Professional Partner for Measure &amp; Control

A Rotameter flow meter is a variable area flow meter based on float position measurement. It is suitable for liquid and gas volumetric flow measurement and control.

All electromagnetic flowmeters need to be calibrated when they leave the factory. Each finished product needs to pass the calibration line inspection before leaving the factory.

It is to install the product on the assembly line. The front end adopts a strictly debugged standard table. A series of coefficients such as the diameter of the flowmeter, the damping coefficient, and the sensor coefficient of the electromagnetic flowmeter are set at the back end. To achieve the same flow rate as the standard meter.

If calibration is done on-site, it may generally be used to calibrate outside the sealed pipeline. Such as portable ultrasonic flowmeter. But the accuracy is generally 0.5. If you just check it, you can use a portable ultrasonic flowmeter.

Ultrasonic flow meters and electromagnetic flow meters have different measurement principles.

Electromagnetic flowmeter must measure conductive liquid. The ultrasonic flowmeter can measure pure single-phase liquid. It has nothing to do with the conductivity of the liquid.

The electromagnetic flowmeter must be in contact with the medium to measure. The ultrasonic flowmeter can do contact and non-contact measurement.

The electromagnetic flowmeter is a flow measuring instrument. The measuring principle of the electromagnetic flowmeter is measured according to its principle of conduction. Most of the flow measurement on the market is solved by electromagnetic flowmeters.

The electromagnetic flowmeter is a pure liquid volume measurement instrument.

The mass flow meter is a function of fluid volume and fluid temperature and pressure. Is a dependent variable. The quality of a fluid is a quantity that does not change with time, space temperature, and pressure.

Mass flow meters are compared with electromagnetic flow meters. It can measure non-conductive media. This is one of the biggest differences. In addition, the accuracy of the mass flow meter is higher. The cost is large, and there are fewer applications in the market.

There is a big difference in the performance of general-purpose electromagnetic flowmeters on the market. Some have high precision and many functions. Some have low precision and simple functions.

The basic error of the instrument with high accuracy is (±0.5%～±1%)R.
The instrument with low accuracy is (±1.5%～±2.5%)FS.
The price difference between the two is 1 to 2 times.

Extended reading: Orifice Plate Flow Meter

You may like:

Industrial Petrol Flow Meters | Selection Guide
Petrol flow meters are often used for inline monitoring of gasoline flow rates. Positive displacement & Turbine flow meters are commonly used industrial fuel flow…
Industrial Oxygen Flow Meters
Oxygen Flow Meters are digital flow meters that can measure industrial oxygen. It is very important to choose a suitable flow meter to measure and…
Industrial CO2 flow meters
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…
Biogas Flow Meters Selection Guide
Biogas Flow Meters are instruments that can measure the flow of biogas. Could be a vortex flow meter, thermal mass flow meter, etc. Commonly used…
LPG flow meters
LPG flow meter is used for flow measurement of liquefied petroleum gas. The flow measurement of LPG is very important in industrial production, transportation and…
Industrial LPG/Propane flow meter
Featured Inline Propane Flow Meter Propane is also generally referred to as liquefied petroleum gas (LPG). So what is the difference and connection between propane…
Clamp on Flow Meters for Liquid Pipes
Clamp on flow meters refers to the non-contact flow meter, or strap-on flow meters, which clamps the ultrasonic sensor outside the pipeline for measurement. Sino-Inst…
Sanitary Flow Meters for Sale
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…
Liquid Flow Meters Guide
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…
Cryogenic Flow Meters for Sale
Cryogenic Flow Meters for Highly Accurate and Reliable Cryogenic Fluids Flow Measurement. Sino-Inst offers a variety of Cryogenic Flow Meters for Cryogenic fluids flow measurement…

Magnetic flow meter manufacturers

Sino-Inst is one of the reliable Magnetic flow meter manufacturers and suppliers in China. Magnetic flow meters are applied for wastewater flow rate measurement.

Sino-Inst offers over 20 Magnetic flow meters at the Best Price. A wide variety of Magmeters options are available to you, such as free samples and paid samples.

About 40% of these are magnetic flow meters, 30% are Insertion Magnetic Flow Meter, and 30% are sanitary flow meters. Magmeters’ products are most popular in North America, the Middle East, and Eastern Europe.

You can ensure product safety by selecting from a certified supplier with ISO9001 and ISO14001 certifications.

Request a Quote

Please enable JavaScript in your browser to submit the form

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.

Reliable Turbine Flow Meter Manufacturer

Posted on December 31, 2025 by KimGuo11

Leading turbine flow meter manufacturer Sino-Inst offers high-accuracy liquid and gas meters with wide turndown and ISO certified performance.

As a manufacturer, We prioritize mechanical precision because the turbine flow meter principle relies on a simple yet highly effective law of physics: fluid velocity. When liquid or gas passes through the meter body, it impacts the angled rotor blades, causing them to rotate. The angular velocity of the rotor is directly proportional to the flow rate of the medium.

RFQ Turbine Flow Meters

Core Components and Functionality

To ensure long-term reliability in industrial environments, every precision turbine flow sensor we build consists of three critical elements:

Rotor and Blades: Lightened for sensitivity but hardened for durability against fluid impact.
High-Performance Bearings: Tungsten carbide or ceramic bearings reduce friction and extend service life.
Pickup Sensor: A magnetic or modulated sensor detects the passage of each blade, generating a frequency signal.

Liquid vs. Gas Turbine Meter Designs

The design requirements for a liquid turbine flow meter differ significantly from a gas turbine flow meter due to fluid density and compressibility.

Feature	Liquid Turbine Meter	Gas Turbine Meter
Rotor Material	Heavy-duty Stainless Steel	Lightweight Aluminum or Plastic
Bearing Type	Lubricated by the process fluid	Often self-lubricating or shielded
Inertia	High; resistant to quick surges	Low; responds to low-density gas flow
Common Use	Water, oil, chemicals	Natural gas, compressed air

K-Factor and Signal Processing

The performance of a turbine meter is defined by its K-factor, which represents the number of pulses generated per unit volume (e.g., pulses per gallon). This raw pulse output is the foundation of high-accuracy measurement.

As a manufacturer, we integrate advanced signal processing to convert these pulses into a standard 4-20mA turbine flow transmitter signal or digital outputs like RS485. This ensures the data is ready for your PLC or SCADA system without interference, maintaining accuracy even over long transmission distances.

Specialized Types of Turbine Flow Meters We Manufacture

We produce a wide range of precision turbine flow sensors designed to handle everything from clean water to volatile gases. As a dedicated turbine flow meter manufacturer, we understand that a one-size-fits-all approach doesn’t work for complex industrial environments. We offer several configurations to match your specific fluid properties and pipe requirements.

Liquid Turbine Flow Meter: Our most popular choice for water, fuels, and light chemicals. These meters are the go-to for industrial flow measurement solutions where high repeatability is a must.

Gas Turbine Flow Meter: Specifically engineered to measure natural gas, air, and nitrogen. These units feature specialized rotors to handle gas density and high velocity.

Water turbine flowmeter;
Diesel turbine flowmeter;
304 SS and 316 SS turbine flowmeters with pulse or 4-20mA output;
Plastic material turbine flowmeter;
Low flow brass and 316 SS turbine flowmeter
Ultra-high pressure turbine flowmeter;
High temperature, extremely low temperature turbine flowmeter;
Gas turbine flowmeter, etc.

Meter Type	Primary Application	Key Feature
Sanitary Turbine Flow Meter	Food, Beverage, & Pharma	316L Stainless Steel & Tri-clamp fittings
Insertion Turbine Flow Meter	Large Diameter Pipes	Easy installation without cutting large lines
Cryogenic Turbine Flow Meter	LNG & Liquid Nitrogen	Built for extreme sub-zero temperatures
High Pressure Turbine Meter	Oilfield & Hydraulics	Heavy-duty casing for high-PSI environments

Featured Industrial Turbine Flow Meters

**Low temperature Turbine Flowmeter-Liquid Nitrogen Flow Meter**

Choosing the Right Turbine Flow Meter for Your Operation

As an experienced turbine flow meter manufacturer, we know that picking the right sensor is about more than just matching pipe sizes. To get the best turbine flow meter accuracy, you need to look at the specific physics of your application.

Critical Selection Factors

To ensure you get precision turbine flow sensors that actually last, we recommend evaluating these four areas:

Fluid Type and Viscosity: A liquid turbine flow meter performs differently than a gas turbine flow meter. High-viscosity liquids can create drag on the rotor, so if you’re measuring thick oils, we need to calibrate for those specific conditions.
Flow Range Requirements: Check your minimum and maximum flow rates. If you have a trickle flow, a low flow turbine meter is necessary to maintain a linear signal.
Media Compatibility: For corrosive chemicals or abrasive slurries, standard stainless steel isn’t enough. We offer specialized alloys and hardened bearings to prevent premature wear.
Operating Pressure: High pressure turbine meters are built with thicker walls and specialized flanges to handle extreme industrial environments safely.

Sizing and Installation Pitfalls

One of the biggest mistakes we see is “line sizing”—simply buying a meter that matches the diameter of your existing pipe. If the flow velocity is too low for that pipe size, the rotor won’t spin consistently.

Factor	What to Watch For
Velocity	Ensure the flow falls within the meter’s optimal “sweet spot” (usually the middle 70% of its range).
Straight Run	You must have enough straight pipe upstream and downstream to stop turbulence from hitting the blades.
Cavitation	In liquid applications, maintain enough backpressure to prevent bubbles, which can destroy the rotor.

By focusing on these technical details, we help you avoid the common trap of frequent recalibration and ensure your industrial flow measurement solutions provide reliable data for years.

Why Choose Sino-Inst as Your Turbine Flow Meter Manufacturer

We bring decades of engineering expertise to the table, providing industrial flow measurement solutions that meet the rigorous standards of the United States and most countries market. As a direct China flowmeter manufacturer, we combine high-precision manufacturing with the cost-efficiencies your business needs to stay competitive.

Our Advantage

Engineering Depth：Decades of experience in turbine flow meter calibration and sensor physics.
Custom & OEM：We design precision turbine flow sensors tailored to your specific application requirements.
Global Logistics：Streamlined shipping and fast delivery times to North American hubs.
Expert Support：Direct technical assistance to help with sizing, installation, and troubleshooting.
Full Traceability: Every meter undergoes strict quality control and calibration checks.

We focus on delivering precision turbine flow sensors that work right out of the box. Our facility handles everything from initial design to final testing, ensuring every unit leaving our floor is built for a long service life in harsh environments. By cutting out the middleman, we provide manufacturer-direct pricing while maintaining the high-tier quality required for critical industrial processes.

Request a Quote

Please enable JavaScript in your browser to submit the form

RFQ More Pressure Sensors

The Myth of Ceramic Pressure Sensor

Posted on December 2, 2021 by KimGuo11

What is a ceramic pressure sensor?

Ceramic pressure sensors are sensor diaphragms made of ceramic alumina (Al2O3). Ceramic is a material with high elasticity, corrosion resistance, wear resistance, impact, and vibration resistance. Ceramic has good thermal stability characteristics. High-temperature sintering process for the thick film. The working temperature range of the ceramic pressure sensor is as high as -40～125℃. The high elasticity and creep resistance of ceramics. The ceramic pressure sensor has good long-term stability. Besides, the corrosion resistance of ceramics. It has advantages in the fields of refrigeration, chemical industry, and environmental protection.

The Basic Structure of Ceramic Pressure Sensor

The ceramic pressure sensor is mainly composed of a ceramic ring, a ceramic diaphragm and a ceramic cover plate.
The ceramic diaphragm acts as a sensitive elastic body. It is made of 95% AL2O3 porcelain. It is required to be flat, uniform and dense. Its thickness and effective radius depend on the design range.

The porcelain ring is shaped by high-temperature firing using a hot die-casting process. High-temperature glass slurry is used between the ceramic diaphragm and the ceramic ring. It is fired together by thick film printing and thermal firing technology. It forms a cup-shaped elastic body with a fixed peripheral edge. That is, a non-creep rigid structure should be formed in the fixed support part of the ceramic periphery.

On the upper surface of the ceramic diaphragm, which is the bottom of the porcelain cup. The circuit of the sensor is made with thick film technology. The circular groove at the lower part of the ceramic cover creates a certain gap between the cover and the diaphragm. The limit can prevent the diaphragm from rupturing due to excessive bending when it is overloaded. Form the anti-overload protection of the sensor.

Extended reading: Common Pressure Sensor Applications

Featured SI-338 Ceramic Pressure Sensor

SI-338 Ceramic pressure sensor uses ceramic or diffused silicon core. All stainless steel package, small and beautiful appearance. Suitable for occasions with limited installation space. Wide range temperature compensation, high accuracy, small size, no adjustment, wide range coverage. Support OEM processing. Ceramic pressure transmitter is used in compressor, air conditioning and other pressure measurement.

Extended reading: What Is Flush Diaphragm Pressure Sensor?

Features of Ceramic Pressure Sensor

Ceramic is a recognized material with high elasticity, corrosion resistance, wear resistance, impact and vibration resistance. The thermal stability of ceramics and its thick film resistors can make its operating temperature range as high as -40 to 135°C. It also has high accuracy and high stability for measurement. Electrical insulation degree>2kV. Strong output signal. Good long-term stability.

Ceramic sensors with high characteristics and low prices will be the development direction of pressure sensors. In Europe and the United States, there is a trend to completely replace other types of sensors. In China, more and more users use ceramic sensors to replace diffused silicon pressure sensors.

Ceramic sensitive diaphragm with high overload capacity;
Zero point and full scale laser calibration;
Excellent anti-corrosion and anti-wear performance;
Anti-shock and anti-vibration;
High precision and high stability;
Wide operating temperature range;
Small size, easy to package;
Environmental friendly;

Extended reading: What is a pressure sensor?

Ceramic Pressure Sensor Working Principle

The corrosion-resistant ceramic pressure sensor has no liquid transmission. The pressure directly acts on the front surface of the ceramic diaphragm, causing the diaphragm to produce a small deformation.

The thick film resistor is printed on the back of the ceramic diaphragm. Connected to form a Wheatstone bridge (closed bridge).

Due to the piezoresistive effect of the varistor, the bridge generates a highly linear voltage signal proportional to the pressure and proportional to the excitation voltage. The standard signal is calibrated to 2.0 / 3.0 / 3.3 mV/V according to the pressure range. Etc. Compatible with strain gauge sensors.

Calibration by laser. The sensor has high temperature stability and time stability. The sensor comes with a temperature compensation of 0～70℃. It can be in direct contact with most media.

Extended Reading: Up to 800°C High Temperature Pressure Sensor

Ceramic Pressure Sensor Types

The base material of ceramic pressure sensor is Al2O3 ceramic. According to the principle of realization, it can be divided into capacitive pressure sensor and piezoresistive pressure sensor.

The ceramic substrate and diaphragm are plated with metal and used as electrodes. The two ceramic parts are connected together by a glass seal. Maintain a controllable gap. So that the two metal electrodes form a capacitor.

If pressure is applied. Then the gap between the substrate and the diaphragm will be changed. Thereby changing the capacitance of the sensing element. The pressure-related signal output is formed by the subsequent processing circuit.

Because the edge of the ceramic diaphragm is fixed on the ceramic base. Peripheral support. When the force is applied, the middle deformation becomes larger, and the edge becomes smaller. The capacitance produces nonlinearity and reduces sensitivity.

In order to reduce temperature effects and edge effects. In the design, a circular single electrode is set on the ceramic diaphragm as the common electrode. Two electrodes are arranged on the ceramic cover plate to equalize the area. It forms a coaxial ring-shaped dual-capacitance sensor.

Extended Reading: MEMS Pressure Sensors

The center is the measurement capacitance Cp. The edge ring is the reference capacitor Cr. The outside of Cr is the fixed side. The subsequent signal conditioning circuit deals with the voltage difference between the two capacitors. The change of Cp and Cr is converted into DC voltage output by using square wave excitation signal. The magnitude of the applied pressure is measured by the difference signal of the two output voltages.

The dual-capacitor structure greatly reduces the nonlinear error of the sensor system. At the same time, when the ambient temperature changes, the two capacitors experience the same temperature change. The temperature effect of temperature on them is consistent. This offsets the measurement error caused by temperature changes. Realize the function of temperature self-compensation.

Extended reading: Featured Diaphragm Seal Pressure Transmitters

The piezoresistive pressure sensor is mainly composed of a ceramic ring, a ceramic diaphragm and a ceramic cover plate.

The ceramic diaphragm acts as a sensitive elastic body. On it, a thick film process technology is used to form a Wheatstone bridge as the sensor circuit. Due to the piezoresistive (deformation) effect of the resistor, a voltage signal is generated.

The thick film resistor is printed on the back of the ceramic diaphragm. Connected as a Wheatstone bridge (closed bridge).

When the pressure is zero. The bridge is in a balanced state, and the output voltage is zero.

When pressure is applied to the bridge. The deformation of the diaphragm causes the resistance of the four resistors of the bridge to change. The bridge is in an unbalanced state. Generate a highly linear voltage signal proportional to the pressure and proportional to the excitation voltage.

Due to the piezoresistive (deformation) effect of the resistor, a voltage signal is generated.

The standard signal is calibrated to 2.0 / 3.0 / 3.3 mV/V etc. according to the pressure range. Compatible with strain gauge sensors.

Calibration by laser. The sensor has high temperature stability and time stability. The sensor comes with a temperature compensation of 0～70℃. And can be in direct contact with most media.

Extended reading: Silicon Pressure Sensor

Frequently
Asked
Questions

There are many types of pressure sensors. Such as resistance strain gauge pressure sensors, semiconductor strain gauge pressure sensors, piezoresistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, resonant pressure sensors, etc.

Extended reading: wireless pressure transmitter working principle

Currently, the most widely used pressure sensors include:

Diffused silicon piezoresistive pressure sensor,
Ceramic piezoresistive pressure sensor,
Sputtering thin film pressure sensor,
Capacitive pressure sensor,
Sapphire pressure sensor with high temperature resistance.
But the most widely used is the piezoresistive pressure sensor, which has a very low price, high accuracy and good linearity.

Extended Reading: Electronic Pressure Switch for Air Compressor

The piezoresistive pressure sensor is constructed using the piezoresistive effect of single crystal silicon. A single crystal silicon wafer is used as an elastic element, and an integrated circuit process is used on the single crystal silicon membrane. A group of equivalent resistors are diffused in a specific direction of the single crystal silicon, and the resistors are connected into a bridge circuit. The single crystal silicon wafer is placed on Sensor cavity. When the pressure changes, the single crystal silicon produces strain, so that the strain resistance directly diffused thereon changes proportional to the measured pressure. Then the bridge circuit obtains the corresponding voltage output signal.

Extended reading: How do you calibrate a smart pressure transmitter?

Differential pressure sensor, as the name suggests, is a kind of sensor. But it is used to transmit pressure difference. So it is called differential pressure sensor.

Generally speaking, its function is mainly to measure the difference between two different pressures. And it is displayed by the sensor. The differential pressure sensor is often used to measure the pressure of the two end points before and after a certain part of a device Difference.

Extended reading: Miniature Pressure Switch

Extended Reading: Selection of pressure transmitter

Ceramic Pressure Sensor Cost

Ceramic Pressure Sensor has low cost. The price of the ceramic pressure transmitter that people often choose is basically between USD15~35. Save a lot of costs for customers.

Extended reading: extrusion melt pressure transducer

Sino-Inst offers Ceramic Pressure Sensors. A wide variety of Ceramic Pressure Sensors options are available to you. Such as free samples, paid samples.

Sino-Inst is a globally recognized manufacturer of Ceramic Pressure Sensors, located in China. Sino-Inst sells through a mature distribution network that reaches all 30 countries worldwide.

Pressure sensors products are most popular in Europe, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers. With ISO9001, ISO14001 certification.

Request a Quote

Please enable JavaScript in your browser to submit the form

Mass Flow Rate vs Volumetric Flow Rate

Posted on October 12, 2020 by KimGuo11

Mass flow rate and Volumetric flow rate is what we must use in flow measurement and control. So what is mass flow and what is volumetric flow? How to switch between them? In this post, we compare the concept of volume flow and mass flow and the conversion between the two.

Commonly used flow meters, such as orifice plates. Turbine flowmeter. Vortex flowmeter. Electromagnetic Flowmeter. Rotameter. The flow measurement value of ultrasonic flowmeter and oval gear flowmeter is the volume flow of fluid. Coriolis mass flow meters and thermal gas mass flow meters measure mass flow.

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

Request a Quote

More Flow Meters

What is Flow Rate?

Flow rate refers to the ratio of the amount of fluid flowing through the cross-section of the pipe to the time it takes for that amount to pass through the cross-section. Flow is divided into volume flow and mass flow.

What is volume flow Rate?

The volume flow rate is the flow rate expressed by the volume of the fluid quantity.
The volume flow is expressed by the formula: qv=V/t=u×A.

In the formula:

qv is the volume flow, m3/s.
V is the unit flow volume, m3.
t is the unit time, s.
u is the average flow velocity in the pipe, m/s.
A is the cross-sectional area of the pipeline, m2.

Among the commonly used flow meters, such as orifice plates, turbine flow meters, vortex flow meters, electromagnetic flowmeters, rotameters, ultrasonic flow meters, and oval gear flow meters, the flow measurement value is the volume flow of the fluid.

If you need, you can learn more about Flow Rate And Pressure Relationship.

Featured Volume Flow Meters

Volume flow unit converter

Unit	L/min	m3/h	f t 3/h	Ukgal/min	Usgal/min	US bbl/d
L/min	1	0.06	2.1189	0.21997	0.0264188	9.057
M3/h	16.667	1	35.314	3.667	4.403	151
Ft3/h	0.4719	0.028317	1	0.1038	0.1247	4.2746
Ukgal/min	4.564	0.02727	9.6325	1	1.20032	41.1
Usgal/min	3.785	0.2273	8.0208	0.8326	1	34.28
US bbl/d	0.1104	0.00624	0.23394	0.02428	0.02917	1

What is mass flow Rate?

Mass flow rate refers to the flow rate of fluid quantity expressed by mass.
The mass flow rate can be expressed by the formula: qm=m/t=ρ×u×A.

In the formula,:

qm is the mass flow rate, kg/s.
m is the unit fluid mass, kg.
ρ is the fluid density, kg/m3.
t is the unit time, s.
u is the average flow velocity in the pipe, m/s.
A is the cross-sectional area of the pipeline, m2.

Extended reading: Gas mass flow controller working principle

Featured Mass Flow Meters

**T-series Triangle Coriolis Mass Flowmeter**

**V-series Curved Digital Mass Flow Meter**

Volumetric Flow Rate Units

“Volumetric Flow Rate Units” and “Volume Flow Rate Units” are essentially identical—both refer to the units used to measure the volume of fluid per unit time. The only difference is that the former (using the adjective “volumetric”) is more commonly used in formal technical contexts, while the latter (using the noun “volume” directly) is more concise and conversational, and they are interchangeable in practical applications.

Volumetric (or volume) flow rate units combine volume and time metrics. Common examples include:

SI & Metric Units:
- m³/s (cubic meters per second, standard SI unit)
- m³/h (cubic meters per hour)
- L/s (liters per second), L/min (liters per minute)
- cm³/s (cubic centimeters per second, for small flows)
Imperial/US Units:
- GPM (gallons per minute; 1 imperial gal ≈ 4.546 L; 1 US gal ≈ 3.785 L)
- gal/h (gallons per hour)

Key Conversions

1 m³/s = 3600 m³/h = 1000 L/s = 60,000 L/min
1 m³/s ≈ 13,208 imperial GPM ≈ 15,850 US GPM

Notes

Ensure unit consistency with density (e.g., use m³/s with kg/m³ for mass flow calculations).
Distinguish imperial vs. US gallons to avoid errors.

mass flow rate units converter

1 kilogram per second (kg/s)

=3600.0000 kilograms per hour (kg/h)

=3.6000 tons per hour (t/h)

=86.4000 tons per day (t/d)

=2.8800×104 tons per year (t/a)

= 2.2046 pounds per second (lb/s)

= 7936.6414 pounds per hour (lb/h)

= 1.9048 x 105 pounds per day (lb/d)

Unit	(t/h)	(kg/h)	(kg/min)	(kg/s)	(UKton/h)	(lb/h)	(lb/min)	(lb/s)
(t/h)	1	103	16.6667	0.277778	0.984207	2204.62	36.7437	0.61239
(kg/h)	10^-3	1	0.0166667	2.77778×10^-4	9.84207×10^-4	2.20462	0.0367437	6.12395×10^-4
(kg/min)	0.06	60	1	0.0166667	0.0590524	132.277	2.20462	0.0367437
(kg/s)	3.6	3600	60	1	3.54315	7936.63	132.277	2.20462
(UKton/h)	1.01605	1016.05	16.9342	0.282236	1	2240	37.3333	0.62222
(lb/h)	4.53592×10^-4	0.453592	0.00755987	1.25998×10^-4	4.46429×10^-4	1	0.0166667	2.77778×10^-4
(lb/min)	0.0272155	27.2155	0.453592	0.00755987	0.0267857	60	1	0.016666
(lb/s)	1.63293	1632.93	27.2155	0.453592	1.60714	3600	60	1

Volumetric flow rate to Mass flow rate

The mass flow rate and volume flow rate relationship can be briefly summarized as follows:

If the mass flow of the flow is known and needs to be converted into volume flow, the following formula can be used: qv=qm/ρ. In the formula, qv is volume flow, m3/s. qm is mass flow, kg/s. ρ is fluid Density, kg/m3.
If the volume flow rate of the fluid is known, it needs to be converted into a mass flow rate, which can be done with the formula: qm=qv×ρ.

volumetric flow rate to mass 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

How to convert air volume flow to air mass flow?

The conversion factor between air volume flow rate and air volume flow rate is 1.29. That is, to convert the volume flow of air into the mass flow, multiply the coefficient by 1.29.

Solution: Let the mass of air passing in t hours be m kg, the volume be V cubic meters, and the known air density ρ = 1.29 kg/m3.

Then the volume flow rate of the air qv=V/t (cubic meters/hour), and the mass flow rate qm=m/t (kg/hour).

And because air quality = air density x air volume, m = ρV = 1.29V.

Then qm=m/t=ρV/t=ρqv=1.29qv.

That is, to convert the volume flow of air into a mass flow, multiply the coefficient by 1.29.

Converter Tool: Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

Density, Mass Flow, and Volumetric Flow Relationship

A description of the relationship between density, mass flow rate, and volumetric flow rate. The following video provides a good explanation.

Video source: https://www.youtube.com/watch?v=4KNfADc77XU

Frequently
Asked
Questions

If the volume flow rate of the fluid is known, it needs to be converted into mass flow rate, which can be carried out by the formula: qm=qv×ρ

Volume flowrate (Volume Flowrate) is the volume of fluid passing through the flow section per unit time, referred to as flow rate, expressed by Q.
Flow rate expressed in volume/time or volume/time. Such as: m³/h ,l/h.
Volume flow rate (Q) = average velocity (v) * pipe cross-sectional area (A)

The fluid pressure and flow rate in the pipeline are completely two concepts. For fluids with high pressure, the flow rate can be high or low.
Engineering pressure is the amount of force per unit area. The flow rate is the amount (weight or volume) of the fluid flowing through the pipe per unit time.
Here, there is another important parameter: flow rate. It is the average velocity of fluid flowing in the pipe. The unit is: the flow rate per unit area (internal section of the pipeline). That is: the flow rate multiplied by the pipe cross-sectional area equals the flow rate.
If the fluid is a gas (compressibility), the flow rate is constant, and the flow rate of a gas with high pressure is of course also large. If the size of the pipe is constant, the flow rate of the fluid with a large flow rate is of course also large; the pressure loss (i.e. pipeline resistance) is proportional to the square of the flow rate, that is, proportional to the square of the flow rate.

If the fluid under a certain pressure is directly discharged to the atmosphere under certain conditions (the diameter of the pipe is the same), the fluid pressure can be converted into velocity energy, and the flow rate of the fluid with high pressure is correspondingly high, and of course, the flow rate is also large.

MEMS Pressure Sensors

Posted on May 28, 2020 by KimGuo11

MEMS pressure sensors are pressure sensors manufactured using MEMS technology. MEMS pressure sensors include silicon piezoresistive pressure sensors and silicon capacitive pressure sensors.

MEMS pressure sensors are the earliest developed miniature sensors with a large market share. MEMS pressure sensors can be divided into piezoresistive and capacitive types. Both are micromechanical electronic sensors generated on silicon chips. MEMS pressure sensors can use high-precision, low-cost mass production with integrated circuit-like design techniques and manufacturing processes. This makes pressure control simple, easy to use, and intelligent. Compared with traditional mechanical quantity sensors, the size of MEMS pressure sensors is smaller, and the largest is no more than one centimeter. Compared with traditional “mechanical” manufacturing technology, its cost performance is greatly improved.

Sino-Inst offers a variety of MEMS pressure senors for industrial pressure measurement. If you have any questions, please contact our sales engineers.

Pressure Sensors

Featured MEMS Pressure Sensors

Industrial Pressure Sensor for OEM applications

Combined Pressure and Temperature Sensor-Dual function

Piezoresistive Differential Pressure Transmitter

Differential pressure(DP) level transmitter

Features of MEMS Pressure Sensors

Single crystal silicon sensor using German MEMS technology
Integrated sensor design using patented technology
Two-wire system. 4 ~ 20mA analog output. HART® digital communication or four-wire system. RS485 output (MODBUS protocol)

Read more about: What is a pressure sensor and how it works?

Specifications of MEMS Pressure Sensors

Range	Minimum range	DP	Range and sensor limit (kPa)	Minimum range	GP	Range and sensor limit (kPa)	Minimum range	AP	Range and sensor limit (kPa)
Code	（kPa）	Upper range (URL)	Lower limit of range (URL)	（kPa）	Upper range (URL)	Lower limit of range (URL)	（kPa）	Upper range (URL)	Lower limit of range (URL)
1	0.1	1	-1	/	/	/	/	/	/
2	0.2	5	-5	/	/	/	/	/	/
3	0.2	20	-20	0.2	20	-20	/	/	/
4	0.5	50	-50	0.5	50	-50	0.5	50	0
5	2	200	-200	2	200	-100	2	200	0
6	5	500	-500	5	500	-100	/	/	/
7	20	2000	-500	20	2000	-100	20	2000	0
8	100	10000	-500	100	10000	-100	100	10000	0
9	/	/	/	400	40000	-100	/	/	/

Measuring range of MEMS pressure sensor

Sensor type: German MEMS technology single crystal silicon sensor
Range ratio: 100: 01: 00
Accuracy grade: 0.075, 0.1, 0.2
Stability: 36 months error is ± 0.2% of maximum range
Temperature effect:
1. “0.075 level: zero point or range error is ± 0.15% / 28 ℃ of maximum range
2. 0.1 level: Zero point or range error is ± 0.2% / 28 ℃ of maximum range
3. Level 0.2: Zero point or range error is ± 0.25% of maximum range / 28 ℃ “
Output signal: “Two-wire system, 4 ～ 20mA DC, HAR T® protocol digital signal. Or four-wire system, RS485 output (MODBU S protocol)”
Metrology certification: CMC
Explosion-proof certification: “Explosion-proof type: Exd IIC T6 Gb
Intrinsically safe type: Exia IIC T6 Ga or Exib IIC T4 Gb “
Protection grade: IP67

What does MEMS mean?

MEMS is the abbreviation of Micro-Electro-Mechanical Systems. MEMS is the name of the United States. In Japan, it is called micromachine. In Europe, it is called microsystem. MEMS refers to mass production, which integrates micro-mechanisms, micro-sensors, micro-actuators, signal processing and control circuits, and interfaces. , Communication and power supply are equal to a micro device or system. MEMS is developed with the development of 1653 technology for semiconductor integrated circuit micromachining and internal ultra-precision mechanical processing technology. Currently MEMS processing technology is also widely used in microfluidic chips and synthetic biology. Chip integration of the technical process of the actual volume laboratory.

What is a MEMS pressure sensor?

MEMS pressure sensor is a pressure sensor manufactured by MEMS technology.
MEMS pressure sensors are the earliest developed miniature sensors with a large market share. The current application field has been greatly expanded, far beyond the traditional applications in industrial transmitters and other fields. Generally, MEMS pressure sensors are made by bulk silicon processing technology, and some are made by surface silicon processing technology. MEMS pressure sensors can be divided into piezoresistive and capacitive. Similar to other sensors, the MEMS pressure sensor converts the pressure into an electrical signal output during operation.

Extended Reading: Digital Pressure Sensor-RS485

Piezoresistive MEMS pressure sensor

The piezoresistive MEMS pressure sensor uses a high-precision semiconductor resistance strain gauge to form a Wheatstone bridge as a force-electric conversion measurement circuit. It has high measurement accuracy, low power consumption, and extremely low cost.

Capacitive MEMS pressure sensor

Capacitive pressure sensors use MEMS technology to produce a diaphragm grid on the silicon wafer. The upper and lower diaphragms become a group of capacitive pressure sensors. The upper diaphragm is displaced downward by pressure and changes the upper and lower diaphragms. The spacing of the grids also changes the capacitance between the plates, that is, △ pressure = △ capacitance

Read more about: Capacitive pressure transducer

How does a MEMS pressure sensor work?

The MEMS piezoresistive pressure sensor uses a circular stress cup silicon film inner wall fixed around the periphery. MEMS technology is used to directly engrave four high-precision semiconductor strain gauges on the surface with the highest stress. Make up the Wheatstone measuring bridge. As a force-electricity conversion measurement circuit. The physical quantity of pressure is directly converted into electricity. The measurement accuracy can reach 0.01% ～ 0.03% FS.

The MEMS capacitive pressure sensor uses MEMS technology to produce a diaphragm grid on the silicon chip. The two upper and lower diaphragms become a group of capacitive pressure sensors. The upper MEMS capacitive pressure sensors use MEMS technology to create a grid-like shape on a silicon wafer. The two upper and lower transverse barriers become a group of capacitive pressure sensors. The upper diaphragm is displaced downward by pressure. Changed the spacing between the upper and lower two horizontal barriers. It also changes the size of the capacitance between the boards.

Video on How MEMS Pressure Sensor Operation:

Video source: https://www.youtube.com/watch?v=juf4d3sgOJw

Applications of MEMS Pressure Sensors

Applied in the automotive industry
A new application of MEMS pressure sensors in automobiles is the transmission system pressure sensing. It is usually used in automatic devices. But it is also used in new dual clutch transmission systems. German manufacturers have introduced a MEMS solution that uses oil to protect the silicon film so that it can withstand pressures up to 70 bar. Bosch also brought huge changes to MEMS pressure sensors a few years ago. At that time, porous silicon was used to bring highly reliable MEMS devices. These devices have been used in current side airbag applications.
Applied to the medical market
The pressure sensor mainly serves as a disposable low-cost catheter for surgical operations. But they are also used in expensive equipment. Sensing pressure and differential flow in continuous positive airway pressure (CPAC) machines.
Applied in the industrial field
The main applications of MEMS pressure sensors include heating, ventilation and air conditioning (HVAC), water level measurement, and various industrial process and control applications. For example, in addition to accurate altitude and barometric pressure measurements, aircraft use sensors to monitor engines, flaps, and other components.

Extended reading: What is a pressure sensor?

Frequently
Asked
Questions

Depending on the type of pressure to be measured:
Pressure transmitter types include gauge pressure, absolute pressure, and differential pressure. Gauge pressure refers to the pressure that is less than or greater than atmospheric pressure based on the atmosphere. Absolute pressure refers to the absolute zero pressure as the reference and is higher than the absolute pressure. Differential pressure refers to the difference between two pressures.
According to the working principle of the pressure transmitter:
Strain Gauge Pressure Transducers
Capacitance Pressure Transducers
Potentiometric Pressure Transducers
Resonant Wire Pressure Transducers

First of all, the parameters that must be seen when purchasing a pressure transmitter are:
Pressure range. Range. Measurement medium. Installation method-threaded flange clamps, etc. Installation dimensions. Temperature. Whether with display. Whether with HART protocol. Output type. Current output or voltage output. Explosion-proof level, protection level. Accessories. Mounting bracket.
The above parameters will affect the price of the pressure transmitter.
Sino-Inst, as the manufacturer of pressure transmitter, offer you with the best price.

At present, there are mainly two types of MEMS pressure sensors: silicon piezoresistive pressure sensors and silicon capacitive pressure sensors. Both of these are micro-mechanical electronic sensors produced on silicon chips.

The first type: silicon piezoresistive pressure sensor

The silicon piezoresistive pressure sensor uses a Wheatstone bridge composed of high-precision semiconductor resistance strain gauges as the measurement circuit for electromechanical conversion. It has the advantages of high measurement accuracy, low power consumption, and low cost. The output of the piezoresistive sensor in the wheatstone bridge is zero. If there is no pressure change, there is almost no power consumption.

The MEMS silicon piezoresistive pressure sensor is the inner wall of a silicon membrane with a circular stress cup fixed around it. Using MEMS technology, four high-precision semiconductor strain gauges are directly engraved on the place with the largest surface stress to form a Wheatstone measurement bridge. As an electromechanical conversion measurement circuit, it directly converts the physical quantity of pressure into electrical energy. Its measurement accuracy can reach 0.01-0.03%FS.

The second type: capacitive pressure sensor

The capacitive pressure sensor uses MEMS technology to make a horizontal grid shape on a silicon wafer. The upper and lower horizontal grids form a set of capacitive pressure sensors. The upper horizontal grid moves downward under pressure to change the distance between the upper and lower horizontal grids and the capacitance between the plates, that is Pressure = Capacitance.

MEMS pressure sensors can adopt the design technology and manufacturing process similar to integrated circuits, so as to carry out high-precision, low-cost mass production, and have a wide range of applications in ventilators, automobiles, earphones, mobile phones and other fields.

Amazing Solutions for Continuous Liquid Level Measurement

Posted on February 25, 2020 by KimGuo11

Looking for a specific type or a custom continuous liquid level sensor? Sino-Inst offers High quality Liquid level sensors for continuous level measurement.

Level sensors are used in process control in many industries and they fall into two categories. Continuous level measurement sensors and Point level measurement sensors.

The point level measurement sensor is used to indicate a single discrete level, that is, to indicate a preset level. The function of this type of sensor is the upper limit alarm, which indicates the overfill condition, or the lower limit alarm condition.

Continuous level sensors are more complex, allowing level monitoring of the entire system. They measure the level of the liquid level in a range, not the level of a point. Continuous level sensors produce an analog output that is directly related to the liquid level in the container. To build a level measurement system, this output signal is transmitted to the process control loop and visual indicators.

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

Featured Continuous Level Sensors

**SI-LT Magnetostrictive level transmitter with Local Digital Display**

**SI-100 Magnetostrictive Level Sensor**

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

**ULT-100A Ultrasonic Level Transducer**

**SMT3151TR Submersible Level Transmitter–2Mpa,200m**

**SIRD90 Radar Level Transmitters, Non-Contact**

**SIRD70 Guided Wave Radar (GWR) Level Transmitters**

What is a Continuous Liquid Level Sensor?

Continuous level sensor definition

Continuous level sensors are transmitters that measure liquids within a specified range. Level sensors determine the exact amount of liquid that provides a continuous analog signal. The level signal can be displayed directly on site or integrated into a process control or management system. These products can be installed vertically and horizontally. They are ideal for monitoring liquids in confined or restricted areas.

Wikipedia: Level sensor

Difference between a point level sensor and a continuous level sensor?

Point level sensor

A sensor designed for point detection will detect liquid at a certain point in the tank or chamber. Generally, this applies to processes that require high-level or low-level management.

In most cases, they act as switches when the tank level rises or falls to a certain level. This could be an alarm or a bonding device. Essentially, the sensor detects when the liquid has reached the desired point, and it acts as a switch to activate the necessary response.

Continuous level sensor

The continuous level sensor is designed to detect the level through every point in the tank or chamber. This means that it provides feedback regardless of the level and the entire container range. This is great for processes where level is always important, and for applications that require increased accuracy.

Extended Reading: How to Measure Volume of Liquid

A point level sensor is a device that can detect the presence or absence of almost any liquid medium. Typically, these sensors are used in processes that need to detect high or low levels.

Generally, common applications requiring point sensors fall into two categories:
Leak detection – to prevent costly damage or service interruption to equipment or level measurement – to prevent spillage or dry conditions.

The technology works like a switch. When the level of a tank or container reaches or falls below a certain threshold. It drives an action.

A wide range of point level sensors are available for many applications and materials.

The float level sensor is a common point level sensor.
The float level switch consists of a fixed rod and a float.
The float has a built-in permanent magnet, which moves freely along the fixed rod with the rise and fall of the liquid level. The magnetic field of the permanent magnet acts on the reed switch, and the closer it is to the reed switch, the stronger the force. When the threshold is reached, the reed switch is closed.
The float level sensor has a robust structure and a measurement deviation of less than 1%.

For point level detection applications requiring no moving parts. Optical liquid level sensors are a good option.
Optical liquid level sensors are suitable for high, medium and low liquid level detection. and fits almost any installation. It has no moving parts, emits infrared light through LEDs, and calculates liquid level changes based on the amount of reflected light.
Optical level sensors are available in custom high temperature models and in different sizes to meet the needs of different applications.

Capacitive level sensors are suitable for reflective, viscous or viscous fluids. According to their principle, capacitive sensors enable non-invasive measurements. Internal level changes can be measured without drilling holes in the vessel under test.

Ultrasonic liquid level sensors work by emitting and measuring reflected high-frequency sound waves, which can withstand high pressure, high temperature and vibration. It is suitable for measuring liquids without foam and air bubbles. Ideal for applications in agriculture, mining, construction, printing, and specialty vehicles.

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

Continuous level sensor 4-20 ma

Sino-Inst provides signal output for all continuous level sensors. Analog signal output, 4-20mA output, 0-5V, RS485, HART optional.

Advantages of current signal (4 ~ 20mA signal)

The current signal is suitable for long-distance transmission. Because the current signal is not affected by the resistance of the wire. And the voltage signal will be divided when the wire itself has resistance, resulting in inaccurate measurement. Generally, the maximum transmission distance of 4 ~ 20mA is controlled within 100m, and it is recommended to use digital signals (485 communication)
The current signal generally uses a two-wire system, and the voltage signal generally uses a three-wire system. In contrast, the two-wire system saves materials and reduces costs than the three-wire system.
Compared with the on-site working conditions, the anti-interference ability of the current signal is stronger than the voltage signal. In the case of interference, it is recommended that the user select a 4 ~ 20mA signal.
The current signal can appropriately exceed the range of the range and output inaccurate signals. For example, a pressure transmitter with a range of 1MPa and an output of 4-20mA can output 24mA when it exceeds the range. The voltage signal is slightly different depending on the power supply. For example, a pressure transmitter with a range of 1 MPa and an output of 0 to 10 V cannot output signals above 9 V when the power supply is 9 V.
When the wire materials are not the same (such as copper, nickel), a magnetic field will generally be generated. And the voltage signal will have an error, and the current signal will not be required in the case of higher accuracy requirements.

Continuous Level Sensor can also be used with paperless recorder.

Measuring techniques for continuous level measurement

1. Ultrasonic Level Sensors

Ultrasonic Level Transmitters provide non-contact and maintenance-free level measurement, (Like the Radar ) for fluids, pastes, sludges and powdery to coarse bulk materials.

Ultrasonic level measurement, easy installation, wireless, portable and can be explosion-proof.Sonic is the sound we can hear. Ultrasonic is the sound above the human hearing range.

A human can hear maximum up to a frequency of 20 KHz. Ultrasonic frequencies are above 20 KHz. Ultrasonic waves are used to measure the level of liquids and solid objects in industries.

Ultrasonic level measurement is the contactless principle and most suitable for level measurements of hot, corrosive and boiling liquids.

The normal frequency range used for ultrasonic level measurements is within a range of 40-200 KHz.

Extended reading: Ultrasonic liquid level sensors

2. Hydrostatic (Pressure) Level Transmitters

Hydrostatic level transmitters, also called submersible level transmitter, or pressure level transmitters. For Hydrostatic level measurement, Continuous level measurement in liquid applications with pressure sensors. These transmitters help in determining fluid level of a container. By measuring the pressure of resting body of the fluid within it.

3. Continuous Level Radar Sensors

Radar level transmitter, also called Radar level gauge. Non-contact Continuous level measurement in liquids and solids with free space radar sensors.

Non-contacting radar, based on microwave technology, detects only surfaces that reflect energy. These transmitters work on the principle of radar by using radio wave emissions. Mounted at the top of a tank filled with a liquid.

The transmitter sends a radar signal into the liquid and receives a reflection of the signal. The transmitters then analyze the current fill level of the tank based on the time taken by the transmitted signal to return.

Extended reading: Radar Liquid Level Sensor|Corrosive, steam, volatile liquids

4. Guided Wave Radar Level Sensors

Guided Wave Radar (GWR) Level Transmitters, also called wave guided radar level transmitter. Using guided wave radar technology, GWR level transmittershave no moving parts. They can measure both level and the interface between two media.

Continuous level measurement in liquids and solids with guided wave radar sensors. These transmitters work by sending a microwave pulse through a sensor cable or rod. The signal hits the surface of the liquid, and travels back to the sensor, and then to the transmitter housing.

Based on the time taken by the signal to travel down the sensor and back up again. The electronics integrated in the transmitter housing determine the filling level.

Extended Reading: Silo/Bin material level measurement system

5. Capacitance level detectors

Capacitance level detectors, also known as Capacitance level transmitter. RF Capacitance Level Transmitter offers continuous and point level detection. In liquids and solids with capacitance probes.

These transmitters use liquid stored in a tank or container as a dielectric medium between two or more electrodes. The energy capacity of the capacitor circuit increases when there is more liquid, and decreases if there is less liquid. Measuring the variations in the capacitance value, capacitance level transmitters calculate level of the tank.

Read more about: Capacitive Level Measurement Principle.

6. Magnetostrictive level transmitter

Magnetostrictive level transmitter, in-tank liquid level transmitter, is a continuous magnetic level gauge. The magnetostrictive level sensor, measure the level of fluid in the vessel.

By detecting the level of the magnets contained within the float and then transmits the measurement back to the control system.

7. Magnetic Float level sensors

Magnetic Float level sensors are continuous level sensors featuring a magnetic float that rises and falls as liquid levels change.

The movement of the float creates a magnetic field that actuates a hermetically sealed reed switch located in the stem of the level sensor, triggering the switch to open or close.

Comparative analysis – 7 Tank Level Measurement Sensors

Magnetostrictive Level Sensor in Storage Tank Level Measurement

Applications

Continuous level sensors are versatile in monitoring liquid level needs. They can monitor water, diesel, lube oils and fuels, as well as various chemical and petrochemical liquids. And compatible with corrosive and non-corrosive substances.

Continuous level sensors are and used by industries including:

Food and Beverage
HVAC
Medical
Printing
Off-Highway Vehicles
Semiconductor
Oil and Gas
Agriculture
Wastewater Treatment
Concrete/Aggregate
Plastic/Vinyl
Marine
Chemical

Extended reading: Sludge Blanket Level Detector Appliactions

The Silo/Bin level measurement and control system solves the problem of frequent dumping accidents in the powder silo of the mixing station during the feeding process. It avoids the problems of dust flying, waste of cement, and environmental pollution. It reduces the equipment damage caused by the collapse of the dust removal hood of the mixing station Other issues and prevents the safety issues of the workers present.

Extended Reading: Silo/Bin material level measurement system

Generally, we can use radar level sensors, ultrasonic, or guided wave radar to measure.

**SI-FMF15 FMCW Radar High Temperature Level Sensor**

**SI-FMF21 FMCW Radar Silo Level Sensor**

**Alternative to VEGAPULS 64-80GHz FMCW Level Radar**

**SIRD-701 Guided Wave Radar Level Sensor**

**SIRD-702 GWR Corrosive Liquid Chemical Level Senso**

Tank level senor 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 commonly choices for tank level measurement. Liquid level sensors have been around for decades for leak detection or level measurement. Common measured medium are: Water, Fuel, Diesel, Gasoline, diesel, liquefied gas, liquid ammonia, etc.

Read more about: Level Senors for Tank Level Measurement

To measure the powder level, most of the radar level gauges and ultrasonics are used. Or heavy hammer level gauge.

High-frequency radar level gauge application: powdery solids, or environments with a lot of dust
① coal bunker, cement bunker, clinker bunker,
② Flour, corn flour, rice flour, sorghum flour, etc.
③Iron powder, aluminum powder, etc.

Ultrasonic level meter (ultrasonic level sensor) is used to measure the level of solid materials such as coal, ore, corn, wheat, glass, straw, garbage, wooden boards, automobiles, plastic particles, etc. It is used in metallurgy, mining, grain processing, storage, security and other industries.

Extended reading: Non Contact Liquid Level Sensor Working Principle

A laser level transmitter is also called a laser level meter. Industrial Accurate, non-contact, and uninterrupted real-time monitoring of material height. Designed for material level and liquid level. A laser level transmitter is a continuous or high-speed pulsed laser beam emitted by a semiconductor laser.

The laser beam meets the surface of the object to be measured and reflects. The light return is received by the laser receiver. And accurately record the time difference between laser emission and reception. In order to determine the distance from the laser radar to the measured object. Laser level transmitter is similar to radar/ultrasonic level sensor.

Read more about: Laser Level Transmitter

There are many types of liquid level sensors that can measure water. From our personal experience, hydrostatic submersible level sensors are the easiest to use and relatively low cost.

Extended reading: Hydrostatic Level Measurement

But,

Sometimes, due to the limitation of measurement conditions, it is necessary to select the external water tank level indicator.
Our Sino-inst external water tank level indicator is based on ultrasonic principle.
When measuring with External Tank Level Indicator, install the ultrasonic probe just below the outer wall (bottom) of the container under test. No need to cut holes, easy to install. Does not affect on-site production. It can realize accurate measurement of various toxic substances and various pure liquids in high temperature and high pressure airtight containers.

Read more about: External Tank Level Indicator

How to select a continuous level sensor?

Selection of level measurement sensor.

Issues to consider before selecting a level measurement sensor include:

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

Extended Reading: Laser level transmitter working principle

Frequently
Asked
Questions

In continuous level measurement, the level of a medium in a tank or silo is detected with the help of different measuring methods and converted into an electronic signal.

Continuous level sensors are more complex, allowing level monitoring of the entire system. They measure the level of the liquid level in a range, not the level of a point, and therefore produce an analog output that is directly related to the liquid level in the container. To build a level measurement system, this output signal is transmitted to the process control loop and visual indicators.

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.

Level Transmitters

The point level measurement sensor is used to indicate a single discrete level, that is, to indicate a preset level. Normally, the function of this type of sensor is the upper limit alarm, which indicates the overfill condition, or the lower limit alarm condition.

What are the common types of oil level sensors?

Magnetic float sensor: Developed according to the principle of buoyancy and magnetic coupling, with good visibility of characteristics and direct reading of values;
Pressure sensor: Use liquid pressure to measure liquid depth, suitable for measuring water depth in river channels;
Capacitive sensor: Utilize the principle that the capacitance formed between the probe and the container changes linearly with the liquid (material) level. There is no moving or elastic component. Impact resistance, easy installation, high accuracy, high reliability;
Magnetostrictive sensor: The principle of the sensor is to generate a longitudinal magnetic field through a permanent magnet and another magnetic field through an electric current. When the two magnetic fields intersect the waveguide, the waveguide generates a “magnetostrictive” phenomenon, and a strain pulse is generated instantly. Features It is fast and accurate. It is mostly used for liquid measurement in tank trucks;
Float sensor (reed switch): It is more common. Nowadays, the automatic oil level sensors of automobiles belong to this category. The working principle is to use the buoyancy of liquid on magnetic floating ball, and the dry spring of floating ball level gauge is magnetically attracted to change the liquid level position into an electrical signal. The reed switch is connected in sections, and the length of each section is the test accuracy of the level gauge.

The working principle of the oil level sensor device is through the continuous acquisition of the relative percentage signal of the oil level sensor. With the calibration algorithm, it is converted into the corresponding volume information. The fuel quantity of the fuel tank is monitored. Combined with the GPS system, the vehicle is known Driving status.

Point-level switches are used as high-level and spill-prevention alarms, low-level and pump-protection alarms, and to turn pumps on and off. Continuous level (proportional) measurement, on the other hand, indicates the level in a vessel over the full span of measurement.

Point level measurement is different from Continuous Level Measurement. Used to detect material levels in tanks or silos.

There are high levels (with material) and low levels (without material).

High level measurement allows containers to be filled to full capacity while preventing overflow situations.

Low level measurement alerts facilities to the need for replenishment, preventing process and/or plant downtime.

Technical Support

Water Level Transducers – Detailed Guide
What Is a Water Level Transducer? Water level transducers are also called Water Level Sensors, or water level transmitters. Water level transducers are used to monitor water usage and quality…
Explosion Proof Ultrasonic Level Sensor| Hazardous Area-Non Contact
Explosion proof ultrasonic level sensor is a non-contact, easy to install and maintain liquid level measurement instrument. It is used to measure flammable and explosive liquids such as diesel oil…
External Tank Level Indicator
External Mounted Tank Level Sensors External Tank Level Indicator refers to an externally mounted level sensor. It is used to install on the outside of the liquid storage tank to…
New Trend of Transformer Oil Level Indicator
What is Transformer Oil Level Indicator? The Transformer oil level indicator is specially designed to measure and indicate the oil level in transformer tanks, oil conservators and on-load tap-changers. Transformer…
Material Level Indicators
The material level indicator refers to an instrument for real-time detection of changes in the height of solid materials in a container. Material level indicator is also known as material…
80GHZ Radar Level Transmitter
80 GHz Radar Level Measurement 80GHZ Radar Level Transmitter refers to a frequency modulated continuous wave (FMCW) radar product operating at 76-81GHz. It can be used for level measurement of…
The Secret of Water Level Control
Water level control refers to the control of high and low water levels by mechanical or electronic methods. It can control solenoid valves, water pumps, etc. to become an automatic…
Choose the Right Float Switch for Water Tank
Float Switch for Water Tank is a switch that can adjust the liquid level status of water tanks, buckets, pools and other fields. It can also be used to control…
A New Choice for Boiler Drum Level Measurement – Guided Wave Radar
Boiler Drum Level Measurement is very important and necessary in major factories. Drum level is an extremely important control parameter. It is an important guarantee for the production of high-quality…
Tech Guide for Non-Contact Radar Type Level Transmitters
What Is Radar Type Level Transmitter? The Radar Type Level Transmitter is a kind of instrument that measures the liquid level in the container by microwave. The Radar Type Level…
Wastewater Level Sensor for Septic Tank-Sewage Holding Tank
Wastewater level sensor occupies a large proportion in sewage treatment applications. It is used in almost all aspects of sewage treatment. In sewage treatment, the level of waste water, sludge,…
Water Level Monitoring Sensor/System for Sewage-Wastewater
Water Level Monitoring Sensors can be used to detect changes in water level. The Water Level Monitoring Sensor and other control equipment work together to form the Water Level Monitoring…
Tank Level Gauges & Indicators
Tank level gauges are instruments used to indicate and control the height of the liquid level in the tank. Commonly used in water storage tanks, oil storage tanks, and underground…
Magnetic Level Gauge/Indicator
What is a magnetic type level gauge? A magnetic Level Gauge is also called a magnetic level indicator. Magnetic Level Gauge is developed based on the principle of buoyancy and…
List of Radar Level Sensors
Non-contact radar level sensor Radar level sensors are used for continuous non-contact level measurement of liquids or solids. And convert it into electrical signals. The radar level sensor emits high-frequency…
Point Level Measurement Sensors
What is Point Level Measurement? Point Level Measurement refers to the use of a point level sensor to detect the material level in a storage tank or silo. Also called…

Sino-Inst offers over 40 Continuous Level Measurement Sensors. About 50% of these are liquid level meters, 40% is the tank level sensor.
A wide variety of Continuous Level Measurement Sensors options are available to you, such as free samples, paid samples.
Sino-Inst is a globally recognized supplier and manufacturer of Continuous Level Measurement Sensors instrumentation, located in China.

Request a Quote

Please enable JavaScript in your browser to submit the form

Turbine type Flow Meter

Posted on December 9, 2019 by KimGuo11

Turbine type flow meter is a Volume flowmeter. Turbine flow meters use the mechanical energy of the liquid or gas to rotate a rotor in the flow stream. The rotational speed of the rotor is proportional to the velocity of the fluid. In multiple industries, Turbine meters are used to measure the velocity of a variety of liquids, gases and vapors.

Turbine flow meter is the most popular equipment to measure flow electronically. Offer a wide flow and application rangeability. Turbine Flow Meters are easy to maintain, durable and versatile.

Choose a flow meter

What is a turbine flow meter?

A turbine flowmeter is a flowmeter that uses a turbine for measurement. It first converts the flow rate to the speed of the turbine. And then converts the speed into an electrical signal that is proportional to the flow. Turbine flow meter is used to detect the instantaneous flow and the total accumulated flow. And its output signal is frequency, which is easy to digitize.

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.

Turbine flow meter principle

Turbine meters are simple to operate and maintain. Turbine type flow meter is a reliable, cost-effective method for accurate flow measurement. Turbine flow meters are designed to maximize throughout and minimize pressure drop. Turbine meters can maintain high flow rates over an extended flow range and offer pulse output linear to the flow rate. The turbine meters also minimize fluid measurement uncertainty. By delivering high-frequency pulse resolution to account for minute increments of the flow rate.

A turbine flow meter is constructed with rotor and blades. Turbine meters use the mechanical energy of the fluid to rotate the rotor in the flow stream. The turbine, installed in the fluid pipeline, is supported by bearings at both ends. When the fluid passes through the turbine, the fluid impacts the turbine blades and drives the turbine blades to rotate. The sensor of the turbine flowmeter measures the flow rate through the angular velocity of the turbine blades. The method used by the turbine flowmeter is that the angular velocity of the blade is proportional to the fluid velocity.

Turbine flow meter’s angular velocity is detected by a sensing coil mounted on the casing. Turbine blades cut magnetic field lines generated by permanent magnetic steel in the casing. Changes in the magnetic flux of the sensing coil. The sensing coil sends the detected periodic change signal of the magnetic flux to the amplifier of the measuring instrument. The amplifier amplifies and shapes the signal.At the same time, the pulse signal is sent to the frequency current conversion circuit. Convert the pulse signal into an analog current amount, which then indicates the instant Flow value.

Extended reading: Turbine Flow Meter Specification

A flow transmitter processes the pulse signal to determine the flow of the fluid. Flow transmitter and sensing systems are available to sense flow in both the forward and reverse flow directions.

Turbine flow meter Equation

In a certain flow range, the pulse frequency f is proportional to the instantaneous flow rate Q of the fluid flowing through the sensor.

The flow equation is:

Q = 3600 × f / k

In the formula:

f——pulse frequency [Hz];

k——meter coefficient [1 / m] of the sensor, given by the checklist. If [1 / L] is the unit

Q = 3.6 × f / kQ——the instantaneous flow of the fluid (in the working state) [m3 / h];

3600-conversion factor.

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

Extended reading: Quantitative control with turbine flowmeter

What is K factor in turbine flow meter?

The turbine meter measures volumetric flow, however the pulses produced vary depending on the meter. The variation is accounted for by a K-factor. The K-factor is the number of pulses per unit volume.

Simply stated a K-factor is a dividing factor. The term is usually encountered. When dealing with pulse signals although analog K-factors are sometimes used.

How do you calculate K factor for a turbine flow meter?

The frequency of the output pulse is proportional to the flow through the flowmeter, and its proportionality factor K is:

K = f / qv

Where:

f–the output pulse frequency of the turbine flowmeter;

qv–flow through the flowmeter.

This proportionality factor K is also called the meter factor of the turbine flowmeter.

Gas turbine flow meter

Gas Turbine Flow Meter, is the flange type turbine flow meter. Turbine flow meter is the most popular equipment to measure flow electronically. They offer a wide flow and application rangeability.

Sino-Instrument’s GAS Turbine Flow Meter, is perfect choice for natural gas flow rate measurement. Turbine flow meters are suitable for gas and liquid measurement. They offer a wide flow and application rangeability. Turbine Flow Meters are easy to installation, maintain, durable and versatile.

Turbine water flow meter

Liquid Turbine Flow, is the turbine flow meter that suitable for liquid flow rate measurement. Like water flow, Diesel flow. Turbine flow meter is the most popular equipment to measure flow electronically. They offer a wide flow and application rangeability. Turbine Flow Meters are easy to maintain, durable and versatile.

Full bore turbine flow meters are suitable for hot and cold water applications. The impeller which is of modern design, rotates on stainless spindles mounted in the measuring chamber. The impeller is made of self-cleaning synthetic resin. The helix aligns with the pipe axis. The complete metering unit is easily removable from the meter body. And is designed to ensure high flow-rate with the smallest headloss. Versions for warm water up to 90Â°C and telemetering (complete with a pulse output) are also available.

Low flow turbine flow meter

The small Diameter (small flow) liquid turbine flow meter, is a precision flow measuring instrument,that can be used to measure the flow and total volume of liquids. The structure is explosion-proof and can show the total flow, instantaneous flow and percentage of flow fullness. It is widely used in measurement and control systems in petroleum, chemical, metallurgical, scientific research and other fields. Sensors equipped with sanitary fittings can be used in the pharmaceutical industry.

Turbine flow meter price

Sino-Inst is a Turbine flow meter manufacturer, China. Sino-Inst offers over 10 turbine flow meter products. A wide variety of turbine flow meter options are available to you, such as free samples, paid samples. The price of turbine flow meters are decided by flollowing factors:

Pipe diameter;
Flow range;
Measured medium;
Whether it is corrosive;
Whether explosion protection is required;
Whether it needs local display;
Connection method;
Measure pressure;
Measure temperature;
Signal output;
Accuracy requirements;
Material requirements;

For example, Model DN15 Turbine flow meter’s price is around USD 140.00/pc.

More about: Best Price Turbine Flow Meters From Reliable Manufacturer

Electromagnetic flow meter

A Magnetic flow meter, also called electromagnetic flow meter, mag flow meter, or magmeters. A magnetic flow meter is a volumetric flow meter that works with principle of magnetic technology. Magnetic flow meters do not have any moving parts. An electromagnetic flowmeter consists of two parts: Electrode (sensor) and Transmitter. Installation types of magmeters could be: Compact, remote, insertion.

Magnetic flow meter is ideal for wastewater applications or any dirty liquid which is conductive or water based. Magnetic flow meters are also ideal for applications where low-pressure drop and low maintenance required. A range of liner materials, electrode options, and line sizes accommodate a wide variety of process application.

Extended reading: Industrial Magmeters

How does an electromagnetic flow meter work?

Magnetic flow meters use a magnetic field to generate and channel liquid flow through a pipe.
A voltage signal is created, when a conductive liquid flows through the flowmeter’s magnetic field.
The faster the flow of the fluid, the greater the voltage signal generated.
Electrode sensors located on the flow tube walls pick up the voltage signal. And send it to the electronic transmitter, which processes the signal to determine liquid flow.

More about Magnetic flow meter.

What is Flow Transmitter working principle?

Flow Metering Principles

From the measurement principle, the flowmeter can be divided into Volumetric flowmeters and Mass flwo meters.

VOLUMETRIC FLOWMETERS:

Differential Head type
- Orifice plates
- Venturi meters
- Annubar
Differential Area type (Rotameters)
Electromagnetic flowmeters
Ultrasonic flowmeters
Turbine flowmeters
Vortex flowmeters
Positive Displacement Meters

MASS FLOWMETERS:

Coriolis Mass flowmeter
Thermal Mass flowmeters

For different working principle, We offer different types of flow meters, like:

How does a pulse flow meter work?

The frequency signal is converted into a digital signal for display. This is called a pulse flow meter. The pulse is the output signal of the flow meter. It is a pulse output. Now the standard output of most flow meters is 4-20MA, which can also be made into a pulse output.

Turbine flowmeters use the mechanical energy of the fluid to rotate a “pinwheel” (rotor) in the flow stream. Blades on the rotor are angled to transform energy from the flow stream into rotational energy. The rotor shaft spins on bearings. When the fluid moves faster, the rotor spins proportionally faster. Turbine flowmeters now constitute 7% of the world market.

Shaft rotation can be sensed mechanically or by detecting the movement of the blades. Blade movement is often detected magnetically, with each blade or embedded piece of metal generating a pulse. Turbine flowmeter sensors are typically located external to the flowing stream to avoid material of construction constraints that would result if wetted sensors were used. When the fluid moves faster, more pulses are generated. The transmitter processes the pulse signal to determine the flow of the fluid. Transmitters and sensing systems are available to sense flow in both the forward and reverse flow directions.

Where are flow meters used?

Where are flow meters used? Or, What does a flow meter measure?

At industrial sites, meters that measure fluid flow are referred to as flow meters or flow sensors.

It is one of the most important instruments in industrial measurement.

With the development of industry, the accuracy and range of flow measurement requirements are getting higher and higher.

In order to adapt to various purposes, various types of flowmeters have been successively launched,

widely used in oil and gas, petrochemical, water treatment, food and beverage.

Industries such as pharmaceuticals, energy, metallurgy, pulp and paper, and building materials.

Measurement of gas mass flow in industrial pipelines
Smoke flow rate measurement from the chimney
Calciner flue gas flow measurement
Air flow measurement during gas process
Compressed air flow measurement
Gas flow measurement during semiconductor chip manufacturing process
Gas flow measurement in sewage treatment
Gas flow measurement in heating ventilation and air conditioning systems
Flux recovery system gas flow measurement
Measurement of combustion gas flow in a combustion boiler
Gas flow measurement of natural gas, flare gas, hydrogen, etc.
Measurement of carbon dioxide gas flow during beer production
Measurement of gas mass flow in the production process of cement, cigarette and glass factory
Open channel

Sino-Instrument offers over 50 flow meter for flow measurement.

About 50% of these are differential pressure flow meters, 40% is the liquid flow sensor, and 20% are Ultrasonic Level Transmitter and mass flow meter.

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

Sino-Instrument is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.

Request a Quote

Please enable JavaScript in your browser to submit the form

Get a Quote More Flowmeters

Electronic Flow Meters

Posted on November 23, 2019 by KimGuo11

Electronic flow meters are industrial digital flow meters for fluid flow rate measurement. In more cases, people will default that Electronic flow meters are electromagnetic flowmeters.

Electronic flow meters types like Magnetic, Vortex, and Ultrasonic flow meters. Electronic flow meters are suitable for Industrial liquid, water, natural gas, petrol, fuel, air, and more fluid flow. Electronic flow meters convert the monitored fluid flow into electronic signals. Including pulse signal, 4-20mA standard signal, etc.

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

Sino-Inst, the manufacturer of Electronic flow meters. We will answer your various questions about Electronic flow meters.

What is electronic flow meter?

A flow meter is a device used to measure the volume or mass of a gas or liquid. Flow meters are referred to by many names, such as flow gauge, flow indicator, liquid meter, flow rate sensor, flow rate meter, etc. depending on the particular industry.

Electronic flow meters are industrial digital flow meters for fluid flow rate measurement. Electronic flowmeters types like Magnetic, Vortex, and Ultrasonic flow meters.

While magnetic, vortex, and ultrasonic–are neither exclusively nor exhaustively electronic in nature. They do represent a logical grouping of flow measurement technologies.

All electronic flow meters have no moving parts, are non-intrusive, and are made by electronics technology.

Magnetic flowmeters are the most directly electrical in nature, deriving their first principles of operation from Faraday’s law. Vortex meters depend on piezoelectric sensors to detect vortices shed from a stationary shedder bar. And today’s ultrasonic flowmeters owe their successful application to sophisticated digital signal processing.

Featured Electronic Flow Meters

Electronic flow meter working principle

Simply put, the working principle of Electronic Flow Meters is to convert the flow rate of the measured fluid into an electronic signal through the flow sensor component. And can carry out flow rate display and signal output. For example, display instantaneous flow rate, cumulative flow, etc.

As you can see. There are many types of Electronic Flow Meters. Therefore, their accurate measurement principles are different.

Magnetic flow meters use a magnetic field to generate and channel liquid flow through a pipe.

A voltage signal is created, when a conductive liquid flows through the flowmeter’s magnetic field.

The faster the flow of the fluid, the greater the voltage signal generated.

Electrode sensors located on the flow tube walls pick up the voltage signal, and send it to the electronic transmitter, which processes the signal to determine liquid flow.

Let see the video about:

How to Measure Flow with Magnets – (Magnetic Flow Meters)

Video source: https://youtu.be/TR0baWuB6v4

Faraday’s Law

The operation of a magnetic flow meter or mag meter is based upon Faraday’s Law, which states that the voltage is induced across any conductor. As it moves at right angles through a magnetic field, is proportional to the velocity of that conductor.

Faraday’s Formula

E =V x B x D

E = The voltage generated in a conductor

V = The velocity of the conductor

B = The magnetic field strength

D = The length of the conductor

To apply this principle to flow measurement with a magnetic flow meter, it is necessary first to state that the fluid being measured, must be electrically conductive for the Faraday principle to apply.

As applied to the design of magnetic flow meters, Faraday’s Law indicates that signal voltage (E), is dependent on the average liquid velocity (V) the magnetic field strength (B). And the length of the conductor (D) (which in this instance is the distance between the electrodes).

In the case of wafer-style magnetic flow meters, a magnetic field is established throughout the entire cross-section of the flow tube.

If this magnetic field is considered as the measuring element of the magnetic flow meter, it can be seen that the measuring element is exposed to the hydraulic conditions, throughout the entire cross-section of the flow meter.

With insertion-style flow meters, the magnetic field radiates outward from the inserted probe.

Extended reading: Industrial Magmeters

Advantages of using Electromagnetic Flow Meters.

High precision and stability
Self-check
Two-way measurement
No pressure loss
No moving parts
May be for sanitary purposes
Large size available
Dirty liquid and mixed fructose are ok

Disadvantages of using Magnetic Flow Meters

Can not be used to measure gas, steam and liquids containing a lot of gas;
Cannot be used to measure liquid media with very low conductivity. The electromagnetic flowmeter cannot measure petroleum products or organic solvents and other media;
Cannot be used to measure high temperature media. At present, it is restricted by the lining material and electrical insulation material of the measuring tube of the electromagnetic flowmeter for general industry;
The electromagnetic flowmeter is easily affected by external electromagnetic interference.

Extended Reading: Petroleum Flow Meter

A vortex flow meter is a flow measurement device best suited for flow measurements, where the introduction of moving parts presents problems.

They are available in industrial grade, brass, or all-plastic construction. Sensitivity to variations in the process conditions is low, and no moving parts have relatively low wear compared to other types of flow meters.

Vortex flowmeters operate under the vortex shedding principle, where oscillating vortexes occur when a fluid such as water flow past a bluff (as opposed to a streamlined) body.

The frequency that the vortexes are shed depends on the size and shape of the body. It is ideal for applications where low maintenance costs are important.

Industrial size vortex meters are custom built and require appropriate sizing for specific applications.

The Vortex Shedding flow meter detects the vortices, that are created by a process medium going past a bluff body.

The frequency of these vortices can be equated to flow velocity, which, in turn, is used to calculate the volumetric flow rate.

The integral temperature sensor is used in saturated steam service, to determine the operating conditions and specific volume of the steam being measured.

The steam table incorporated into the electronics then calculates the flow of energy of the stream flowing through the meter.

The optional pressure sensor can be used for similar calculations, for gasses and superheated steam. Intelligent Signal Processing (ISP) provides stable readings, free of external influences.

Why Generally Choose 4-20ma Output?

Ultrasonic flowmeters use sound waves to determine the velocity of a fluid flowing in a pipe.

At no flow conditions, the frequencies of an ultrasonic wave transmitted into a pipe, and its reflections from the fluid are the same.

Under flowing conditions, the frequency of the reflected wave is different, due to the Doppler effect.

When the fluid moves faster, the frequency shift increases linearly. The transmitter processes signals from the transmitted wave, and its reflections to determine the flow rate.

Generally, an ultrasonic flow meter is a device, that uses ultrasound to measure the velocity of liquid flow. That helps in determining the volume of liquid flow also.

The ultrasonic flow meters are made using ultrasonic transducers, which are clamped to the external surface of a pipe, to generate the ultrasonic pulses through the pipe.

When the liquid flows inside the pipe, it creates the time difference in the pulses, and these are examined to calculate the accurate flow velocity of the liquid.

There are many advantages of using the ULTRASONIC flow meters which include:

The electronics in the ultrasonic flow meter includes ultrasonic flowmeter detector which compensates and adapts to the changes in the profile of the flow, type of the liquid and material of the pipe.
A portable ultrasonic flow meter converter can be used as a direct method to determine the flow rates effectively when compared to the other flow systems.
Ultrasonic flow meter converter is inexpensive to use and maintain when compared to the other mechanical flow meters as they are no moving parts in these flow meters.
Their design is highly sophisticated and they do not obstruct the liquid flow, so they can be used for sanitary, corrosive and abrasive liquids.

These are the advantages of the ultrasonic flow meters and there are many disadvantages of the Ultrasonic flow meter which include:

The main disadvantage of the ultrasonic flow meter is the cost. The cost of the flow meter is very high when compared to the other types of mechanical flow meters.
The ultrasonic flow meters are sophisticated when compared to the mechanical flow meters, so it needs experts to repair and maintain the flow meters.

These are the advantages and disadvantages of ultrasonic flow meters.

Fuel flow meters, also known as turbine flow meters, are the main types of speed flow meters. A freely rotatable impeller is installed in the fluid-flowing pipe. When the fluid passes, its motion can make the impeller rotate. The larger the fluid flow rate, the larger the kinetic energy, and the higher the impeller speed.

The fluid flow can be determined by measuring the number of revolutions or the number of revolutions of the impeller.

Extended Reading: Fuel Flow Meters for Diesel-Marine fuel-Industrial oil

Perhaps you are not clear about the principle of Electronic Flow Meters. Don’t want to know more about it. Just want to find the applicable Electronic Flow Meters. Then you can start from your measuring medium.

Electronic flow meter for water

A Digital Water flow meter is a flow meter that can display the water flow rate, and have the output for the flow rate. Like 4-20mA output, HART, RS 485, and so on. Digital Water Flow Meter is also called Electronic Water Flow Meter. Digital Water Flow Meter is widely used in industrial water and household water measurement. Most of the Sino-Inst flow meters are digital water flow meters. Like the electromagnetic flowmeter, Portable ultrasonic flow meter, Turbine flow meter…..

Electronic flow meter for air

Digital gas flow meters are flow meters used to monitor the gas flow rate or mass. Digital gas flow meters are designed to measure different types of gases. Like Air, N2, O2, CO2, and more.

Digital gas flow meters can measure the flow of a wide variety of gases. According to measurement principles, there can be positive displacement gas flow meters, velocity gas flow meters, and mass gas flow meters. How to choose the right Digital gas flow meters? We will discuss in detail next.

Read more Digital gas flow meters for Sale

Electronic flow meter for oil

**Extended reading: Featured Hydraulic Flow Meters For Sale**

Industrial oil flow meters measure the volume or mass of oil. Can realize the mutual conversion of volume and mass.

The main industrial oils are hydraulic oil. Gear Oil. Turbine oil. Compressor oil. Refrigeration oil. Transformer oil. Cylinder oil, heat treatment oil, heat transfer oil, etc. Of course, edible oil can also be produced in the industry. In addition, there are greases with lubricating oil as base oil and thickening agent.

Therefore, whether it is a company that uses, trades, or produces oil, it needs to accurately measure the oil flow.

There are many common oil flow meters, such as turbine flow meters, positive displacement flow meters, gear flow meters, mass flow meters, etc.

Then, we need to choose a suitable flow meter that meets the measurement and budget according to different working conditions.

What are the different types of flow meters?

Flowmeter types: Generally speaking, we will classify flow meters according to their working principles.

Flow Metering Principals

Differential Pressure Flowmeters
Velocity Flowmeters
Positive Displacement Flowmeters
Mass Flowmeters
For Open Channel Flowmeters – weirs, flumes, submerged orifices, current meters, acoustic flow meters and more

For different working principles, We offer different types of flow meters, like:

Differential Pressure Flow Meters
Orifice Plate
Venturi Tube
Flow Nozzles
The Sonic Nozzle – Critical (Choked) Flow Nozzle
Calorimetric Flowmeter
Ultrasonic Doppler Flowmeter
Positive Displacement Flowmeter
Variable Area Flowmeter or Rotameter
Velocity Flowmeters
Pitot Tubes
Electromagnetic Flowmeter
Turbine Flowmeter
Vortex Flow Meter
Thermal Flowmeter
Coriolis Flowmeter
Mass Flowmeters
Open Channel Flowmeters

Extended reading: Gas Rotameter Tips

How to choose your flowmeters?

Important factors when selecting flow metering devices are:

Measured medium
Accuracy
Cost
Flow rate range
Pperating requirements
Maintenance
Lifetime
Lead time

These factors are more or less related to each other. For example – the cost of flow meters increases with accuracy and lifetime quality. Read more about: What Is GPM In Flow Meter?

More about Electronic Flow Measurement Technology

Sino-Inst offers over 50 Electronic flow meters for flow measurement. About 50% of these are differential pressure flow meters, 40% is the liquid flow sensor, and 20% are Ultrasonic Level Transmitter and mass flow meters.

A wide variety of Electronic flow meters options are available to you, such as free samples, paid samples. Sino-Inst is a globally recognized supplier and manufacturer of flow measurement instrumentation, located in China.

Request a Quote

Please enable JavaScript in your browser to submit the form

In line Flow Meters

Posted on November 10, 2019 by KimGuo11

What is an inline flow meter?

In line flow meter is a flow meter with the function of displaying flow rate on-site. The sensor of the flow meter is installed on the fluid pipe. Digital display or pointer shows the flow rate on the spot.

In-line flowmeters could be digital and mechanical flow meters. Common in-line flowmeters include turbine flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. With stainless steel material, analog, and 4-20mA output, in-line flow meters can measure and control inline flow.

Features of In-line Flow Meters

Local LCD display flow rate.
Signal output: analog, 4-20mA, pulse, and so on.
Liquid, Gas pipe flow measurement.
Special materials can be selected depending on the working conditions.
Such as PTFE
Remote type is available.

After understanding what an Inline flow meter is, you may want to know which flow meter is the most suitable?

Choose the most suitable Inline flow meter

Different measurement situations require different inline flowmeters.

Simply put, we can consider the following aspects：

Installation form
Fluid medium
Measuring principle
Application

More flow meters

In line flow meter

In line flow meter is currently the mainstream measuring instrument in flow measurement.

In line flow meter is an in-situ display flow meter, also called integrated flow meter. The display head and sensor are integrated.

At present, all integrated flow meters belong to the In line flow meter. They all have in-situ display function. For example, the split-type flow meter does not have the in-situ display function, and its meter and sensor are connected by conduction.

What are the advantages of in line flow meter in the flow measurement process?

In some measurements with a control system, the advantage of In line flow meter is not great. Because the flow can be monitored through the PLC system.

In working conditions without a PLC system, In line flow meter can show its advantages. It can display cumulative flow and instantaneous flow online.

Remote flowmeter

Remote flowmeter is also called split flowmeter. Compared with the online flowmeter, the remote flowmeter means that the sensor and the display are installed separately.

For example, the flow sensor is installed in the underground water pipe, but for the convenience of viewing the data, the display is installed on the ground. The sensor and the display can be connected via a signal cable.

Extended reading: Totalizing flow meter water

Insertion flow meter

What is an insertion flow meter? An insertion flow meter is a flow meter installed in insertion mode. Make a small hole in the pipe under test, and then insert the probe part of the flowmeter into the pipe. easy installation. It is suitable for measuring the flow of large-diameter pipelines.

The insertion flow meter that has been promoted and used has various forms. According to the working principle of the insertion flow meter detection head, it can be divided into insertion turbine, insertion vortex, insertion electromagnetic, uniform velocity tube and thermal flow meter, etc.

Extended reading: Ultrasonic Insertion Flow Meter for Lined/Large Pipes

Clamp-on flow meter

Clamp-on flow meter only needs to paste the external clamp sensor on the surface of the pipe to complete the flow measurement of various liquids.

Currently, the Clamp-on flow meter is only an ultrasonic flow sensor. It does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation.

Extended Reading: Inline Ultrasonic Flow Meter

Inline water flow meter

Commonly used inline flow meters to measure water flow include electromagnetic, ultrasonic, turbine, etc.

Digital water flow meters|Water flow meter types

What is a fuel flow meter? The fuel flow meter is an instrument that can monitor fuel flow. Industrial Fuel is an important energy source. For example, diesel, marine fuel, gasoline, etc.

**Extended reading: What Is Hydraulic Flow Meter?**

Sino-Inst offers Turbine, Mass flow, Oval gear, V-cone, Target, and Orifice flow meters for inline hydraulic oil flow. Features like: bidirectional, high pressure, analog, can be customized as customer need.

Digital gas flow meters are flow meters used to monitor the gas flow rate or mass. Digital gas flow meters are designed to measure different types of gases. Like Air, N2, O2, CO2, and more.

The compressed air flow meter is an upgraded and improved gas vortex flow meter. The Karman vortex airflow sensor is researched and produced according to the Karman vortex principle.

In line Magnetic Flow Meters

Sino-Inst is one of the reliable Magnetic flow meter manufacturers and suppliers in China. Magnetic flow meters apply for wastewater flow rate measurement.

Sino-Inst can offer stainless steel magnetic flow meters, both the Pipeline and plug-in style. Of course, Sino-Inst can offer you with the mass flow meters and other flow meters. Read More

In line Ultrasonic Flow Meters

Ultrasonic flow meters, using the ultrasonic principle, measure the velocity of flow. We can use a different type of ultrasonic flow meters, like Portable ultrasonic flow meter, Handheld ultrasonic flow meter, Clamp-on Ultrasonic Gas Flow Meter. For airflow, natural gas, Read More

Extended reading: Flow Measurement of Nitrogen

In line Turbine Flow Meters

Turbine flow meters are flow sensors work for the inline liquids. Turbine flow meters are cost-effective and offer reliable, measurement with minimal flow meter maintenance required. Turbine flow meters measure the velocity of liquids, gases, and vapors in pipes, such Read More

Inline flow meters are mainly used for industrial pipeline fluid measurement. It can also be used for residential water pipes.

Residential inline water flow meter

Ultrasonic water meter is a new small residential water meter. Residential ultrasonic water meters are equipped with line water meters, and wireless water meters can be customized.

T3-1-2-H residential ultrasonic water meter adopts ultrasonic time difference measurement technology. A highly integrated, developed according to ISO4064-1:2005, GB/T778.1-2007, and other standards. A new generation of fully digital water meters with the advantages of high turndown ratio, ultra-low starting flow, and rich communication methods. IP68 protection level.

Industrial Inline flow meters have a wide range of applications. Need to select the appropriate type according to the measurement medium.

For example, in the food industry, hygienic electromagnetic flowmeters can be used to measure beer and milk. Or sanitary turbine flowmeter.

In the wastewater treatment industry, for example, electromagnetic flowmeters can be used to measure corrosive wastewater.

Frequently
Asked
Questions

If you let me answer this question. I would like to divide flow meters into two categories: mass flow meters and volumetric flow meters.

Of course, it can also be divided according to the measurement medium. There are two types of flow meters for measuring gas and measuring liquid.

Perhaps, we can also divide into closed pipeline measurement and open channel measurement according to the situation of the pipeline.

Finally, we may also be able to divide into contact and non-contact measurements according to the contact situation of the medium.

If you want to divide the flow meter into three categories. I think it can be divided into volumetric flowmeters, mass flowmeters, and velocity flowmeters.

Extended Reading: Petroleum Flow Meter

There are differences in the allowable error of the measurement accuracy of the commonly used flowmeters, as follows.

Mass flow meter 0.05%;
Positive displacement flowmeter 0.25～0.5;
Electromagnetic flowmeter 0.25～1.0;
Turbine flowmeter 0.15～0.5;
Vortex flowmeter 0.15;
Ultrasonic flowmeter 0.10 (multi-channel is better than 0.5);
Orifice plate, micro cone, uniform velocity tube flowmeter 1 to 1.5, nozzle 0.10.

Relatively speaking, mass flow meters have the highest accuracy.

Both the accuracy and error of a flowmeter characterize the ability of a measuring instrument to approximate the actual true value of the measurement results. The higher the accuracy of the instrument, the closer the measured value is to the actual true value. The higher the accuracy, the smaller the error.

Many people feel that the flow meter (flow meter) is the same as the water meter to measure water, but it has the essence but different. However, a water meter is a type of flow meter (flow meter). Let’s talk about the difference between the two of them.

The flow meter (flow meter) can measure the instantaneous flow, and can understand the usage of each site. The water meter mainly has the accumulation function, and the instantaneous flow Q cannot be seen.

A water meter is also a type of flowmeter. It is a volumetric measurement with an accumulation function. The household water meter is a small flow measurement flow meter. It is not resistant to high pressure and high temperature, and cannot output linear signals. Unable to participate in the automation control of modern industry. Basically only metering water, certainly not for metering gas. Some liquid media also cannot be applied.

To put it simply, water meters are generally only used to measure water and have a wide range. Flow meters can measure liquids, gases, vapors, or two-phase.

The installation positions of different flowmeters have different requirements for straight pipe sections.

Liquid flow meters are generally better installed at low places. Because this can make the part of the liquid passing through the flow meter reach the state of full pipe.

Gas flow meters are generally installed high in the pipeline.

And almost all flow meters require a certain length of straight pipe. Different flow meters require different straight pipe lengths.

If there is anything you want to know, please contact us.

The general measurement is to use an electromagnetic flowmeter.

Magnetic flowmeters use the principle of Faraday’s Law of Electromagnetic Induction to measure the flow rate of liquid in a pipe. In the magnetic flowmeter pipe parts, a magnetic field is generated and channeled into the liquid flowing through the pipe.

As fluid flows through the magnetic field, conductive particles in the fluid create changes. This variation is used to measure and calculate the velocity of water flow through the pipe. When the fluid moves faster, more voltage is generated. The electronic transmitter processes the voltage signal to determine the liquid flow.

Read more about Digital Water Flow Meters

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.

Read more about: Natural Gas Flow Meter Types

Extended reading: Cryogenic Flow Meters | Liquid Nitrogen-Liquid Oxygen

Sino-Inst offers broad flow control and measurement portfolios in the industry. Sino-Instrument provides technology to measure and control whatever moves through a pipe or pipeline. Including water, air, steam, oil, other liquids and gases.

Customers can rely on Sino-Inst for application specific solutions, that deliver accurate, timely and dependable flow data and control essential,for product quality, cost control, safer operations, and regulatory compliance.

Request a Quote

Please enable JavaScript in your browser to submit the form

What is a flow meter?

Posted on September 23, 2019 by KimGuo11

What is a flow meter?

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

A flow meter also called a flow sensor, is a device or an instrument used to measure the linear, nonlinear, mass, or volumetric flow rate of a liquid or a gas.

Get a Quote

Here, let’s take a closer look at what is a flow meter.

You may like the wikipedia: Flow Measurement.

If you need to know the flow rate in you pipe, or river, that when you need a flow meter. So, flow meter is the instrument that can finish the flow measurement.

Flowmeters consist of a primary device, transducer, and transmitter. The transducer senses the fluid that passes through the primary device.

The transmitter produces a usable flow signal from the raw transducer signal. These components are often combined, so the actual flow meter may be one or more physical devices.

Different types of flow meters are available for different applications, and depending upon the requirement, a careful selection of flow meters is made.

For e.g., we prefer vortex flow meters flow steam flow measuremnet. And we like the ultrasonic flow meters for non-contact pipe flow measuremnt.

Turbine type flow meter cannot be used for measuring the flow in an unclear liquid (wastewater or corrosive liquids).

Flowmeters are devices that measure the rate of liquid, gas or vapor that passes through them.

Some flowmeters measure flow as the amount of fluid passing through the flowmeter during a time period (such as 100 liters per minute).

Other flowmeters measure the totalized amount of fluid that has passed through the flowmeter (such as 100 liters).

Flow measurement can be described by :
Q = A x v

Q is flow rate, A is the crosssectional area of the pipe, and v is the average fluid velocity in the pipe.

Putting this equation into action, the flow of a fluid traveling at an average velocity of a 1 meter per second, through a pipe with a 1 square meter cross-sectional area is 1 cubic meter per second.

Note that Q is a volume per unit time, so Q is commonly denoted as the “volumetric” flow rate.

Now consider the following equation:
W = rho x Q

Where W is flow rate (again – read on), and rho is the fluid density.

Putting this equation into action, the flow rate will be 1 kilogram per second, when 1 cubic meter per second of a fluid with a density of 1 kilogram per cubic meter is flowing.

(The same can be done for the commonly-used “pounds”. Without getting into details — a pound is assumed to be a mass unit.)

Note that W is a mass per unit time, so W is commonly denoted as the “mass” flow rate.

Now — which flow do you want to measure? Not sure? In some applications, measuring the volumetric flow is the thing to do.

Consider filling a tank.

Volumetric flow may be of interest to avoid overflowing a tank, where liquids of differing densities can be added.

(Then again, a level transmitter and high level switch/shutoff may obviate the need for a flowmeter.)

Consider controlling fluid flow into a process that can only accept a limited volume per unit time.

Volumetric flow measurement would seem applicable.

In other processes, mass flow is important.

Consider chemical reactions,where it is desirable to react substances A, B and C.

Of interest is the number of molecules present (its mass), not its volume.

Similarly, when buying and selling products (custody transfer) the mass is important, not its volume.

Understanding the relationship between Flow Rate and Pressure may help you calculate mass or volume flow.

Flow Metering Principles

From the measurement principle, the flowmeter can be divided into Volumetric flowmeters and Mass flwo meters.

VOLUMETRIC FLOWMETERS:

Differential Head type
- Orifice plates
- Venturi meters
- Annubar
Differential Area type (Rotameters)
Electromagnetic flowmeters
Ultrasonic flowmeters
Turbine flowmeters
Vortex flowmeters
Positive Displacement Meters

MASS FLOWMETERS:

Coriolis Mass flowmeter
Thermal Mass flowmeters

For different working principle, We offer different types of flow meters, like:

Extended reading: Gas Rotameter Tips

Where are flow meters used? Or, What does a flow meter measure?

At industrial sites, meters that measure fluid flow are referred to as flow meters or flow sensors.

It is one of the most important instruments in industrial measurement.

With the development of industry, the accuracy and range of flow measurement requirements are getting higher and higher.

In order to adapt to various purposes, various types of flowmeters have been successively launched,

widely used in oil and gas, petrochemical, water treatment, food and beverage.

Extended Reading: Rotameter vs Flow meter

Industries such as pharmaceuticals, energy, metallurgy, pulp and paper, and building materials.

Measurement of gas mass flow in industrial pipelines
Smoke flow rate measurement from the chimney
Calciner flue gas flow measurement
Air flow measurement during gas process
Compressed air flow measurement
Gas flow measurement during semiconductor chip manufacturing process
Gas flow measurement in sewage treatment
Gas flow measurement in heating ventilation and air conditioning systems
Flux recovery system gas flow measurement
Measurement of combustion gas flow in a combustion boiler
Gas flow measurement of natural gas, flare gas, hydrogen, etc.
Measurement of carbon dioxide gas flow during beer production
Measurement of gas mass flow in the production process of cement, cigarette and glass factory
Open channel

Extended reading: Ultrasonic Insertion Flow Meter for Lined/Large Pipes

Mass flow rate vs Volumetric flow rate is what we must use in flow measurement and control. In this post, we compare the concept of volume flow and mass flow and the conversion between the two.

Commonly used flow meters, such as orifice plates. Turbine flowmeter. Vortex flowmeter. Electromagnetic Flowmeter. Rotameter. The flow measurement value of the ultrasonic flowmeter and oval gear flowmeter is the volume flow of fluid. Coriolis mass flow meters and thermal gas mass flow meters measure mass flow.

When measuring flow, the temperature of the medium and the pressure of the pipe have a great influence on the measurement.

Different flow meters have for you the pressure and temperature tolerance range. More than the rated pressure and temperature range, it will affect the measurement accuracy of the flowmeter. Or even damage the flowmeter.

Therefore, when choosing a flowmeter, be sure to clarify the measurement of temperature and pressure.

Guess you like: What is Reynolds number?

How to select the right flow meter for your application?

There are no “universal” flow meters which are suitable for all applications.

Selecting the proper technology for your application requires, writing a flow specification which covers the use of the meter.

There are usually trade-offs with each meter type, so knowing the critical specifications will be important.

There are some question that need to be answered before choosing a Flow Sensor.

What is the fluid being measured?
Do you require rate measurement and/or totalization?
If the liquid is not water, what viscosity is the liquid?
Do you require a local display on the flow meter or do you need an electronic signal output?
What is the minimum and maximum flowrate?
What is the minimum and maximum process pressure?
What is the minimum and maximum process temperature?
Is the fluid chemically compatible with the flowmeter-wetted parts?
If this is a process application, what is the size of the pipe?

Which flowmeter do you need? Choose your flowmeters below

Magnetic flow meter is also called electromagnetic flow meter, mag flow meter or magmeter. Suitable for the measurement of conductive liquids.

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

Vortex flow meter, also called Vortex shedding flow meter. Vortex Flow Meter is suitable for flow measurement of steam and various liquids and gases.

Precession vortex flowmeter is a new type of gas flowmeter. It can be used for the measurement of natural gas, propane, air, nitrogen and other gases.

The ultrasonic flow meter measures the liquid flow rate quickly and effectively. There are two types of ultrasonic flowmeter technology: Doppler frequency shift and transit time.

Ultrasonic Gas Flow Meter uses the principle of measuring the transit time of ultrasonic waves in the pipeline. Ultrasonic Gas Flow Meter is an ideal choice for various gas measurements.

Differential Pressure Flow Meter is also called DP flow meter. Differential pressure flow meters use the principle of differential pressure to measure the flow of liquid, gas and steam.

Volumetric Flow Meter, as a mechanical flow meter, is also called Positive displacement flowmeter. It can measure the volume flow of high viscosity and corrosive fluids.

**Rotameter flow meter-Variable Area Flow Meters**

All flow meters can work with the AMS TREX, HERE !

You may like:

How to Select Ultrasonic flow detectors?
What is an ultrasonic flow detector? An ultrasonic flow detector is often understood as an ultrasonic…
Irrigation Flow Meters for Agriculture Water System
What is an irrigation flow meter? The irrigation flow meter is a flow meter designed for…
The influence of Reynolds number on the accuracy of the flow meter
What is Reynolds number? Reynolds number is a dimensionless number that can be used to characterize…
Technical Guide – Thermal mass flow meter
What is a Thermal Mass Flow Meter ? The thermal mass flow meter is also called…
Beginner’s Guide: Variable Area flow meter
What is a variable area flow meter? Variable area flow meters are flow meters in which…
Ultrasonic water flow meters | Accurate and Easy solution
The ultrasonic water flow meter is a meter that measures water flow by detecting the effect…
How does a residential water meter work?
What does a residential water meter look like? A residential water meter is a legal meter…
Chilled Water Flow Meter
Application What is a Chilled Water Flow Meter? A chilled water flow meter refers to a…
Mechanical Flow Meters
Selection Guide What is a mechanical flow meter? Mechanical flow meters are a type of flow…
Industrial Oil Flow Meters
Industrial oil flow meters measure the volume or mass of oil. Can realize the mutual conversion…

Sino-Inst offer over 20 flow meters, with Best Price.

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

About 13% of these are magnetic flow meter, 14% are Insertion Magnetic Flow Meter, 25% are Venturi flow meter,

13% are Handheld ultrasonic flow meter, and others are Liquid Turbine Flow Meters.

Sino-Inst is wastewater flow meter suppliers, located in China.

Wastewater flow meter products are most popular in North America, Mid East, and Eastern Europe.

The United States, and India, which export 99%, 1%, and 1% of ultrasonic level transmitter respectively.

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

Request a Quote

Please enable JavaScript in your browser to submit the form