Rexroth Pump A4VG Piston Pump Close Type

A4vg high pressure plunger pump series:

-The displacement ranges from 28 to 250

-Common pressure 400bar (40MPa)

-Peak pressure 450bar (45MPa)

Technical parameters:

Table of values (theoretical values, without considering η MH and η V; rounded values)

1) Maximum speed limit: - power consumption is half of the angular power (e.g. when VG man and PN / 2

2) High intermittent maximum speed: - in high speed no-load operation

-During engine overspeed: △ P = 70... 150 bar and VG Max

-At reverse peak load: △ P < 300 bar and T < 5 seconds.

Typical applications:

Concrete pump truck, heavy hydraulic flat truck, hydraulic pump station

Rexroth a4vg features:

Swash plate axial piston variable displacement pump is used for closed circuit hydrostatic transmission

The flow rate is directly proportional to the driving speed and displacement and can be stepless variable;

The flow rate increases from zero to its maximum value with swash plate swing angle;

Make the swash plate swing through the middle position, which can change the flow direction of liquid stably;

A variety of variable modes easy to match with various control and regulation systems;

The pump is equipped with two relief valves on the high-pressure oil side to protect the hydrostatic drive (pump and motor) from overload;

The high pressure relief valve also has the function of oil replenishing valve;

The built-in auxiliary pump is used as make-up oil pump and control pump;

The maximum make-up pressure is limited by a built-in oil replenishing relief valve;

Full range with built-in pressure shut-off valve;