Suction piping should be at least one size larger than the suction flange at the pump.
If increasers are used on the discharge side to increase the size of discharge piping, they should be installed between the check valve and the pump.
Both a check and gate valve should be installed in the...
This is my piping rule of thumb for the past eighteen years, nortured vastly by experience.
A. Liquid lines should be sized for a velocity of (5+D/3) ft/s and a pressure drop of
2.0 psi/100 ft of pipe at pump discharge. That means for a 3" diameter pipe, the velocity should be at least 6...
