Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9ETK31/A1D3V - Bosch Rexroth R900726723

Exchanging a valve gets expensive as soon as extra control-oil lines have to be drilled and routed. This size 25 variant feeds its pilot stage internally and returns it internally, delivers 325 l/min nominal flow and keeps the familiar ±10 V voltage interface.

Benefits

• Internal piloting in both directions, so the existing ISO 4401-08-08-0-05 pattern is enough.
• 325 l/min nominal flow, flow up to 870 l/min, operating pressure up to 350 bar.
• ±10 V voltage command, exactly what existing control cards supply.
• Spool symbol W8, 4 ports, 3 switching positions, 24 VDC supply.
• Weight 20.62 kg, FKM seals, HL hydraulic fluid.

Technical data

Applications

The variant is intended as a replacement in presses, lifting gear and clamping systems with an existing manifold. The main circuit must carry pressure permanently for the internal control-oil take-off. A concealed manual override on the pilot valve is there for emergency operation.

Manufacturer

Bosch Rexroth, material number R900726723. Product family 4WRZ(E), pilot-operated, subplate mounting, pressure reducing valve integrated in the pilot stage. Further details are given in data sheets RE 29115 and RE 07600-B.