Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9TK4/D3M - Bosch Rexroth R901154794

External pilot oil supply with an internal return keeps pilot pressure independent of the main circuit and still needs one line less. Nominal flow of this version is 520 l/min at operating pressures up to 350 bar.

Advantages

• External pilot oil supply, internal return into port T
• Nominal flow 520 l/min, maximum flow up to 1600 l/min
• Spool symbol W9, three switching positions, connection diagram ISO 4401-10-09-0-05
• Pressure reducing valve in the pilot stage, concealed auxiliary actuation
• External amplifier electronics on 24 VDC, operating pressure up to 350 bar
• NBR seals for HL hydraulic fluid, 43.66 kg

Applications

Fits power units with a central control pressure supply and an unpressurised return. The concealed auxiliary actuation moves the axis during commissioning before the amplifier card is adjusted. Mounting is on an ISO 4401-10 subplate.

Manufacturer

Bosch Rexroth, material number R901154794. The article carries type designation 4WRZ32W9-520-7X/6EG24N9TK4/D3M. Characteristic curves, limits and installation notes are in data sheet RE 29115, the range overview RE 07600-B adds to it.