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A4VSO Hydraulic pumps Open circuit pumps Axial piston variable pump

Pressure controller DR
(for further information, see data sheet 92060)
The pressure controller limits the maximum pressure at the pump outlet within the control range of the variable pump.
The variable pump only supplies as much hydraulic fluid as is required by the consumers. If the working pressure exceeds the pressure command value at the pressure valve, the pump will regulate to a smaller displacement to reduce the control differential.
Initial position in depressurized state: Vg max.
Setting range for pressure control: 50 to 350 bar.
Standard is 350 bar.

Flow controller FR
(for further information, see data sheet 92060)
The flow controller adjusts the displacement of the pump to the volume required by the consumer.
The flow of the pump is then dependent on the cross section of the external metering orifice (pos. 4), which is located between the pump and the consumer. The flow is nearly independent of the load pressure within the control range of the pump.
Initial position in depressurized state: Vg max Mechanical minimum and maximum swivel angle limitation
The Vg min stop is set so that a pressure of 15 to 20 bar is set when port B is plugged.
The Vg max stop is set to nominal Vg max. When ordering , please state other settings values in plain text (possible setting ranges Vg max to 50% Vg max).

Technical data

Robust high-pressure pump for industrial applications.

Size 40 ... 1000.

Nominal pressure 350 bar.

Maximum pressure 400 bar.

Open circuit.

Features

Variable pump with axial piston rotary group of swashplate design for hydrostatic drives in open circuit.

Flow is proportional to the drive speed and displacement.

The flow can be infinitely varied by adjusting the swashplate angle.

Excellent suction performance.

Low noise level.