Proportional Directional Valve 4WRZE32W8-520-7X/6EG24N9K31/A1D3M - Bosch Rexroth R900769053

Both pilot oil paths run outside on this version, which fully decouples the pilot stage from the working circuit, at 520 l/min nominal flow on a ±10 V command value.

Key benefits

• External pilot oil supply and return, the pilot stage stays independent of working pressure and tank pressure.
• 520 l/min nominal flow at a maximum flow of 1600 l/min.
• ±10 V command value on a 24 VDC supply, the electronics sit on the valve.
• Spool symbol W8, 4 ports, 3 switching positions, interface ISO 4401-10-09-0-05.
• 44.04 kg, integrated pressure reducing valve, operating pressure to 350 bar, NBR seals.

Applications

Press lines, forging hammers and test rigs with a central pilot pressure supply are the usual application. Because pilot supply and return have their own ports, pilot pressure can be monitored separately. HL is the specified hydraulic fluid.

Manufacturer

Bosch Rexroth, material number R900769053, product family 4WRZ(E). Permissible pilot pressures and characteristic curves are in data sheet RE 29115, RE 07600-B holds the general information on hydraulic valves.