Proportional Directional Valve 4WRZE25W6-325-7X/6EG24K31/A1D3M - Bosch Rexroth R900705878

Externally piloted and fitted with symbol W6, the 4WRZE25W6-325-7X/6EG24K31/A1D3M covers applications in which the main circuit stays without pressure at times. Nominal flow is 325 l/min, and up to 870 l/min are possible through the valve.

Benefits

• External pilot oil supply and external return, pilot pressure independent of the main circuit.
• Spool symbol W6 for axes that ramp out of centre position in both directions.
• Nominal flow 325 l/min at operating pressures up to 350 bar.
• Size 25 mounting pattern ISO 4401-08-08-0-05, three switching positions, four ports.
• On-board electronics for the analog ±10 V command value, 24 VDC supply.
• 7-pole connector (6 + PE) to EN 175201-804, NBR seals, mass 20.5 kg.

Applications

Typical duties are presses and test rigs with relief phases as well as systems that run their own pilot pump. The external circuit keeps the valve ready to control when the main circuit carries no pressure. Pilot supply and return have to be connected on site.

Manufacturer

Bosch Rexroth, material number R900705878. Pilot oil demand and characteristic curves are in the data sheet Proportional directional valve, pilot-operated (RE 29115).