Proportional Directional Valve 4WRZE10W8-85-7X/6EG24N9TK31/A1D3M - Bosch Rexroth R901148877

A dedicated pilot pump delivers constant pilot pressure regardless of the working circuit. This version connects it externally and returns pilot oil internally into the tank gallery while controlling 85 l/min nominal flow at 315 bar.

Benefits

• 85 l/min nominal flow and 170 l/min maximum flow.
• External pilot oil supply from a dedicated source, internal drain without a second return line.
• Pressure reducing valve in the pilot circuit for consistent switching times at 315 bar.
• Concealed manual override, ±10 V command value, 24 V DC supply.
• 8.47 kg weight, spool symbol W8, NBR seals, ISO 4401-05-05-0-05 interface.

Applications

Widely used on presses and power units with a separate pilot circuit and a shared return. The arrangement allows brisk switching even when working pressure drops. 85 l/min is enough to extend and retract mid range cylinders quickly.

Manufacturer

Bosch Rexroth, material number R901148877. Series part from current production. Further ratings are in data sheet RE 29115 and in overview RE 07600-B.