Bosch Rexroth

Axial Piston Variable Pump - A4VG

Perfect for different control and regulating functions, the A4VG from Bosch Rexroth features built-in pressure relief and boost valves.

Features

• Variable axial piston pump of swash plate 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