Problems with pressure transmitters measuring pulsating pressure
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There is a project that requires measuring the pressure in the pump outlet pipeline. Could pressure fluctuations affect the selection of pressure transducers? If threaded installation is used, what additional accessories are needed? Is it feasible to use flange mounting? How far from the pump outlet can pulsation pressure be ignored? Thank you
It should work! Pulsating pressure gauges also come with flanges
Pump outlet --- pressure gauge ---- check valve ---- globe valve. This is the order of installation. For a single-flange pulse-type pressure transmitter, it is recommended to install it at a distance of 2-3 meters; if it is too close to the variable-frequency pump, there will be significant fluctuations, while if it is too far away, there will be considerable lag. Consider this carefully before making a decision.
It is worth exploring and studying how far away from the pump outlet the pressure transmitter should be installed; I’ll go look for some information to learn more about it :P
The pressure gauge really wears out very quickly
Add buffer tanks or U-bends when necessary.
For piston pumps, install the damping bend at a distance, preferably in a location where pressure fluctuations are minimal; for centrifugal pumps, they can be installed as usual!
Add a damping screw; it’s best to use a stainless steel diaphragm