Features: large servo piston with a strong bias spring achieves fast response, e.g., for PV46, up-stroke <70 ms, down-stroke <40 ms; reduced pressure peaks due to active decompression of system, at down-stroke; also at low system pressure, reliable compensator operation for the lowest compensating pressure <20 bar; nine piston and new pre-compression technology (pre-compression filter volume) result in an unbeaten, low outlet flow pulsation; rigid and FEM-optimised body design for lowest noise level; complete compensator program; thru drive for 100% nominal torque; and pump combinations (multiple pumps) of same size and model and mounting interface for basically all metric or SAE mounting interfaces.