centrifugal pump piping
centrifugal pump piping
(OP)
We want to install a centrifugal pump in our workshop for water circulation. The pump is a single stage and the suction nozzle is 5" while the discharge is 4". The suction and discharge pipes are same size 6". What are the consequences of having both lines to the same size?





RE: centrifugal pump piping
If you are pumping out of a resevoir or tank at some pressure - you want to minimize the pressure drop in that line by making the line size bigger and not installing suction strainers to make sure you have enough Net Positive Suction Head (NPSH)to prevent cavitation in the pump impeller.
If you are circulating in a closed loop - no worries....
RE: centrifugal pump piping
For the suction side avoiding cavitation (sufficient NPSH) is the most important factor.
To do these calculations a useful website is http://www.engineeringpage.com
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RE: centrifugal pump piping
RE: centrifugal pump piping
rmw
RE: centrifugal pump piping
I understand that suction strainer is required in typical installation of pump. Please comment.