Asked in Civil EngineeringIndustrial EngineeringMechanical Engineering
When two centrifugal pumps are connected in series the discharge changes by factor of?
February 29, 2012 4:05PM
Centrifugal pumps in series are used to overcome larger system head loss than one pump can handle alone.
- for two identical pumps in series the head will be twice the head of a single pump at the same flow rate - as indicated in point 2.
With a constant flowrate the combined head moves from 1 to 2.
Note! In practice the combined head and flow rate moves along the system curve to point 3.
- point 3 is where the system operates with both pumps running
- point 1 is where the system operates with one pump running
Series operation of single stage pumps is seldom encountered - more often multistage centrifugal pumps are used.