Pump Performance Chart

The pump performance chart is a summarized diagram containing multiple pump performance curves.
Pump Performance Chart

Pump performance chart with curves for different impeller diameters.

The performance curves differ in exact one parameter, such as

  • Impeller diameter
  • Propeller degree
  • Speed
  • Number of stages

 

More articles on this topic

Speed – Affinity Laws

The affinity law describes the speed dependency of the delivery parameters of centrifugal pumps. It can be derived from the general similarity relationships as a special case.

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Pump Performance Curve

The pumping performance of a centrifugal pump is expressed in the form of an H-Q curve, depicting the Flow Q (e.g. in m³/h) and the Head H (e.g. in m) of the pump.

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System Curve

The system H-Q curve is essentially a parabolic curve representing the relation between the head (pressure) required to handle the respective rate of flow within a pipe system.

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Head

The head is a measure of the pressure delivered by the pump. It is usually indicated in a characteristic curve as a function of the flow (throttle curve).

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