Flow Switch : What is it ?
Flow Switch is a mechanical switch that is switched on or off in response to the flow or non-flow of a fluid such as air or water. The switch typically operates
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Flow Measurement
Turbine Flow Meter Verification
Question : ” We have a turbine flow meter, gas chromotograph & flow computer installed at our site, similar units installed at GAIL terminal also. How metering can be done
Types of Variable Area Flow Meters
Variable Area Flow Meters In this type of orifice meter, there is a fixed aperture and flow is indicated by a drop in differential pressure. In area meter, there is
Flow Transmitters Questions and Answers
Flow Transmitters Questions and Answers What is CFM, SCFM, ACFM, Am³/hr and N m³/hr? CFM is a unit of flow rate (cubic feet per minute) SCFM is a unit of
Turbine Flow meter Coefficient and Scaling Factor
Turbine Flow meter Coefficient and Scaling Factor A digital turbine flowmeter generates 10 pulses per gallon of liquid passing through it. Determine the meter coefficient and calculate the scaling factor
Area Velocity Flow Meter Principle
Measure open channel flow without a flume or weir. An Area-Velocity Flow Meter continuously measures both Level and Velocity to calculate flow volume in an open channel or pipe. The
Transit Time Flowmeter Principle
Transit Time flowmeters measure the time it takes for an ultrasonic signal transmitted from one transducer to cross a pipe and be received by a second transducer. Upstream and downstream
Flow Nozzle Principle
When a flow nozzle is placed in a pipe carrying whose rate of flow is to be measured, the flow nozzle causes a pressure drop which varies with the flow
Flow Standards
Most forms of continuous flow measurement are inferential; that is, we measure flow indirectly by measuring some other variable (such as pressure, voltage, or frequency) directly. With this in mind,
Interferometer Principle
Interferometer is a precise instrument for flow visualization. The variation of refractive index of the flowing gas with density is the basic principle used in theses system. The principle of