Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9ETK31/F1M - Bosch Rexroth R901119481

The fewer control lines a manifold carries, the fewer places can leak. This version feeds and drains its pilot stage internally, so only the four main ports need plumbing, at 325 l/min nominal flow and a 4...20 mA current command.

Benefits

• No X and no Y line required, pilot oil comes from the main channel and returns into the tank channel.
• Spool symbol W8 with three switching positions, rated at 325 l/min with a maximum of 870 l/min.
• A 4...20 mA current command is insensitive to voltage drop on long cable runs.
• Operating pressure up to 350 bar, NBR seals, hydraulic fluid HL.
• On-board electronics, 24 VDC, 7-pole connector (6 + PE) to EN 175201-804, mass 20.5 kg.

Applications

This valve belongs on a compact manifold where every extra fitting costs space and adds a sealing point. It controls cylinder and motor axes in forming plants and lifting gear. The concealed auxiliary actuation lets the axis be moved when control voltage has failed.

Manufacturer

Bosch Rexroth builds this valve under material number R901119481. 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.