Mechanical Oil Flow Meters

What is mechanical oil flow meter?

Mechanical oil flow meter refers to a flowmeter that can detect the volume flow of oil inline. Most importantly, this type of flowmeter is a mechanical measurement. It is common to use an oval gear flowmeter to measure the flow rate of diesel oil, or other relatively viscous oils.

Mechanical Oil Flow Meters

Featured Mechanical Oil Flow Meters

oil flow meter types

At present, the following types of flow meters can be used to measure oil: Turbine flow meters. Gear flow meter. Vortex flowmeter. Ultrasonic flow meter. Mass flowmeter. Differential pressure flow meters.

You can find a suitable flow meter in the appropriate type of oil flow meter according to your needs. Of course, maybe, you don’t know what type of flowmeter you should use.

Read more about: Choose the most suitable Inline flow meter

Next, we recommend suitable flow meters for some commonly used oils.

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

Industrial Fuel is an important energy source for production and manufacturing. For example, diesel, marine fuel, gasoline, etc. It is very necessary to accurately measure industrial fuel. Commonly used industrial fuel flow meters, such as turbine flow meters, gear flow meters, mass flow meters, ultrasonic flow meters, etc.

If your fuel has low viscosity and good flow rate. You can first refer to the turbine flowmeter. As long as the pressure and flow range are satisfied, you can find a suitable flow meter and use the best price.

Extended reading: Flow Totalizer F3000X for Data collection and calculation

If you need to measure the flow of cooking oil. Such as sunflower oil. Then, the sanitary flowmeter is the first choice.

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 a pulse frequency signal. It is used to detect instantaneous flow and total integrated flow. A Sanitary flow meters can be used in food, sports drink, liquor, and other beverage industries, in preprocess applications.

Read more about: Sanitary Flow Meters-316SS,Tri clamp-Pulse- for Brewery

Vortex Shedding Flow Meter

The heat transfer oil uses a high-temperature vortex flowmeter to measure the flow rate. Can meet the measurement of high temperature. the best price.

Extended Reading: Summary Of Crude Oil Flow Measurement Options

For measuring lubricating oil, the mechanical oval gear flowmeter is the first choice. Because of measuring temperature, high viscosity measurement can be met. Oil with low viscosity can be measured with a turbine flowmeter.

Extended reading: mechanical oil flow meter

To measure crude oil, you can also consider the oval gear flowmeter first. If the precision is extremely high. Then you can use a mass flow meter.

Extended reading: Oil Level Measurement Solutions for the Oil & Gas Industry

There is no hydraulic oil flow meter in the strict sense. It is not accurate to say which flowmeter is a hydraulic flow meter. Which one to use depends on the specific flow measurement conditions.

For example, the hydraulic oil is also labeled, 40 #, 46 #, or other viscosity properties. Then choose a suitable flow meter according to the relevant information such as flow, pressure, viscosity, and so on.

Read more: How to Select Hydraulic flow meter for Hydraulic oil flow? 

Of course, turbine flowmeters can be considered first.

Extended Reading: Guide and Selection for Diesel Fuel Flow Meters

The heating oil flow meter is also called a heating oil flow gauge. It is a high-temperature mechanical fuel meter. A high-temperature type oval gear flow meter can be used as a heating oil flow meter. Can reach 60℃~200℃.

Read more.

Extended Reading: Rotameter vs Flow meter

mechanical flow meter types

There are many types of flow meters.

The electromagnetic flowmeter is based on the electromagnetic principle. When a conductive fluid flows through an electromagnetic field, the velocity of the fluid can be obtained by measuring the voltage.

Ultrasonic flow meters use the principle of ultrasonic acoustics to measure flow velocity. The mechanical flow meter is a relative concept.

Compared with other flow meters, the mechanical flowmeter relies on the rotation and displacement of mechanical parts to measure the flow rate. Common mechanical flow meters have the following categories.

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

A positive displacement flowmeter as a mechanical flow meter is a common type of Volumetric Flow Meter. It can measure the volume flow of high viscosity and corrosive fluids.

Volumetric flow meter working principle

The positive displacement flow meter is a flow meter that uses mechanical measuring elements to continuously divide the fluid into a single known volume, and repeatedly fill and discharge the volume of fluid to accumulate the total amount of fluid.

Read more about: positive displacement flowmeter

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

Rotameter flow meter working principle

When the measured fluid passes through the annulus formed by the cone and floats from the bottom to the top. The differential pressure produced at the upper and lower ends of the float forms the force for the float to rise. Until the rising force equals the weight of the float immersed in the fluid, the float will stabilize at a certain height.
The height of the float in the tapered tube and the flow rate through it correspond to each other.

Read more about Rotameter flow meter-Variable Area Flow Meters

Extended reading: Beginner’s Guide: Variable area flow meter

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

Turbine Flow Meter Working Principle

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

Read more about Turbine Flow Meter Working Principle

Gear flow meter is a micro digital positive displacement flow meter. Can measure very small flow rates and quantify small volumes of liquid. High and low temperature resistance (-196℃-200℃).

Gear flow meter working principle

With the flow of the medium, the gears mesh and rotate. Under the action of the fluid flow, a pressure difference is formed at both ends of the instrument inlet and outlet. There is no need for power supply. A pair of gears rotate freely. The cavity between the gears is filled with liquid. Discharge and measure the number of revolutions of the gear to know the flow of liquid and liquid flowing through the instrument.

Read more about Gear flow meter for Microflow

Frequently asked questions

Mechanical flow meters are a type of flow meters that use arrangement moving parts to measure flow. The fluid passes through a series of gears or chambers (positive displacement or PD) or through a rotating turbine or rotor. Mechanical flowmeter is different from electromagnetic and ultrasonic in principle. Mechanical flow meters easily monitor liquid flow rates for water, fuels, viscous fluids and more.

More about Different Types of Flowmeters – Technical and Application Analysis.

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

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

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

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

Extended reading: More Inline Digital Diesel Fuel Flow Meters

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

Extended reading: Ultrasonic Water Meter for Residential Water

Oil is generally transported through pipelines. There are many ways to measure oil flow. For example, use the oil tank level difference to calculate the oil flow. Of course, the simplest and most effective way is to use a flow meter.

Although the types of oil flow meters are different, their working principles are different. However, they can all help us achieve a goal. That is to measure and monitor the flow of oil. Instantaneous flow, cumulative flow, etc.

So that we can better control production and trade.

Read more about: Industrial Oil Flow Meters

Flow Meter Selection Guide 101: Find the Perfect Fit for Your Application

mechanical flow meter for diesel

There are three types of flowmeters commonly used to measure diesel.

  • The first is the oval gear flowmeter, which is also commonly used with an accuracy of 0.5.
  • The second is the liquid turbine flowmeter, the accuracy can be 0.5, flange or threaded connection
  • The third type is float type, installed vertically or horizontally, with an accuracy of 1.5.

Read more about: Featured Inline Diesel Fuel Flow Meters

More Featured Oil Flow Meters

mechanical water flow meter

Mechanical water flow meters refer to a type of flow meter suitable for clean water processes or applications. The working principle of a mechanical water flow meter is to measure the speed of water flowing through a pipe. This causes the piston or turbine to rotate. The volume flow of water is proportional to the rotation speed of the blades. Compared with electronic water flow meters, mechanical water flow meters may become clogged when the water is dirty or contains large particles. When the water flow is low, the mechanical water meter does not work well.

Water Flow Meters

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Sino-Inst offers Mechanical Oil Flow Meters with best price. Please contact our sale engineer for quotation.

Sino-Inst offers over 50 Mechanical Oil Flow Meters for flow measurement. About 50% of these are differential pressure flow meters, 40% is the turbine flow sensor, and 20% are dp flow meters and gear flow meters.

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

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

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Clamp on Water Flow Meter

What is Clamp on Water Flow Meter?

Clamp on Water Flow Meter is also known as the clamp-on ultrasonic flowmeter. Using an ultrasonic flowmeter to measure water flow rate is a great choice.

Clamp on Water Flow Meter measures liquid flow meters with full pipes. Measurable medium: drinking water, river water, sea water, groundwater cooling water, high temperature water, sewage, lubricating oil, diesel oil, fuel oil, chemical liquid and other homogeneous fluids.

Clamp on Water Flow Meter can choose portable host, or wall-mounted host. Non-contact measurement without cutting the line.

Why Choose Clamp on Water Flow Meter?

Clamp on Water Flow Meter will be the first choice for many customers to measure water flow. Mainly based on the following points:

  • With a powerful magnet, when measuring steel pipes and cast iron pipes, just attach the sensor to the outer wall of the pipe.
  • Equipped with a grounding terminal, it can be used in situations with strong electromagnetic interference.
  • It can be fixed by steel belt, steel wire rope, tension belt and special fixture.
  • The upper cover of the sensor marks the emission direction of the ultrasonic signal.
  • After the junction box is filled with glue, the protection level can reach IP68.
  • Complete specifications, divided into three types: large, medium and small, measuring pipe diameter range: DN15~DN6000mm, temperature range: -40~90℃.
  • According to different uses, standard clip-on sensors are divided into two categories: portable and fixed.
  • For large diameter pipe measurements, the Clamp on Water Flow Meter is easy to install. And compared to other water flow meters, the cost is reduced.

Extended Reading: 3 inch (3″) Water Meter

Technical Parameters of Clamp on Water Flow Meter

Item Performance and Parameter
Convertor Principle transit-time ultrasonic flowmeter
Accuracy

Flow: over 1%-2%(battery-powered supply over ±2% ),Heat: over ±2%,Repeatability: over 0.2%

Display

2×20 character LCD with backlight, support the language of Chinese, English and Italy Convertor dimension:170*180*56cm

Operation Support 16 key light touch keyboard and the Simulation keyboard software
Signal Output

1 way 4~ 20mA output, electric resistance 0~ 1K,accuracy0. 1%

1 way OCT pulse output ( Pulse width 6 ~ 1 0 0 0 ms,default is 2 0 0 ms)

1 way Relay output
Signal Input

3 way 4~ 20mA input, accuracy 0. 1%,acquisition signal such as temperature, press and liquid level

Connect the temperature transducer Pt100, can finish the heat/energy measurement

Data interface

Insulate RS485 serial interface, upgrade the flow meter software by computer, support the MODBUS, METER-BUS etc.

Other Function Automatically remember the previous flow/energy data of 512 days,  128 months and 10 years
Automatically remember the previous flow/energy data of 512 days working condition and check it
Automatically remember the previous 32 times power on/off time and flow rate
Special Cable

Twisted-pair cable, generally, the length under 50 meters; Select the RS485 communication. The transmission distance can over 1000m.

Pipe Installation Condition Pipe Material

Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed.

Pipe Diameter 15mm—6000mm
Straight length pipe

Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump.

Measuring Medium Type of Liquid

Water (hot water, chilled water, city water, sea water, waste water, etc.);  Sewage with small particle content; Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);  Chemicals (alcohol, acids, etc.); Plant effluent; Beverage, liquid food;  Ultra-pure liquids; Solvents and other liquids

More about: Sewage Flow Meter Selection

Temperature

Standard Transducer: -30–90℃; High-temperature transducer: -40–160℃

Turbidity No more than 10000ppm and less bubble
Flow rate 0–±12 m/s
Working Environment Temperature Main Unit: -20–60℃
Flow transducer: -40–160℃; 
Temperature transducer: according to the customer’s demands.
Humidity

Main Unit: 85% RH; Flow Transducer: Ip67

Power Supply DC  24V or AC  85-264V
Power Consumption 1.5W

Read more about: Top Flow Meters For PVC Pipes

Extended reading: Typical Applications of Handheld Ultrasonic Flow Meter

Working Principle of Ultrasonic Clamp on Water Flow Meter

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


Recently, our company received a call from a customer asking about an ultrasonic flowmeter for measuring sewage flow.

After communication, it was learned that the customer installed flow meters for many sewage pumping stations. Some on-site installations were pipeline-type electromagnetic flowmeters. Some installed plug-in flowmeters.

The pipeline-type flowmeter was first installed on this site. Later, an insertion-type flowmeter was installed. It was broken and could not be measured normally.

However, the water cannot be stopped at present, and the pipeline-type flowmeter should be reinstalled.

Therefore, the customer came to Sino-Inst and ordered an ultrasonic flowmeter that can be installed on the outer wall of the pipeline to measure the flow. After the construction period allows, it will be replaced with a pipeline-type sewage flowmeter.

Extended reading: Portable ultrasonic flow meter for water

In the production of electricity, the amount of demineralized water in power plants is quite large, and how to measure the demineralized water effectively has always been a headache.

According to the traditional flowmeter selection method, orifice flowmeter or turbine flowmeter is generally used.

Some people will ask: Why not use an electromagnetic flowmeter?

Here we need to popularize a common sense about the use of electromagnetic flowmeters. Since the working principle of electromagnetic flowmeters is based on Faraday’s law of electromagnetic induction. When a conductive liquid moves in a magnetic field to cut magnetic lines of force, an induced potential is generated in the conductor. The flow of fluid in .

It is very important to note that the measuring medium must be a conductive liquid. This is the basic requirement for the electromagnetic flowmeter to work properly.

Although the electromagnetic flowmeter has high precision and stable operation, there is no problem in measuring general media, such as sewage, ionized water, acid-base salt and other solutions.

However, because the demineralized water in the power plant has low ion content and low electrical conductivity, its electrical conductivity cannot meet the measurement requirements. Therefore, the electromagnetic flowmeter cannot measure the flow of demineralized water.

Orifice flowmeters and turbine flowmeters are traditional flowmeter types. Because the measuring components need to be in direct contact with the measuring medium. There are also various defects such as blockage, poor accuracy, and troublesome installation. Its effect is also not ideal.

On site visits, we found that there are many disadvantages when using this type of flowmeter.

There are also customers who are consulting our technical department, mentioning that they have used metal rotameters, and there is no problem in measurement. Because it is desalinated by centrifugal pumps, they are often stuck by debris. Also, the pump is frequently started and stopped, and the rotor is often blocked. Broken. Ask if there are more measuring instruments and methods.

In view of this common situation. According to our experience, we recommend that you choose the outer clamp ultrasonic flowmeter, which is very effective to measure the flow rate of demineralized water.

  1. This is the obvious difference between the external clip-on ultrasonic flowmeter and the electromagnetic flowmeter. The external clip-on ultrasonic flowmeter is not affected by the conductivity of the fluid, and can accurately measure pure water with low conductivity or low conductivity that cannot be measured by the electromagnetic flowmeter. other fluids.
  2. The accuracy of the clip-on ultrasonic flowmeter fully meets the measurement requirements, and its accuracy is usually ±1%, and ±0.5% after correction.
  3. Because its measuring probe is outside the pipe wall, it is closely connected with the pipe wall through a couplant, and does not directly contact the measured medium, and there is no blocking part, and its operating life can be very long. Good guarantee. 
  4. Strong anti-interference ability, wide range of power supply, to meet the needs of the scene.
  5. The installation of the outer clamp ultrasonic flowmeter is also very convenient, as long as the outer clamp sensor is installed on the outer pipe to avoid cutting off the pipe and contaminating the demineralized water.

The clamp-on ultrasonic flowmeter is an excellent flow measurement product. Ideal for flow measurement of pipe materials such as PVC, cast steel and stainless steel.

It is not only suitable for measuring low-conductivity demineralized water or pure water that cannot be used by electromagnetic flowmeters and other products. It is also suitable for various other types of fluid media.

The accuracy of ultrasonic flowmeter in measuring liquid flow is almost not affected by the temperature, pressure, viscosity, density and other parameters of the measured fluid.

It solves the flow measurement problems of strong corrosive, non-conductive, radioactive and flammable and explosive media that are difficult to measure by other types of instruments.

Extended reading: Ultrasonic Water Meter Working Principle

For liquids with low dielectric constant, the flowmeter measuring instruments that can be used include electromagnetic flowmeters, turbine flowmeters and other products.

However, in the pharmaceutical, food and other industries, the quality of water is very high. It is often encountered that pure or ultrapure water needs to measure the flow.

What kind of flowmeter is the most suitable for pure water and ultrapure water?

We know that pure water and ultrapure water is a source of high quality water.

The filter cartridges of the ultra-clean filter units for the production of pure and ultra-pure water are made of pure polypropylene. Activated carbon is used to remove inorganic and organic trace contamination of ion exchange resins (nuclear grade) and adsorber resins. Dedicated ion exchange resins (nuclear grade) remove inorganic ions.

Dissolved organic matter is removed by adsorber resin, and the pore size of the sterile filter is 0.2 μm.

The conductivity of pure water and ultrapure water obtained by such purification equipment: 0.055 μS/cm. Bacterial content: 1 CFU/ml. It is generally used in fields with high requirements such as biopharmaceuticals.

Before choosing which flow rate, let’s first compare the application conditions of various flow meters.

  1. Electromagnetic flowmeter. Since the conductivity of pure water is only 0.055 μS/cm. Much lower than 5 μS/cm, so electromagnetic flowmeters can only be ruled out.
  2. Turbine flowmeter. Turbine flowmeters are contact measurements, and pure and ultrapure water are particularly demanding on materials. Therefore, the main material must be 316L during manufacture. Use hygienic clamp fittings. Production costs immediately increased considerably.
  3. Vortex flowmeter, orifice flowmeter, etc. are all contact measurement. will undoubtedly come into direct contact with the fluid. resulting in different levels of pollution. So neither is the best choice.

So, which flowmeter to choose is the most suitable for the ultrapure water device of the pure water system?

There is no doubt that the flow measurement instrument we need has the following points:

  1. The measuring components should not be in direct contact with the measuring medium. Make sure that the liquid to be tested cannot be contaminated in any way.
  2. The measuring instrument must not be affected by the dielectric constant of the measured liquid.
  3. The installation and measurement data of the measuring instrument should not be affected by the size of the measured pipe diameter.

According to the above requirements, Clamp on Water Flow Meter is undoubtedly the best representative for measuring such liquids.

Clamp on Water Flow Meter is a non-contact meter, which can measure the flow of medium with large diameter and can also be used for the measurement of medium that is difficult to touch and observe.

So far, we believe that the Clamp on Water Flow Meter is the best choice for measuring the flow of ultrapure water system purified water equipment.

Extended Reading: LORA water meter

Recently, a customer called and said that he wanted to measure the flow output of circulating water. The diameter of the pipe is also not sure what it is. Very vague consultation. Said to use a Doppler flowmeter.

Our technical engineer said if the measurement is circulating cooling water. Cannot be measured with a Doppler flowmeter. It is only used in rivers and channels. Doppler measurement principle: double-beam acoustic Doppler profile flow measurement technology to measure.

At present, it is recommended that he use an external clamp-type flowmeter, and the principle of measurement is the time difference method.

Technical parameters of dual-beam acoustic Doppler profile flow measurement technology:

  1. Measurement principle: dual-beam acoustic Doppler profile current measurement technology;
  2. Flow velocity measurement range: ±0.01m/s—±5m/s, maximum ±20m/s;
  3. Flow velocity measurement accuracy: ±1%, ±5mm/s;
  4. Maximum profile distance: 120m;
  5. Transducer wave velocity angle: 1.5°±0.2°;
  6. The maximum number of layers in the unit: 128 layers, and the flow velocity of the layered profile can be displayed;
  7. Layer thickness range: 0.5-4m;
  8. Water level measurement range: 0.1-20m;
  9. Water level measurement accuracy: 0.5%, ±5mm;
  10. Communication interface: RS232, RS422, MODBUS interface;
  11. The instrument directly outputs data: average flow rate, water level, real-time flow, cumulative flow; the instrument directly outputs data without any external transfer calculation module to prevent tampering with the original data.
  12. Alarm output function: can output low water level alarm, instrument tilt alarm function;
  13. Built-in storage: It can store the flow rate data for more than one year, and has the function of re-issuing data over time to meet the needs of the central platform to retrieve flow data in real time.
  14. Protection level: IPX8 and IP6X are required

After comparison, the customer found that the principle of the time difference method of using the clamp-on flowmeter was indeed suitable for him. He said he was very satisfied with the advice we gave.

We are a professional technical manufacturer of ultrasonic flowmeters, if you need it, welcome to consult!

The clamp-on ultrasonic flowmeter does not need to disconnect the pipeline and stop production during installation, which brings great convenience to the majority of users and is deeply loved by the majority of users.

But in general, it is only suitable for pipes of a single material. Such as carbon steel pipes, stainless steel pipes, PVC pipes. Measurements are not possible on lined pipes or pipes with cladding material.

However, some special pipelines can also be treated with methods to facilitate the use of clamp-on ultrasonic flowmeters.

A customer wants to measure the flow of tap water. But the pipes are galvanized pipes. Our technical engineers give the following solutions:

  1. Connect the instrument cable first. Input the pipeline parameters after power-on, and calculate the installation distance of the probe;
  2. Use a polisher to polish off the galvanized layer of the probe installation point on the pipeline. Until the carbon steel layer inside the pipe is exposed;
  3. Apply the fine mixture and bind the upstream and downstream probes according to the conventional method;
  4. Check the working status of the instrument until it works normally.

In this way, Clamp on Water Flow Meter can work well.

Strap on flow meter X3 is very unique in its structural design. It uses circular magnetic steel to realize automatic engagement during installation. It only takes 2-3 minutes to complete from installation to measurement. It also uses the current popular OLED display, It can be easily read even in insufficient environments.

Strap on flow meter X3 is widely used in flow measurement and monitoring in the production process. The application of the product continuously effectively and accurately controls the flow of the fluid, while improving the yield of the product. It even saves the investment of personnel and brings benefits to the production enterprise.

Strap on flow meter X3 can meet the needs of different pipe materials: stainless steel pipe, carbon steel pipe, copper pipe, plastic pipe (PVC, PPR, PPH, HDPE), etc.

Strap on flow meter X3 almost meets the measurement of different clean fluids: various acids, alcohols, chemical solvents, alcohol, drinking water, Coca-Cola water… etc.

MoeldX3-φ6.35X3-φ9.53 X3-φ12.7X3-φ15X3-φ20X3-φ25
Weight(KG)0.910.910.90.90.840.84
MoeldX3-φ32X3-φ40X3-φ50X3-φ63X3-φ75X3-φ99
Weight(KG)0.820.880.981.431.521.95

More Water Flow Meter Types

Water flow meters are flow meters that can diaplay the flow rate of industrial water pipe.

A water flow meter measures the amount of water flowing through a pipe. We have several kinds to choose from, depending on the application, maintenance needs, and budget.

Extended reading: 2 inch Water Flow Meter

There are 4 common water flow meter types:

Turbine (also called mechanical), Vortex, Ultrasonic, and Magnetic. We will tell you everything you need to know about them and help you choose one for your application.

Read more about: Types of Water Flow Meter

Frequently
Asked
Questions

Our clamp-on flow meters’ accuracy is generally 1%. This accuracy has been able to meet most of the measurement needs.

The clamp-on flow meter is a flow meter with an external clamp-on flow sensor. Most flow meters are in-line pipe section mounts. The Clamp-on flow meter is a flow meter that only needs to be clamped on the outside of the pipe to measure the flow rate. This is important for many pipes that cannot be cut and bored.

Clamp-on flow sensors are based on the time difference method. The time difference caused by different propagation velocities during forward and reverse propagation is used to calculate the velocity of the measured fluid.

Clamp-on flow sensors employ two acoustic transmitters (sa and sb) and two acoustic receivers (ra and rb). Two sets of sound waves from the same sound source are transmitted between sa and ra and between sb and rb respectively.

The clamp-on ultrasonic flowmeter is installed along the pipeline at an angle of θ (generally θ=45°).

Due to the sound waves traveling downstream are accelerated by the fluid. The sound waves traveling upstream are delayed. The time difference between the clamp-on ultrasonic flowmeters is proportional to the flow rate.

You can also send a sinusoidal signal to measure the phase shift between two sets of sound waves or send a frequency signal to measure the frequency difference to measure the flow rate.

If the water meter is divided into two categories. You may be referring to velocity water meters and volumetric water meters.

In fact, water meters can be divided into 8 types according to measurement principle, measurement grade, nominal diameter, use, installation direction, temperature, pressure and form.

  1. According to the measurement principle: speed water meter, volumetric water meter.
  2. According to the measurement level: A-level meter, B-level meter, C-level meter, D-level meter. The larger the range, the higher the measurement level.
  3. According to the nominal diameter: large diameter water meter, small diameter water meter.
  4. According to the purpose: civil water meter, industrial water meter.
  5. According to the installation direction: horizontal installation of water meters, vertical installation of water meters.
  6. According to the temperature: cold water meter, hot water meter.
  7. According to the pressure: ordinary water meter, high pressure water meter.
  8. Classification by form: analog type, digital type, analog-digital combined type.

Extended reading: Advantages and disadvantages of ultrasonic water meters

Read more about: How to Measure River Water Level?

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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…

Sino-Inst, Manufacturer for Clamp on Water Flow Meters. It can measure a single sound-conducting liquid medium of DN 15—6000mm. It can measure even liquids such as water, sea water, oil, and slurry.

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

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Kerosene Gasoline/ Kerosene Flow Meter

A kerosene flow meter is a flow meter that can be used to measure the flow of kerosene. Kerosene is a common oil in industrial production. It is an organic solvent and has no electrical conductivity. Similar to diesel gasoline.

If it is not conductive, it cannot be measured with an electromagnetic flowmeter. Select the appropriate flowmeter according to the size of the flow and the size of the pipeline. From the perspective of medium, it can be measured by liquid turbine flowmeter, vortex flowmeter, oval gear flowmeter, mass flowmeter, orifice flowmeter, and rotameter. Which one is better in practice needs to be selected according to the actual parameters of the site.

Kerosene Gasoline

Pure kerosene is colorless and transparent liquid, pale yellow when it contains impurities. Slightly smelly. The boiling range is 180-310°C (not absolute, it needs to be changed according to the specific situation during production). The average molecular weight is between 200-250.

The melting point is above -40℃. The kinematic viscosity at 40℃ is 1.0~2.0mm2/s. Insoluble in water, soluble in alcohol and other organic solvents. volatile. Flammable. After volatilization, it mixes with air to form an explosive gas mixture. Complete combustion, sufficient brightness, stable flame, no black smoke, no lights, no obvious odor, and little environmental pollution.

Kerosene is miscible with petroleum-based solvents. The solubility of water is very small, and the solubility of kerosene containing aromatic hydrocarbons in water is greater than that of aliphatic hydrocarbon kerosene. Kerosene can dissolve anhydrous ethanol. Mixtures with alcohols separate at low temperatures in the presence of water.

Different uses of kerosene have different chemical compositions. The same kerosene has different physical and chemical properties due to different preparation methods and origins.

The quality of various kinds of kerosene decreases in turn: power kerosene, solvent kerosene, lamp kerosene, fuel kerosene, and washing kerosene.

Kerosene is a high-boiling hydrocarbon mixture with C11-C17 carbon atoms. The main components are saturated hydrocarbons, and also contain unsaturated hydrocarbons and aromatic hydrocarbons. Due to different varieties, it contains 28-48% alkanes, 20-50% or 8%-15% aromatic hydrocarbons, 1-6% unsaturated hydrocarbons, and 17-44% cyclic hydrocarbons. The number of carbon atoms is 11-16. In addition, there are a small amount of impurities, such as sulfides (thiols), colloids, etc. The sulfur content is 0.04% to 0.10%. Free of benzene, diolefins and cracked fractions.

Mainly used for lighting and fuel for various blowtorches, gas lamps, vaporization furnaces and kerosene furnaces; it can also be used as detergent for mechanical parts, solvent for rubber and pharmaceutical industries, ink thinner, cracking raw material for organic chemicals; glass ceramics Industrial, aluminum plate rolling, chemical heat treatment of metal workpiece surfaces and other process oils; some kerosene is also used to make thermometers. According to the use, it can be divided into power kerosene, lighting kerosene, etc.

Extended reading: Quantitative control with turbine flowmeter

Types of Kerosene Flow Meters

Which flowmeter should I choose to measure kerosene flow? We need to understand the corresponding situation of the measurement conditions first. The type of flowmeter that can be selected for different flow ranges can also be different.

For common measurement sites, trade measurement is generally involved. Our recommendation is to use a liquid waist wheel flowmeter or an oval gear flowmeter. Because volumetric measurement is used, this method measures accuracy. Especially suitable for trade settlement scenarios.

The second is the choice of liquid turbine flowmeter. Turbine flow meters are measured by the rotation of vanes inside the flow. Compared with the volumetric measurement method, the accuracy will be slightly less. But still maintain a stable 0.5 level of accuracy.

The measurement accuracy of other types of flowmeters, such as metal tube rotameter, orifice flowmeter, and vortex flowmeter, is significantly lower than that of the above two types of flowmeters. It is also optional if it is used for process control or internal monitoring.

Extended Reading: Summary Of Crude Oil Flow Measurement Options

Featured Kerosene Gasoline/ Kerosene Flow Meters

oil and gas flow meter

Every day, a large amount of oil and gas are transported back and forth, refined, and then transported, as well as custody transfer. Difficult oil and gas flow measurement challenges such as corrosive media and harsh environments are our daily work. This requires mature and safe technology. Through instrument measurement and display monitoring, safe and reliable operation can be achieved.

Many types of flow meters are used to measure oil and gas flow. Each type has its advantages and disadvantages. The following content discusses these advantages and disadvantages.

Read more about: Flow Meters for Measuring Oil and Gas

Diesel Fuel Flow Meters

Diesel Fuel flow meters are digital flow meters for liquid fuel consumption measurement.

Most widely used types are mechanical and digital inline fuel meters. Differential flow sensors are avilable. Like: the turbine, positive displacement (oval gear), Coriolis, and differential pressure flow meters.

Sino-Inst offers a variety of fuel flow meters for most fuels. Including diesel, bio-diesel, kerosene, gasonline, oil, heating oil, grease and certain chemicals. Sino-Instrument offers diesel fuel flow measurement solutions and free technical support. If you have any question for diesel fuel flow measurement, please contact us.

Read more about:

Frequently
Asked
Questions

The oil flow meter measures the volume or mass of oil, which can realize the mutual conversion of volume and mass.
There are many types of oil flow meters. Commonly used are turbine flowmeters and dimensional flowmeters.

Extended Reading: Rotameter vs Flow meter

Oil flow meter refers to a type of flow meter that can measure the volume or mass flow of oil. It can be widely used in flow measurement in petroleum, chemical, medical and health departments.

Extended Reading: Industrial petrol flow meters Types

Flowmeter is a professional automatic measuring instrument. Its main function is to measure the flow of fluid, and the measurement medium includes liquid, gas, steam, mixed slurry, solid dust, etc.

It is the special role of flowmeters, in the field of industrial automation, flowmeters and sensors are called the eyes of the automation system. The measurement results are transmitted to the upper computer system. The data is integrated and analyzed by the system. Then the preset scheme is applied to the upstream and downstream control systems to achieve the purpose of intelligent automatic control.

Extended Reading: Petroleum Flow Meter

Commonly used Fuel flowmeters are: turbine flowmeter, gear flowmeter, DP flowmeter and mass liuliangji

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

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

Sino-Inst supplies Kerosene Gasoline/ Kerosene Flow Meters, like: turbine flow meter. vortex flowmeter, thermal mass flow meter, and more.

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

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Upstream and Downstream Flow Straight Pipe Requirements-for Flowmeter Installation

Upstream and Downstream Flow Straight Pipe Requirements refer to the length of straight pipe before and after the installation location of the flowmeter.

In order to ensure that the fluid flow state is uniform in the pipeline, the flow field of the fluid can generally be stabilized. It is required that the straight pipe section before and after the installation position of the flowmeter should be long enough. Otherwise, it will cause inaccurate measurement.

The general rule of thumb for straight piping is a five-diameter length of piping upstream and three diameters downstream from the meter (measured from the center of the tube).

Next, we will detail the various flow meters Upstream and Downstream Flow Straight Pipe Requirements.

what is upstream and downstream flow?

For pipelines where fluid flows, we must first understand the upstream and downstream fluids when installing the flowmeter.

The direction of fluid entry is upstream. The direction of fluid discharge is downstream.

The straight pipe section of the flowmeter is the straight pipe section that requires a certain length of the water inlet and outlet of the flowmeter. That is, the pipe in that section needs to be straight. There can be no elbows, valves and the like. Generally, the upstream length requirement will be longer than the downstream length requirement.

Extended reading: Fluid flow meter types

10D Upstream and 5D Downstream

When users use the orifice flowmeter, they generally require 10D Upstream and 5D Downstream for the straight pipe sections before and after the orifice flowmeter. So what does this D stand for? Today I will briefly talk about it.

The D represents the diameter of the pipe. For the orifice plate in the orifice plate flowmeter, the minimum requirements for the front and rear straight pipe sections are 10D Upstream and 5D Downstream. If there is a pump or regulating valve in front of the orifice plate, then the requirements for the straight pipe section are greater.

Read more about: How to Calculate Pressure Drop in a Pipe?

Different Flow Meters Installation Rule of Thumb

Due to the limitation of the structure of the orifice plate flowmeter itself, its measurement accuracy is not high. There are a number of system reasons that can cause errors during installation. And the magnitude of this error cannot be estimated.

But by analyzing the factors that cause the error, the error can be reduced.

When the orifice flow measurement system is installed and used, it must meet the following technical requirements:

  • When the orifice plate is installed, the center of its opening and the center axis of the pipe are concentric. And its end face is perpendicular to the axis of the pipe.
  • The axis of the pressure taking hole on the orifice plate and the downstream side meets the requirement that the distance from the orifice plate and the downstream end face is 25.4±0.8mm.
  • The axis of the pressure taking hole should be perpendicular to the axis of the inner cylinder of the 2D measuring tube length on the downstream side of the orifice plate. The included angle between the axis of the pressure taking hole and the outward inclination angle of the two ends of the orifice plate shall not be greater than 3 degrees. The diameter of the pressure hole should not be greater than 0.08D.
  • Orifice plate installation requires front and rear straight pipe sections. The length of the straight pipe section is related to the form and diameter ratio β of the local resistance member on the upstream side of the orifice plate. Its determination method is as follows:

Table. Required Straight Run Lengths Between Orifice Plate and Choke (No Flow Conditioner)
(The value is expressed in multiples of the pipe diameter D)

Diameter ratio β Upstream side of orifice plate (inlet)
Single 90° Elbow
Two 90° elbows
In any plane
(S30D)
Two 90° elbows in the same plane, S shape
(30D≥S10D)
Two 90° elbows in the vertical plane,
(30D≥S≥5D)
Two 90° elbows on the same plane,
(30D≥S≥5D)
Two 9° elbows in the vertical plane, (5D>S) Single 90° Tee Two 45° elbows on the same plane with a single 45° elbow, S shape (S>22D)
A B A B A B A B A B A B A B
0.2 6 3 10 10 10 10 19 18 34 17 9 3 5 5
0.4 16 3 10 10 10 10 44 18 50 25 9 3 30 9
0.5 22 9 18 10 22 10 44 18 75 34 19 9 30 9
0.6 42 13 30 18 42 18 44 18 65 25 29 18 30 18
0.67 44 20 44 18 44 20 44 20 60 10 36 18 44 18
0.75 44 20 44 18 44 22 44 20 75 18 44 18 44 18

Diameter ratio β Upstream side of orifice plate (inlet) Downstream side of orifice (outlet)
Reducers change from 2D to D over a length of 1.5D to 3D The expanding tube changes from 0.5D to D within the length of D to 2D Full bore ball valve or gate valve fully open Symmetric shrink tube Thermometer sleeve or socket diameter less than 0.03D All Front Choke Types and Density Meter Sleeves
A B A B A B A B A B A B
0.2 5 5 16 8 12 6 30 15 5 3 4 2
0.4 5 5 16 8 12 6 30 15 5 3 6 3
0.5 6 5 18 9 12 6 30 15 5 3 6 3
0.6 9 5 22 11 14 7 30 15 5 3 7 3.5
0.67 12 6 27 14 18 9 30 15 5 3 7 3.5
0.75 22 11 38 19 24 12 30 15 5 3 8 4

Orifice flowmeters use flow regulators if possible in harsh installation conditions. The installation of the thermowell does not change the length of the small straight section on its upstream side.

The length of the small straight pipe section refers to the length between the upstream and downstream baffles of the orifice plate and the orifice plate. The length is measured from the downstream end of the curved portion of the adjacent elbow or tee or the downstream end of the tapered portion of the reducer and expander.

Extended reading: Liquid Bitumen/Asphalt Flow Meter

The length of the straight pipe section required by the differential pressure type is 10-62D. So the difference is big. This is because the required length of the straight pipe section depends on the opening ratio of the orifice plate (ratio d/D of the inner diameter D of the pipe to the inner diameter d of the orifice plate).

The opening ratio (ratio d/D of the inner diameter D of the pipe to the inner diameter d of the orifice plate) is larger. The longer the straight pipe section is required.
Conversely, the smaller the opening ratio, the shorter the straight pipe section required.

  • Difficult to give a general range
  • Helpful to use impulse lines on either side
  • Actual value depends on the type of upstream elements and the beta ratio
  • Beta ratio is defined as the diameter of the pipe orifice divided by the pipe diameter

Discover more about: Differential Pressure Flow Meters

The correct selection of the installation point of the electromagnetic flowmeter and the correct installation of the sensor are both very important links.

If there are minor mistakes in the installation process, the measurement accuracy will be affected. Heavy ones will affect the service life of the sensor. Even damage the sensor.

To improve the effects of eddy currents and current field deformities. There are certain requirements for the length of the straight pipes before and after the flowmeter. Otherwise, the measurement accuracy will be affected. A power converter can be installed. But installation must be avoided. Near or after regulating valves and half-open valves.

Extended Reading: Special Magnetic Flowmeter Installation situation

Pipe Installation Types Installation Instruction Diagram Standard-pipe Type
Front straight pipe L Back straight pipe S
Bent pipe Picture a 10D 5D
Horizontal pipe Picture b 5D 3D
Backward position of valve Picture C 10D 5D
Flaring pipe Picture d 10D 5D
Backward position of mercury Picture e 15D 2D
Shrinkage pipe Picture f 5D 2D
Mixed liquid Picture g 30D 3D

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

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.

Read more about: Vortex flow meter installation

Since the ultrasonic flowmeter is a velocity flowmeter, it has strict requirements on the flow characteristics of the medium. It must be ensured that the medium is in a laminar flow state during the detection of the transducer.

Therefore, whether it is a split ultrasonic flowmeter with a large pipe diameter or an integrated ultrasonic flowmeter with a small pipe diameter, it is necessary to ensure that there are enough straight pipe sections before and after the instrument before installation.

Although most of the velocity-type instruments have such regulations for the requirements of the straight pipe section, in order to ensure the good use of the ultrasonic flowmeter, the straight pipe section is most likely to be larger than the first 10D and the latter 5D standard, the bigger the better.

Extended Reading: Mechanical flow meter for diesel

Steady flow is helpful for ensuring measurement accuracy.

Standard requests for steady flow are:

1. The pipe should be far away from pump outlet and half-open valve. 10D to upstream and 5D to downstream. (D means outer diameter)

2. 30D to pump outlet and half-open valve.

The requirement of straight pipe section for turbine flowmeter installation is very important. Its detailed requirements are as follows:

  • The flowmeter has certain requirements on the upstream and downstream straight pipe sections at the installation point. Otherwise, the measurement accuracy will be affected.
  • If there is a reducer upstream of the installation point of the flowmeter, the upstream of the flowmeter should have an equal-diameter straight pipe section of not less than 15D (D is the diameter of the pipe). The downstream should have an equal-diameter straight pipe section of not less than 5D.
  • If there is a gradually expanding pipe upstream of the installation point of the flowmeter, there should be a straight pipe section of equal diameter not less than 18D (D is the diameter of the pipe) upstream of the flowmeter. There should be a straight pipe section of equal diameter no less than 5D downstream
  • If there is a 90° elbow or downlink joint upstream of the installation point of the flowmeter, there should be an equal diameter straight pipe section not less than 20D upstream of the flowmeter, and an equal diameter straight pipe section not less than 5D downstream.
  • If there is a 90° elbow on the same plane upstream of the installation point of the flowmeter, there should be an equal-diameter straight pipe section of not less than 25D upstream of the flowmeter, and an equal-diameter straight pipe section of not less than 5D downstream.

The oval gear flowmeter is a kind of instrument specially for measuring the flow of high-viscosity medium. The instrument plays a very important role in the industry, and the measurement accuracy is relatively high.

Oval gear flowmeter, this kind of flowmeter does not need to use straight pipe sections in the process of use.

This kind of measuring instrument can be easily installed at the valve outlet or turning point of the pipeline. Do not use the original straight pipe section at all. It is also a disguised way to save production costs during use.

The oval gear flowmeter should be cleaned before installation. If the liquid contains solid particles, a filter must be installed upstream of the pipeline; if it contains gas, an exhaust device should be installed.

The oval gear flowmeter does not have certain requirements for the front and rear straight pipe sections. It can be installed horizontally or vertically. During installation, the rotation axis of the oval gear of the flowmeter should be parallel to the ground.

Read more about: Various Types of Mass Flow and Volumetric Flow Meters

Coriolis flow meters directly measure mass flow and density. Their measurements are insensitive to fluid profiles and have virtually no installation restrictions. Therefore, no upstream and downstream straight runs are required.

The main guideline for a Coriolis sensor is to ensure that the sensor tube remains full. If installing in a vertical pipe. Make sure that fluids (liquids and slurries) flow up and gas flows down. And do not use the meter to align misaligned pipes.

Read more about: Mass Flow Meter Types

Read more about: Different Types of Flowmeters – Technical and Application Analysis


There are many professional organizations that provide guidance and standards for most flow techniques used. Some of them are ISA, ISO, API, AGA, ASME and ANSI.

When in doubt, it is recommended that you refer to these guides. As they have been tested and provide a good starting point for ensuring that the flowmeter is performing properly.

Some very common guidelines/standards are listed below:

Coriolis – ISO10790
Critical Nozzle – ISO9300
Differential Pressure – ISO5167
Electromagnetic – ISO6817
Positive Displacement – ISO2714
Thermal Mass – ISO14511
Turbine – ISO2715
Ultrasonic – ISO17089
Variable Area – ISO11605
Vortex – ISO/TR12764
ASME MFC-3M-2004
ASME MFC-6-2013
ASME MFC-11-2006
ASME MFC-5.1-2011
ASME MFC-16-2014

These are some general guidelines to consider when determining the right flowmeter placement for your application. By asking the right questions and having a good understanding of existing guidelines and standards, you should be able to take advantage of a very large investment in flow meters.

Frequently
Asked
Questions

For orifice plates, the linear travel required depends on the beta ratio of the entire installation and the type of upstream components in the pipe.

If you use a “standard monolithic” orifice plate with a beta of .4 on the upstream inlet side. The very large straight pipe diameter range required for the straight run is 20 and the downstream range for the straight is 10.

However, if you are using a .4beta conditioning orifice plate, the required range for straight pipe is 2-6 straight pipe diameters.

Ultrasonic flowmeter, the upstream is not less than 10 to 50 times the pipe diameter, and the downstream is not less than 5 times the pipe diameter

Extended reading: Flow meter totalizer calculation

The D represents the diameter of the pipe. For the orifice plate in the orifice plate flowmeter, the minimum requirements for the front and rear straight pipe sections are 10D Upstream and 5D Downstream. If there is a pump or regulating valve in front of the orifice plate, then the requirements for the straight pipe section are greater.

Read more about: Shop 101: Key Factors In Selecting A Pipe Flow Meter

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

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

If you have any questiones about Upstream and Downstream Flow Straight Pipe Requirements-for Flowmeter Installation, please contact us!

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

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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 Slurry is high moisture content, and industrial wastewater sludge contains toxic substances.

For challenging flow applications including suspended solids. Whether it’s wastewater treatment or mining. Electromagnetic flowmeters (commonly referred to as magnetic flowmeters) are a reliable and cost-effective method of accurate measurement. Magnetic flowmeters work well in Slurry due to their versatility and corrosion-resistant properties.

Featured Slurry Flow Meters

Industrial Slurry Flow

The measurement of industrial Slurry and sewage has been one of the difficult problems to be overcome by the measurement workers for many years. There are two main reasons for this.

One is the fluid characteristics: the medium is dirty, the solid-liquid dual phase, the composition is complex, and it is easy to adhere and deposit.

The second is the measurement characteristics: the field working conditions are harsh, the detection devices are easily damaged and difficult to maintain, and the reliability of the measurement instruments is high.

In recent years, with the continuous deepening of the low-cost strategy of Jinan Iron and Steel, the implementation of measures such as solid waste recycling and zero discharge of sewage. In the process, the iron-making dedusting water, the steel-making dedusting water, and the phosphorus-removing water (collectively referred to as industrial sludge water) are recycled to the sedimentation tank for filtration. The pump is pressurized and transported to the sintering plant for mixing and reuse. The accurate measurement of this industrial sludge water is directly related to the quality of the sinter.

For this reason, how to accurately measure industrial Slurry sewage has always been our topic of discussion.

Extended Reading: Differential Pressure (DP) Flow Meters Technology

What is the Best Flow Meter for Slurry?

Which sludge flowmeter is better to choose?
From the current measurement technology, it is more common to choose an electromagnetic flowmeter to measure sludge.
Sino-Inst considers electromagnetic flowmeter as Best Flow Meter for Slurry.

The properties of the sludge to be treated and the deep dewatering process of the sludge, the electromagnetic flowmeter has the following technical characteristics:

  1. It can measure the flow of almost all conductive liquids, silts, viscous materials and mud.
  2. A prerequisite for the measurement is that the medium must have a minimum conductivity.
  3. Temperature, pressure, density and viscosity do not affect the measurement results.

When measuring sludge, the type of electromagnetic flowmeter selected is the use of HC electrode, PTFE lining, one-piece type, 20% of the sludge is added with medicine and stirred into a sludge slurry (solid content is about 10%~15%) through pumping. on the pipeline.

In conclusion

  1. The electromagnetic flowmeter can be used for sludge with a solid content less than or equal to 15%, and the purpose of accurate and stable measurement in the slurry is achieved.
  2. The use of grounding flanges and a good grounding connection are necessary conditions to ensure the stable and reliable operation of the flowmeter.

Magnetic Inductive Flow Meter

Magnetic Inductive Flow Meter is a flow meter that measures the flow of conductive fluids. Abbreviated as EMF, also called Electromagnetic flowmeters. It is a kind of Volumetric flow meter. A magnetic flow meter measures the velocity of conductive liquids moving through a pipe or conduit. In the wastewater treatment industry, Magnetic Flow Meter is the best flow meter choice.

Magnetic flow meter working principle

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

Faraday’s Law states that the voltage generated is proportional to the movement of the flowing liquid. A conductor moving through a magnetic field produces an electric signal within the conductor. And the singal is proportional to the velocity of the water moving through the field. 

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

Magnetic flow meter principle – Faraday’s Formula

Faraday’s Formula
E is proportional to V x B x D where:

E = The voltage generated in a conductor
V = The velocity of the conductor
B = The magnetic field strength
D = The length of the conductor

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

As applied to the design of magnetic flow meters, Faraday’s Law indicates that:the signal voltage (E) is dependent on V, B, D.V is the average liquid velocity ;

B is the magnetic field strength ;

D is the length of the conductor ( which in this instance is the distance between the electrodes).

Extended reading: Flow meter totalizer calculation

Electromagnetic flowmeter to measure Slurry flow

Which sludge flowmeter is better to choose? In general, it is more common to choose an electromagnetic flowmeter to measure sludge.

  1. The electromagnetic flowmeter has no mechanical inertia and has a flexible response. It can measure the instantaneous pulsating flow, and can also measure the flow in both positive and negative directions.
  2. The output of the electromagnetic flowmeter is only proportional to the average flow rate of the measured medium. It is independent of the active state (laminar or turbulent) under a symmetric distribution. Therefore, the range of electromagnetic flowmeters is extremely wide. Its measurement scale can reach 100:1. Some even reach the operational flow scale of 1000:1.
  3. The sensor structure of the electromagnetic flowmeter is simple. There are no moving parts inside the measuring tube, nor any saving parts that impede fluid movement. So no additional pressure loss occurs when the fluid passes through the flowmeter. It is one of the flow meters with the lowest operating energy consumption in the flow meter.
  4. The caliber of industrial electromagnetic flowmeters is extremely wide. From a few millimeters to several meters, and there are real-flow calibration equipment with a diameter of 3m in China. It lays the foundation for the application and development of electromagnetic flowmeter.
  5. Electromagnetic flowmeter is a volume flow measurement surface. In the measurement process, it is not affected by the temperature, viscosity, density and conductivity (in a certain scale) of the measured medium. Therefore, the electromagnetic flowmeter only needs to be calibrated by water. It can be used to measure the flow of other conductive liquids.
  6. It can measure the flow rate of dirty medium, corrosive medium and suspended liquid-solid two-phase flow.

Frequently
Asked
Questions

Normally, the slipry will be piped. So, we want to measure slipry. Then you need to install the flowmeter on the slurry pipeline.
Ideally, an electromagnetic flowmeter is installed to measure the slippery flow.

Extended Reading: Guide: Magnetic Flowmeter Installation

Most of the time, we would recommend using an electromagnetic flowmeter to measure the flow of slurries.
However, this does not mean that other flow meters cannot be used for the flow of slurries.

Which flowmeter is best for use? This needs to be selected according to the actual measurement parameters.

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

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

Read more.

Totalizer flow meter is also called Totalizing flow meter. It refers to the totalizing function of the flow meter, or an instrument that can realize flow display and flow totalization.

Totalizer flow meter is also called Totalizing flow meter. It refers to the totalizing function of the flow meter, or an instrument that can realize flow display and flow totalization. The flow totalizer is used in conjunction with the flow sensor. The flow parameters can be measured and displayed, accumulated calculation, alarm, output, data acquisition and communication.

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Sino-Instrument offers over 50 Slurry Flow Meter for flow measurement.

About 50% of these are differential pressure flow meters,

40% is the magneitc liquid flow sensor, and 20% are Ultrasonic Transmitter and mass flow meter.

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

Sino-Instrument is a globally recognized supplier and manufacturer of Slurry Flow Meter instrumentation, located in China.

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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 of steam. Steam is a relatively special medium. With the change of working conditions (such as temperature, pressure). Superheated steam is often transformed into saturated steam, forming a vapor-liquid two-phase flow medium.

Steam is an important energy substance. For energy consumption calculation or cost accounting. An accurate metering of the steam consumed is usually required using a flow meter.

Steam Flow Meters for Sale

Inaccurate steam flow measurement is a common Requirement in the heating industry. The main reasons are as follows:

superheated steam

Steam is a relatively special medium. Generally speaking, steam refers to superheated steam. Superheated steam is a common power source. It is often used to drive steam turbines to rotate. And then drive the generator or centrifugal compressor to work.

Superheated steam is obtained by heating saturated steam. There is absolutely no droplet or liquid mist in it, and it is an actual gas.

The temperature and pressure parameters of superheated steam are two independent parameters. Its density should be determined by these two parameters.

After the superheated steam is transported over a long distance, it changes with the working conditions (such as temperature and pressure). Especially when the degree of superheat is not high, it will enter the saturated or supersaturated state from the superheated state due to the decrease of the heat loss temperature.

Converted to saturated steam or supersaturated steam with water droplets. The saturated steam is suddenly decompressed greatly. When a liquid expands adiabatically, it also turns into superheated steam. In this way, a vapor-liquid two-phase flow medium is formed.

Read more about: Condensate Flow Meter-Steam Condensate Flow Meter|Types & Selection Guide

Saturated Vapor

Steam that has not been heat treated is called saturated steam. It is colorless and odorless. Non-flammable and non-corrosive gases. Saturated steam has the following characteristics:

(1) There is a one-to-one correspondence between the temperature and pressure of saturated steam. There is only one independent variable between the two.

(2) Saturated steam is easy to condense. If there is heat loss during transmission. Droplets or mist form in the steam. and lead to a decrease in temperature and pressure. Steam containing liquid droplets or mist is called wet steam.

Strictly speaking, saturated steam contains more or less a two-phase fluid of liquid droplets or mist. Therefore, different states cannot be described by the same gas state equation.

The content of liquid droplets or mist in saturated steam reflects the quality of the steam. It is generally expressed by the parameter of dryness. The dryness of steam refers to the percentage of dry steam per unit volume of saturated steam. Indicated by “x”.

(3) It is difficult to accurately measure the flow rate of saturated steam. Because the dryness of saturated steam is difficult to guarantee. General flowmeters cannot accurately detect the flow rate of two-phase fluid. Fluctuations in steam pressure will cause changes in steam density. Additional errors will occur in the indication value of the flowmeter. .So in steam measurement, it is necessary to try to maintain the dryness of the steam at the measurement point to meet the requirements. If necessary, compensation measures should be taken to achieve accurate measurement.

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

Analysis of Steam Measurements

Flow meters are currently used to measure steam flow. The measurement medium refers to single-phase superheated steam or saturated steam.

For steam with frequently changing phase flow, there will definitely be inaccurate measurements.

The solution to this problem is to keep the steam superheated and minimize the water content of the steam.

For example, strengthen the insulation measures of steam pipelines and reduce the pressure loss of steam. to improve the measurement accuracy.

However, these methods cannot completely solve the problem of inaccurate steam flow measurement. The fundamental solution to this problem is to develop a flow meter that can measure two-phase flowing media.

There are many types of flow meters used to detect gas flow. The most common applications are velocity and volumetric flow meters. Their common feature is that they can only measure the volume flow under operating conditions continuously. The volume flow is again a function of the state.
The volume flow in the working state cannot exactly represent the actual flow.
In engineering, it is generally expressed as standard state volume flow or mass flow.
The so-called standard state volume is the volume of gas at 0°C and 1 standard atmosphere or the volume at 20°C and 1 standard atmosphere.

The case where mass flow is the unit of measurement. At present, when the scale gas flow meter is not used in many applications. The normal temperature and pressure of the selected gas are the design conditions. Convert the volume flow under the design state to standard volume flow or mass flow. Its conversion coefficient contains the factor of gas density. When the working state of the gas medium deviates from the design state, the flow indication value will have errors.

Furthermore the composition, content or temperature of the gaseous medium changes. It also affects flow measurement. Therefore, the measurement of steam flow needs to take compensation measures. In addition, the compensation factors due to the state change of the steam are also complicated.

The density of superheated steam is determined by the temperature and pressure of the steam.

And in different ranges of parameters, the expression of density is also different. cannot be represented by the same general formula. Therefore, a unified density calculation formula cannot be obtained.

The temperature and pressure compensation formulas can only be derived individually.
In the case of large temperature and pressure fluctuation range. Except for temperature and pressure compensation. Compensation for the gas expansion coefficient Σ also needs to be considered.

No matter what kind of flow meter is used to detect the flow of saturated steam. When working under conditions of steam pressure fluctuations, pressure compensation measures must be taken. This is because the steam density factor is included in the flow equation. When the operating conditions are inconsistent with the design conditions, the readings will have errors. The size of the error and the working pressure are related to the size of the design pressure deviation. A negative error will occur if P real > P set. Otherwise there will be a positive error.

The dryness condition of steam is an important condition related to whether the steam flow can be accurately measured. At present, the online steam dryness testing instrument is being developed. The application of the dryness meter to the steam flow measurement and compensation system will further improve the measurement accuracy. The following three measures should be taken at present:

  1. The pipeline for conveying steam must have good insulation measures to prevent heat loss.
  2. Drain the steam pipeline section by section, and set steam traps at the lowest part of the pipeline and the pipeline in front of the instrument to drain the condensed water in time.
  3. During the operation of the boiler, the phenomenon that the liquid level of the steam drum is too high should be avoided, and the large fluctuation of the load should be minimized.

Selection of Steam Flow Meters

There are 5 main factors to consider when choosing a flow meter for steam metering:
Characteristics of the fluid being measured, production process conditions, installation conditions, maintenance requirements, and characteristics of the flow meter.

Here, we focus on discussing the characteristics, installation conditions, maintenance requirements and several issues that should be paid attention to when choosing a flow meter.

At present, the instruments for measuring steam flow mainly include vortex flowmeter, differential pressure type (orifice plate, uniform velocity tube, elbow) flowmeter, split rotor flowmeter, Annubar flowmeter, float flowmeter, etc.

The differential pressure transmitter is used to measure the fluid, and the flow rate is calculated from the pressure difference generated before and after the throttling element due to the change of the flow rate when passing through the throttling element. The measurement principle of differential pressure flowmeters with different throttling elements is the same.

This measurement method is based on the flow continuity equation and the Bernoulli equation. The magnitude of the differential pressure is not only related to the flow. It is also related to the structural form of the throttling element or the physical properties of the fluid in the pipeline. Therefore, the flow calculation needs to consider the correction factor of various influencing factors.

The differential pressure flowmeter has a narrow measurement range. Since the differential pressure signal and the flow rate are in a square relationship, the general range is (3:1)~(4:1).

According to different applications and accuracy requirements, each throttling element has its own characteristics and advantages.

For example, the orifice plate has higher precision; compared with the orifice plate, the nozzle has the characteristics of stable outflow coefficient and lower pressure loss. Under the same working conditions, it is 30%~50% of the orifice plate. It is very suitable for the measurement of steam flow; the Venturi requires short straight pipe sections before and after.

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Vortex flowmeter is a new type of flowmeter successfully developed based on the principle of Karman vortex flow. Because it has the advantages that other flow meters cannot have both. It has developed rapidly since the 1970s. According to reports, the proportion of vortex flowmeters used in developed countries such as Japan, Europe and the United States has increased significantly. It has been widely used in various fields. Will dominate the flow meter in the future. It is an ideal substitute for orifice flowmeter.

It has the following characteristics:

  • Simple and firm structure, no moving parts, very reliable long-term operation;
  • The maintenance is very convenient and the installation cost is low;
  • The sensor does not directly contact the medium, with stable performance and long life;
  • Output pulse signal proportional to flow. No zero drift, high precision, and easy to network with computer;
  • Wide measurement range, turndown ratio up to 1:10;
  • Small pressure loss, low operating cost, and more energy-saving significance;
  • Within a certain range of Reynolds number, the output signal frequency is not affected by changes in the physical properties and composition of the fluid. The gauge factor is only related to the shape and size of the vortex generator. The volume flow of the fluid is measured without compensation. There is no need to re-calibrate the coefficient of the instrument after exchanging accessories;
  • Wide range of applications, both gas and liquid flow can be measured;
  • The verification period is 2 to 4 years.

The elbow flowmeter is actually a 90-degree standard elbow, and there is no flow sensor with a simpler structure.

With the development of the machining industry and the continuous improvement of industry standardization and standardized management, the standard mechanism elbows used as elbow sensors are becoming more and more cost-effective.

Its unique features are:

  • Simple structure and low price.
  • Elbow flowmeter sensors are wear-resistant and insensitive to trace wear.
  • The installation is simple and can be installed by direct welding. The trouble of running and dripping on the spot is completely solved.
  • It has strong adaptability, wide measuring range, and the requirements for straight pipe sections are not strict. As long as the fluid flow in the pipeline that can be measured by orifice plate, vortex street, and uniform velocity tube flowmeter can be measured by elbow flowmeter. And in terms of high temperature resistance, high pressure resistance, impact resistance, vibration resistance, moisture resistance, dust resistance, etc., the elbow flowmeter is far superior to other flowmeters.
  • The range ratio of the elbow flowmeter can reach 1:10, for steam. Its applicable range is 0~70m/s. It can better meet the requirements of steam flow measurement.
  • Due to its special measurement principle, the elbow flowmeter does not have strict requirements on the straight pipe section in practical application. Generally, only the first 5D and the rear 2D are required. Far below the requirements of other flow measurement devices.
  • The elbow flowmeter has high accuracy and good repeatability. The measurement accuracy can reach 1.14%, and the repeatability accuracy can reach 0.2%. After one installation, it does not need to be disassembled repeatedly. Therefore, its installation accuracy can also be optimally guaranteed.
  • The most prominent feature of the elbow flowmeter is that it does not have any additional throttling parts or inserts. It can greatly reduce the power consumption of fluid transportation in the pipeline. It saves energy. It is especially beneficial for those measuring objects with large systems, large pipe diameters and low pressure heads. more obvious.

Frequently
Asked
Questions

How to measure the steam flow? Maybe everyone knows how to measure it with a flowmeter. Because there are many types of flowmeters on the market. I don’t know how to choose. There are liquids, gases, slurries and so on.
First, the temperature of the steam is relatively high. We have to choose a flowmeter that can withstand high temperature to measure. For example: V cone, orifice plate, Annubar, vortex flowmeter, etc. can be measured.

The commonly used flowmeters for steam flow measurement include differential pressure flowmeters, vortex flowmeters, rotor-type steam flowmeters, V-cone flowmeters, elbow flowmeters and flute uniform velocity flowmeters. The working principle and usage requirements of these steam flow meters are different.

The use of a steam flow meter can be used to directly measure the steam usage of a plant operating project.

This can be used to monitor the results of energy saving programs. And compare the efficiency of one project with another.

Steam can then be costed as a raw material at any stage of the production process, allowing the cost of individual product lines to be determined.

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The choice of Measuring Steam Flow and steam flow meter is very important. Accurately measuring steam flow is a need and a common concern in the production sector. With the development of the economy, the voice of improving the measurement level is getting louder and louder.

We should choose the appropriate flowmeter according to the actual measurement conditions.

The choice of Measuring Steam Flow and Steam Flow Meters has always been an industry challenge.

Sino-Inst, Manufacuturer for Steam Flow Measurement Flowmeters.

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

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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. Digital argon flowmeter and argon regulator are different. Argon regulator has the function of displaying and reducing pressure. Digital flow meter for argon gas cannot be decompressed and regulated. However, instantaneous, cumulative volume/mass flow can be displayed. And output the corresponding digital signal for flow monitoring system monitoring statistics.

Argon Gas

Argon is a rare gas widely used in industry. It is very inert in nature and neither burns nor supports combustion. In aircraft manufacturing, shipbuilding, atomic energy industry and machinery industry. When welding special metals, such as aluminum, magnesium, copper and its alloys and stainless steel, argon is often used as a welding shielding gas to prevent welding parts from being oxidized or nitrided by air.

  1. Aluminum industry. Used to replace air or nitrogen to create an inert atmosphere during aluminum manufacturing. Helps remove unwanted soluble gases during degassing. As well as removing dissolved hydrogen and other particles from molten aluminum.
  2. Steelmaking. Used to displace gases or vapors and prevent oxidation in processes. For stirring molten steel to maintain constant temperature and the same composition. Helps remove unwanted soluble gases during degassing. As a carrier gas, argon can be used to chromatographically determine the composition of a sample. Argon can also be used in the Argon Oxygen Decarburization (AOD) process used in stainless steel refining. The purpose is to remove carbon monoxide and reduce chromium losses.
  3. Metal processing. Argon is used as an inert shielding gas in welding. Provides oxygen- and nitrogen-free protection in the annealing and rolling of metals and alloys. As well as for flushing molten metal to eliminate porosity in castings.
  4. Welding shielding gas. Argon is used as a shielding gas during welding. Burnout of alloying elements and other welding defects resulting therefrom can be avoided. This makes the metallurgical reaction in the welding process simple and easy to control. to ensure high quality welding. The results show that under argon protection, the pores in the remelting zone are precipitation pores. Under open conditions, the pores in the remelting zone are precipitation pores and reactive pores.
  1. Other uses. Electronics, lighting, argon knife, etc.

Argon Flowmeters Types

There are actually many kinds of flow meters that can measure argon. Such as vortex flowmeter, thermal flowmeter, mass flowmeter, differential pressure flowmeter, etc.

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

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.

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

The differential pressure flow meter is measured by the working principle that there is a certain relationship between the pressure difference and the flow rate when the medium fluid flows through the throttling device. Differential pressure (DP) flow meters are the most widely used form of flow measurement products today. Including: integrated orifice flowmeter, average velocity tube flowmeter, venturi tube, wedge flowmeter, underwater flowmeter, orifice plate, orifice carrier assembly, nozzle flowmeter.

Extended Reading: Advantages and disadvantages of differential pressure flow meter

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.

Read more about: Types of biogas flow meters

Mass flow meter directly measures the mass flow of the medium passing through the flow meter. It can also measure the density, temperature and viscosity of the medium

Mass flow meter is a flow measuring instrument that measures the mass flow in the pipeline. The volume of a fluid is a function of fluid temperature and pressure and is a dependent variable. The quality of a fluid is a quantity that does not change with time, space temperature, and pressure.

Extended reading: Volumetric Flow Rate To Mass Flow Rate

Read more about: Applications Of Digital Gas Mass Flow Meters

Argon Flowmeter Regulator

Argon flowmeter pressure reducing valve, stable output pressure, good sealing performance and easy to use. The mother body is made of brass, and the outlet thread is M12X1RH(M).

It is suitable for gas flow monitoring in piping systems, laboratories, MIG/TIG gas shielded welding and other occasions. The input pressure of the flowmeter is set to 0.35mpa. The accuracy level is 4. The square protective cover makes the scales on all sides more clear and easy to read. The flow tube And the protective cover is made of impact-resistant composite material, which is safe and durable.

It can be used for gas pipelines in various high-purity gases, medical experiments, instrumentation and analysis, gas phase analysis, power plant equipment, petrochemical industry, gas control boxes, purging systems, heat treatment equipment, gas busbars, toxic gases, semiconductors and other industries system.

Extended Reading: Magnetic Battery Operated Flow Meter

Argon Gas Flow Meter for Sale

Frequently
Asked
Questions

The flow meter is a tool for measuring flow. The pressure reducing valve is mainly used to stabilize the pressure and keep the pressure within a certain range.

Extended reading: Liquid Bitumen/Asphalt Flow Meter

There are many types of argon flow meters. First, we need to choose a suitable flowmeter according to the actual argon pipeline parameters. Then install the flowmeter in the pipeline. Using an argon flow meter is simple. A typical argon gas flow meter has a local digital display. It also supports signal output, which can be used for remote monitoring.

Extended reading: Buy Digital Gas Flow Meters & Controllers For Air-O2-N2-CO2

The purchase of Argon regulator needs to consider the actual use parameters.

For example:
input pressure;
Export adjustment range;
nominal flow;
Installation connection size;
Outer diameter of output interface;
Configure pressure specifications: input and output, etc.

Extended reading: non contact flow meter

Most of our gas flow meters have a local digital display. Can display the instantaneous flow of gas, cumulative flow, etc.

Of course, there is also a pointer display. Then you need to read the flow value according to the dial scale.

Extended reading: Metal Tube Flow Meter-Variable Area Flow Meters Principle

Read more about: Flow Meter Selection Guide

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Sino-Instt offer over 10 Digital Flow Meter for Argon Gas, with Best Price.

A wide variety of Digital Flow Meter for Argon Gas 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 Digital Flow Meter for Argon Gas suppliers, located in China. CO2 flow meters products are most popular in North America, Mid East, and Eastern Europe.

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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 basic measure of thermal energy in commercial and residential buildings. BTU meters are used in chilled water systems in commercial, industrial and office buildings.

BTU Meter for Chilled Water is to install a pair of temperature sensors on the ascending pipe and descending pipe passing through the heat transfer fluid respectively. The flow meter is installed on the fluid inlet or return line. The integrator collects signals from flow and temperature sensors. Use the cumulative formula to calculate the amount of cold and heat obtained by the heat exchange system.

BTU Meter in Chilled Water System

BTU Meter for Chilled Water consists of a flow measurement sensor, two temperature sensors and a microprocessor based energy calculator.

The flow sensor should be installed in the chilled water return line, and the chilled water flow direction should be installed in a vertical or horizontal position.

Two temperature sensors. A sensor is installed on the return line. The second sensor is installed on the water supply line.

The thermal energy transferred from the cooling water to the consumer over a defined period of time is proportional to the temperature difference between the flow and return flow and the amount of cooling water flowing through.

Sino-Inst offers two types of BTU Meter for Chilled Water. One uses ultrasonic measurement technology (ultrasonic BTU meter). Another uses the electromagnetic principle (electromagnetic cold and heat meter).

Extended Reading: 3 inch (3″) Water Flow Meter

Ultrasonic BTU meter is an intelligent heat metering device. Realize accurate measurement of cold and heat. It is used in heating facilities with heat metering and charging such as central heating, central air conditioning and combined cooling and heating.

Working principle

The Ultrasonic BTU meter measures the liquid flow in a circular tube based on the velocity difference method.

This series of instruments adopts advanced micro-power digital design technology such as digital transmission, digital reception, digital analysis, and digital output. The meter is accurate in measurement, reliable in operation, and more suitable for the needs of industrial sites.

Converter forms are: wall-mounted, panel-mounted, integrated;

The sensor forms are: plug-in type, pipe segment type, and outer clamp type.

Extended Reading: Wireless Water Meter

Ultrasonic heat and cold meter product features:

  1. Transducer: As the main signal generating component in the ultrasonic heat meter. Imported piezoelectric ceramic sheets are used. Stable performance and good consistency. Ensure that the ultrasonic heat meter achieves high-precision measurement.
  2. Temperature sensor: PT1000 high-precision platinum resistance is used. And configure the precision measurement circuit. Guaranteed high-precision temperature measurement.
  3. Self-diagnosis function: the ultrasonic heat meter is in stable operation. In case of abnormal communication, insufficient power or human sabotage. The system will display the corresponding code. The system automatically saves the data. Wait for the troubleshooting to recover.
  4. Remote transmission and centralized control function: with M-BUS, 485 interface. It can realize remote data transmission and centralized control.
  5. Beautiful appearance, can be hung in any direction in four directions. Easy to read and easy to operate.
  6. Easy to install. It has the functions of dust-proof, moisture-proof, waterproof, anti-disassembly and vandalism.

To choose the right ultrasonic flowmeter.

Compared with other types of heat meters, the electromagnetic heat meter is more stable and reliable in measurement. The LCD screen simultaneously displays parameters such as cumulative heat, cumulative flow, instantaneous heat, instantaneous flow, inlet water temperature, outlet water temperature, and temperature difference.

The measurement flow range is wide, and the flow velocity can be arbitrarily set within the range of 0.3m/s ~ 10m/s. With pluggable EPROM, it can store flowmeter configuration parameters and flow and heat detection data. Data is not lost when power is lost.

Electromagnetic sensor polytetrafluoroethylene PTFE (130℃), polyperfluoroethylene propylene F46 (180℃), high temperature resistant silicone fluorine rubber (250℃) for users to choose.

The parameter units displayed on the LCD screen are:
The optional display units of instantaneous flow are: m3/h, m3/m, m3/s, L/h, L/m, L/s, G/h, G/m, G/s.
The optional display unit of cumulative flow is m3, L, G, etc.
Note: G is imperial unit: gallon.
The unit of temperature is °C, and the unit of heat is KJ;
The electromagnetic heat meter is equipped with RS485 (MODBUSE protocol) as standard, and HART protocol can also be selected.

Measurement principle:

The split type electromagnetic heat meter is based on the flow signal of the flow sensor in the system and the temperature signal of the supply and return water detected by the paired temperature sensor. And the time the water has flown calculates and displays the heat released or absorbed by the system. The heat is displayed in cumulative form, the unit is kWh, and the large display is 8 digits.

The calculation mathematical model is: Q=qmΔhdt

where:
Q—heat released: kJ;
qm—the mass of the heat-carrying liquid flowing through the heat meter: kg/s;
Δh—the difference between the specific enthalpy of the heat transfer liquid corresponding to the inlet temperature and the outlet temperature in the heat exchange circuit: kJ/kg;
t—time: s.

To choose the right electromagnetic flowmeter.

BTU Meter Installation in Chilled Water System

With the increase of large buildings and modern buildings, the cooling system has developed rapidly. The demand for cooling capacity of industry and its chemical industry has also promoted the development of central cooling. Central cooling means that the power plant uses the cooling medium (usually fresh water and salt water) to supply the cooling capacity of the refrigerator to the user. In order to manage and account for the operation of refrigeration equipment. Settling the cooling energy consumed by the user. It is necessary to measure the cooling capacity of the relevant nodes.

The method of measuring the cooling capacity of chilled water is the same as that of hot water. The amount of cooling supplied can be seen as negative heat. Just due to the low temperature of the fluid. lead to some differences in specific practices.

Extended reading: Magnetic water meter-ultrasonic water meter-mechanical water meter

For chilled water used in air conditioners, the water temperature level is generally 5-6 °C. The cold medium is fresh water. For cooling below 5°C, use brine or other cooling media. The cold measurement method of fresh water chilled water mostly adopts the measurement method based on mass flow as shown in the figure below.

In the flow measurement of chilled water, the electromagnetic flowmeter has obvious advantages, and its characteristics are as follows:

  • Magnetic flowmeter measurements are not affected by changes in fluid density, viscosity, temperature, pressure and conductivity.
  • The electromagnetic flowmeter measuring tube has no obstructing flow parts, no pressure loss, and low requirements for straight pipe sections.
  • The electromagnetic flowmeter sensor can be equipped with a ground electrode to achieve good grounding of the instrument.
  • The electromagnetic flowmeter sensor adopts advanced processing technology, so that the instrument has a good ability to resist negative pressure.

In addition to the electromagnetic flowmeter measurement, the ultrasonic flowmeter can also be used for measurement. Customers can choose according to on-site conditions.

Extended reading: Dam water level measurement

BTU Meter Calculation

The BTU (British Thermal Unit) is universally accepted as a unit of heat transfer measurement. The BTU is defined as the quantity of heat required to raise the temperature of one pound of water 1°F. The equation for heat transfer to a liquid is as follows:

Q=W(T2-T1)Cp

Q=Heat transfer per unit time (BTU/hr)
W=Mass flow rate (lb/hr)
T2=Outlet temperature (°F)
T1= Inlet temperature (°F)
Cp=Specific heat capacity (1.0 BTU/lb for water)

Tools: BTU Calculator & BTU Formulas For Water Circulating Heat Transfer

BTU Meter vs Flow Meter

What is a BTU Meter?

BTU meters are flow meters with temperature sensors added to measure the energy consumption of any liquid heating or cooling system. BTU meters are also known as energy meters, heat meters. Commonly used are electromagnetic energy meters and ultrasonic energy meters. It is widely used in online metering of central air-conditioning cooling and heating energy metering and heating network. It can also be used to measure the performance of energy conservation measures or the loss of system efficiency that affects revenue. Read more about: What is BTU?

What is a Flow Meter?

A flow meter (or flow sensor) is an instrument used to measure linear, nonlinear,mass or volumetric flow rate of a liquid or a gas.When choosing flow meters,one should consider such intangible factors as familiarity of plant personnel,their experience with calibration and maintenance, spare parts availability,and mean time between failure history, etc., at the particular plant site.

Extended reading: Ultrasonic water meter working principle

Frequently
Asked
Questions

Flow meters measure flow, and heat meters measure heat. The heat meter consists of an integrator (calculator), a flow meter, and a pair of temperature sensors. The first detection is the supply/return water temperature and flow rate, and then the integrator is used to calculate the heat. The basic principle is Q=Cm△t.

Extended Reading: Guide and Selection for Diesel Fuel Flow Meters

BTU Meter adds accessories such as thermometer and totalizer to the flowmeter. So the cost of BTU Meter will be higher than that of flow meter.
The price of the specific BTU Meter needs to be determined by the customer’s detailed measurement parameters.

Extended reading: Ultrasonic flow detectors types

BTU, short for British Thermal Unit, is a unit of measurement that shows how much energy your air conditioner uses to remove heat from your home in an hour. This may seem overly technical, but BTU is an important metric that can help you determine the type of air conditioner you need for a home of your size.

Extended reading:  Tri Clamp Sanitary Thermometers

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Sino-Inst offers over 10 BTU Meter for Chilled Water. About 50% of these are magnetic flow meters, 40% is the ultrasonic flow sensor, and 20% are other flow meter.

A wide variety of BTU Meter for Chilled Water options are available to you, such as free samples, paid samples.

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

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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 components within a high precision chamber capture the fluid. The rotational speed of the rotor is proportional to the flow rate. Rotation is caused by the flow of fluid. Mechanical flow meters rely on rotation to drive a magnetic coupling or direct gear train connected to a mechanical counter. Under the conditions of a given flow meter, the volume of this metering space is determined. Just measure the number of rotations of the rotor. The cumulative value of the volume of fluid passing through the flowmeter can then be obtained.

PD Flow Meters can be divided into oval gear flowmeters, scraper flowmeters, dual rotor flowmeters, rotary piston flowmeters, reciprocating piston flowmeters, disc flowmeters, liquid-sealed rotary drum flowmeters, etc.

Features of PD Flow Meters

Advantages

  • High measurement accuracy;
  • The installation pipeline conditions have no influence on the measurement accuracy;
  • Can be used for the measurement of high viscosity liquids;
  • wide range;
  • The direct-reading instrument can directly obtain the accumulation without external energy, and the total amount is clear and easy to operate.

Disadvantages

  • The structure is complex and the volume is huge;
  • The type, caliber, and working state of the medium to be tested are relatively limited;
  • Not suitable for high and low temperature occasions;
  • Most instruments are only suitable for clean single-phase fluids;
  • Generates noise and vibration.

Featured PD Flow Meters

PD Flow Meters are also known as positive displacement flow meters. It is mainly composed of measuring body and measuring part. The metering body consists of a shell and a movable body (rotor of the rotameter). The core part is the movable body, which is the moving part in the measurement process. Each measuring cavity formed by the movable body and the casing is a standard volume unit, which is used to measure the volume of the fluid to be measured.

Extended reading: Fluid flow meter types

The measuring part is actually a rotational speed or counting sensor. Magnetic material is embedded in the pinion extending out of one of the screws on the screw flowmeter. When the screw rotates, the sensor can identify the rotational speed of the screw through the magnetic effect. And convert it into a standard pulse signal or current signal. In this way, the flow can be directly displayed by the secondary instrument or collected and analyzed by the computer.

There are many types of positive displacement flow meters. They can be classified according to different principles. Usually, according to the structure of the measuring element, it is divided into rotor type, scraper type, rotary piston type, reciprocating piston type and diaphragm type.

Among them, the rotor type is the most commonly used. The common gear type, screw type, waist wheel type and egg wheel type flowmeter belong to the rotor type.

Extended reading: Positive Displacement Flow meter Technology

The interior of the positive displacement flowmeter is designed with a space that constitutes a certain volume. The rotor inside the flowmeter rotates under the action of the pressure of the fluid flowing from the inflow port.

With the rotation of the rotor, the fluid flows from the inflow port to the discharge port. At this time, during the rotation of the rotor, a certain volume space is formed between the rotor and the flowmeter housing. The fluid fills this space with the rotation of the rotor. It is continuously sent to the discharge port.

If the volume of the space is designed, the number of rotations of the rotor is measured. The volume given by the space can be obtained, thereby obtaining the volume of fluid flowing through.

Extended reading: Liquid mass flow controller

This fixed-displacement flow measurement method for positive displacement flowmeters can be traced back to the 18th century. It entered the stage of widespread commercial application in the 1930s.

In recent years, the sales of PD flow meters in some industrialized countries have exceeded 20%. In my country, it also accounts for about 20%. It is mainly used in the metering of petroleum-based media.

But because of its precise metering characteristics. In recent years, it has been rapidly expanded to chemical, food, medical and other sectors to accurately measure the total amount and flow of expensive media.

In the measurement of petroleum, an international standard (ISO/DIS 2714) for measurement systems using positive displacement flowmeters has been developed. Moreover, positive displacement flowmeters with high precision, long-term performance retention and high repeatability are also used as standard instruments for industrial flow measurement, calibrating and calibrating industrial instruments.

In short, due to the high accuracy of positive displacement flowmeters, they are often used to measure the flow of relatively expensive media. High viscosity media can be measured. Therefore, it is generally used for the measurement of high-viscosity liquids in petroleum, chemical, metallurgical and other industries.

Extended reading: How to choose a high viscosity flow meter?

Of course it is also suitable for measuring low viscosity liquid media. In addition, positive displacement flowmeters can also measure gases. At the same time, the installation of positive displacement flowmeter does not require the front and rear straight pipe sections.

Extended Reading: Liquid Turbine Flow Meter

The Sanitary Positive Displacement Flow Meter is made of stainless steel and is quickly connected by Tri-clamp. Can be used to measure viscous liquids in the food industry. Such as sweeteners, edible oil, palm oil, honey, fat, tallow, fat, syrup, molasses, etc.

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

Extended Reading: Mechanical oil flow meter

Positive Displacement Flowmeter Selection

The manufacturer generally specifies the flow range according to the type of the measured medium (mainly different viscosity), use characteristics (continuous use or intermittent use) and measurement accuracy.

In order to maintain good performance and long service life of the flowmeter. It is recommended to select 80% of the maximum flow rate of the flow meter when the maximum flow rate is used continuously.

If the manufacturer does not clearly specify the flow range according to the type of medium and the characteristics of use. The maximum flow rate for intermittent use can be 100% of the upper flow limit.

When used continuously, the maximum flow rate of medium viscosity liquid is 80% of the upper flow rate of the flowmeter. The maximum flow rate of low-viscosity and high-viscosity liquids is 50% to 60% of the upper flow rate of the flowmeter.

The fundamental error of most positive displacement flow meters is ±0.5%. The basic error of the higher precision flowmeter is ±(0.1%-0.2%). The oval gear flowmeter can reach ±0.05%. The basic error of the lower precision flowmeter (such as the elastic scraper flowmeter) is ±(1.0%-1.5%).

The accuracy of a positive displacement flowmeter is the fundamental error obtained under laboratory conditions. In actual use, field conditions often deviate from laboratory conditions, resulting in additional errors. The actual error should be the sum of the basic error and the additional error. When selecting and using, measures should be taken according to the on-site situation to ensure the measurement accuracy.

Extended reading: Crude Oil Measurement – Radar Level Meter Measuring Vaulted Buffer Tank

Positive displacement flowmeters rely on the fluid to push the measuring fittings, so the pressure loss is high. The pressure loss of a positive displacement flowmeter is larger than that of other types of flowmeters of the same diameter and flow. The pressure loss of general liquids is 20 to 100 kPa.

When measuring liquids with high vapor pressure, excessive pressure drop will cause cavitation. If cavitation exists for a long time, it will damage the flowmeter accessories. Some flowmeters that allow short-term overflow to 120% of the upper limit of measurement should pay more attention to this problem .

Extended reading: Orifice Plate Flow Meter

Fluid corrosiveness is a major factor in determining flowmeter material.

For various petroleum products, cast steel and cast iron are used.
For slightly corrosive chemical liquids and cold water, it is made of copper alloy.
Made of stainless steel for pure water, high temperature water, crude oil, asphalt, high temperature liquids, chemical liquids, food or food raw materials.

The corrosion resistance of positive displacement flowmeters is generally not strong. In the food and biopharmaceutical industries, due to hygiene requirements, flow meters are frequently sterilized. Fittings that come into contact with fluids must be made of stainless steel and other hygienic materials. They must be easily disassembled.

Generally speaking, the viscosity of various gases is similar. It has no effect on the performance of the flowmeter. The viscosity of liquids is quite different.

In order to adapt to the liquid with high viscosity, the positive displacement flowmeter has a structure with a large gap.

Although the volume-second flowmeter is affected by viscosity, it is less affected than differential pressure and float turbine flowmeters. Viscosity generally affects the measurement error, pressure loss and flow range of positive displacement flowmeters.

Extended reading: Ultrasonic Flow Meters Types & Technical Guide

When the flowmeter is used at higher temperatures, the maximum working pressure rating must be reduced. Sudden valve opening and closing can create water hammer effect. Shock force may exceed operating pressure. Shock force may also cause false readings. Buffer tank may be installed if necessary.

Temperature will not only affect the compressive strength of the flowmeter, but also affect the measurement accuracy. Reduced structural clearance can jam moving parts. Therefore, when used at higher temperatures, a dimensional clearance should be reserved to compensate.

Especially when different materials are used in combination, pay more attention to the difference in thermal expansion coefficient.

Changes in temperature also change the viscosity of the liquid, causing flow changes. It can be corrected by automatic temperature compensation, and there must be a suitable preheating time before use, and observe whether it can operate normally.

Extended reading: Heating Oil Flowmeters

Usually the compressibility of liquids is negligible, however, compressibility should not be neglected when measuring oil with high accuracy.

For example, when the pressure of heavy oil rises from 0.5 MPa to 6 MPa, the volume is compressed by 0.45%. LPG is more compressible.

Gases are highly compressible, and their volume decreases at low pressures in proportion to pressure increases. Most positive displacement flow meters are used for low pressure conditions and can be directly converted.

However, under high pressure conditions, the volume reduction is not proportional to the pressure increase. The gas compressibility factor should be considered.

Extended Reading: Summary Of Crude Oil Flow Measurement Options

Extended Reading: Guide and Selection for Diesel Fuel Flow Meters

Sino-Inst, Manufacuturer for PD Flow Meters. For example: crude oil flowmeter, diesel flowmeter, gasoline flowmeter.

Sino-Inst’s PD 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.

Extended reading: Hydraulic oil flow measurement solutions.

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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 oil, and residual fuel oil. Specifically include: 0# diesel, -10# diesel, 20# heavy diesel, 4# fuel oil, 120# fuel oil, 180# fuel oil, 380# fuel oil, etc.
Therefore, select the appropriate flow meter to monitor the fuel flow and manage the fuel filling or consumption. This is important for controlling fuel costs.

At present, ships are in the process of refueling, especially for heavy fuel oil. The traditional method of measuring tank capacity is used to calculate the quantity of fuel oil. This method is very cumbersome and the accuracy is not high. And if the fuel flow meter is used, the above shortcomings can be well overcome.

There are many kinds of flowmeters on the market now, which makes it difficult for designers to choose their models. Different types of flowmeters have different characteristics. When choosing a suitable flowmeter according to the characteristics of the ship’s fuel oil, good test results can be achieved.

Instruments that measure the flow or total volume in pipe flow or open channel flow are collectively referred to as flow meters. There are many types of flow measurement methods and meters. The measuring principle, structural characteristics, scope of application and method of use are different.

Up to now, there are more than 60 types of flow meters available for industrial use. Because so far, there is no flow meter that can be used for any fluid, any range, any flow state, and any use condition.

There are many ways to classify flow meters. According to different classification principles, the classification methods are also different. Classified by principle, flow meters can be divided into three types: volumetric, velocity and differential pressure.

One of the more popular classification methods is from the measurement method and structure classification. It can be divided into: differential pressure flowmeter, positive displacement flowmeter, float flowmeter, impeller flowmeter, electromagnetic flowmeter, fluid oscillating flowmeter, ultrasonic flowmeter, mass flowmeter, plug-in flowmeter, open channel flowmeter There are 11 categories with other flow meters.

Read more about:

Precautions for flowmeter selection

  1. The performance of the flow meter

The performance of the flowmeter is embodied in the flow range, linearity, repeatability and accuracy.

The flow rate range is the range defined by the minimum flow rate and the maximum flow rate. When selecting the type, pay attention that the flowmeter cannot exceed this range under normal use conditions.

Linearity indicates the degree of consistency between the flow characteristic curve and the specified straight line in the entire flow range. According to this feature, the flowmeter output can be divided into linear and nonlinear square roots.

The non-linear error has a great influence on the pulse output type flowmeter with a large flow range. Repeatability refers to the consistency of the results obtained from multiple measurements of the same measured under the premise of the same conditions.

Generally, the higher the repeatability, the more concentrated the measurement value. Accuracy refers to the degree of agreement between the measured value and the actual value.

The lower the accuracy of the meter, the greater the error. The greater the deviation between the measured value and the actual value. When determining the accuracy, it should be selected according to the accuracy requirements of the actual measurement.

Extended Reading: Mechanical flow meter for diesel

  1. Working conditions

The working conditions that affect the flowmeter measurement mainly include temperature and electromagnetic interference.

The volumetric flowmeter uses a constant volume chamber to measure the flow rate. The material of the mechanical parts constituting the chamber is generally made of steel.

It becomes brittle when the temperature is low, and expands when the temperature is high. The pressure is limited at low temperatures.

For example, the twin-screw flowmeter in the fuel viscosity unit of the main engine on the actual ship. The rotor is often stuck during the light-to-heavy oil conversion. This is the reason.

In addition to the above and other conditions, it should be considered. Because of the particularity of the ship’s working environment, it is different from land. When choosing a flowmeter for a ship, it should also be combined with the actual working environment of the ship. Consider other factors that may affect the flowmeter. .

Ships are inevitably affected by many factors when sailing on the water, such as vibration, roll, impact, erosion, and sudden changes in climate. The operating environment is quite harsh. In order to ensure that the instrument can operate reliably and accurately in actual use, marine requirements must be considered when selecting models.

  1. Installation conditions

The installation conditions depend on the requirements of the site space and orientation. Specific instruments have special requirements. Therefore, the installation conditions should be given full attention.

For example, a positive displacement flow meter often requires the installation direction and flow direction of the sensor to be horizontal, vertical and horizontal respectively.
Positive displacement flow meters are sensitive to impurities and require filtration accuracy. Sometimes a filter device is needed. The float type flowmeter is more sensitive to the flow rate. Therefore, in order to eliminate the influence on the measurement. When limited by space, there are also flow regulators. Therefore, the space and orientation of the work site must be considered during installation.

Extended reading: Orifice Plate Flow Meter

Selection of Fuel Flow Meter for Boat

  1. Fuel performance

Fuel oil is a mixed liquid whose viscosity changes greatly with temperature, and there are many impurities in it.
Generally, when fuel oil is installed, it is realized through a closed delivery pipeline. The type of fuel generally installed on real ships is F120, and its density at 20°C is 981.6㎏/m3.

Combine these properties of fuel. Compared with the performance analysis of various flowmeters introduced above. Although volumetric flowmeters and turbine flowmeters have high accuracy, they have high requirements for fluid cleanliness. Electromagnetic flowmeters are only suitable for conductive liquids, so they are not applicable here. Coriolis mass flow meters can be used, but the cost is higher. Differential pressure flow meters are also optional. However, it is necessary to cooperate with a differential pressure transmitter for flow measurement and control.

  1. Working conditions of fuel flow meter

When the fuel flow meter is working, the temperature of the fuel passing through the flow meter is about 40°C. The agreed pump speed is 12m3/h, and the agreed maximum pump pressure is 0.4MPa. The amount of fuel added this time is 240t.

According to these few data, in the further flowmeter selection. Float flow meters should also be excluded. According to the characteristics of the float flowmeter, set up and measure the small flow of fluid. However, when the fuel is installed, the quantity is too large and it is not suitable for selection.

The vortex flowmeter works by using the principle of fluid oscillation. Avoid strong vibration when installing the sensor. However, according to the working conditions of the ship, the vibration and noise are very large. If a vortex flowmeter is selected, the measurement accuracy will be greatly affected in actual use.

It can be generally determined that both the differential pressure flowmeter and the ultrasonic flowmeter meet the requirements. Also, gear flow meters, mass flow meters, etc. These types of flow meters have a wide range of applications and are suitable for a variety of liquids.

Extended Reading: Guide and Selection for Diesel Fuel Flow Meters

Featured Fuel Flow Meter for Boat

The intelligent liquid turbine flowmeter is a new type of intelligent instrument that integrates the turbine flow sensor and display integration, which is developed by using advanced ultra-low power single-chip microcomputer technology. It has a compact structure, intuitive and clear reading, and high reliability. Not subject to external power supply. Obvious advantages such as lightning resistance and low cost.

Turbine Digital Flow Meter is widely used to measure the corrosion of stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3, and cemented carbide in closed pipelines, and there is no fiber, particles and other impurities. Liquids with kinematic viscosity less than 5×10-6m2/s at working temperature, and liquids with kinematic viscosity greater than 5×10-6m2/s. The flowmeter can be used after real liquid calibration. If matched with a display instrument with special functions. It can also carry out quantitative control, over-quantity alarm, and so on. It is an ideal instrument for flow measurement and energy saving.

A Cylinder gear flow meter is a micro digital positive displacement flow meter. Can measure very small flow rates and quantify small volumes of liquid. High and low-temperature resistance (-196℃-200℃).

Cylinder Gear flow meter is a type of positive displacement flow transmitter. It is a high-precision transmitter for measuring volumetric flow. With the flow of the medium, the gears mesh and rotate. Under the action of fluid flow. Measure the number of revolutions of the gear to know the flow of liquid and liquid flowing through the instrument. It is especially suitable for the flow measurement of heavy oil, polyvinyl alcohol, grease, and other high-viscosity media. It can measure the viscosity of Fluid up to 10000Pa.s.

Oval gear flow meter is one of the typical positive displacement flow meters. Measure the flow of liquid filling the pipeline under a certain pressure.

Oval gear flow meter is a pointer display type positive displacement flowmeter. The word wheel accumulates counting, and can be equipped with a zero return device. Oval gear flowmeters are widely used in liquid flow control in various industrial fields. Applicable to various types of liquid measurement, such as crude oil, diesel, gasoline, etc. Choose different manufacturing materials, such as crude oil, diesel, gasoline, etc. can be measured.

PD Flow Meter is referred to as positive displacement flowmeter. Helical Gear-PD Flow Meter is also called, spiral double rotor flowmeter, LLT, LZ double rotor flowmeter or UF-Ⅱ spiral rotor flowmeter.

As a high-precision flow meter, PD Flow Meter has an accuracy of 0.2 level. It is especially suitable for the measurement of industrial liquids such as crude oil, refined oil and light hydrocarbons. It is a new generation volumetric flowmeter. Because it uses a pair of spiral rotors with special teeth, it is also called “Helical Gear Flowmeter”.

Marine Fuel Mass Flow Meter (MFM)

Mass flow meter directly measures the mass flow of the medium passing through the flow meter. It can also measure the density, temperature and viscosity of the medium

The Singapore Standards Committee issued the new Singapore Standard SS6481-Marine Fuel Mass Flow Meter (MFM) Usage Guidelines. To support the shipping industry’s formal implementation of the “Sulfur Restriction Order” from January 1, 2020 to improve the low-sulfur fuel system. And Guidelines for improving and regulating MFM fuel filling behavior.

Regarding Singapore’s new SS6481-Marine Fuel Mass Flow Meter (MFM) Code of Conduct. The Director of the Technical Committee for Bunkering (Chairman, Technical Committee for Bunkering) Seah Khen Hee pointed out——
“Metrology and system integrity are the dual foundations of SS648. It is the foundation of MFM system approval and fuel metering and handover procedures.”

Extended reading:

Singapore launches enhanced mass-flow metering standard

Sino-Inst, Manufacuturer for Fuel Flow Meter for Boat. For example: crude oil flowmeter, diesel flowmeter, gasoline flowmeter.

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

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