Ask the experts: How to determine the forward and reverse rotation of a canned motor pump
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There is a Sea-Meccanique shielded pump in the factory; the inlet is open while the outlet is closed. After draining it, pressure builds up but it drops as soon as the pump starts running. The same thing happens even after adjusting the phase of the power supply – it’s impossible to tell whether the pump is rotating in forward or reverse direction. There’s no TRG gauge like the one on Empire pumps to help with this! I would like to ask the experts how to determine whether this pump is rotating in the correct direction
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Why not set an outlet pressure? I guess you didn’t empty it completely
Outlet pressure, flow rate, motor current, and abnormal noises
The wiring electrician can confirm that the voltage drop issue isn’t related to the polarity
There is also outlet pressure and flow rate; low pressure and low flow rate indicate reverse rotation, while normal pressure and flow rate indicate forward rotation.
Mistake – I thought it was a magnetic pump!
This post was last edited by ylb913 on 2016-5-10 20:10. Oops, I mistook it for a magnetic pump! ——I didn’t notice that I replied three times; it’s a problem with the UC browser on my phone.