Proportional Directional Valve 4WRZ32E1-520-7X/6EG24N9EK4/M - Bosch Rexroth R901036763

Where a return line runs through filters and coolers, residual pressure builds in the tank channel and acts back on the pilot stage. The 4WRZ32E1-520-7X/6EG24N9EK4/M avoids that through external pilot oil return combined with internal supply, working at 520 l/min nominal flow.

Benefits

• External pilot oil return through a dedicated Y line, back pressure in the tank channel does not act on the pilot stage.
• Internal pilot oil supply, an extra pressure line to the pilot stage is dropped.
• 520 l/min nominal flow, up to 1600 l/min at 350 bar maximum operating pressure.
• Spool symbol E1, 3 switching positions, 4 ports to ISO 4401-10-09-0-05 in size 32.
• 43.08 kg weight, NBR seals, intended for HL hydraulic fluid in an industrial circuit.

Applications

The valve suits plants with a heavily loaded return line, for example large presses carrying coolers and return filters in the tank channel. A separate Y line keeps the pilot pressure independent of the return condition. An external amplifier at 24 VDC provides the command signal.

Manufacturer

Bosch Rexroth, material number R901036763. Installation notes and characteristic curves are given in data sheet RE 29115.