Proportional Directional Valve 4WRZ10W9-85-7X/6EG24N9ETK4/M - Bosch Rexroth R900775138

Fewer ports and fewer parts shorten assembly noticeably. The 4WRZ10W9-85-7X/6EG24N9ETK4/M routes its pilot oil internally and does without the pressure reducing valve, at 85 l/min nominal flow in size 10.

Benefits

• Internal pilot oil supply and internal return, no external pilot lines needed.
• Without a pressure reducing valve in the pilot stage, a lean pilot stage layout.
• 85 l/min nominal flow, 170 l/min maximum at 315 bar operating pressure.
• Spool symbol W9, 3 switching positions, 4 ports to ISO 4401-05-05-0-05.
• 7.8 kg, 24 VDC, external electronics, NBR seals and HL hydraulic fluid.

Applications

This version belongs in the compact manifold where the pilot pressure taken from the main circuit already sits inside the permitted range. Without external pilot lines the piping stays limited to the four main ports. Concealed auxiliary actuation is still there for emergency moves.

Manufacturer

Bosch Rexroth, material number R900775138. 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.