Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9EK4/D3V - Bosch Rexroth R900953672

In systems running hot oil around the clock, the sealing material decides service life. This size 32 directional valve combines FKM seals with 520 l/min nominal flow and an internal pilot oil supply that needs no extra pressure line.

Benefits

• FKM seals tolerate higher continuous temperatures than NBR and suit installations with a high duty cycle.
• Internal pilot oil supply from port P saves one line, while the external return through Y stays unpressurised.
• 520 l/min nominal flow, up to 1600 l/min peak flow, operating pressure up to 350 bar.
• The built-in pressure reducing valve stabilises pilot pressure across the whole load range.
• Concealed auxiliary actuation and spool symbol W9, weight 44 kg.

Applications

The valve is intended for presses, foundry equipment and continuously running test rigs where oil temperature stays high. External amplifier electronics provide the characteristic curve and the ramps. Because of the 44 kg mass the valve belongs on a load-bearing subplate or inside a control manifold.

Manufacturer

The Bosch Rexroth material number is R900953672, product family 4WRZ(E), interface ISO 4401-10-09-0-05. The complete characteristic curves are given in the data sheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).