The total efficiency of a hydraulic device or system is always given by the product of the volumetric and the hydromechanicalefficiency (Figure G 7):
![5ed0b7f734f847ecedd4c17c43d3cab1bc60cbb3 gesamtwirkungsgrad_01.gif](/fileadmin/smc/files/5ed0b7f734f847ecedd4c17c43d3cab1bc60cbb3.gif)
![48bb3fb5f9a9760b715f7825879bebeffc82244f 0001_gesamtwirkungsgrad.gif](/fileadmin/smc/files/48bb3fb5f9a9760b715f7825879bebeffc82244f.gif)
Figure G 7: Total efficiency of a pump as a function of Δp and n (viscosity η = const.)
The total efficiency of a hydraulic device or system is always given by the product of the volumetric and the hydromechanicalefficiency (Figure G 7):
Figure G 7: Total efficiency of a pump as a function of Δp and n (viscosity η = const.)
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