Proportional Directional Valve 4WRZ10W8-25-7X/6EG24N9K4/D3M - Bosch Rexroth R901000863

Reproducibility comes from a pilot pressure that stays constant. The 4WRZ10W8-25-7X/6EG24N9K4/D3M therefore draws and relieves its pilot oil externally and works at 25 l/min nominal flow in size 10.

Benefits

• External pilot oil supply and external return, constant pilot pressure across the whole cycle.
• 25 l/min nominal flow for fine resolution, up to 170 l/min flow.
• 315 bar operating pressure, spool symbol W8 with 3 switching positions across 4 ports.
• Pressure reducing valve in the pilot stage, plus concealed auxiliary actuation.
• 8.2 kg, 24 VDC, NBR seals for HL hydraulic fluid in size 10.

Applications

It is intended for test benches and control axes where every stroke has to come out the same. The dedicated pilot circuit takes fluctuations of the main pressure out of the control loop. Spool symbol W8 defines how the ports are joined in centre position.

Manufacturer

Bosch Rexroth, material number R901000863. 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.