Proportional Directional Valve 4WRZE10W8-85-7X/6EG24N9K31/A1M - Bosch Rexroth R900774169

Steering gear and deck cranes on board keep their pilot supply apart from the working circuit so the actuating function survives load changes. The 4WRZE10W8-85-7X/6EG24N9K31/A1M follows that layout with external supply and external return and regulates 85 l/min nominal flow through spool symbol W8.

Benefits

• External pilot oil supply and external return, separated from the main circuit.
• Nominal flow 85 l/min through spool symbol W8, maximum flow 170 l/min.
• Version without pressure reducing valve, concealed auxiliary actuation for emergency operation.
• Operating pressure up to 315 bar, connection diagram ISO 4401-05-05-0-05, size 10.
• Analog ±10 V command value, 24 VDC supply, weight 7.98 kg.

Applications

Shipboard hydraulics, steering gear, hatch covers and deck cranes work under continuously changing load. The concealed auxiliary actuation allows an emergency shift if the command signal fails. Supply and command value run together to the valve through the 7-pole connector to EN 175201-804.

Manufacturer

Bosch Rexroth lists the valve under R900774169. Type code 4WRZE10W8-85-7X/6EG24N9K31/A1M is decoded in datasheet RE 29115, which also holds characteristic curves and the port pattern, RE 07600-B adds the fluid data.