A flowmeter is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. Selecting a Flow Meter The basis of good flowmeter selection is a clear understanding of the requirements of the particular application. Therefore, time should be invested in fully evaluating the nature of the process fluid and of the overall installation.
Measuring the flow of liquids is a critical need in many industrial plants. In some operations, the ability to conduct accurate flow measurements is so important that it can make the difference between making a profit or taking a loss. In other cases, inaccurate flow measurements or failure to take measurements can cause serious (or even disastrous) results.
Measuring the flow of liquids is a critical need in many industrial plants. In some operations, the ability to conduct accurate flow measurements is so important that it can make the difference between making a profit or taking a loss. In other cases, inaccurate flow measurements or failure to take measurements can cause serious (or even disastrous) results.
With
most liquid flow measurement instruments, the flow rate is determined
inferentially by measuring the liquid's velocity or the change in kinetic
energy. Velocity depends on the pressure differential that is forcing the
liquid through a pipe or conduit. Because the pipe's cross-sectional area is
known and remains constant, the average velocity is an indication of the flow
rate.
Here are some key questions which need to answered before selecting a flow meter:
Here are some key questions which need to answered before selecting a flow meter:
- What is the fluid being measured by the flow meter or flowmeters (air,water,etc…)?
- Do you require rate measurement and/or totaliser from the flow meter?
- If the liquid is not water, what viscosity is the liquid?
- Is the fluid clean?
- Do you require a local display on the flow meter or do you need an electronic signal output?
- What is the minimum and maximum flow rate for the flow meter?
- What is the minimum and maximum process pressure?
- What is the minimum and maximum process temperature?
- Is the fluid chemically compatible with the flow meter wetted parts?
- If this is a process application, what is the size of the pipe?
Type and model Of Flow Meter
Ultrasonic Flow Meters
Ultrasonic flow meter is a type of flow meter is widely used in industry to measure the flow characteristics of the fluid from the flow velocity, flow capacity, and the total amount of fluid flowing. In addition to measuring the flow properties of the fluid Ultrasonic flow meter can be combined to measure the calories of a fluid by add.... read more
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Insertion flow sensors a wide flow range and long life and can be installed or serviced without shutting down the line by means of a 2” full-port isolation valve that comes with a nipple for installation on the pipe fitting.... read more.... | |
Clamp-on Ultrasonic Flow meters are installed simply by applying coupling compound on the bottom of the transducers and strapping them to the outside of the pipe. Clamp on Ultrasonic Flow meters are internationally known for their simple and convenient installation and low maintenance characteristics. read more.....
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Variable Area Flow Meters
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Flow switch
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