A4VG Series Hydraulic Pump

Replacement for

Item: A4VG

Sizes 28...250

Replacement for

Item: A4VG

Brand: Rexroth

Sizes 28...250

Nominal pressure 400 bar

Peak pressure 450 bar

Features

Variable 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 the swivel angle of the swash plate from 0 to its maximum value

Flow direction changes smoothly when the swash plate is moved through the neutral position

A wide range of highly adaptable control devices is available for different control and regulating functions

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

The high-pressure relief valves also function as boost valves

The integrated boost pump acts as a feed and control oil pump

The maximum boost pressure is limited by a built-in boost pressure relief valve

The integral pressure cut-off is standard

Technical Data

Table of values (theoretical values, without efficiencies and tolerances; values rounded)

Intermittent maximum speed: at high idle speed; at over speed: p = 70...150 bar and Vg max; at reversing peaks: p< 300 bar and t < 0.1 s.