Flowmeter

n. instrument which measures the rate of liquid flowing through a pipe

Flow measurement is the quantification of bulk fluid or gas movement. It can be measured in a variety of ways. Dependent on the quantity measured different symbols are used. The volumetric flow rate is usually given the symbol and the mass flow rate the symbol .
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Flowmeter /flow·me·ter/ an apparatus for measuring the rate of flow of liquids or gases, often named for the method employed, e.g., ultrasound f. [more]Flowmeter - Community and Resources

A gauge indicating the velocity of wastewater moving through a treatment plant or of any liquid moving through various industrial processes.

flowmeter
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