Pump Inlet Conditions?
Pump Inlet Conditions?
(OP)
I am retrofitting an old wastewater station that is feeding a centrifugal pump. The station provides an average of 4' of head at pump inlet. The existing pump is configured with a 4" inlet. I want to install a new centrifugal pump that has a 6" inlet. If I install a 6" pipe several diameters upstream should I be concerned? This would allow me to avoid major plumbing construction. I was told this was a "big no-no", but I can't prove it.
Thanks for any help you provide,
Jason Reber
Honolulu, Hawaii
Thanks for any help you provide,
Jason Reber
Honolulu, Hawaii





RE: Pump Inlet Conditions?
Although pump connections sizes are important, they are minor compared to pump data such as curve geometry, NPSHr, the system curve, and operating conditions such as flow range and duration of the different flows that will be seen.
PUMPDESIGNER
RE: Pump Inlet Conditions?
RE: Pump Inlet Conditions?