Variable Displacement Pump A4VG

Variable displacement axial piston pump of swashplate design for hydrostatic closed circuit transmissions.

Flow is proportional to drive speed and displacement and is infinitely variable.

Output flow increases with swivel angle from 0 to its maximum value.

Swivelling the pump over centre smoothly changes the direction of flow.

A highly adaptable range of control and regulating devices is available.

The pump is equipped with two pressure relief valves on the high pressure ports to protect the hydrostatic transmission (pump and motor) from overloads.