Does my pump seem to be working fine or is this noise and vibration on the gauge indicating a problem? The fluid is thermal oil, the centrifugal pump works at 3000 rpm.
I am suspecting it could be entrained air or limited suction flow.
If it is regarding limited suction flow, will decreasing the discharge valve opening help?
Could impurities in the line cause a noise like this? There is a 0.8mm strainer at the pump inlet but I have noticed smaller particles from the pipe welds etc.
Could it be misaligned coupling?
Does rotating the vane by hand help deaerate the pump? Any suggestions on a way to take out the air out of the pump?
Any other tips or suggestions? Thanks in advance