Best efficiency point of the pump

The operating point of a centrifugal pump is the point at which the pump has its maximum efficiency.

It is determined by the flow rate and head at the corresponding operating speed. When pumping highly viscous media, the pump characteristic curves and thus also the design point are shifted in relation to the characteristic curve recorded with water.

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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