Pump surging
Pump surging
(OP)
Hi gents,
I have a problem relating to two pumps (both centrifugal). Both pumps pump the same distance have the same head requirments (on paper) and all have the same parts. Only one pump is ever running at a time. The problem is that when one pump is running all is well. When we change to the other pump (exactly the same fluid, head requirments ect...) the pump starts to surge. Why would this be? Is it possible that there is some minute change in the piping or impeller that could cause this? This has been an ongoing issue nobody has bothered to figure it out so I eliminated any recent changes that have occured.
Any ideas...
I have a problem relating to two pumps (both centrifugal). Both pumps pump the same distance have the same head requirments (on paper) and all have the same parts. Only one pump is ever running at a time. The problem is that when one pump is running all is well. When we change to the other pump (exactly the same fluid, head requirments ect...) the pump starts to surge. Why would this be? Is it possible that there is some minute change in the piping or impeller that could cause this? This has been an ongoing issue nobody has bothered to figure it out so I eliminated any recent changes that have occured.
Any ideas...





RE: Pump surging
Is there a time during the change from one pump to the other when both are running?
RE: Pump surging
RE: Pump surging
Can you expand on the fluid handled ?
RE: Pump surging
During the change over. do you have any isolating valves for each pumps. I have to agree with 25362 we need a bit more info on you situation.
RE: Pump surging