Pumps in Parallel or Serial Connection

For pumps in serial - add heads, for pumps in parallel - add flowrates

When two (or more) pumps are arranged in serial, their resulting pump performance curve is obtained by adding heads at the same flow rate.

pumps in series

For two identical pumps the head will be twice the head of a single pump at the same flow rate.

If one of the pumps stops, the operation point moves allong the system resistance curve from point 1 to point 2 - head and flow rate are decreased.

When two or more pumps are arranged in parallel, their resulting performance curve is obtained by adding their flowrates at the same head.

pumps in parallel

For two identical pumps the flow rate will be twice the flowrate of a single pump at the same head.

If one of the pumps stops, the operation point moves allong the system resistance curve from point 1 to point 2 - head and flow rate are decreased.

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