Is it necessary to use reducers at the inlet and outlet of vertical centrifugal pumps?
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Is it necessary to use reducers at the inlet and outlet of vertical centrifugal pumps?
It depends on the difference between the pump outlet diameter and the outlet pipeline diameter
The inlet becomes smaller, the velocity head increases, while the pressure head decreases; as a result, the negative pressure difference within the pump is reduced, thereby minimizing cavitation. The outlet becomes larger, the velocity head decreases, and the pressure head increases, which reduces friction losses and increases the head pressure
The pump outlet and the pipeline have different diameters, and they are connected together without any diameter change – are there any other options?
Four pumps: 2 with a capacity of 200 cubic meters per hour, with inlet and outlet diameters of 150; 2 with a capacity of 240 cubic meters per hour, with inlet and outlet diameters of 200. The main pipe has a diameter of 400. Is it necessary to change the diameter of the inlet and outlet pipes?