Proportional Directional Valve 4WRZ10E1-50-7X/6EG24N9K4/D3M - Bosch Rexroth R900978825

A fully external pilot circuit makes the pilot stage independent of the main circuit. The 4WRZ10E1-50-7X/6EG24N9K4/D3M uses that and controls at 50 l/min nominal flow in size 10.

Benefits

• External pilot oil supply and external return, switches even while the main circuit is unloaded.
• 50 l/min nominal flow, 170 l/min maximum flow at 315 bar operating pressure.
• Spool symbol E1, 3 switching positions, 4 ports on the ISO 4401-05-05-0-05 interface.
• Pressure reducing valve in the pilot stage and concealed auxiliary actuation.
• 8.2 kg, 24 VDC, external electronics, NBR seals for HL hydraulic fluid.

Applications

This variant belongs in accumulator circuits where the pump idles without pressure at times. Pilot oil then comes from the accumulator or a small auxiliary pump, so the axis stays controllable throughout. The middle step of 50 l/min covers feed and rapid traverse in one valve.

Manufacturer

Bosch Rexroth, material number R900978825. 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.