The diameter of the inlet flange of the centrifugal pump is larger than that of the inlet pipeline
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As the title suggests, is this situation allowed? The inlet pipeline is 2 inches, and the pump inlet flange is 3 inches.
They are usually of the same diameter; in a case like yours, a reducer can be added.
Generally, the pipe diameter is larger than the pump inlet diameter, and a reducing connection is used
Generally, this kind of situation is not allowed
What is the reason? Cavitation considerations?
No, it can only be changed from large to small to prevent cavitation.
It’s not allowed, but if it has already been installed and needs to be used, the flow rate can be controlled at the pump’s outlet to prevent the pump from running dry; this way it can still be used