SERIES AND PARALLEL OPERATION OF CENTRIFUGAL PUMPS 18-1

A centrifugal pump will pump fluid at the point where the system curve intersects the pump curve.

If you need more flexibility you can install another pump and operate it in either series or parallel with the first pump.

SERIES OPERATION

Centrifugal pumps are connected in series if the discharge of one pump is connected to the suction side of a second pump. Two similar pumps, in series, operate in the same manner as a two-stage centrifugal pump.

Each of the pumps is putting energy into the pumping fluid, so the resultant head is the sum of the individual heads.

Some things to consider when you connect pumps in series:

 

PARALLEL OPERATION

Pumps are operated in parallel when two or more pumps are connected to a common discharge line, and share the same suction conditions.

Some things to consider when pumps are operated in parallel:

Remember the following:

  For information about my CD with over 600 Seal & Pump Subjects explained, click here  

 Link to Mc Nally home page www.mcnallyinstitute.com