Proportional Directional Valve 4WRZ10W8-85-7X/6EG24N9EK4/D3M - Bosch Rexroth R900976333

The fuller the return filter, the higher the counter pressure in the tank line. The 4WRZ10W8-85-7X/6EG24N9EK4/D3M routes its pilot oil past that line and keeps the characteristic the same over the life of the filter.

Benefits

• External pilot oil return with internal supply, independent of the condition of the return filter.
• 85 l/min nominal flow, up to 170 l/min flow at 315 bar.
• Spool symbol W8 with 3 switching positions across 4 ports in size 10.
• Pressure reducing valve in the pilot stage, concealed auxiliary actuation on the valve.
• 8.2 kg, 24 VDC, external electronics, NBR seals, subplate mounting ISO 4401-05-05-0-05.

Applications

This version belongs on machines with a return filter or a long tank line. The separate pilot return keeps the step response constant even as filter resistance grows. The large nominal step serves axes that need a lot of oil in a short time.

Manufacturer

Bosch Rexroth, material number R900976333. Characteristic curves, step responses and installation dimensions are given in data sheet RE 29115 on the pilot-operated proportional directional valve, the series overview in RE 07600-B.