Proportional Directional Valve 4WRZE32W8-520-7X/6EG24ETK31/A1D3M - Bosch Rexroth R900954701

The fewer drillings a manifold needs, the cheaper it gets and the fewer sealing faces it has. The 4WRZE32W8-520-7X/6EG24ETK31/A1D3M manages 520 l/min nominal flow with no external pilot lines at all, because both pilot supply and pilot return are routed internally.

Key benefits

• Pilot oil routed entirely inside - neither an X port nor a Y port, so fewer drillings and fewer sealing faces in the manifold.
• 520 l/min nominal flow at 350 bar - the highest step of the series in the simplest piping concept.
• Command value ±10 V - a direct input from the analog output card, processed in the on-board electronics.
• Spool symbol W8, 3 switching positions, 4 ports - interface ISO 4401-10-09-0-05.
• Pressure reducing valve in the pilot circuit - limits pilot pressure independently of system pressure.
• 43.6 kg, NBR seals, hydraulic fluid HL - supply 24 VDC through a 7-pole connector (6 + PE) to EN 175201-804.

Technical data

Applications

The version makes sense in compact manifolds where space and drilling pattern are tight, for example in presses, clamping hydraulics and mobile test assemblies. Since the pilot stage is fed from the main circuit, pressure has to be present there before the valve will move. EMC is covered by UKCA SI2016/1091.

Manufacturer

Made by Bosch Rexroth, material number R900954701. Performance limits, curves and installation dimensions are in data sheet RE 29115, with general information in RE 07600-B.