Proportional Directional Valve 4WRZ10W8-85-7X/6EG24K4/V - Bosch Rexroth R901039740

The pilot-operated 4WRZ10W8-85-7X/6EG24K4/V proportional directional valve meters direction and magnitude of flow to spool symbol W8. Pilot oil supply and pilot oil return are external and nominal flow is 85 l/min.

Benefits

• External pilot oil supply and external pilot oil return, without pressure reducing valve
• Nominal flow 85 l/min, maximum 170 l/min in size 10
• Spool symbol W8 with 3 switching positions and 4 ports
• Continuous control through external electronics at 24 VDC
• Operating pressure up to 315 bar, connection diagram ISO 4401-05-05-0-05
• FKM seals, 7.78 kg mass

Applications

A separate control oil circuit keeps pilot pressure steady even when working pressure varies during a cycle. That matters for controlled acceleration and braking of axes on presses and test rigs. As no pressure reducing valve is fitted, the pilot pressure from the plant has to lie within the permitted range.

Manufacturer

Bosch Rexroth lists this valve under material number R901039740. Characteristic curves and pilot data are given in datasheet RE 29115.