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Hydraulic Pump - Required Shaft Power

Shaft power for a hydraulic pump delivering a given flow at a specific pressure - P = Q·p/η.

HydraulicPumpPower
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Formula, assumptions, and limits

Pshaft=Qpη600P_{shaft} = \frac{Q \cdot p}{\eta \cdot 600}
SymbolMeaningUnit
QQVolumetric flowL/min
ppWorking pressurebar
η\etaOverall efficiency

Source: Bosch Rexroth Marine Hydraulic Handbook

In short

Shaft power for a hydraulic pump delivering a given flow at a specific pressure - P = Q\u00b7p/\u03b7.

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