Performance Characteristics of Centrifugal Pumps

  • Sam Yedidiah


The energy transfer in a centrifugal pump is accomplished by changing the state of motion of the liquid. The magnitude of this change depends upon the dimensions and shape of the waterways and on the operating speed of the impeller. For a given pump geometry and operating speed, the velocities of the liquid vary with the flow rate. Consequently, centrifugal pumps develop different heads at different flow rates. Similarly, efficiency, power requirements, and suction capability also vary with flow rate.


Rating Curve Centrifugal Pump Efficiency Curve Peak Efficiency Variable Head 
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© Chapman & Hall 1996

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  • Sam Yedidiah

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