Clamp on Ultrasonic Flow Meter

Posted on September 14, 2020 by KimGuo11

Clamp on Ultrasonic Flow Meter is a wall-mounted ultrasonic flow meter using TGA time difference technology. TGA is an algorithm for measuring process time with higher speed and accuracy.

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Clamp on Ultrasonic Flow Meter Reference price: USD 870.00/pc

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

Request a Quote

Ultrasonic Flow Meters

Features of Clamp on Ultrasonic Flow Meter

Compared with other conventional flowmeters, the LRF-3000S ultrasonic flowmeter has the following characteristics in addition to the flexibility of on-site installation, high response speed and better measurement capability under low flow rates:

Use an independent high-performance FPGA chip with 400,000 gate arrays. The measurement rate can be greater than 300 times per second. Compared with other brands, it has a great improvement in the resistance to air bubbles in the measurement pipe diameter. It can withstand continuous bubbles for up to 5 seconds.
Increased signal strength. It has greater penetrating power to various scales, rust in the pipe and the inner lining of the pipe.
4-line LED display. Easy to operate.
The sensor adopts our unique manufacturing process and matching technology. The zero point range can be controlled within 0.03m/s. The static time difference between each pair of sensors is less than 2 nanoseconds. This effectively guarantees the authenticity of the measured time difference.

Specifications of Clamp on Ultrasonic Flow Meter

Performance specification
Flow range	0 ~ ±12m /s (0~ 40ft /s)
Accuracy	1.0% of measured value
Repeatability	0.20%
Pipe Size	DN25~DN1200mm
Function Specification
Outputs	Analog output: 4~20mA, max load 750Ω.
Outputs	Pulse output: 0~10KHz
Power Supply	10 ~ 36VDC or 10~24VAC
Keypad	16 keys(4X4) touch keys
Display	240*128, 4-line LCD display
Temperature	Transmitter: -14℉~140℉(-20℃~60℃)
	Transducer:-40℉~176℉(-40℃~80℃,TT01 ,Standard)
	Transducer:-40℉~266℉(-40℃~130℃,TT03 ,High Temp)
Physical specification
Transmitter	PC+ABS, IP65
Transducer	Encapsulated design,IP68
	Double-shielded transducer cable
	Standard/maximum cable length:30ft/1000ft(9m/300m)
Packaging	202223.5cm, 3.0kg

External clamp sensor:

The signal cable and sensor are manufactured in one piece without wiring;
Hidden tube tie design, more stable and beautiful after installation;
A pair of sensors can achieve DN25-DN1200mm measurement to meet the use of a larger range of pipe diameters;
Protection grade IP68, can work underwater without water ingress.

Clamp on Ultrasonic Flow Meter Working Principle

Clamp on Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

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

Clamp on water flow meter

Clamp on water flow meter means to measure the water flow rate by clamping the ultrasonic flowmeter sensor outside the pipe. The sensor is non-invasive. Of course, according to the actual requirements of the measurement, it can be fixed or portable.

So, why are we willing to use Clamp on ultrasonic flowmeter to measure the flow rate of water?

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

Advantages of Clamp on water flow meter for water measurement:

External clamp installation, without damaging the pipeline. easy and convenient.
It is convenient to measure ultra-small and ultra-large pipes. As small as Φ9.5. As large as DN6000.
Electromagnetic flowmeter is used to measure the volume flow of conductive liquid with conductivity greater than 5μS/cm. Then other water flow with conductivity less than 5μS/cm can be measured with ultrasonic clamp on water flow meter. For example, ultrapure water.
For pure water, drinking water, etc., it is necessary to keep clean and hygienic. If contact flow meters such as turbine flow meters and orifice flow meters are used, the material must be strictly required. At least 316SS material is required. Then the cost of the contact flowmeter will be very high.

Portable clamp-on ultrasonic flow meter

The portable ultrasonic flowmeter uses a non-invasive sensor to measure liquid flow. The installation process is extremely simple. There is no need to destroy the pipeline during the measurement process and no need to stop production. The sensor is not in contact with the measured medium. Battery powered, small size, light weight and easy to carry. Realize the real sense of mobile flow measurement, online detection, is a real sense of portable ultrasonic flowmeter.

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

Sino-Inst, Manufacuturer for Clamp on Ultrasonic Flow Meter. It can measure a single sound-conducting liquid medium of DN 25—1200mm. It can measure even liquids such as water, sea water, oil, and slurry.

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

KimGuo11

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

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

drurylandetheatre.com

Ultrasonic Flow Meters

Posted on September 14, 2020 by KimGuo11

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.

Transit time ultrasonic flow meter is most suitable for measuring the flow of cleaning liquid. Therefore, it is the most popular type of ultrasonic meter.

Doppler ultrasonic flow meter can measure the frequency difference of sound waves reflected from bubbles or particles in the airflow. It is suitable for aerated or dirty liquids.

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

Request a Quote

More Flow Meters

Featured Ultrasonic Flow Meters for Liquids

**Ultrasonic Water Meter for Residential Water**

**New Products! Insertion Type Ultrasonic Flow Meter-Heat Meter–Mono/multi-Channel**

**Insertion Ultrasonic Water Flow Meter**

**Multipath Transit Time Ultrasonic Flow Meter**

**Wall Mounted Ultrasonic Doppler Flow Meter**

Transit time Ultrasonic Flow Meter Working Principle

Transit time Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

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

Ultrasonic Doppler Flow Meter Working Principle

Ultrasonic Doppler Flow Meter uses the physical principle of Doppler frequency shift to measure the water flow velocity.

Doppler effect (Doppler frequency shift) principle:
The sound waves emitted by one object are received and reflected by another object. If the object emitting the sound wave is moving relative to the receiving object. The frequency of the sound wave received by the receiving object will be different from the frequency of the emitted sound wave.

If the relative distance between two objects is reduced, the received frequency will increase.
If the relative distance between two objects is increased, the received frequency will decrease.

Such Doppler effects often occur in daily life. For example: when you hear the sirens (sounds) of an oncoming police car. The sound will appear higher in frequency. When the police car is far away from you, the sound it hears will become lower.

Through the difference between the frequency of transmitting ultrasonic waves and the frequency of receiving ultrasonic waves, the specific flow rate can be calculated. Then the water level is measured by the pressure sensor, and the water passing area is calculated from the water level and channel size.
Finally, the velocity and area are integrated to calculate the final instantaneous flow.

Calculation formula:
Velocity × water area × 3600 seconds = instantaneous flow rate (cubic meters/hour)

Ultrasonic Open channel flow meter working principle

The open channel flowmeter is based on the specific shape of the Parshall metering groove/weir plate metering groove. It guarantees a certain liquid level and knows a certain flow rate. The Parshall groove/weir plate metering groove is selected as the specific flow channel. The measurement accuracy is high. Easy to install.

The sensor measures the height of the liquid level, which is processed by 89C52 series single-chip microcomputers to obtain the instantaneous flow and cumulative flow values.

The flow can be expressed by the following formula:
　　Q=KHn
　　Q: Instantaneous flow rate (t/h)

K: Flow rate constant
　　H: height of liquid level n: nth power value

The instantaneous flow is processed by the cumulative accumulation to obtain the cumulative flow.

Read more about: Liquid Flow Meters Guide

Sino-Inst, Manufacturer for Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium of DN 25—150mm. It can measure even liquids such as water, sea water, oil, and slurry.

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

KimGuo11

drurylandetheatre.com

Precession Vortex Gas Flowmeter

Posted on September 13, 2020 by KimGuo11

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.

Precession Vortex Gas Flowmeter, like vortex flowmeter, is a velocity flowmeter. The cost performance of the intelligent precession vortex flowmeter is higher than vortex flowmeter. The intelligent precession vortex flowmeter can only measure gas. Precession Vortex Gas Flowmeter can be made into an integrated temperature and pressure compensation. And can measure various gases. Such as compressed air, oxygen, biogas, natural gas, coal gas, etc.

Precession Vortex Gas Flowmeter reference price: DN50, USD 600.00/pc.

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

Request a Quote

More Flow Meters

Features of Precession Vortex Gas Flowmeter

No mechanical moving parts, not easy to corrosion, stable and reliable, long life, long-term operation without special maintenance;
16 bit computer chip, high integration, small size, good performance, strong function;
The intelligent flowmeter integrates flow probe, microprocessor, pressure and temperature sensor into one, and adopts built-in combination to make the structure more compact, which can directly measure the flow, pressure and temperature of the fluid, and automatically real-time tracking compensation and compression factor correction;
Double probe detection technology, new sensor processing technology and reasonable installation method are adopted to greatly improve the signal strength, so that the sensor can accurately detect the signal and suppress the interference caused by pipeline vibration.
Adopt the domestic leading intelligent anti-seismic technology, effectively restrain the disturbance signal caused by vibration and pressure fluctuation;
The Chinese character dot matrix display screen is adopted, which can display the volume flow under working state, volume flow under standard state, total volume, medium pressure, temperature and other parameters directly.
The converter can output frequency pulse, 4 ~ 20mA analog signal, and has RS485 interface, can be directly connected to the computer network, transmission distance up to 1.2km;
With signal transfer output of several physical parameters, users can choose any of them.
Pressure and temperature signals are the input mode of the sensor with strong interchangeability.
The power consumption of the whole machine is low, which can be supplied by built-in battery or external power supply.

Specifications of Precession Vortex Gas Flowmeter

Inside nominal diameter DN (mm)	Range of flow (m3/h)	Nominal pressure (Mpa)	Pressure loss (kpa)	Class of accuracy	Repetitive	Shell material
15	0.6~12	1.6 2.5 4.0 6.3 10.0 16.0 25.0	△P=ρ/1.205×PN	1.0 1.5	Less than the base error limit is definitely worth 1/3	Aluminum alloy 304 stainless Steel
20	1~15
25	2~40
32	3~70
40	4~80
50	6~130
65	8~400
80	15~500
100	40~1000
125	50~1200
150	100~2000
200	360~3600

Further reading: Industrial LPG/Propane flow meter

Vortex Flowmeter VS. Precession Vortex Flowmeter

The common point of precession vortex flowmeter and vortex flowmeter

Both flow meters are velocity flow meters;
Both flow meters can be made into a temperature and pressure compensation system, and can measure various gases, such as compressed air, oxygen, biogas, natural gas, coal gas, etc.;
Both flowmeters have no mechanical moving parts, are not easy to be corroded, are stable and reliable, have a long life, and do not require special maintenance for long-term operation;
The highest accuracy of both flowmeters can reach 1.0%.

Biogas Flow Meters Selection Guide

The difference between precession vortex flowmeter and vortex flowmeter

The working principles of the two flow meters are different;
The intelligent precession vortex flowmeter can only measure gas, while the intelligent vortex flowmeter can also measure liquid and steam;
The maximum caliber of the intelligent precession vortex flowmeter can only achieve 200 caliber, while the maximum caliber of the intelligent vortex flowmeter can achieve 1000 caliber, of which 300-1000 is a plug-in type;
The cost performance of the intelligent precession vortex flowmeter is higher than that of the intelligent vortex flowmeter;

Precession Vortex Gas Flowmeter Structure

Flow meter is composed by below parts:

Swirl generation body
Made by aluminium alloy, with certain angle screw blades, it is fixed in front of the housing contraction, then press the fluid and generate strong swirl flow.
Housing
It has flange itself, and with certain shape fluid channel, according to different working pressure, the housing could adopt cast aluminium alloy or stainless steel.
Intelligent flow totalizer
It is combined of temperature, pressure testing analogue channel, flow testing no. Channel and micro processing unit, LCD drive circuit and other assistant circuit, with the extermal output interfernce.
Temperature sensor
Use the PT100 platinium resistance as the temperature sensitive element, under certain temperaure range, the resistance and temperature is correspond with each other.
Pressure sensor
Use the diffused silicon piezoresistive type bidge road as the sensitive element, the bridge arm
resistance will happen some expected change under pressure effect, under certain excitation current, the two output terminal potential difference in proportion to the outer pressure.
Piezocrystal flow sensor
It is installed at the throat near the housing contraction section, it could test the frequency of swirl.
Clear swirl part
It is fixed at the housing exit section, the function is clear the swirl and decrease the influence to the downstream instruments performance.

Precession Vortex Gas Flowmeter Working Principle

The flow profile of the Precession Vortex Gas Flowmeter is similar to the profile of a Venturi tube.

A set of spiral guide vanes are placed on the inlet side. When the fluid enters the flow sensor, the guide vane forces the fluid to produce a violent vortex. When the fluid enters the diffusion section, the vortex flow is affected by the backflow and starts to rotate twice. A gyroscopic vortex precession phenomenon is formed.

The precession frequency is proportional to the flow rate and is not affected by the physical properties and density of the fluid. The second rotation precession frequency of the fluid measured by the detecting element can obtain good linearity in a wide flow range.

The signal is amplified, filtered and shaped by a preamplifier and converted into a pulse signal proportional to the flow rate. Then, together with the detection signals of temperature and pressure, they are sent to the microprocessor for integration processing. Finally, the measurement result is displayed on the LCD screen. Including instantaneous flow, cumulative flow and temperature and pressure data.

Precession Vortex Gas Flowmeter Flow Totalizer Working Principle:

Flow totalizer is combined with temperature,pressure testing analogue channel, flow sensor channel and micro processing unit, and with the external output signal interface, with many output signals, the micro processor in the flow meter will carry out the temperature and pressure compensation according to gas state equation, and carry out the compress factor amendment. The gas state equation as below:

In the formula:
QN ——flow volume under standard condition. (m3/h)；
QV ——flow volume under working condition. (m3/h)；
Pa ——local atmospheric pressure（KPa）；
P ——flow meter tapping hole measured meter pressure（KPa）；
PN ——atmospheric pressure under standard condition.（101.325 KPa）；

TN ——absolute temperature under standard conditions.（293.15K）；
T ——the absolute temperature of measured fluid.（K）；
ZN ——the gas compression factor under standard condition. ；
Z ——the gas compression factor under working conditions；
Note: when use the bell jar or negative pressure calibrate, use ZN/Z=1, for natural gas (ZN/Z)1/2=FZ is super compression factor, calculated according to the China National Petroleum Corporation standard SY／T6143－1996 formula.

Gas Flow Meter Types

The gas flow meter is a precision instrument used to measure the cumulative flow of gas in the pipeline. There are three main methods for flow measurement:

Positive displacement flow meters, such as diaphragm gas meters, Roots flow meters, etc., accurately measure and settle the gas by rotating the volumetric volume.
A velocity gas flow meter that measures the volume of fuel gas by the gas flow rate.
The way of gas measurement by pressure difference.

Velocity flow meter
Velocity flow meters are a type of flow meters based on the principle of directly measuring the flow velocity of a full pipe in a closed pipeline.
① Turbine flowmeter
② Vortex flowmeter
③ Precession vortex flowmeter
④ Time difference ultrasonic flowmeter
Positive displacement flow meter
Roots flowmeter (gas lumbar flowmeter)
Differential pressure flowmeter
Orifice flowmeter
Venturi flowmeter

Read more about: Industrial Gas Measurement with Digital Gas Mass Flow Meters

Gas flow meter calibration

When using a gas flow meter, due to the influence of the error factors caused by the working conditions and environmental changes. After the uncertainty analysis and the verification of the field experiment data, to meet the requirements of the field use, it is necessary to perform the gas flow meter calibration.

How to calibrate the gas flow meter?

Work status check:
According to the requirements of the gas flowmeter instruction manual. First, check to determine whether the gas flowmeter is working properly.

According to the gas flowmeter calibration certificate or factory calibration sheet, check whether the input of the key parameters affecting the measurement accuracy in the converter is correct.

For pipelines with stopped flow conditions, check the zero flow of the flowmeter.

Remote calibration requires that the gas flow meter must be removed and sent to the secondary or primary flow standard for calibration, and then these new calibration factors are input to the existing data acquisition system.

Although remote calibration may provide higher accuracy. However, from a systematic point of view, this method may not be accurate and true, and it is expensive and laborious to operate.

What are the requirements for gas flow meter calibration?

If the flow conditions can be estimated, then the gas flowmeter can be calibrated under conditions different from the operating conditions. The parameter used to estimate the flow conditions is usually a number with respect to the inlet diameter of the gas flowmeter.

First, convert the operating condition range to a number range.

Secondly, the selected calibration equipment must meet the specified number range.

Then, calibrate under different pressure conditions or using different gases.

Within a certain accuracy level, the characteristics of standard differential pressure gas flow meters are well known. Likewise, the characteristics of certain types of turbine gas flow meters are also known.

In some cases, it is necessary to perform several tests before the final calibration to verify whether the gas flowmeter is operating in compliance with the calibration coefficient.

In the future, some work needs to be done to identify the performance of the vortex baffle gas flowmeter, and to determine the performance of the ultrasonic gas flowmeter and the complementary gas flowmeter in the case of high-pressure gas.

Gas flow turbine meter

Gas turbine flow meter is a velocity flow meter that measures gas flow. For natural gas, nitrogen, and gas trade measurement.

The gas turbine flowmeter integrates temperature, pressure, flow sensors and intelligent flow totalizers. The gas turbine flowmeter has high accuracy and good repeatability, so it is suitable for trade measurement and industrial process detection. It is widely used in many kinds of gas in petroleum, chemical, metallurgy, aviation, scientific research and other sectors and industrial fields. Such as natural gas, city gas, propane, butane, air, nitrogen and other gases measurement.

Gas Turbine Flow Meter reference price: USD900-2500/pc

Further reading: Nitrogen(N2) Flow Meter Types

Natural gas flow meter

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

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

Extended reading: 5 matters to pay attention to when choosing threaded Vortex Nitrogen Gas Flow Meter

LPG gas flow meter

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 trade settlement.

LPG gas (Liquefied petroleum gas) is a kind of hydrocarbon with propane and butane as its main components. LPG is used for heating, motor fuel, industrial applications and in agriculture. LPG can be in a gas or liquefied state. Different type industrial LPG flow meters with accurate and reliable performance. Such as thermal dispersion flow meter, Coriolis flow meter, gas turbine flow meter, vortex flow meters.

💡Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement

Sino-Inst, Manufacuturer for Precession Vortex Gas Flowmeters.

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

KimGuo11

drurylandetheatre.com

Use Differential Pressure Transmitter to Measure Liquid Level

Posted on September 12, 2020 by KimGuo11

Differential Pressure Level transmitter for Continuous tank level measurement.

A liquid level measurement solution that prevents the measured medium from directly acting on the transmitter.itle

In the chemical production, the medium often encounters problems such as impurities, crystal particles or agglomeration. It is easy to block the connecting pipeline. At this time, a flange-type differential pressure transmitter is required.

Silicone oil is filled in the closed system composed of the bellows, capillary tube and measuring chamber as the pressure transmission medium. The measured medium does not enter the capillary tube and the transmitter to avoid blockage.

**Flange Mounted Differential Pressure Transmitter**

**Extended Diaphragm Seal DP Level Transmitter**

**Remote Seal Differential Pressure Transmitter**

**Differential pressure(DP) level transmitter**

Differential Pressure Level transmitters are divided into single flange type and double flange type according to their structure.

Only a flange between the container and the transmitter is called a single flange differential pressure transmitter.

As for the closed container whose upper end is isolated from the atmosphere, the upper space and atmospheric pressure are mostly different. Two flanges must be used to guide the liquid and gas phase pressure to the differential pressure transmitter. This is the double flange differential pressure transmitter.

Differential Pressure Level transmitter for open containers

Open tank level measurement means that the tank is open to the atmosphere. Any change in atmospheric pressure will affect the process fluid pressure in the tank. In this liquid level measurement application, the low pressure side of the transmitter can measure the atmospheric pressure. This eliminates the influence of atmospheric pressure on the tank liquid level. The high-pressure side of the transmitter is connected to the tank. Therefore, the actual liquid level in the tank can be measured.

A single flange is used to measure the liquid level of an open tank.

Differential pressure range calculation method: Need to measure the height of the liquid level (unit: m) × acceleration of gravity (9.8) × measured medium density (unit: g/cm3) differential pressure range (unit: KPa).

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

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

Extended Reading: Differential Pressure (DP) Flow Meters Technology

Differential Pressure Level transmitter for closed containers

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

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

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

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

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

Differential pressure level transmitter working principle

When using Differential pressure (DP) level transmitter to measure the liquid level as shown in the figure below.
The measured liquid density in the figure is ρ.
The working medium density in the capillary of the double flange differential pressure transmitter is ρ0.
The measuring range of the measured liquid level is H.
The center distance of the sampling tube of the measured liquid level is h.
It can be seen from the figure that the maximum measurement range of the liquid level △ P = P + —P- = H × ρ × g-h × ρ0 × g.

It can be seen from the formula that the dual-flange differential pressure transmitter should perform negative migration. The migration amount S is h × ρ0 × g. And the installation position of the double flange differential pressure transmitter has no effect on the migration amount and the measurement result.

Extended reading: Hydrostatic Level Measurement

The dual-flange differential pressure transmitter requires negative migration.

When the measured liquid level is 0, the pressure difference between the positive and negative measurement chambers of the remote differential pressure transmitter is the largest. The output current of the double flange differential pressure transmitter is 4mA.

As the measured liquid level rises, the pressure difference between the positive and negative measurement chambers of the transmitter gradually decreases.

When the measured liquid level rises to the highest Hmax. The pressure difference between the positive and negative measurement chambers of the transmitter is the smallest. The output current of the double flange differential pressure transmitter is 20mA.

Extended Reading: Procurement Guide for Ultrasonic liquid level sensors

You may like:

Sino-Inst offers overs 100 DP transmitters for liquid level, pressure, flow, temperature measurement. Differential pressure (dp) level transmitters suit to measeure water and other liquid level.

A wide variety of DP level transmitters are available to you. Such as SMT3151LT Differential pressure level transmitter.

You can also choose from liquid flow meter and pressure transmitters, not specified. We are differential pressure level transmitter suppliers, located in China. The top supplying country is China(Mainland), which supply 100% of DP transmiters respectively.

KimGuo11

drurylandetheatre.com

Wafer Flange Vortex Flowmeter

Posted on September 12, 2020 by KimGuo11

Vortex flow meter is suitable for measuring steam as well as a variety of liquids and gases. Wafer Flange Vortex Flowmeter is suitable for low pressure pipes. Cost is lower.

Wafer Flange Vortex Flowmeter means that the flowmeter body does not have flanges. The pipeline has flanges. The pipeline is tightened by bolts to clamp the flowmeter hard, so it is called clamping. The flange type Vortex Flowmeter is that the body and the pipeline have flanges. Use A pair of flanges are fixedly installed. Therefore, the pressure and caliber of the Wafer Flange Vortex Flowmeter is not high. However, two flanges are saved, which can be cheaper.

Wafer Flange Vortex Flowmeter reference price: USD 200-700/pc.

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

Request a Quote

Vortex Flow Meters

Features of Wafer Flange Vortex Flowmeter

Suitable for use in petrochemical and other hazardous situations requiring explosion protection;
Explosion-proof certification mark: Ex ia ⅡC T6 Ga;
- Explosion-proof vortex flowmeter. It is not allowed to open the circuit shell when the power is on. It is necessary to alternately switch on and off the power supply for repeated adjustments, which is inconvenient and prone to errors and dangers;
- Intrinsically safe vortex flowmeter. It can be operated at will when the power is on, which is convenient and safe.
It has a very unique medium versatility. It can be used for flow measurement and control of most steam, gas and liquid;
Simple structure, no holes and gaps design, no wear, dirt resistance, no moving parts, low failure rate, high stability and reliability;
Integrated design of temperature and pressure compensation;
The meter body is made of stainless steel, which is suitable for the measurement of corrosive media;
On-site LCD display, pulse, 4-20mA output or 485 communication, can be connected with industrial automation syst

Specifications of Wafer Flange Vortex Flowmeter

Measuring medium	Superheated/saturated steam, liquid and gas
Measuring range	See flow range table for details
caliber	Wafer type/flange type: DN15~DN400~DN1000
Medium temperature (℃)	(-40~80)℃, (-40~150)℃, (-40~300)℃, (-40~400)℃
Environment temperature (℃)	(-20~+70)°C atmospheric pressure: 86kPa～106kPa
Nominal pressure	Liquid 1.6MPa, 2.0MPa, 2.5MPa, 4.0MPa, 5.0MPa, 6.3MPa, 10.0MPa, 25MPa Gas and steam 1.6MPa, 2.0MPa, 2.5MPa, 4.0MPa, 5.0MPa
Accuracy	±1.0%, ±1.5%
Flow rate range (m/s)	Liquid: 0.15~7 Gas: 1.5~60 Steam: 2~70
output signal	Three-wire voltage pulse: high level≥5V low level<1V Standard current signal: (4-20) mA standard current signal proportional to the flow rate, local display flow, cumulative flow. And output proportional to the flow rate (4-20) mA standard current signal and pulse frequency signal Communication method: RS-485 communication
Power supply	Three-wire voltage pulse: DC12V, DC24V Standard current output, local display: DC24V Battery power supply (lithium battery): 3.6V
Ambient temperature	(-20~+70)°C atmospheric pressure: 86kPa~106kPa
Protection level	IP65
Explosion-proof grade	Intrinsically safe Ex ia ⅡC T6 Ga
display	LCD displays instantaneous flow, cumulative flow, vortex frequency, temperature and pressure (integrated temperature and pressure)
Cable interface	M20×1.5 (internal thread, recommended); 1/2NPT (internal thread)
Installation form	Integrated installation; split installation (the measuring tube and the indicator are connected by a 10-core special shielded cable)

Vortex Flowmeter Installation Method

Vortex flowmeters are divided into different installation forms: flange type, clamp type, plug-in type, thread type and clamp type.

When selecting the vortex flowmeter, the flange type is given priority, followed by the clamping type and the plug-in type.

The reason is that the accuracy of clamp-on and insertion type is greatly affected by the installation, and non-standard installation will produce errors.

The installation methods of vortex flowmeters differ as follows:

Flange type: The instrument is connected to the process pipeline through its own flange, with high pressure resistance and large caliber range. high cost.
Clamping type: The instrument is clamped and fixed on the process pipeline by the flange on the pipeline, with low pressure resistance and small caliber range. low cost.
Plug-in type: suitable for large diameter pipes. Ball valves can be installed. Convenient online installation and disassembly.
Threaded type: Threaded installation can only be used for small diameter pipes. Internal thread/external thread installation can be customized.
Clamp type: 316 stainless steel clamp accessories. It is suitable for food, medicine and other hygiene industries. Installation is quick and easy.

Vortex Flowmeter Working Principle

Vortex flowmeter is a speed-type flowmeter produced according to karman’s vortex principle,
which can be used for the measurement and measurement of conventional gas, steam and
liquid.

Vortex flow sensor has high precision and wide range ratio, no moving parts in use, which can
improve mechanical stability and reduce maintenance.Vortex flowmeter is almost not affected by the temperature, pressure and composition of medium when measuring the volume of working condition.

Therefore, it is convenient to calibrate the instrument, so vortex street flow sensor is widely used in production and life.

When a trigonal column vortex generator is set in the fluid, regular vortices are generated alternately on both sides of the vortex generator, which is called Carmen vortex.

The vortex columns are arranged asymmetrically downstream of the vortex generator. Vortex flowmeter is produced according to this principle.

Vortexes are generated by generating bodies and the number of vortexes is detected by high-sensitivity sensors. In a certain range, the number of vortexes generated is proportional to the flow rate.

In vortex flowmeter, the relationship between flow rate and the number of vortexes generated
can be expressed by the following formula：

Q：Operating volume flow of the measured medium. The unit is m3/h。
F：Frequency of the number of vortices produced by the generating body. The unit is Hz.
K：Refers to the calculated or calibrated flow coefficient. It represents how many frequency signals per cube. the coefficient is usually obtained by calibration.

The formula of standard table method calibration coefficient K:

The formula can also be used for flow correction.

Read more about: Vortex Shedding Flow Meter Working Principle

Vortex flowmeter advantages and disadvantages

Advantages of vortex flowmeter

The vortex flowmeter has no moving parts, and the measuring element has a simple structure, reliable performance and long service life.
The vortex flowmeter has a wide measuring range. The turndown ratio can generally reach 1:10.
The volume flow of the vortex flowmeter is not affected by thermal parameters such as the temperature, pressure, density or viscosity of the fluid being measured. Generally, no separate calibration is required. It can measure the flow of liquid, gas or steam.
The pressure loss caused by it is small.
The accuracy is high, the repeatability is 0.5%, and the maintenance is small.

Disadvantages of vortex flowmeter

The volume flow of the vortex flowmeter is not affected by the temperature, pressure, density and other thermal parameters of the measured fluid. But the final measurement result of liquid or steam should be the mass flow rate, and for gas, the final measurement result should be the standard volume flow rate. Both mass flow and standard volume flow must be converted by fluid density, and changes in fluid density caused by changes in fluid working conditions must be considered.
The factors that cause errors are: errors caused by uneven pipeline flow rates; inability to accurately determine the density of the medium when fluid conditions change; and the wet saturated steam is assumed to be dry saturated steam for measurement. If these errors are not limited or eliminated, the total measurement error of the vortex flowmeter will be very large.
Poor vibration resistance. External vibration will cause errors of the vortex flowmeter, or even fail to work normally. The high-velocity impact of the channel fluid will cause additional vibrations to the cantilever of the vortex generator, which reduces the measurement accuracy. The influence of large pipe diameter is more obvious.
Poor adaptability to measuring dirty media. The generating body of the vortex flowmeter is very easy to be dirty by the medium or entangled by the dirt, and the change of the geometric body size will greatly affect the measurement accuracy.
High requirements for straight pipe sections. Experts pointed out that the straight pipe section of the vortex flowmeter must ensure the front 40D and the 20D to meet the measurement requirements.
Poor temperature resistance. Generally, vortex flowmeters can only measure the fluid flow of media below 300°C.

More Featured Vortex Flowmeters

Sino-Instt offer over 10 Voretx FlowMeters, with Best Price.

A wide variety of Voretx Flow Meters options are available to you, such as free samples, paid samples. All of our flow meters can wokrk with the AMS NEW TREX.

Sino-Inst is Voretx Flow Meter suppliers, located in China. Vortex shedding flow meter products are most popular in North America, Mid East, and Eastern Europe.

KimGuo11

drurylandetheatre.com

Vortex Hygienic Flow Meter

Posted on September 11, 2020 by KimGuo11

Hygienic Flow Meter uses stainless steel tri-clamp fittings. Meet the hygiene measurement requirements of food-processing and bio-technology/ pharmaceutical industries.

Hygienic and clean flow metering instruments for measuring the movement of substances in food, beverage and pharmaceutical processes. Hygienic measuring instruments are designed for the food, beverage and pharmaceutical industries, which require a high degree of cleanliness during manufacturing. The Vortex Hygienic Flow Meter is a flowmeter that can be used to measure instantaneous and cumulative flow of liquids, gases and steam.

Vortex Hygienic Flow Meter reference price: USD 300-700/pc.

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

Request a Quote

Vortex Flow Meters

Features of Vortex Hygienic Flow Meter

Dedicated to the sanitary industry, simple internal components, clamp connection;
Software configuration can realize various configurations required for different measurements of different media;
Parameter setting can set the measurement parameters of different fluids. Example: gas deviation coefficient, instrument coefficient, rated value, etc.;
Self-diagnosis diagnoses the setting parameter range, generator output signal, signal sending and receiving, CPU failure, etc.;
Display function Various parameters such as diagnostic code, flow, total, flow percentage, etc.;
On-site LCD display, pulse, 4-20mA output or 485 communication, can be connected with industrial automation system.
Integrated design of temperature and pressure compensation;

Specifications of Vortex Hygienic Flow Meter

Measuring medium	Gas, liquid, vapor
Caliber specification	DN15-300
Flow measurement range	Normal flow rate range of the measuring child: gas 5~50m/s; liquid 0. 5~7m/s
measurement accuracy	1.0 level 1.5 level
Measured medium temperature	Room temperature -25℃～10℃ High temperature -25℃～150℃ -25℃～250℃
Material	Stainless steel 304 stainless steel
power supply	DC24V or lithium battery 3.6V
Explosion-proof grade	Intrinsically safe type iaIIbT3-T6
Protection level	IP65

Extended reading: What Is Difference Between Rotameter And Flow Meter?

Sanitary Flow Meters

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

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

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

The hygienic mass flowmeter is mainly used to measure the mass flow, total amount and density of the medium. At the same time, it can also measure the volume flow and total amount, medium temperature, moisture content, alcohol content of alcohol. Two liquids that are mixed evenly The concentration of raw materials in the process flow, etc.

Sanitary Flow Meter, also called sanitary turbine flow meter or Hygienic turbine flowmeter. Ensure Accurate Flow Measurement in Sanitary food-processing and bio-technology industries.

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

Sanitary metal rotor flowmeters are mainly used in food, beverage, pharmaceutical and other industries. In the production process, it mainly plays the role of metering, ingredient control, and finished product filling. The material needs to be corrosion-resistant to prevent contamination of the product. The structure should not be too complicated and should be simpler. To prevent residual material inside the flowmeter, it is inconvenient to clean. These conditions are met to meet the usage requirements.

For example, a peanut oil processing company needs to use a flowmeter to measure the volume weight of the primary processed oil and the final refined oil, as well as the quantitative control in the filling process.

Extended reading: Featured Hydraulic Flow Meters For Sale

Read more about: Application of sanitary flow meters

Vortex flow meter advantages and disadvantages

Advantages of vortex flowmeter

The vortex flowmeter has no moving parts, and the measuring element has a simple structure, reliable performance and long service life.
The vortex flowmeter has a wide measuring range. The turndown ratio can generally reach 1:10.
The volume flow of the vortex flowmeter is not affected by thermal parameters such as the temperature, pressure, density or viscosity of the fluid being measured. Generally, no separate calibration is required. It can measure the flow of liquid, gas or steam.
The pressure loss caused by it is small.
The accuracy is high, the repeatability is 0.5%, and the maintenance is small.

Extended reading: non contact flow meter

Disadvantages of vortex flowmeter

The volume flow of the vortex flowmeter is not affected by the temperature, pressure, density and other thermal parameters of the measured fluid. But the final measurement result of liquid or steam should be the mass flow rate, and for gas, the final measurement result should be the standard volume flow rate. Both mass flow and standard volume flow must be converted by fluid density, and changes in fluid density caused by changes in fluid working conditions must be considered.
The main factors that cause flow measurement errors are: measurement errors caused by uneven pipeline flow rates; inability to accurately determine the density of the medium when fluid conditions change; and the wet saturated steam is assumed to be dry saturated steam for measurement. If these errors are not limited or eliminated, the total measurement error of the vortex flowmeter will be very large.
Poor vibration resistance. External vibration will cause measurement errors of the vortex flowmeter, or even fail to work normally. The high-velocity impact of the channel fluid will cause additional vibrations to the cantilever of the vortex generator, which reduces the measurement accuracy. The influence of large pipe diameter is more obvious.
Poor adaptability to measuring dirty media. The generating body of the vortex flowmeter is very easy to be dirty by the medium or entangled by the dirt, and the change of the geometric body size will greatly affect the measurement accuracy.
High requirements for straight pipe sections. Experts pointed out that the straight pipe section of the vortex flowmeter must ensure the front 40D and the 20D to meet the measurement requirements.
Poor temperature resistance. Generally, vortex flowmeters can only measure the fluid flow of media below 300°C.

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

Related Blogs

Digital Flow Meter for Argon Gas

What is Digital Flow Meter for Argon Gas? Digital flow meter for argon gas refers to a flow meter that can be used for detection, display, transmission, and signal output…

What Is a BTU Meter?

What is a BTU Meter? A BTU meter is a special instrument that measures the thermal energy transferred in a heating or cooling system. BTU meters are also known as…

Guide for Digital Fuel Flow Meter

Digital Fuel Flow Meter is a flow meter dedicated to measuring fuel, diesel, gasoline, and petroleum. Digital Fuel Flow Meter generally has a digital display or signal output. Such as…

Water Flow Measurement for Pipes and Open Channels

Water flow measurement is common in both industry and life. You may often hear about the use of electromagnetic flowmeters to measure wastewater. The clamp-on ultrasonic flowmeter measures large water…

Explore Oil and Gas Flow Meters

An oil and Gas Flow Meter is A device installed in a pump manifold or treating line to measure the fluid flow rate. Oil and Gas Flow Meters can be…

Strap on Ultrasonic Flow Meters

What is Strap on Ultrasonic Flow Meters? Strap on Ultrasonic Flow Meter is also often called Clamp On Type Flow Meter. The unique feature of Strap on Ultrasonic Flow Meter…

Sludge Flow Meter for Return Activated Sludge

A sludge flow meter refers to a flow meter that can be used to measure the flow of sludge. What kind of flowmeter can be used for sludge flow measurement?…

Industrial Oil Flow Meters

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…

Fluid Flow Meters

Fluid Flow Measurement Devices Fluid Flow Meters measure the amount of liquid, gas, or steam passing through the piping system. Most Fluid Flow Meters are designed to measure the speed…

Extended reading: Ultrasonic Flow Meters Types & Technical Guide

Sino-Instt offers over 10 Vortex Hygienic Flow Meters, with the Best Price.

A wide variety of Vortex Hygienic Flow Meters options are available to you, such as free samples, paid samples. All of our flow meters can work with the AMS NEW TREX.

Sino-Inst is a Vortex Hygienic Flow Meter supplier, located in China. Vortex shedding flow meter products are most popular in North America, Mid East, and Eastern Europe.

KimGuo11

drurylandetheatre.com

Vortex Split High Temperature Flow Meter

Posted on September 10, 2020 by KimGuo11

High Temperature Flow Meter is suitable for high temperature flow monitoring. Suitable for high temperature, high pressure, safety and explosion-proof.

The High Temperature Flow Meter uses a split signal converter. The way the vortex body is separated from the vortex converter. The Vortex Split High Temperature Flow Meter is suitable for high temperature, high pressure, safety and explosion-proof applications, where you need to watch the meter data on site. It is widely used in the measurement of steam, gas and liquid. And inconvenience Under complex conditions of reading data.

Vortex Split High Temperature Flow Meter reference price: USD 500-1500/pc.

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

Request a Quote

Vortex Flow Meters

Features of Vortex Split High Temperature Flow Meter

Not affected by temperature and pressure. At the same time, it is not easy to block and scale. It is resistant to high temperature and high pressure, and is suitable for harsh environments.
The product has no wear, dirt resistance, no mechanical maintenance, and long service life.
The current output is electrically isolated, with good common mode interference suppression.
It can accurately measure the flow of gas, liquid and steam in a wide flow range without being affected by the physical properties of the fluid.
Simultaneous display of flow value and accumulated flow value, no need to switch in turn.
Adopt anti-vibration probe to effectively eliminate the influence of external vibration.
Using split signal converter, the cable length is 10 meters.
The circuit adopts surface mount technology, compact structure and high reliability.

Specifications of Vortex Split High Temperature Flow Meter

Measuring medium	Superheated/saturated steam, liquid and gas
Measuring range	See flow range table for details
caliber	Wafer type/flange type: DN15~DN400
Medium temperature (℃)	(-40~80)℃, (-40~150)℃, (-40~300)℃, (-40~400)℃
Environment temperature (℃)	(-20~+70)°C atmospheric pressure: 86kPa～106kPa
Nominal pressure	Liquid 1.6MPa, 2.0MPa, 2.5MPa, 4.0MPa, 5.0MPa, 6.3MPa, 10.0MPa, 25MPa Gas and steam 1.6MPa, 2.0MPa, 2.5MPa, 4.0MPa, 5.0MPa
Accuracy	±1.0%, ±1.5%
Flow rate range (m/s)	Liquid: 0.15~7 Gas: 1.5~60 Steam: 2~70
output signal	Three-wire voltage pulse: high level≥5V low level<1V Standard current signal: (4-20) mA standard current signal proportional to the flow rate, local display flow, cumulative flow. And output proportional to the flow rate (4-20) mA standard current signal and pulse frequency signal Communication method: RS-485 communication
Power supply	Three-wire voltage pulse: DC12V, DC24V Standard current output, local display: DC24V Battery power supply (lithium battery): 3.6V
Ambient temperature	(-20~+70)°C atmospheric pressure: 86kPa~106kPa
Protection level	IP65
Explosion-proof grade	Intrinsically safe Ex ia ⅡC T6 Ga
display	LCD display instantaneous flow, cumulative flow, vortex frequency, temperature and pressure (integrated temperature and pressure)
Cable interface	M20×1.5 (internal thread, recommended); 1/2NPT (internal thread)
Installation form	Integrated installation; split installation (the measuring tube and the indicator are connected by a 10-core special shielded cable)

Extended reading: Vortex Hygienic Flow Meter

Vortex Split High Temperature Flow Meter Applications

The split display type vortex flowmeter (external power supply, internal battery power supply) can measure almost all conductive, non-conductive, sound-conducting, non-sound-conducting, low-temperature, high-temperature, and viscous media, such as liquid, gas, and steam.

Split display type vortex flowmeter (external power supply, internal battery power supply) is widely used in schools, research institutes, food plants, chemical plants, petroleum, metallurgy, coal mines, pharmaceutical plants, hotels, restaurants, power plants, steel plants, etc. Large and small enterprises in various industries.

The split display type vortex flowmeter is an ideal product for obtaining data from scientific research experiments, real-time measurement of equipment consumption, factory performance evaluation, energy saving and emission reduction, and trade settlement between A and B.

Read more about: Vortex Shedding Flow Meter Working Principle

More Featured High Temperature Flow Meters

Here we simply list the temperature of the following different types of high temperature flow meters:

Thermal mass flow meter ：max 300℃ (572℉)
Coriolis mass flow meter: max 350℃ (662 ℉)
Vortex flow meter: max 350°C (662 ℉)
Balanced flow meter: max 800℃（1472 ℉）
Magnetic flow meter :max 160℃ (320 ℉)
Liquid Turbine flow meter: max 150℃ (302 ℉)
Oval gear flow meter:max 200℃ (392 ℉)
Variable Area Flow Meter/Metal Tube Rotameter: max 300℃ (572℉)
Gas turbine flow meter: max 80℃（176℉）

Please note: high temperature flow sensor is customized ,not standard type. If you need to measure high temperature, please contact Sino-Inst sales engineer.

High temperature mass flow meter

The thermal gas mass flow meter is designed based on the principle of thermal diffusion, which uses the constant temperature difference method to accurately measure the gas. The sensor part consists of two reference grade platinum resistance temperature sensors. Thermal gases are widely used in factory compressed air, blast furnace gas measurement in ironworks, and monitoring and measurement of chimney flue exhaust.

High temperature ultrasonic flow meter

The clamp-on ultrasonic flowmeter composed of wall-mounted host and clamp-on flow sensor can be widely used in various water treatment industries. Applied to online measurement of various liquid volume flow. The main unit and the sensor are installed separately: the sensor is installed on the pipeline, the wall-mounted main unit is installed indoors or in the instrument box, and the main unit and the sensor are connected with an ultrasonic special cable. It is currently the most widely used ultrasonic flowmeter.

High temperature water flow meter

Magnetic Water Flow Meter provide highly accurate flow measurement for a wide variety of conductive fluid applications. Magnetic Water Flow Meter is a volumetric flow meter that measures liquids or liquid slurries that have a minimum conductivity of 5 µS/cm. Based on Faraday’s law of electromagnetic induction. Magnetic Water Flow Meter is ideal for wastewater applications or any dirty liquid which is conductive or water based. It is widely used in water treatment, environmental protection sewage measurement and control, papermaking and other industrial and agricultural production processes for flow measurement and control.

High temperature turbine flow meter

Liquid turbine flow meter is the main type of impeller type flow (velocity) meter. It is composed of sensors and conversion display. The sensor uses a multi-blade rotor to sense the average flow rate of the fluid, thereby deriving the flow or total amount. Liquid turbine flow meter is suitable for measuring liquids that are not corrosive to stainless steel 1Cr18Ni9Ti, 2Cr13 and corundum Al2O3 in closed pipelines and are free of impurities. For milk, soybean oil, edible oil, diesel, purified water.

Sino-Instt offer over 10 High Temperature Flow Meters, with Best Price.

A wide variety of High Temperature Flow Meters options are available to you, such as free samples, paid samples. All of our flow meters can wokrk with the AMS NEW TREX.

Sino-Inst is High Temperature Flow Meter suppliers, located in China. High Temperature Flow Meter products are most popular in North America, Mid East, and Eastern Europe.

KimGuo11

drurylandetheatre.com

Threaded Vortex Nitrogen Gas Flow Meter

Posted on September 10, 2020 by KimGuo11

Nitrogen gas flow meter is used to measure the flow rate of N2 gas. Digital vortex flowmeter can be flange-Wafer-threaded installation. Threaded is suitable for small diameter pipes.

Nitrogen gas flow meter is easy to use, reasonably priced. Threaded connection is a widely used detachable fixed connection. It has the advantages of simple structure, reliable connection, and convenient assembly and disassembly. Nitrogen is required in many processes of the chemical and pharmaceutical industry. Predominantly as protective gas, to prevent the occurrence of explosive atmospheres. Sino-Inst vortex flowmeter can be used for natural gas, nitrogen, biogas and other gases.

Vortex Nitrogen Gas Flow Meter reference price: USD 400-1000/pc.

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

Request a Quote

Vortex Flow Meters

Features of Vortex Nitrogen Gas Flow Meter

The nitrogen flow can be controlled more precisely to save costs.
The nitrogen flow control can also prevent the nitrogen flow from being too large, resulting in insufficient heat supplementation.
The amount of nitrogen output can be accurately known.
The nitrogen flow meter has no movable parts, no wear, and dirt resistance. No mechanical maintenance is required, and the service life is long;
The overall structure design of the instrument is reasonable, the dynamic measurement range is wide, and the pressure loss is small;
The measurement is not affected by temperature and pressure, and is resistant to high temperatures & High pressure.

Specifications of Vortex Nitrogen Gas Flow Meter

Executive standard	《JB/T9249-2015 Vortex flow meter industry standard》
Diameter(mm)	15,20,25,40,50,65,80,100,125,150,200,250,300,(300~1000 plug-in)
Nominal pressure(MPa)	DN15-DN200 4.0(>4.0,Supply agreement)DN250-DN300 1.6(>1.6,Supply agreement)
Medium temperature(ºC)	Piezoelectric type :-40~150,-40~260,-40~330; Projected Capacitive:-40~400(upply agreement)
Body material	1Cr18Ni9Ti(Other material order by agreement)
Permissible vibration acceleration	Piezoelectric type :0.2g Projected Capacitive:1.0-2.0g
Accuracy	±1%R,±1.5%R;plug-in:±2.5%R
Range of degrees	1:6~1:25
Power Supply	Sensor:DC+12V,DC+24V;Transmitter:DC+12V,DV+24V;Battery-powered:3.6V battery
Output signal	Pulse:high level:≥5V low level:≤1V;electricity current:4~20mA
Pressure loss coefficient	Comply with JB/T9249 standard Cd≤2.4
Explosion-proof coefficient	Intrinsic safety :Ex ia II CT2-T4 Explosion-proof type:Exd II CT2-T5
Level of protection	Ordinary type:IP65 Diving type:IP68
Environmental conditions	Tempersature:-20ºC~55ºC,relative humidity 5%~90%,atmospheric pressure:86~106kPa
Applicable medium	gas ,liquid,steam
Transmission distance	Three-wire pulse output:≤300m,Two-wire standard current output:(4~20mA)≤1500m load resistance≤500Ω;RS485/HART≤1200m.
Counduit entry	Thread M20*1.5 or other

What is the difference between Wafer type and screw type connection vortex flowmeter?

Three connection methods: Wafer, thread, flange, etc.:

The flange connection can be selected according to the process requirements, according to different joint surfaces, pressure levels, etc.

Wafer type can be used for various pipe diameters, but the pressure level is not too high.

The application of threaded connection is relatively small, such as small diameter, medium and low pressure, etc.

Read more about: Liquid Flow Meters Guide

Nitrogen Gas Flowmeters-Liquid Nitrogen Flowmeters

5 matters to pay attention to when choosing threaded Vortex Nitrogen Gas Flow Meter

The principle of the vortex flowmeter is to install a stagnant part in the flowmeter pipe. When the fluid flows through the stagnant part. Due to the stagnant effect on the surface of the stagnant part, there will be two asymmetric rows downstream.

These vortices are separated on the side and rear of the stagnant member to form a so-called Karman vortex train. The rotation directions of the two vortices are opposite. Karman theoretically proved that when h/L=0.281, the vortex train is stable. h is the width between two vortex rows, and L is the distance between two adjacent vortices

Correct selection can ensure the better use of threaded connection vortex flowmeter.
What kind of vortex flowmeter should be selected according to the physical and chemical properties of the fluid medium to be measured?

Precise function inspection

Accuracy grade and function Choose the instrument accuracy grade according to the measurement requirements and use occasions, so as to be economical and cost-effective.
For example, it is used for trade settlement, product handover and energy metering occasions. The accuracy level should be higher, such as 1.0, 0.5, or higher.

For process control occasions, different accuracy levels can be selected according to control requirements.

For some occasions that just check the process flow and do not need to do precise control and measurement, you can choose a slightly lower accuracy level, such as 1.5, 2.5, or even 4.0. In this case, you can choose a cheap plug-in vortex flowmeter.

2. Measurable medium

When measuring general media, the full-scale flow of the vortex flowmeter can be selected within the range of 0.5-12m/s of the measured medium flow rate, and the range is relatively wide.
The selected instrument specification (caliber) is not necessarily the same as that of the process pipeline. It should be determined whether the measurement flow range is within the flow rate range. That is, when the flow rate of the pipeline is low and cannot meet the requirements of the flow meter or when the measurement accuracy cannot be guaranteed at this flow rate. It is necessary to reduce the caliber of the instrument to increase the flow velocity in the pipe and obtain satisfactory measurement results.

3. Selection of screw connection vortex flowmeter transmitter

In the saturated steam measurement, the VA piezoelectric vortex flow transmitter is used. Because the vortex flowmeter has a wide range. Therefore, in practical applications, it is generally considered that the flow rate of the saturated steam should not be lower than that of the vortex flowmeter. Lower limit. That is to say, the fluid velocity must not be lower than 5m/s.

Vortex flow transmitters of different calibers can be selected according to the amount of steam used. The caliber of the transmitter cannot be selected by the caliber of the existing process pipeline.

4. Selection of pressure compensation pressure transmitter

Because the saturated steam pipeline is long, the pressure fluctuates greatly. Pressure compensation must be used. Considering the corresponding relationship between pressure, temperature and density, only pressure compensation can be used in the measurement. Because the pipeline saturated steam pressure is in the range of 0.3-0.7MPa. Pressure The range of the transmitter can be 1MPa.

5. Selection of display instrument for screw connection vortex flowmeter

Intelligent flow indicator, with functions of voltage stabilization compensation, instantaneous flow display and cumulative flow accumulation.

Further reading: Nitrogen(N2) Flow Meter Types

Digital Nitrogen Gas Flow Meters

Currently, on the market, there are four main instruments that can measure nitrogen flow:

Thermal gas mass flow meter. For direct mass measurement of industrial gases, compressed air, and aqueous fluids. Including nitrogen.

Coriolis mass flowmeter. Directly measure the mass flow of gas and liquid. It can be used to measure nitrogen, which is more expensive.

Vortex flowmeter. Directly measure the volume flow of gas and liquid. It is necessary to add temperature and pressure measuring sensors and totalizers to calculate mass flow.

Orifice flowmeter. The orifice is used as a throttling element. With a differential pressure transmitter, the volume flow can be calculated. To convert into mass flow, temperature and pressure sensors and totalizers must also be added.

Extended reading: liquid nitrogen level measurement

Nitrogen Gas Flow Measurement

Nitrogen is required in many processes of the chemical and pharmaceutical industry; predominantly as protective gas, to prevent the occurrence of explosive atmospheres。

Such as when handling dusty products or solvents.

If your work requires you to use nitrogen, having a flow meter installed on your tank is a great way to save some money.

These indicators let you know whether gas is moving through the line, often via the use of a levitating ball, a pressure gauge, or other visual cues.

These options are simple to use and reliable, making them must-haves for welders, HVAC technicians, and more.

There are many types of Nitrogen gas flow meters. There are three types of flow meters commonly used to measure nitrogen. Precession vortex flowmeter, gas vortex flowmeter, thermal gas mass flowmeter. When selecting a model, it is necessary to select a suitable model and specification according to the parameters and cost that can be provided on-site.

Frequently
Asked
Questions

Help Center

Nitrogen Flowmeters are a type of flow meter that can measure the flow of nitrogen or liquid nitrogen. The common nitrogen flow rates are nitrogen and liquefied nitrogen. Nitrogen is often referred to as an inert gas. Used in metal processing in some inert atmospheres. When it is liquid, it is a common reagent for cooling, cooling, and freezing. Optimize your nitrogen system and save costs. Therefore, it is very important to accurately measure the nitrogen flow rate.

A gas flow meter is an instrument that measures the flow of gas. Installed in the pipeline to record the amount of gas flowing through. Can measure gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, nitrogen, LPG, hydrogen peroxide, flue gas, methane, butane, chlorine, gas, biogas, carbon dioxide, oxygen, compressed air, argon Gas, toluene, benzene, xylene, hydrogen sulfide, sulfur dioxide, ammonia, etc.

There are many types of gas flow meters. Such as vortex flowmeter, precession vortex flowmeter, orifice flowmeter, thermal mass flowmeter, rotor flowmeter, etc. For the working principle of the specific gas flow meter, you need to query the specific flow category.

During actual measurements. Because nitrogen has similar properties to air. So the air flow meter can measure nitrogen.

However, in theory, it is not universal.
Because the measured medium is different: one is nitrogen and the other is air. The flow meter coefficients are different. Best to check with the flow meter supplier.

The price of different flowmeters varies a lot. The exact flow meter price needs to be calculated based on the measurement parameters.

Related Blogs

Slurry Flow Meter

Flow Meter for Slurry Application Slurry is a product of domestic sewage and industrial wastewater treatment. Slurry consists of solid impurities, a slurry of suspended substances. The main characteristic of…

Digital Flow Meter for Argon Gas

What is Digital Flow Meter for Argon Gas? Digital flow meter for argon gas refers to a flow meter that can be used for detection, display, transmission, and signal output…

Measuring Steam Flow and Steam Flow Meters

Measuring Steam Flow Measuring Steam Flow is a difficult task. But again, it’s a very important thing. Steam flow measurement is difficult, the main reason is determined by the characteristics…

BTU Meter for Chilled Water

What is BTU Meter for Chilled Water? The BTU Meter for Chilled Water accurately measures the thermal energy consumed by chilled water in British Thermal Units (BTU). This is a…

What Is a BTU Meter?

What is a BTU Meter? A BTU meter is a special instrument that measures the thermal energy transferred in a heating or cooling system. BTU meters are also known as…

PD Flow Meters Selection and Application | Oil-Liquid

What is PD flow meter? PD flow meters (positive displacement flow meters) are the only flow measurement technology that directly measures the volume of fluid passing through the flow meter.Rotating…

Fuel Flow Meter for Boat-Selection & Application

Fuel Flow Meter for Boat refers to a flow meter dedicated to measuring marine fuel. There are many types of marine fuel oil. Mainly include light diesel, heavy diesel, fuel…

Guide for Digital Fuel Flow Meter

Digital Fuel Flow Meter is a flow meter dedicated to measuring fuel, diesel, gasoline, and petroleum. Digital Fuel Flow Meter generally has a digital display or signal output. Such as…

Water Flow Measurement for Pipes and Open Channels

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

Sino-Instt offer over 10 Threaded Vortex Nitrogen Gas Flow Meters, with Best Price.

A wide variety of Threaded Vortex Nitrogen Gas Flow Meters options are available to you, such as free samples, paid samples. All of our fNitrogen Gas Flow Meters can wokrk with the AMS NEW TREX.

Sino-Inst is Threaded Vortex Nitrogen Gas Flow Meter suppliers, located in China. Nitrogen Gas Flow Meter products are most popular in North America, Mid East, and Eastern Europe.

KimGuo11

drurylandetheatre.com

Vortex Compressed Air Flow Meter

Posted on September 9, 2020 by KimGuo11

Compressed air flow meter is a upgraded and improved gas vortex flow meter. The karman vortex air flow sensor is researched and produced according to the Karman vortex principle.

Compressed air is an important energy source for manufacturing companies. Therefore, accurate measurement is of great significance to energy saving, emission reduction and cost accounting in the factory. Sino-Inst Vortex compressed air flowmeter is resistant to pipeline vibration. The value is not easy to jump randomly. An excellent partner for you to achieve accurate measurement. Integrated temperature and pressure compensation. The compensated instantaneous flow and cumulative flow can be read directly on the meter, Temperature, pressure and other data.

Vortex compressed flow meter reference price: USD 300-1500/pc.

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

Request a Quote

Vortex Flow Meters

Features of Vortex Compressed Air Flow Meter

Easy to install. Suitable for the measurement of compressed air, nitrogen, argon and other gases;
Integrated temperature and pressure dual compensation. The instantaneous flow and accumulated flow, temperature, pressure and other data after compensation can be directly read on the meter head;
The most advanced FFT spectrum analysis digital signal processing technology is adopted. The lower limit is low and the anti-vibration performance is excellent. It can be installed at the outlet of the air compressor to measure the air output of the air compressor;
RS485 communication output. Equipped with related conversion modules, it can output wireless signals such as NB and GPRS, which can be used with the Internet of Things platform;
Simple structure, no holes and gaps design. No wear, stain resistance, no moving parts. Low failure rate, high stability and reliability;
The vortex flowmeter uses the latest signal processing technology, and the entire system analyzes the measured signal. Then eliminates external interference and media disturbance. Therefore, stable measurement can be achieved even in harsh process conditions;
The piezoelectric element of the vortex flowmeter is embedded in the probe body. It does not touch the medium, and there is no filler inside. The pressure loss is small and the service life is long;
The original signal formed by the vortex flowmeter. The output frequency and flow rate are linear. There is no zero drift problem.

Specifications of Vortex Compressed Air Flow Meter


Measuring medium	compressed gas
Measuring range	See the flow range table of vortex flowmeter for details
口 Path	DN15~DN600
Connection method	Wafer type, flange type
Medium temperature (℃)	(-40~80)℃、(-40~400)℃
Environment temperature (℃)	(-30~+65)℃ Atmospheric pressure: 86kPa～106kPa
Accuracy	1.0%, 1.5%
Velocity range (m/s)	1.5~60
Output signal	1: No local display frequency signal: high level≥5V low level 1V, square wave, pulse duty ratio: 1:1, emitter follower output (optional open collector output) 2: Standard current signal; (4-20) mA standard current signal proportional to the flow 3: Local display instantaneous flow, cumulative flowmeter. Simultaneously output proportional (4-20) mA standard current signal and pulse frequency signal or (4-20) mA+HART 4: Communication method: RS485 communication
Power supply	Voltage pulse type: DC12V, DC24V Standard current output, local display: DC24V Battery powered local display lithium battery: 3.6V
Ambient temperature	Ambient temperature (-40~+55) ℃, relative humidity 5~90 (%), atmospheric pressure: 86kPa~106kPa
Protection level	IP65 is used for indoor and outdoor installation, IP68 can be used for diving installation
Explosion-proof grade	Intrinsically safe Ex ia ⅡC T6 Ga
Show	Instantaneous standard flow, cumulative standard flow, pressure, temperature, instantaneous working condition flow, instantaneous cumulative flow, frequency
Cable interface	M20×1.5 (internal thread, recommended); 1/2NPT (internal thread)

Extended Reading: Digital air flow meters

Compressed Air Flow Meter Working Principle

The vortex compressed air flowmeter is a volume flowmeter that measures the volume flow of gas, steam or liquid, the volume flow or mass flow of the standard condition according to the Karman vortex principle.

When a triangular cylindrical vortex generator is installed in the fluid, regular vortices are alternately generated from both sides of the vortex generator. This type of vortex is called Karman vortex. When the fluid passes through the vortex flow transmitter in the pipeline, two rows of vortices proportional to the flow velocity are alternately generated up and down behind the vortex generator of the triangular column. The release frequency of the vortex is related to the average velocity of the fluid flowing through the vortex generator and the characteristic width of the vortex generator.

The temperature compensation integrated vortex flowmeter also has a temperature sensor. The temperature of saturated steam can be directly measured and the pressure can be calculated. This shows the mass flow of saturated steam.

The temperature and pressure compensation integrated type is equipped with temperature and pressure sensors for gas flow measurement. The temperature and pressure of the gas medium can be directly measured to display the standard volume flow rate of the gas.

Read more about: Importance Of Air Flow Measurement

Compressed Air Flow Measurement

Compressed air is an important secondary energy source for industrial production. Most of it is converted from electrical or thermal energy through compressors. The working fluids converted from a large amount of energy are managed to achieve the effect of saving energy and improving equipment management. Compressed air It is an important economic indicator for cost accounting of enterprises and institutions. This is the main purpose of compressed air flow measurement.

Compressed air flow is an important parameter that expresses the performance of an air compressor, and it is also an important parameter measured in an industrial process. With the widespread application of air compressors, accurate measurement of its flow is essential for product upgrades, industrial production process control and monitoring, and energy conservation and emission reduction.

Compressed air has the following characteristics. Sino-Inst suggestion: Combine the characteristics of compressed air to make a reasonable selection of compressed air flow meters.

Large vibration

Of course, not every air flow meter is installed in places with high vibration. However, the air flow meters installed in the compression plant and the blower room have to consider vibration issues. This vibration mainly comes from compressors and blowers.

The vibration of the machine can be transmitted to a long distance through the air duct or duct. Among them, the largest vibration is the reciprocating compressor. The vibration generated during the operation of large reciprocating compressors often drives the workshop and the surrounding ground to vibrate together. It poses a threat to the accurate and reliable operation of related air flow meters. It causes the fulcrum of the lever-type differential pressure transmitter to move and causes the meter to drift in indication. Vibration causes the vortex flow sensor to produce an interference signal corresponding to the vibration frequency, causing the flow indication to be significantly higher.

Gas with water

Compressed air is taken from the atmosphere, and the atmosphere always contains a certain amount of water vapor. The content of water vapor is expressed by the partial pressure of water vapor ps.

In rainy and foggy days, the partial pressure of water vapor in the outdoor atmosphere reaches saturation. That is, the relative humidity reaches 100%. At this time, compressing the atmosphere is like compressing a sponge that absorbs enough water. As the volume shrinks, there is a corresponding amount Water precipitates. This is the simple principle of compressed air with water.

In fine weather, the relative humidity of the atmosphere is low. However, as it is compressed and reduced to a fraction of its original volume, the partial pressure of water vapor will increase accordingly, and it may also enter a saturated state and precipitate water droplets.

Large-caliber orifice flow meters used to measure the flow of compressed air often have water in front of the orifice, which will affect the accuracy of the measurement. There is often a section of water in the impulse pipeline, causing the differential pressure measured by the differential pressure transmitter to be inconsistent with the differential pressure produced by the throttling device. These are common causes of errors caused by water in the air.

In addition, due to the high nitrogen oxide content in the urban atmosphere, the water droplets contained in the compressed air are acidic, causing corrosion on the surface of the annular chamber and corrosion of the inner wall of the pipeline. The surface becomes rough.

When the iron oxide produced by corrosion becomes dry under certain conditions, it is easy to fall off from the inner wall of the pipe and be carried by the airflow to the front of the orifice plate. This will also affect the flow rate indication. Therefore, these powdery and massive garbage should be removed when the flow is stopped for maintenance.

Pulsating flow

Most of the compressor and blower outlet fluids contain certain pulsation. For example, a reciprocating compressor exhibits half-wave pulsation. Observed at the scene that the outlet pressure of the compressor and blower swings significantly.

Among them, the pulsation frequency of the outlet of the positive (constant) displacement blower is relatively high, generally tens of Hz. The pulsation frequency of the outlet of the reciprocating compressor is relatively low, generally a few hertz.

Flow arterial movement causes high indications of various flowmeters such as differential pressure flowmeters and vortex flowmeters. Cause the float in the float flowmeter to jump up and down.

There are two common methods to eliminate and weaken the influence of flow arterial movement on the value of the flow meter.

One is to install a buffer tank at the compressor outlet to filter out pulsation. Instead, install the flowmeter behind the buffer. In fact, the systems of reciprocating compressors are designed in this way.

The second is to install the flowmeter away from the source of pulsation. In this way, the gas capacity of the process pipeline and its pipe resistance can be used to form a low-pass filter to attenuate the pulsation.

Is temperature and pressure compensation required for Compressed Air Flow Meter?

Many users encounter such troubles: I am measuring compressed air, do I need temperature and pressure compensation?

SIno-Inst relieves your worries:

Whether you need temperature and pressure compensation depends on your requirements for measurement accuracy.

If you have high requirements for measurement accuracy, temperature and pressure compensation is the most accurate.

If you are not demanding and want to save costs, and the pressure fluctuation is not large, you do not need temperature and pressure compensation.

Extended reading: Featured Cheap flow meters for Sale

More Featured Compressed Air Flow Meter

Sino-Instt offer over 10 Vortex Compressed Air Flow Meters, with Best Price.

A wide variety of Vortex Compressed Air Flow Meters options are available to you, such as free samples, paid samples. All of our flow meters can wokrk with the AMS NEW TREX.

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 Vortex Compressed Air Flow Meterr suppliers, located in China. Vortex shedding flow meter products are most popular in North America, Mid East, and Eastern Europe.

KimGuo11

drurylandetheatre.com

Vortex Flow Meters

Posted on September 8, 2020 by KimGuo11

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

What is Vortex Flow Meter?

The vortex flowmeter is a volume flow meter that measures the volume flow of gas, steam, or liquid, the volume flow of standard conditions, or the mass flow of gas, steam, or liquid-based on the Karman vortex principle. When the fluid flows through the dust collector rod of the vortex flowmeter, a vortex is formed. The frequency of vortex shedding is proportional to the fluid velocity. Temperature and pressure compensation can be configured.

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

Request a Quote

More Flow Meters

Featured Vortex Flow Meters

Vortex Flow Meter Applications

The vortex flowmeter is mainly used in the flow measurement of industrial pipeline medium fluid. The medium can be gas, liquid, steam, etc.

The main scope of action includes:

During industrial production, such as metallurgy, coal, electric power, chemical, pharmaceutical, environmental protection and other manufacturing;
Energy measurement. Including the scientific measurement of primary and secondary energy. Such as coal, petroleum gas, natural gas, etc., to achieve energy saving and reduce consumption;
Environmental protection engineering. Including flow measurement of flue gas, sewage, etc.;
Transportation. Including pipeline transportation for control, distribution and scheduling, and better economic accounting through measurement results.

Turbine flowmeter: Measuring oil, liquid
Sewage flow meter: Measuring acid, sewage
Electromagnetic flowmeter: Measuring acid, alkali, sewage
Steam flow meter: Measure gas, steam
Orifice flowmeter: Measuring steam, gas, liquid
Insertion vortex flowmeter: Gas, steam, liquid

Extended reading: High Pressure Rotameter for Liquids/gas-Upto 25 Mpa

Vortex Flow Meter Working Principle

Vortex flowmeter is a speed-type flowmeter produced according to karman’s vortex principle,
which can be used for the measurement and measurement of conventional gas, steam and
liquid.

Therefore, it is convenient to calibrate the instrument, so vortex street flow sensor is widely used in production and life.

When a trigonal column vortex generator is set in the fluid, regular vortices are generated alternately on both sides of the vortex generator, which is called Carmen vortex.

The vortex columns are arranged asymmetrically downstream of the vortex generator. Vortex flowmeter is produced according to this principle.

Vortexes are generated by generating bodies and the number of vortexes is detected by high-sensitivity sensors. In a certain range, the number of vortexes generated is proportional to the flow rate.

In vortex flowmeter, the relationship between flow rate and the number of vortexes generated
can be expressed by the following formula：

The formula of standard table method calibration coefficient K:

The formula can also be used for flow correction.

More about vortex flow meter working principle wikipedia.

Endress+Hauser has a great explanation video about vortex flow meter working principle. Let’s take a look!

Vortex flow meter advantages and disadvantages

Advantages of vortex flowmeter

The pressure loss is small, about 1/4 to 1/2 of the throttling differential pressure flowmeter.
Output a pulse signal proportional to the flow rate, without zero drift.
The structure is simple, firm, easy to install and maintain. There is no need for pressure guiding pipe and three-valve group, etc., reducing leakage, blockage and freezing. The measuring element has simple structure, reliable performance and long service life.
The accuracy is high, generally ±(1～1.5)%R.
The measuring range is wide, the vortex flowmeter with a reasonable caliber is determined, and the range can reach 20:1.
Within a certain Reynolds number range, the output frequency of the orifice flowmeter is not affected by the physical properties (density, viscosity) and composition of the fluid, that is, the meter coefficient is only related to the shape and size of the vortex generator and the pipeline.
The volume flow of the vortex flowmeter is not affected by thermal parameters such as the temperature, pressure, density or viscosity of the fluid being measured. Generally, no separate calibration is required. It can measure the flow of liquid, gas or steam.

Disadvantages of vortex flowmeter

(1) The volume flow of the vortex flowmeter is not affected by the temperature, pressure, density and other thermal parameters of the measured fluid, but the final measurement result of liquid or steam should be the mass flow. For gas, the final measurement result Should be the standard volume flow. Both the mass flow rate or the standard volume flow rate must be converted by fluid density, and changes in fluid density caused by changes in fluid working conditions must be considered.

(2) The main factors that cause flow measurement errors are: measurement errors caused by uneven flow velocity of the pipeline; the density of the medium when the fluid working condition changes cannot be accurately determined; the wet saturated steam is assumed to be dry saturated steam for measurement. If these errors are not limited or eliminated, the total measurement error of the vortex flowmeter will be very large.

Extended Reading: FMCW Radar for High Temperature Level Sensor

(3) Poor vibration resistance. External vibration will cause measurement errors of the vortex flowmeter, or even fail to work normally. The high-velocity impact of the channel fluid will cause additional vibration to the cantilever of the vortex generator, which will reduce the measurement accuracy. The influence of large pipe diameter is more obvious.

(4) Poor adaptability to measuring dirty media. The generating body of the vortex flowmeter is very easy to be dirty by the medium or entangled by the dirt, and the change of the geometric body size has a great influence on the measurement accuracy.

(5) High requirements for straight pipe sections. Experts pointed out that the straight pipe section of the vortex flowmeter must ensure the front 40D and the 20D to meet the measurement requirements.

(6) Poor temperature resistance. Vortex flowmeters generally can only measure the fluid flow of media below 300°C.

There are several classification methods of vortex flowmeter as follows.

(1)Classification by detection method

Vortex detection method is the key technology of vortex flowmeter, according to the vortex detection principle and method can be divided into:

Strain vortex flowmeter;
Strain relief vortex flowmeter;
Capacitive vortex flowmeter;
Photoelectric vortex flowmeter;
Thermal vortex flowmeter;
Ultrasonic vortex flowmeter;
Magnetoelectric vortex flowmeter.

(2) According to the sensor structure form classification can be divided into:

Pipe type vortex flowmeter. Generally used for small and medium diameter pipe flow measurement;
Insertion type vortex flowmeter. Mostly used for large-diameter pipeline flow measurement.

(3) According to the use of flowmeter can be divided into:

Explosion-proof vortex flowmeter. Used in petroleum, chemical industry for the instrument explosion-proof requirements of the occasion;
High-temperature vortex flowmeter. For the measurement of high-temperature media;
Ultra-low temperature type vortex flowmeter. Used for liquid nitrogen, liquid oxygen, and other ultra-low temperature medium measurement;
Corrosion-resistant vortex flowmeter. Used for acid, alkali, salt, and other corrosive media measurement;
Mass type vortex flowmeter. Used for the measurement of fluid quality.

(4)According to the function of the instrument can be divided into:

Conventional vortex flowmeter;
Intelligent street flowmeter. Can be signal detection, processing, compensation operation, display, output in one.

Vortex flow meter installation

Vortex flow meter has certain requirements on the upstream and downstream straight pipe
section of the installation point, otherwise it will affect the flow field of medium in the pipeline and affect the measuring accuracy of the meter. The length of the upstream and downstream straight pipe section of the instrument is required as shown in FIG. DN is the nominal diameter unit of the instrument :mm.

Vortex flow meter pressure drop

Calculate whether the pressure loss has an impact on the process pipeline, calculated by the following formula:

DP=1.2r × V2(Pa)

Where:
DP: Pressure loss (Pa)
r: density of medium (Kg/m3)
V: Average flow velocity in the pipe (m/s)

When the measured medium is liquid, in order to prevent vaporization and cavitation, the liquid pressure of the sensor should meet the requirements of the following formula:
P≥2.6DP + 1.25P1 (Pa absolute pressure)

Where:
DP: pressure loss value (Pa)
P1: The vapor pressure of the fluid (Pa absolute pressure)

What are vortex flow meters used for?

Vortex flowmeter is mainly used for industrial pipeline medium fluid flow measurement. Such as gas, liquid, vapor and other media. Here are some related applications.

Mechanical Flow Meters

Selection Guide What is a mechanical flow meter? Mechanical flow meters are a type…

Industrial Oil Flow Meters

Industrial oil flow meters measure the volume or mass of oil. Can realize the…

Industrial flow meters with analog output

Analog flow meter The analog flow meter is a flowmeter with the analog output…

Digital air flow meters

What Is Digital Air Flow Meters? The digital air flow meter is also a…

Industrial Petrol Flow Meters | Selection Guide

Petrol flow meters are often used for inline monitoring of gasoline flow rates. Positive…

Digital Gas Flow Meters & Controllers List For Air-O2-N2-CO2

Sino-Inst offers a variety of Digital gas flow meters for flow measurement. If you…

Industrial Oxygen Flow Meters

Oxygen Flow Meters are digital flow meters that can measure industrial oxygen. It is…

Industrial CO2 flow meters

CO2 flow meters are instruments that can measure the flow of gaseous or liquid…

Biogas Flow Meters Selection Guide

Biogas Flow Meters are instruments that can measure the flow of biogas. Could be…

LPG flow meters

LPG flow meter is used for flow measurement of liquefied petroleum gas. The flow…

Wet Gas Flow Meters

Wet Gas Flow Meter is an instrument used to measure industrial wet gas flow…

Industrial LPG/Propane flow meter

Featured Inline Propane Flow Meter Propane is also generally referred to as liquefied petroleum…

Inline Air Flow Meters

Featured Inline Air Flow Meters Inline air flow meter units conversion Inline air flow…

Karman vortex air flow sensor VS Mass air flow sensor

Karman vortex air flow sensor is a commonly used flow meter for measuring air…

Natural Gas Flow Meter Selection Guide

A natural gas flow meter is mainly used for inline measurement of natural gas…

Coke Oven Gas Measurement

What kind of flowmeter is used for coke oven gas measurement? The instability of…

Steam Flow Measurement: Do you need temperature and pressure compensation?

Steam flow measurement has always been a problem. Today we solve a problem of…

Compressed Air Flow Meter

Compressed Air Flow Meter, is the digital flow meter work for the air compressor…

Gas Mass Flow Meter

Featured Gas mass flow meters Gas mass flow meter types Further reading: Industrial LPG/Propane…

Nitrogen Gas-Liquid Nitrogen Flowmeters

Nitrogen Flowmeters are a type of flow meter that can measure the flow of…

Extended reading: Ultrasonic Flow Meters Types & Technical Guide

Vortex Flow Meter Price

Price is always a topic of concern. Different types of vortex flowmeters can be found online, and the prices of different vortex flowmeter manufacturers are not consistent. The final quotation is still subject to the actual working conditions on site.

Vortex flow meters have different prices due to different calibers, different materials, different media, and different functions! The price list of vortex flowmeter is attached below for reference.

This is a reference price only. Not the price of the order transaction. Please contact our sales engineers. According to the measurement conditions, choose the appropriate model to confirm the price.

Full-tube piezoelectric vortex flow sensor (Including special flanges, bolts, and nuts)	DN15	515	559
DN20	326	312	415
DN32	357	312	415
DN65	349	363	488
DN80	378	407	488
DN125	459	503	606
DN250	518	569	509
DN300	500	544	662
DN600	544	588	662

Extended Reading: Types Of Crude Oil Flow Meters

Related Products:

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

Extended reading: Flow Totalizer F3000X for Data collection and calculation

Sino-Inst, Manufacturer for Vortex Flow Meters, like gas vortex flow meter, liquid vortex flow meter, sanitary vortex flow meter, insertion vortex flow meter, steam vortex flow meter, and natural gas vortex flow meter.

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

KimGuo11

drurylandetheatre.com

Features of Clamp on Ultrasonic Flow Meter

Specifications of Clamp on Ultrasonic Flow Meter

Clamp on Ultrasonic Flow Meter Working Principle

Clamp on water flow meter

Portable clamp-on ultrasonic flow meter

Featured Ultrasonic Flow Meters for Liquids

Transit time Ultrasonic Flow Meter Working Principle

Ultrasonic Doppler Flow Meter Working Principle

Ultrasonic Open channel flow meter working principle

Features of Precession Vortex Gas Flowmeter

Specifications of Precession Vortex Gas Flowmeter

Vortex Flowmeter VS. Precession Vortex Flowmeter

Precession Vortex Gas Flowmeter Structure

Precession Vortex Gas Flowmeter Working Principle

Gas Flow Meter Types

Gas flow meter calibration

Gas flow turbine meter

Natural gas flow meter

LPG gas flow meter

Differential Pressure Level transmitter for Continuous tank level measurement.

A liquid level measurement solution that prevents the measured medium from directly acting on the transmitter.itle

Differential Pressure Level transmitter for open containers

Differential Pressure Level transmitter for closed containers

Differential pressure level transmitter working principle

Features of Wafer Flange Vortex Flowmeter

Specifications of Wafer Flange Vortex Flowmeter

Vortex Flowmeter Installation Method

Vortex Flowmeter Working Principle

Vortex flowmeter advantages and disadvantages

More Featured Vortex Flowmeters

Features of Vortex Hygienic Flow Meter

Specifications of Vortex Hygienic Flow Meter

Sanitary Flow Meters

Magnetic Sanitary Flow Meter

Hygienic Mass Flow Meter

Hygienic Turbine Flow Meter

Hygienic Metal Rotameter

Vortex flow meter advantages and disadvantages

Related Blogs

Features of Vortex Split High Temperature Flow Meter

Specifications of Vortex Split High Temperature Flow Meter

Vortex Split High Temperature Flow Meter Applications

More Featured High Temperature Flow Meters

High temperature mass flow meter

High temperature ultrasonic flow meter

High temperature water flow meter

High temperature turbine flow meter

Features of Vortex Nitrogen Gas Flow Meter

Specifications of Vortex Nitrogen Gas Flow Meter

What is the difference between Wafer type and screw type connection vortex flowmeter?

5 matters to pay attention to when choosing threaded Vortex Nitrogen Gas Flow Meter

Digital Nitrogen Gas Flow Meters

Nitrogen Gas Flow Measurement

Frequently Asked Questions

What is a nitrogen flow meter?

How does a gas flow meter work?

Can I use air flow meter for nitrogen?

How much does a flow meter cost?

Related Blogs

Features of Vortex Compressed Air Flow Meter

Specifications of Vortex Compressed Air Flow Meter

Compressed Air Flow Meter Working Principle

Compressed Air Flow Measurement

Is temperature and pressure compensation required for Compressed Air Flow Meter?

More Featured Compressed Air Flow Meter

What is Vortex Flow Meter?

Featured Vortex Flow Meters

Vortex Flow Meter Applications

Vortex Flow Meter Working Principle

Vortex flow meter advantages and disadvantages

Vortex flow meter installation

Vortex flow meter pressure drop

What are vortex flow meters used for?

Vortex Flow Meter Price

Frequently
Asked
Questions