*AO acid AN flow meter
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Please recommend a flow meter for measuring **, where the liquid is at no pressure and flows due to gravity
Using an electromagnetic flowmeter should be great; it has no pressure loss, offers high measurement accuracy, and there is no need to worry about medium corrosion (the material used in conventional electromagnetic flowmeters is sufficient).
The HKE electromagnetic flowmeter will do
An electromagnetic flowmeter will do; Rosemount and E+H are both acceptable
Electromagnetic flowmeters are very accurate; their performance is roughly on par with that of mass flowmeters. However, for flow measurement, the pipe must be filled completely. In the case of flow driven by gravity, a valve needs to be installed after the flowmeter to regulate the flow
For ease of reference, the laminar mass flow rate can be checked