List of Questions and answers on Flow Measuring Devices used in flow measurement.
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State the relationship which exists between flow and differential pressure.
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What is a primary flow device? What are four commonly used primary
devices in process plant flow measurement applications? -
What is the purpose of a three valve manifold in a typical flow
measurement? Describe the sequence of operation of the three valve
manifold when the flow transmitter has to be removed from service. -
Why is the selection of the type of pressure tap important to the final flow
metering installation performance (i.e. differential pressure range, etc). -
What is the major advantage and application of the following primary
devices:
a) venturi tubes
b) flow nozzles, and
c) elbow taps?
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