Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9TK31/F1M - Bosch Rexroth R901086047

As soon as working pressure falls below the minimum pilot pressure during a cycle, an internally piloted axis loses its actuating force. This variant therefore takes pilot oil from outside, returns it internally and controls 325 l/min nominal flow at 350 bar.

Benefits

• External pilot inlet keeps the pilot stage working even at low working pressure.
• 325 l/min nominal flow for large cylinder areas, up to 870 l/min at peak.
• Internal pilot return reduces the number of ports on the manifold.
• 4...20 mA command with live zero, so a broken line is noticed immediately.
• On-board electronics, 24 VDC supply through a 7-pole connector (6 + PE).

Applications

Typical cases are lowering movements under load, regenerative circuits and test cycles with pressure release, where system pressure briefly drops far down. Accumulator systems also benefit, because pilot pressure from the accumulator line stays stable. The valve weighs 20.16 kg.

Manufacturer

The manufacturer is Bosch Rexroth, material number R901086047. Full characteristic curves and mounting dimensions are listed in data sheet RE 29115 and RE 07600-B.