Pls tell me the proplems when i connect two pumps(4*3) seriesly ?

Question

Pls tell me the proplems when i connect two pumps(4*3) seriesly ?

Answer 1

You can not connect two positive displacement pumps in series. You can do it for centrifugal pumps. There isn't a large gain in head but there is a large increase in flow when two centrifugal pumps are connected in series. There amount of NPSH available reduces when pumps are put in series and cavitation may occur