How to Measure Propane Tank Level

Radar level transmitters use radar technology to perform a non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal. The level signal output can then be utilized by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo. Radar level sensors are divided into Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Sino-Inst produces 120GHz FMCW radar level sensor, 26GHz radar level meter, 6GHz level meter.

Extended reading: Radar Oil Tank Level Sensor

⑴ The working principle of the magnetic level gauge is based on Archimedes’ law.
Using the principle that the weight of the float is equal to the weight of the volume of the liquid discharged by the float, the float-equipped with magnetic steel changes with the change of the liquid level.
The position of the magnetic line of force in the float (that is, the actual liquid level position) drives the turning column and the turning plate through magnetic action. When the liquid level rises, the liquid phase turns red.
When the liquid level drops, the gas phase turns white or black. So as to clearly indicate the change of the liquid level in the container.

⑵ A ruler is installed on the display panel so that the liquid level can be read directly. A valve is installed at the lower end of the body for sampling and draining.

The most significant feature of the Magnetic propane tank level indicator is that the liquid medium is completely isolated from the indicator. So it is very safe and durable under any circumstances. Moreover, various types of liquid level gauges are equipped with liquid level alarm and control switches, which can realize the upper and lower limit offside alarm control or interlocking of the liquid level or boundary level.

Equipped with a dry reed chipset liquid level transmitter, it can convert liquid level and boundary signals into two-wire 4-20mADC standard signals. It is transmitted to the computer, regulator, and liquid level indicator to realize remote indication, detection, recording, and control.

Magnetic level gauges are widely used for liquid level measurement and control in various production processes such as petroleum, chemical, metallurgy, pharmaceutical, food, and electric power.

Extended reading: Industrial Tank level indicators and Tank Level Gauges

You can choose single-point or multi-point measurement and control. Can bring huge profit difference for OEM. float level sensors can be used for liquid layer measurement. Such as oil/water tanks, liquid material inventory, and measurement in high temperature, high pressure, and corrosive environments.

Extended reading: Fuel-Diesel-Water Tank Level Sensor Monitoring

Magnetostrictive Level Transmitters are used for continuous measurement of liquid level and interface. Magnetostrictive level measurement is currently the best liquid level measurement and control technology.Sino-Inst’s Magnetostrictive Level Transmitters can provide two independent outputs: interface; overall level. It can be applied when the difference in specific gravity drops to 0.02.

Magnetostrictive Level Sensors Commonly used for the measurement of the oil-water interface. And others include acid tanks, propane containers, desalter and sewage tanks.

Magnetostrictive Level Transmitters are composed of three parts: probe rod, circuit unit and magnetic float. The flexible cable type and the outer buoy type are derived from the basic model. And has a variety of communication modes 4~20mA, 0~5V, 0~10V, HART, RS-485 and so on.

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

The external measurement type level gauge is also called the externally attached ultrasonic level gauge. Its working principle is ultrasonic echo ranging, that is, ultrasonic waves are transmitted through the tank wall and then conducted in the liquid medium, and the liquid surface returns to the bottom to be received by the sensor. The height of the liquid level is calculated by the time difference. On-site OLED display, while realizing remote transmission of monitoring liquid level, realizing automatic control.

Field of application of external level gauge:

The level gauge has a wide range of applications. In particular, the application of liquid level measurement for flammable, explosive, highly corrosive, toxic and harmful pressure vessel storage tanks is more prominent;
Oil refinery: liquefied gas, propylene, propane, ethane spherical tank / horizontal tank level gauge
Chlor-alkali industry: liquid chlorine storage tank level gauge
Synthetic ammonia device: liquid ammonia spherical tank/horizontal tank level gauge
Silicone industry: spherical tank/horizontal tank level gauges such as silicon trichloride, silicon tetrachloride, trichlorosilane, etc.
Refrigeration industry: liquid ammonia, dichloroethane, hydrogen fluoride and other storage tank level gauges
Level gauge applications in other chemical fields.

Maybe you also need to measure the propane tank flow. Then you can refer to: Industrial LPG/Propane flow meter.

Still have questions?

If you cannot find an answer to your question in our FAQ, you can always contact us
and we will be with you shortly.

Contact Support

Maybe you also need to measure the propane tank flow. Then you can refer to: Industrial LPG/Propane flow meter.

Large Propane Tank Level Indicator

The External Ultrasonic Tank Level Sensor adopts the sonar echo ranging principle. It overcomes the influence of the tank wall on the transmission of ultrasonic signals. It adopts advanced digital signal processing technology. It can truly realize the non-contact, high-precision measurement of the liquid level in the tank.

The External Ultrasonic Tank Level Sensor can output 4-20mA standard signals or output the measurement results to the upper computer (or secondary meter) through the RS-485 interface. It can meet the automatic control of the system.

Extended reading: Diesel fuel tank level gauges & indicators

Wide measuring range

Range specifications are optional: 3m, 5m, 10m, 20m, 30m

Non-contact level measurement function

The ultrasonic sensor (probe) is installed externally, and there is no need to open a hole in the container to be tested.

Testable container:

Wall thickness: 2～70mm;
Tank type: horizontal tank, spherical tank, tank, vertical tank, etc.

Frequently
Asked
Questions

Help Center

Our level gauge supports local display when measuring propane tank. It also supports remote signal output such as 4-20mA. Can be used for liquid level monitoring of the control system.

Extended reading: How does a Radar Corrosive Liquid Chemical Level Sensor work?

When the ultrasonic liquid level sensor is working, the high-frequency pulse sound wave is emitted by the transducer (probe). It is reflected on the surface of the measured object (water surface). The reflected echo is received by the same transducer (probe) and converted into an electrical signal. The time between sending and receiving the pulse (the movement time of the sound wave) is proportional to the distance from the transducer to the surface of the object.

The relationship between the distance s of sound wave transmission and the speed of sound c and the transmission time t can be expressed by the formula: s=cⅹt/2
The acoustic wave is a kind of media that transmits information. It is closely related to mechanical vibration. The mechanical vibration produced by the impact and movement of objects spreads outward in the form of waves. According to the frequency of the wave generated by the vibration, it is divided into audible sound waves, infrasound waves, and ultrasonic waves. The sound waves higher than 20khz are called ultrasonic waves.
Extended reading: Guide to Ultrasonic Level Transmitters

A magnetic Level Gauge is also called a magnetic level indicator. Magnetic Level Gauge is developed based on the principle of buoyancy and magnetic effect. The magnetic float in the measuring cylinder drives the two-color turning column on the external display of the measuring cylinder to flip with the increase (decrease) of the liquid level to be measured. As the position of the float changes, the indicator moves up and down the same amount. Supports top-mounted and side-mounted. It can be used for liquid level detection in high temperature, low temperature, high pressure, strong corrosion, highly toxic and dangerous environments.

Sino-Inst offers over 10 Propane Tank Level Indicators for level measurement. About 50% of these are Radar level meters, 40% is the magnetic level sensor.

A wide variety of Propane Tank Level Indicators for level measurement options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Propane Tank Level measurement instrumentation, located in China.

KimGuo11

drurylandetheatre.com

Radar Level Measurement System for High Temperature Blast Furnace

Posted on November 7, 2020 by KimGuo11

Radar Level Measurement System for High-Temperature Blast Furnace. This article is a case introduction for a customized radar level system.

What is a blast furnace?

The blast furnace uses a steel plate as the furnace shell, and the shell is lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: throat, body, waist, belly and hearth. Due to the advantages of good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency and low energy consumption, the iron produced by this method accounts for the vast majority of the world’s total iron output.

During blast furnace production, iron ore, coke, and slag-forming flux (limestone) are charged from the top of the furnace, and preheated air is blown from the tuyere located at the lower part of the furnace along the furnace circumference.

At high temperature, the carbon in the coke (some blast furnaces also inject auxiliary fuels such as pulverized coal, heavy oil, natural gas, etc.) and the oxygen in the air are combusted to generate carbon monoxide and hydrogen. Oxygen, thereby reducing to obtain iron.

The smelted molten iron is released from the iron mouth. Unreduced impurities in iron ore and fluxes such as limestone combine to form slag, which is discharged from the slag port.

The generated gas is discharged from the top of the furnace, and after dust removal, it is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc.

The main product of blast furnace smelting is pig iron, as well as by-product blast furnace slag and blast furnace gas.

Difficulties in Level Measurement of Blast Furnace Silo

The level detection and control of blast furnace silo is very important to ensure the continuous production of blast furnace. However, due to the particularity of its working conditions, the material level measurement has the following difficulties:

The temperature is too high.
The temperature of the blast furnace silo is high. Its working temperature range is generally between 200 and 300 ℃.
The dust is large.
The dried raw materials in the blast furnace silo. Such as carbon, lime, ores, etc., will emit a large amount of dust suspended in the air during the feeding and production process.
Strong impact and wear.
The height of the blast furnace silo is much higher than that of ordinary containers. The solid material such as block material inside it will have a large downward gravitational impact on the measuring instrument during the feeding process. And each time it causes different degrees of wear and tear to the measuring instrument.
The dielectric constant varies greatly.
Since the material ratio will change and the mixing is not uniform, it may also be affected by a small amount of steam. Therefore, the dielectric constant of the medium changes greatly. At the same time, more dust in the blast furnace will also interfere with the dielectric constant.

Extended Reading: Dielectric constant for radar level transmitter

What kind of level meter can be used for blast furnace level measurement, can radar level meter be used?

To solve the problem of blast furnace level measurement, it is possible to use a radar level gauge to measure it. The radar level gauge is a continuous level measuring instrument with a measurement accuracy of up to ±1mm. The temperature can meet the measurement conditions of 1200 degrees, and fully meet the blast furnace material level measurement conditions.

In the blast furnace level measurement process, the most important thing is the selection of the level meter. Only when the on-site measurement conditions are met, can the work efficiency be effectively improved. The selection of radar level gauge can be based on three parameters of measuring medium, temperature and pressure. The second is its installation method and output signal. In this way, the difficult problem of blast furnace level measurement can be easily solved.

Extended Reading: Featured Silo Level Sensors

Introduction of Radar Level Measurement System for High-Temperature Blast Furnace

In the picture:

1. Dryer: The function of the dryer is to dry compressed air. The compressed air used for the radar purging device must be dewatered and dry compressed air. In order to ensure the service life and function of the radar device.

Air-conditioning gun: It can cool down the compressed air. After the compressed air processed by the cold air gun reaches the radar purge device, it has a cooling effect. Can protect radar.

If the dryer and the air-conditioning gun are configured at the same time, there is basically no maintenance problem after installation. It can be used normally for a long time.

The dryer and air-conditioning gun can also be configured with only one choice. Radar can also work very well. However, maintenance may occasionally be required.

The configuration of the dryer and air-conditioning gun is up to you according to your budget.

2. Solenoid valve + time relay control, their function is to control the purge frequency and time. Save energy costs.

We will make a small explosion-proof control cabinet.

After installation, you only need to set the purge frequency and time. The purge frequency and time need to be set according to the dust situation in your furnace.

3. Purge device. Use compressed air to purge the dust in the furnace while cooling down.

4.120GHz FM continuous radar level meter

5. Compressed air pipeline. The distance between the dryer and the radar must not be longer than 30 meters. That is, 5. The total length of the compressed air pipeline cannot exceed 30 meters.

6. Compressed air outlet

7.4-20mA or 485 output line. Choose according to your needs.

8. Air compressor. For supplying compressed air. Configure according to customer requirements. Customers can also purchase locally. Or, configure it in our factory.

Extended reading: Magnetostrictive Hydraulic Cylinder Position Sensor

Introduction of 120GHz FM continuous Radar Level Meter

Transmission frequency: 120GHz
Measurement accuracy: ±1mm
Measuring distance: 36m / 150m
Output mode: (4～20)mA+HART
Power supply: 24VDC
Debugging method: LCD
Temperature: Ambient temperature: -40℃～80℃
Process temperature: -40℃～200℃
Explosion-proof/protection grade: EX d C T6 Gb
Recommended use: Super strong dust storage tank, fast material flow conditions

The above parameters are conventional style parameters.

Extended reading: Radar Level Meter for Corrosive Liquids

The following table is a customized parameter list:

Code	Description
0 Not explosion-proof	Explosion-proof requirements
1 Explosion-proof	Explosion-proof requirements
1 liquid	Measuring medium
2 solid particles
3 solid powder
A 24VDC	power supply
B 220VAC	power supply
1 Guided wave hard rod type	Antenna type
2 Guided wave flexible cable type
3 Stainless steel bell mouth
4 rod antenna
5 Flat
6 Drop type
7 lens type
8 UHF 120GHz
9 Special custom
C Normal temperature type (-40～80)℃	Process temperature
H High temperature type (-40～200)℃ plus heat sink
G Ultra-high temperature type (-40～350)℃ high temperature material + heat sink
S Special high temperature (-40～1200)℃
F1 1.0MPa	Pressure Level
F2 1.6MPa
F3 2.5MPa
F4 4.0MPa
S special
L1 threaded connection (order note)	Process connection
D50 DN50 flange
D80 DN80 flange
D100 DN100 flange
S other
1 PP	Flange material
2 Tetrafluoro
3 stainless steel
4 special
A 4-20mA	output signal
B 4-20mA+HART
C RS485
C with purge	Whether with purge
N without purge	Whether with purge
L 0～70000mm optional	Range

Therefore, according to your measurement requirements, our selection is

Ultra high frequency 120G radar level gauge, model: 03A8SF21003AC

[Blast furnace installation, temperature: 400 degrees, pressure: 1.6MPA, dust inside, range: 30 meters, power supply: 24VDC, output signal: 4-20MA, two-wire system, installation size: DN100PN16 flange, with purge interface]

Extended Reading: Case: High Temperature Radar Level Transmitter for Melted Salt-Solar Photovoltaic Power Station

Necessity and feasibility of using radar level meter for blast furnace molten iron

The replacement of each product has its necessity and feasibility. It is also necessary and feasible to use radar level gauges to replace manual visual inspection in ironworks.

Before the radar level meter entered the ironmaking plant, many factories used manual visual inspection to measure the liquid level in the blast furnace. This method has many advantages and many limitations.

First of all, the molten iron temperature in the blast furnace is very high, sometimes as high as 1490 ℃, and even exceeds this temperature. Manual visual inspection requires close observation, which is very dangerous for employees who are visually inspecting.

Other seasons are fine. In winter, the visibility is low, the fog is heavy, the degree of danger is self-evident, and the accuracy of the measurement is also very poor.

Secondly, factors such as man-made or weather can easily cause the molten iron cans to be canned or overflowed, resulting in production accidents.

From the above two limitations of manual visual inspection, it is very necessary for ironworks to use meters. At least the safety of employees is guaranteed, and production accidents caused by molten iron overflow can be avoided.

Purge Device

The purging device uses the dynamic pressure compensation method of hydrodynamics to truly reflect the pressure value of each measuring point online. The purging pressure is greater than the measured pressure, which completely solves the blockage and burning of the pressure measurement pipeline under the condition of dusty and high temperature. The use of pressure regulators can stabilize the gas source provided by the power plant to ensure that the flow rate output by the flow controller is stable and runs reliably for a long time.

In the following conditions, a purging device needs to be added to the blast furnace liquid level measurement system:

First, when the measured powder concentration is relatively large, it is necessary to purge;
Second, the concentration of vapor in the measurement medium is relatively large, and condensation is easy to form on the surface of the sensor, which must be purged.
Third, when the temperature is too high, purging and cooling can also be increased.

Quotation for Radar Level Measurement System for High-Temperature Blast Furnace

Configuration	Description	Price/PC
120G radar level gauge	Model: 03A8SF21003AC	USD ?898.50
Dryer	Adsorption dryer	USD ?25.00
Air Conditioner		USD ?50.00
Solenoid valve control	Solenoid valve + time relay control	USD ?60.00
Air compressor	For supplying compressed air	USD ?05.00

Extended Reading: Case: High Temperature Radar Level Transmitter for Melted Salt-Solar Photovoltaic Power Station

Featured Radar Level Transmitters

**SI-FMF11 FMCW Radar Level Transmitter 120GHz**

Measuring medium: liquid;
Measuring range: 0.05m~30m;
Process connection: G1½A / 1½NPT thread / flange ≥DN50;
Process temperature: -40～80℃;
Process pressure: -0.1～0.3 MPa;
Antenna size: 32mm lens antenna;
Antenna material: PTFE

**SI-FMF12 Frequency Modulated Continuous Wave Radar Level Sensor**

Measuring medium: liquid Measuring range: 0.05m~35m Process connection: G2A thread/flange≥DN65 Process temperature: -40～110℃ Process pressure: -0.1～1.6MPa Antenna size: 42mm lens antenna Antenna material: PTFE

Measuring medium: liquid
Measuring range: 0.1m~100m
Process connection: flange ≥DN80
Process temperature: -40～110℃
Process pressure: -0.1～0.3MPa
Antenna size: 78mm lens antenna
Antenna material: PTFE

Application: various corrosive liquids
Measuring range: 10 meters
Process connection: thread, flange
Process temperature: -40～130℃
Process pressure: -0.1～0.3 MPa
Accuracy: ±5mm
Protection level: IP67

Application: temperature-resistant, pressure-resistant, slightly corrosive liquid
Measuring range: 30 meters
Process connection: thread, flange
Process temperature: -40～130℃ (standard type) / -40～250℃ (high temperature type)
Process pressure: -0.1～4.0MPa
Accuracy: ±3mm
Protection level: IP67

**SIRD-902T Microwave Radar Liquid Level Sensor**

Application: corrosive liquid, steam, volatile liquid
Measuring range: 20 meters
Process connection: flange
Process temperature: -40～130℃ (standard type) / -40～250℃ (high temperature type)
Process pressure: -0.1～2.0MPa
Accuracy: ±3mm
Protection level: IP67
Frequency range: 26GHz

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Sino-Inst offers over 10 Radar level transmitters for level measurement. About 50% of these are Radar level meters, 40% is the tank level sensor.

A wide variety of radar level meters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of radar level measurement instrumentation, located in China.

Request a Quote

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KimGuo11

drurylandetheatre.com

Sanitary Flow Meters for Sale

Posted on November 2, 2020 by KimGuo11

Common sanitary flow meters are sanitary magnetic flow meters and sanitary turbine flow meters. Composed of 304/316 stainless steel. A Sanitary flowmeter with Tri-Clamp fittings is easier to install and disassemble. Suitable for the food hygiene industry.

The sanitary flowmeter uses a new sanitary lining material and lining technology. At the same time, a stainless steel casing and a stainless steel clamp connection are used to facilitate the quick disassembly and cleaning of the sanitary flowmeter. It is not easy to be polluted, and can effectively prevent the accumulation of measuring fluid residue in the measuring tube. It is used in the production process of mineral water, soy sauce, jam, beer, fruit juice, rice wine, milk and other foods and in the fields of hygiene and chemical industry.

Sino-Inst offers a variety of Sanitary flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote

Turbine Flow Meters

Featured Sanitary Flow Meters for Sale

In this article, except for the sanitary magnetic flow meter and sanitary turbine flow meter. We will fully analyze the sanitary flow meter for you. And introduce other types of sanitary flow meters. This is the best Sanitary Flow Meters Buyer’s Guide.

Sanitary Turbine Flow Meter

Sanitary turbine flow meters have stainless steel bodies and come standard with Tri-Clover fittings. A Sanitary flow meter is suitable for measuring liquid without impurities. It can output pulse frequency signals. It is used to detect instantaneous flow and total integrated flow. A Sanitary flow meter can be used in food, sports drink, liquor, and other beverage industries, in preprocess applications.

Sanitary Turbine Flow Meter reference price: DN50. USD 300-700/pc.

Meets the requirements of 3-A Sanitary Standard number 28-04
316L stainless steel body and internal wetted parts
Consistent, reliable gas flow measurement
Wafer mounting configuration for limited space requirements
Anti-corrosion and anti-rust materials, suitable for the health industry;
Quick-load structure, easy to install and maintain;
High precision and good repeatability;
High-quality turbine, beyond the conventional range;

Know more about: Turbine type Flow Meter

Sanitary Magnetic Flow Meter

Sanitary Flow Meter uses a new type of sanitary lining material and lining technology, which meets the sanitary requirements of the food industry. It uses a stainless steel shell and stainless steel clamp connection. It is convenient for the quick disassembly and cleaning of the electromagnetic flow meter. Magnetic flow meter in a sanitary version which meets the strict requirements of the food-processing and bio-technology/ pharmaceutical industries.

Extended reading: Industrial Magmeters

The sensor adopts new sanitary lining material. Prevent the accumulation of measuring medium residues in the measuring tube.
The sensor adopts a quick connection scheme. The electromagnetic flowmeter is easy to disassemble, maintain and clean.
The converter uses a 16-bit embedded microprocessor for signal processing. It has high integration and fast calculation speed. The calculation accuracy is high. Fully digital signal processing. Strong anti-interference ability. Features such as reliable measurement.
The intelligent converter can simultaneously display measurement data such as volume flow percentage, instantaneous flow, and cumulative flow.
The flowmeter is a two-way measuring system with three totalizers inside. Forward total, reverse total, and difference total. It can display positive and negative flow.
With digital communication signal output such as current, pulse, RS485, RS232, Hart and Modbus.

Guess you like: Magnetic Flow Meters technical guide|What is &How they work?

Sanitary Metal Rotameter

The sanitary metal tube float flowmeter has local display type and intelligent remote transmission type. With pointer to display the instant / cumulative flow liquid crystal display. Upper and lower limit alarm output, cumulative pulse output, batch control, standard two-wire 4-20mA current output and other forms. Provides a very broad choice for users to use. In addition, the instrument uses advanced micro-processing central chip and high-quality industrial components. Ensure the excellent performance of the flowmeter in various applications.

Extended reading: How does a rotameter work

Suitable for flow measurement of small-diameter and low-velocity media;
Reliable work, small maintenance, and long life;
The requirements for straight pipe sections are not high, and the wider flow ratio is 10:1
Double-line large LCD display, optional on-site instantaneous/accumulated flow display, with backlight;
Single-axis sensitive indication;
All-metal structure, suitable for high temperature, high pressure, and strong corrosive media;
It can be used in flammable and explosive hazardous situations.

Rotameter flow meter-Variable Area Flow Meters

Sanitary Differential Pressure Flowmeter

The left part of the sanitary differential pressure flowmeter is a sanitary stainless steel shell, and the right part is the electronic component cavity. The stainless steel shell is a straight-through pipe, and the interior is designed with no gaps and no dead ends. The internal surface of the straight-through pipeline is sanitary polished.

A differential pressure sensor diaphragm is arranged in the straight-through pipeline to form a throttling device. The front side of the diaphragm of the differential pressure sensor faces the direction of fluid flow. The negative side of the diaphragm of the differential pressure sensor is parallel to the flow direction of the fluid. When fluid flows through this straight-through pipeline, due to the throttling effect of the differential pressure sensor capsule inside the pipeline, a pressure difference is formed on the positive and negative sides of the differential pressure sensor capsule.

The differential pressure sensor capsule is provided with a Swiss ROCKSENSOR differential pressure measurement chip, a static pressure measurement chip and a temperature measurement chip. It can measure and obtain the differential pressure signal on the positive and negative side of the differential pressure sensor capsule, the static pressure signal of the pipeline and the temperature signal of the fluid.

Sanitary Slurry Flow Meter

Flow measurement of Slurry and Solids is one of the most challenging applicaiton for magmeters. In wide industrial slurry pipelines, Magnetic Flow meters are ideal choice. Mag flow meters are ideal for any dirty liquid which is conductive or water based. Some types Ultrasonic flow meters can also measure flow rate of slurry, but the cost is too high. So, if you need to measure the flow of slurry or solids, We recommend using an electromagnetic flowmeter.

Extended reading: Stainless steel flow meters|304-316 optional

Tri Clamp Flow Meter

Tri Clamp Flow Meter’s clamp-type quick couplings are also called Tri-Clamp fittings.
The clamp is a connecting device for connecting grooved pipe fittings, valves and pipeline fittings. Used to tighten the connection between the quick connectors. Generally the joints are provided with gaskets, rubber, silicone and PTFE. It has good performance, high sealing and easy installation.

Advantages of Tri Clamp Flow Meter:

Fast. There is no need for welding and re-galvanizing, and the installation speed is more than 3 times faster than flange connection.
Simple. It is lighter than the flange, the locking mechanism is cleverly designed, the number of bolts is small, and there is no need to lock the holes.
Reliable
①The clamp, washer and pipe end groove are compressed on the whole circumference, and the pipe end tensile strength is high, the test pressure reaches 4.2MPa, the temperature is -30℃～100℃, and the vacuum degree can reach 0.08MPa;
②The gasket is designed as type C, which can form triple leakage prevention. The greater the pressure in the pipe, the better the seal;
③The gasket material can be selected appropriately according to the fluid medium, pipe material and temperature.
Vibration isolation and shock absorption
①Because the gap at the end of the pipe can effectively cut off the transmission of noise and vibration, the pipeline will not be affected during thermal expansion and contraction;
②The sealing gasket can also absorb noise and vibration.
Economy and safety are convenient for project budget, and it can save 20% of total project cost compared with flange connection. Construction does not require power, oxygen, or open flames.
Zero pollution. Because there is no welding slag and damage to the galvanized layer and the plastic layer in the original installation, the pipeline can be guaranteed to be unblocked. The connected pipeline, especially the fire sprinkler system, will not rust and block the equipment, sprinkler heads, etc. in the pipeline due to other connections.
Take up less space
①Flange installation space is 3:2 compared with clamp joint.
②The clamp joints and accessories can be installed first, and can be adjusted in any direction and angle, and the piping is free.
Easy maintenance.
Disassembly, washing and replacement only need to remove two clamps and four bolts, which is convenient for pipeline extension, replacement and rotation direction. Even wear.

Extended reading: Gas Rotameter Tips

3A Sanitary Flow Meters

The “3-A” standard is recognized as an important international health standard, and people in the industry will often mention it. Since 1956, the 3-A mark has become a registered mark used to prove that the materials, hygienic design, and production and assembly procedures of the equipment affixed to the label meet the requirements of the 3A standard. In order to improve the credibility of the 3-A mark, in 2003, under the leadership of the 3-A SSI, the third party verification (TPV) was implemented.

With the continuous development and progress of the certification, the 3-A symbol far exceeds a symbol. Based on decades of cooperation and recognition of key stakeholders such as dairy products, food health experts, equipment manufacturers, etc., the 3-A brand has been widely recognized in the food processing equipment market. The value of 3A is manifested in many aspects of stakeholders:

1) The value of 3A to food processors
As leading manufacturers, processors and USDA and FDA regulatory health experts have participated in the development of the 3A standard. Users of dairy processing equipment can ensure that their equipment complies with all applicable hygiene regulations and can achieve effective cleaning. And it can be expected that the inspection by the regulatory agency can be successfully completed.

2) The value of 3A to equipment manufacturers
Because of the high recognition of 3A in the sanitary equipment range. It has now become a passport to enter the US food, dairy, and pharmaceutical and sanitary equipment markets. It is also a symbol of global quality products. It is well-known in various markets around the world. Because the 3A symbol has been recognized by almost all health experts and regulatory officials. Products affixed with the 3A logo can be widely accepted worldwide.

At the same time, because each standard details the hygienic aspects of materials, design and manufacturing. Therefore, the equipment meets the requirements of processors and health experts. Standards also reduce mold, tooling costs, and the expected delivery time due to the lack of uniform standards. At the same time, 3A certification has also formed a huge marketing advantage.

Extended reading: Vortex Hygienic Flow Meter

Clamp-on flowmeter for sanitary industry

Clamp on flow meter (Model: 2000) is composed of an integrated host and ultrasonic clamp on sensor. Clamp on flow meter is widely used in online flow measurement of various liquids. Just stick the external clamp sensor on the pipe surface. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow. The installation is convenient and quick, and the non-destructive installation is truly realized.

Clamp on Flow Meter Reference price: USD 470.00/pc

Handheld Ultrasonic Flow Meter ( Model:2000H) has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Handheld Ultrasonic Flow Meter Reference price: USD 470.00/pc

Extended reading: Food grade flow meters for Food & Beverage industry

Application of sanitary flow meters

Typical applications include measuring or batch controlling water, WFI, USP water, deionized water, vaccines, clean pharmaceuticals, milk, cream, vegetable oil, wine, beer, spirits, soft drinks, juices (without pulp), and any other clean, consumable liquid.

Application Examples:

Sanitary
Food Processing
Pharmaceutical
Industries Process or Industrial
Pharmaceutical industry:
- filling and metering of infusion products such as saline and glucose water;
Food and beverage industry:
- filling and metering of liquid foods such as vegetable juice, juice, beer, and refined oil.
- brewery

Read More about: Chemical Flow Meter Guide

FAQ

Where should a flow meter be placed?

Different types of flow meters have different requirements for the choice of installation location. Where to install the specific flowmeter, you need to decide according to the product you purchase.
Such as electromagnetic flowmeter.
1. Choice of installation site:
　　·Choose a place where there is no negative pressure in the measuring tube;
　　·Avoid installing in strong electric equipment accessories such as motors, transformers, etc., to avoid electrical interference;
　　·Avoid places with strong corrosive gas around the installation location;
　　·When measuring mixed-phase fluids, avoid places that cause phase separation;
　　·The ambient temperature should generally be within the range of -25℃～60℃, avoid direct sunlight as much as possible;
　　·Installed in a vibration-free or small vibration environment, if the vibration is too large, fixed supports should be added to the pipes before and after the sensor;
　　·The relative humidity of the environment should be within the range of 10%～90%;
　　·Avoid installing in a place that can be directly drenched or submerged by rain;
2. Requirements for the length of straight pipe section: (D is the inner diameter of the flowmeter)
The electromagnetic flowmeter has relatively low requirements for the front and rear straight pipe sections. Generally for 90° elbows, T-shaped tees, reducers, fully open valves and other flow resistance parts. There should be a 5D straight pipe section away from the center line of the electrode axis of the electromagnetic flowmeter (not the end face of the sensor).
For valves with different opening degrees (such as valves with adjustable opening degrees), the length of the upstream straight pipe section needs to be 10D. One
Generally, the straight pipe downstream of the sensor only needs 3D to meet the requirements. When measuring mixed liquids of different media, the distance between the mixing point and the flowmeter must be at least 30D.
3. Installation position and flow direction:
The electromagnetic flowmeter can be installed on the pipeline horizontally, vertically and obliquely

What does a flow meter control?

The flow meter itself does not have a control function. The flowmeter can output signals according to the requirements of your control system. Such as 4-20mA, pulse signal, etc. And HART or, RS485, etc.
If you need a flow meter with a switch output function, it should be a flow switch.

What is the most accurate flow meter?

Generally speaking, the accuracy of mass flow meters is the highest. What is measured is mass quantity, which is a flow meter often used as a trade settlement.
The flowmeter can generally reach 1.0 level, and 0.5 level is considered high accuracy. The accuracy of liquid flow meters is generally 0.2%-0.5%.
Of course, the accuracy of the flowmeter still depends on the site conditions. If the measurement of temperature and pressure is not very difficult, the accuracy of the flowmeter must be relatively high. In addition, to ensure the accuracy of the flowmeter, correct installation and use are also very important.

How do you clean a flow meter?

The cleaning method of the flowmeter should be determined according to the type of the flowmeter and the measured medium. It can be rinsed with water, or a cleaning solution can be used according to specific conditions. It is best to remove and clean.

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Sino-Inst offer over 10 Sanitary Flow Meters, with Best Price.

A wide variety of Sanitary Flow Meters options are available to you, such as free samples, paid samples.

About 13% of these are magnetic flow meter, 14% are Turbine Flow Meter, 25% are Venturi flow meter, 13% are Handheld ultrasonic flow meter, and others are Liquid mass Flow Meters.

Sino-Inst is Sanitary Flow Meters suppliers, located in China. Sanitary Flow Meters products are most popular in North America, Mid East, and Eastern Europe. The United States, and India, which export 99%, 1%, and 1% of Sanitary Flow Meters respectively.

KimGuo11

drurylandetheatre.com

Natural Gas Flow Meter Selection Guide

Posted on October 29, 2020 by KimGuo11

A natural gas flow meter is mainly used for inline measurement of natural gas flow. The natural gas flow meter is mainly used for industrial production and trade settlement.

At present, the flowmeter products used for natural gas flow measurement roughly include: gas waist wheel flowmeter, gas turbine flowmeter, precession vortex flowmeter, thermal mass flowmeter, vortex flowmeter, ultrasonic flowmeter and orifice flowmeter Wait. Let’s make a simple comparison on the use of these flow meters.

Sino-Inst offers a variety of Natural gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Request a Quote

More Flow Meters

Featured Natural Gas Flow Meters

**Ultrasonic Gas Flow Meter – A series**

**Ultrasonic Gas Flow Meter – B series**

Natural Gas Flow Meter Types

The flow measurement of natural gas is currently mainly used in trade settlement and is relatively common. my country’s natural gas trade measurement is based on the volume or energy method under the legally required quality indicators for transfer measurement. At this stage, volume measurement is basically the main method.

At present, the flowmeter products used for natural gas flow measurement generally include: gas waist wheel flowmeter, gas turbine flowmeter, precession vortex flowmeter, vortex flowmeter, ultrasonic flowmeter and orifice flowmeter. Read more about: Industrial Gas Measurement with Digital Gas Mass Flow Meters

Let’s make a simple comparison on the use of these flow meters.

Roots flowmeter

Roots flowmeter is also called gas waist wheel flowmeter. Not only can it be used to measure dry gas, but also moisture (ie associated gas). Because the orifice flowmeter and turbine flowmeter are not suitable for measuring the associated gas containing droplets. Roots flowmeter has certain advantages because of no strict requirements. In addition, another advantage is that it is not sensitive to flow arterial movement.

But pay attention to the following points when measuring natural gas:

Generally, a certain mesh filter should be installed upstream of the flowmeter. To prevent the flowmeter from being stuck or blocked. And to regularly discharge sewage and check and clean the filter.
In order to prevent liquid accumulation in the measuring chamber of the flowmeter, the flowmeter should be installed vertically as far as possible. Or it is higher than the process pipeline, and the effusion should be discharged regularly.
Before the flowmeter is put into use, it must be ensured that there are no impurities such as welding slag in the pipeline, and the bypass should be opened. Prevent the flowmeter rotor from running at high speed and damaging the flowmeter.
It is necessary to observe and pay attention to the pressure before and after the flowmeter, and judge the fault in time.

In addition, Roots flowmeter has a big disadvantage. The noise is louder when the waist wheel rotates at a high speed.

Gas turbine flowmeter

Gas turbine flowmeter is a natural gas flow meter that is used more frequently at present. The advantages are simple structure and easy installation. The overall size is relatively small. The accuracy is high. The repeatability is good. The wide range can reach 15:1～25:1. In the case of high-pressure gas transmission, the range can be further increased.

The output of the gas turbine flowmeter is a pulse frequency signal. Therefore, when it is used with a programmable flow indicator, it is easy to obtain a lower system uncertainty.

The disadvantage of the gas turbine flowmeter is that the turbine rotates at a high speed, mechanical friction between the bearing and the shaft, and the service life is not very long. Therefore, attention should be paid to lubrication, and the lubrication method provided by the manufacturer can be used to regularly replenish lubricating oil.

In addition, if the high-speed gas contains larger solid particles, it is easy to damage the turbine blades. Therefore, a filter should be installed on the pipeline before the turbine flowmeter.

Precession vortex flowmeter

The precession vortex flowmeter is the first choice for some small natural gas distribution stations.

The advantage of precession vortex flowmeter: wide operating temperature range. The scope is large. The Reynolds number is within a certain range and is not affected by fluid temperature, pressure, density and viscosity. Strong applicability. Except for impurities with larger particles or longer fibers, no filter is generally required. The requirements for the upstream and downstream straight pipe sections are relatively low, just take the upstream 4D and downstream 2D straight pipe sections. The output frequency has a linear relationship with the volume flow rate.

The disadvantage is that the pressure loss is relatively large. Secondly, the precession vortex flowmeter is a fluid vibration flowmeter, which is more sensitive to pipeline vibration and electromagnetic interference. Therefore, it can only be used in an environment with low vibration and no electromagnetic interference.

Vortex flowmeter

Vortex flowmeters are currently generally used in industrial and mining enterprises for internal natural gas assessment and energy consumption measurement applications.

The overall structure design of the vortex flowmeter is reasonable, the dynamic measurement range is wide, and the pressure loss is small.

The main body of the vortex flowmeter can be made of stainless steel, which is suitable for the measurement of corrosive media. The vortex flowmeter has no moving parts and is easy to install and maintain. On-site LCD display, pulse, 4-20mA output or 485 serial communication interface. It can be connected with industrial automation system and many other advantages.

Its biggest disadvantage is that it is afraid of vibration and electromagnetic interference.

Gas ultrasonic flowmeter

Gas ultrasonic flowmeter is the latest technology flowmeter product. It has many advantages such as wide measurement range, high measurement accuracy, no pressure loss and movable parts, and low installation and use costs. So far, the governments of 12 countries including the United States, the Netherlands, the United Kingdom, and Germany have approved gas ultrasonic flowmeters as legal measuring instruments for natural gas.

The accuracy of the gas ultrasonic flowmeter is not only related to the flow rate, but also related to the gauge diameter. For small-caliber instruments, it is difficult to measure the sound wave propagation time in turbulent gas due to the short sound channel length. Therefore, it is difficult to improve the accuracy of small-caliber gas ultrasonic flowmeters.

Thermal mass flow meter

A true mass flow meter does not require temperature and pressure compensation for gas flow measurement. The measurement is convenient and accurate. The gas mass flow or standard volume flow can be obtained.

Thermal mass flow meters can perform:
Gas flow measurement in steel plants and coking plants.
Boiler air flow, secondary air flow measurement.
The flow rate of flue gas discharged from the chimney is measured.
Aeration flow measurement in water rights treatment.
Gas flow measurement in the production process of cement, cigarette and glass factories.
Compressed air flow measurement.
Flow measurement of mixed gas of various natural gas, coal gas, liquefied gas (gas), flare gas, argon gas, carbon dioxide and so on.
Gas flow measurement in coking plant.

Read more about: Gas Thermal Mass Flow Meter

Orifice flowmeter

Orifice flowmeter is currently the most used flow meter for measuring the flow of natural gas.

Over the past few decades, people have summarized dozens of special research and practical applications for natural gas measurement, and a qualitative leap has taken place on the basis of quantity. The hallmark is standardization. Even use a standard orifice flow meter. It is possible to determine the relationship between the signal (differential pressure) and the flow rate without real flow calibration, and to estimate its measurement error. It is currently the only one that meets this standard among all flow meters.

In order to eliminate the major shortcomings of its own output signal being analog signal, low repeatability, narrow range, large pressure loss, orifice flowmeter adopts microelectronics technology, computer technology, fixed-value throttle and standard nozzle technology. The device has further improved its technical level.

V cone flowmeter

The natural gas flow measurement can be measured with a V-cone flowmeter. The V-cone flowmeter has the advantages of high measurement accuracy and good stability. And in the subsequent use process, there is no need for maintenance, which can greatly improve work efficiency.

The main advantage of the V-cone flowmeter is that it has better stability than other flowmeters. Secondly speaking of caliber, V cone flowmeter has a wide range ratio. Can do DN3000 caliber. It is also unmatched by other flow meters.

In short, these 8 types of flowmeters have their own advantages and their shortcomings in the measurement of natural gas flow.

Extended reading: What Is A Venturi Flow Meter?

Natural gas flow meter selection

Faced with so many varieties of natural gas flow meters, the selection has become a difficult problem.How to scientifically and objectively select the best flowmeter is a problem that needs attention.

We believe that the selection should follow appropriate rules. Try to avoid misleading propaganda from manufacturers. Blindly choose expensive ones.

Find a flow meter that is just right for yourself, it is your ideal flow meter.

Natural gas flow meter selection can be carried out in five aspects: Instrument performance. Fluid characteristics. Installation conditions. Environmental conditions and economic factors.

The various considerations are as follows:
Performance aspects of natural gas flow meters:Accuracy. repeatability. linearity. range. pressure loss. upper and lower limit flow. signal output characteristics. response time, etc.

Fluid characteristics of natural gas flowmeter:

Fluid pressure, temperature, density, viscosity. lubricity, chemical properties, numbness. corrosion, fouling, dirt, gas compressibility. iso-index, specific heat capacity, electrical conductivity. speed of sound, mixed-phase flow, pulsating flow, etc.;

Installation conditions of natural gas flowmeter:

Pipeline layout direction, flow direction, upstream and downstream pipeline length. pipeline diameter, maintenance space, pipeline vibration. grounding, power supply, auxiliary equipment (filtration, sewage), explosion protection, etc.;

Environmental conditions for natural gas flow meters:

Environmental temperature, humidity, safety, electromagnetic interference, etc.;

Economic factors of natural gas flowmeter:

Purchase cost, installation cost, maintenance cost. calibration cost, service life, operating cost (energy consumption), spare parts, etc. Fluid vibration natural gas flowmeter. There are two types of this type of flowmeter, vortex flowmeter and precession (vortex precession) flowmeter.

Users can consider their actual situation when choosing, and analyze specific problems in detail. Choose the right flow meter product to ensure the correct measurement.

Of course, if you still have technical questions when selecting natural gas flow meters, please feel free to contact Sino-Inst sales engineers.

Portable natural gas flow meter

Currently, the Portable Gas flow meter is mainly products such as German FLEXIM and GE TransPort PT878GC. However, the cost of such products is very high.

Therefore, on the basis of cost control, we need to choose a suitable natural gas flow meter.

Although, we do not have a portable gas flow meter. But we have handheld ultrasonic liquid flow meters. Read More.

Natural gas flow meter price

Sino-Inst, as a manufacturer of natural gas flowmeters, under the premise of ensuring product quality, we provide you with competitive prices for natural gas flowmeters.

The following is the reference price of natural gas flowmeter:

Natural gas flow meter	Price
Gas turbine flowmeter	USD 600.00~1200.00
Precession vortex flowmeter	USD 500.00~ 1000.00
Vortex flowmeter	USD 370.00~ 900.00
Gas ultrasonic flowmeter	USD 1600.00~35000.00
Thermal mass flow meter	USD 709.00~ 1500.00
Orifice flowmeter	USD 400.00~ 20000.00
V cone flowmeter	USD 529.00~ 1950.00

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Sino-Inst’s Natural Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.

Sino-Inst is the risk-free choice for your gas flow measurement applications.

Sino-Inst supplies Natural Gas Flow Meters, like: gas turbine flow meter. vortex flowmeter, thermal mass flow meter, and more.

Sino-Inst’s Natural Gas Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

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