Proportional Directional Valve 4WRZ10W9-25-7X/6EG24N9K4/M - Bosch Rexroth R901184544

Every adjustment point in the pilot stage is a source of error during commissioning. The 4WRZ10W9-25-7X/6EG24N9K4/M leaves the pressure reducing valve out and controls at 25 l/min nominal flow.

Benefits

• 25 l/min nominal flow for fine resolution, up to 170 l/min flow.
• Without a pressure reducing valve in the pilot stage, one adjustment point fewer at commissioning.
• External pilot oil supply and external return at 315 bar operating pressure.
• Spool symbol W9 with 3 switching positions across 4 ports.
• 7.74 kg, 24 VDC, NBR seals, subplate mounting to ISO 4401-05-05-0-05.

Applications

The application is on short-stroke positioning axes whose pilot pressure comes from a central circuit. The fine nominal step allows accurate approach at slow travel. Through the external amplifier card, characteristic and ramps can be stored centrally.

Manufacturer

Bosch Rexroth, material number R901184544. 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.