Proportional Directional Valve 4WRZ25W9-220-7X/6EG24N9K4/D3V - Bosch Rexroth R900722083

At flows of this order the pilot pressure has to stay limited, otherwise the pilot stage works outside its range. The 4WRZ25W9-220-7X/6EG24N9K4/D3V carries a pressure reducing valve for that and meters 220 l/min nominal flow in size 25.

Benefits

• 220 l/min nominal flow, up to 870 l/min throughput, connection pattern ISO 4401-08-08-0-05.
• With a pressure reducing valve in the pilot circuit, pilot oil supplied and drained externally.
• Electrical with external electronics, 24 VDC supply, spool symbol W9.
• 350 bar maximum operating pressure, three switching positions, four ports.
• Concealed auxiliary actuation for setup mode, pilot-operated spool valve.
• 18.2 kg, FKM seals, HL hydraulic fluid, size 25 on a subplate.

Applications

The valve serves main axes of presses, stretching lines and test rigs that meter large oil volumes proportionally. The external electronics sit in the cabinet and can be parameterised there. Concealed auxiliary actuation allows the axis to be moved in setup mode without a command signal.

Manufacturer

Bosch Rexroth, material number R900722083. Characteristic curves, dimensions and pilot oil demand are given in data sheets RE 29115 and RE 07600-B.