Proportional Directional Valve 4WRZE10W8-50-7X/6EG24EK31/A1M - Bosch Rexroth R901035079

Back pressure in the tank return distorts the pilot stage if the pilot oil is drained internally. The 4WRZE10W8-50-7X/6EG24EK31/A1M therefore takes pilot pressure internally from the main circuit but drains the pilot oil externally through the Y line, at 50 l/min nominal flow.

Benefits

• Internal pilot oil supply with external drain, Y line to tank without pressure.
• 50 l/min nominal flow in size 10, up to 170 l/min maximum.
• Spool symbol W8 with three switching positions.
• Command value ±10 V, on-board electronics at 24 V DC.
• 8.02 kg weight at 315 bar maximum operating pressure, UKCA to SI2016/1091.

Applications

This version fits circuits with a return filter or cooler where tank pressure sits above zero. The separate drain keeps the pilot stage clear of that back pressure. Connection diagram ISO 4401-05-05-0-05, seals in NBR.

Manufacturer

Bosch Rexroth, material number R901035079, product family 4WRZ(E). Characteristic curves, connection diagram and mounting dimensions are given in data sheets RE 29115 and RE 07600-B.