Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9K31/F1D3M - Bosch Rexroth R901072891

High supply pressure at the inlet and back pressure in the return often meet in large plants. This version separates both from the pilot stage: supply through X, drain through Y, plus a pressure reducing valve in the pilot line, at 325 l/min with spool symbol W6.

Benefits

• Dedicated X and Y lines keep inlet pressure and return back pressure away from the pilot stage.
• The reducing stage inside the valve caps pilot pressure at the level the pilot stage allows.
• Nominal flow 325 l/min, peak 870 l/min, operating pressure up to 350 bar.
• Spool symbol W6, three switching positions, concealed auxiliary actuation.
• Current command 4...20 mA, 24 VDC, 7-pole connector (6 + PE), mass 20.62 kg.

Applications

The combination is found in steelworks equipment, press lines and hydraulic engineering where several large consumers work into shared lines. The control circuit is routed separately and the Y line goes to tank without pressure. NBR seals are matched to hydraulic fluid HL.

Manufacturer

Bosch Rexroth builds this valve under material number R901072891. Quote that number when ordering and keep it in the spare parts list of the machine. Characteristic curves, installation dimensions and connection diagrams are in data sheet RE 29115 and RE 07600-B.