Flow meters work by regulating the volume of gas, liquid, steam, or other material that moves in or around their sensors. While they all follow the same purpose, there are several means to do it, so they pick from many flow meter varieties.

This article will help you pick the flow meter to give reliable and repeatable measures for special uses, whether for overall research, method control or regulating.

Flowmeter types

Positive Displacement

Positive displacement flow meters are exclusive as they are the only meter to estimate the exact volume direct. All other kinds gather the flow rate by making different measurement types and relating it to the flow rate. With PD meters, the output signal is straight linked to the volume moving by the meter. Holds bi-rotor types, nutating disc, reciprocating piston, and oscillating or rotary piston.

Mass

The output sign is direct linked to the mass moving in the meter.

Thermal and Coriolis flowmeters fall into this section.

Velocity

The output sign is straight linked to the speed passing by the meter.

• Electromagnetic
• Ultrasonic
• Turbine, Propeller, and Paddle Wheel
• Vortex Shedding
• Target
• Variable Area and Rotameter
• Orifice Plate, Open Channel, Flow Nozzle, Laminar, Venturi, and Pitot Tube

What type of flow meter is best?

There are no general flow meters that are fit for all purposes. Choosing the precise technology for your use needs writing a flow term that covers the meter's use. There usually are trade-offs with per meter kind, so grasping the critical terms will be crucial.

Things you must know:

• What is the Gas or Flow being regulated?
• Least and highest flow rates.
• What are the efficiency conditions?
• The liquid temperature and thickness.
• Fluid adaptability with the elements of the form (View our elements compatibility model)
• The highest pressure at the place.
• What is the pressure drop legal?
• Is the meter fixed in a dangerous place where dangerous gases may be present?
• Is the fluid flow constant or periodic?
• What kind of output signal or readout do you require?

Use your gathered data to reduce the technologies that you do not use (ex. Turbines do not work for thick fluids. Coriolis meters do not react fast much for injection flow, and Positive Displacement meters are not efficient for big pipe diameters like a 12-inch diameter line.). You will then have a ratio of the left technologies. 

Conclusion

Specific meters are priced based on their skills. It is better to find the kind of meter that suits your use before dealing with cost savings. Closely assess your acute states, such as low flow meter rates, high force or temperature, or the want to hold over a broad working area. If these requirements are crucial to you, do not use cheaply priced options outside of their abilities.