Proportional Directional Valve 4WRZ16W8-180-7X/6EG24N9EK4/M - Bosch Rexroth R901477479

The 4WRZ16W8-180-7X/6EG24N9EK4/M proportional directional valve takes pilot oil internally from the main channel and releases it through an external return. This keeps the pilot circuit independent of back pressure in the tank line.

Benefits

• Internal pilot oil supply, external pilot oil return against tank back pressure
• Without pressure reducing valve in the pilot stage
• Nominal flow 180 l/min, flow up to 460 l/min
• Spool symbol W8, 3 switching positions, size 16
• Maximum operating pressure 350 bar, weight 11.2 kg
• Electrical with external electronics, 24 VDC supply

Applications

Intended for systems with a long or filtered return line where noticeable back pressure builds up in the tank channel. The separate pilot return keeps the pilot stage reproducible. The subplate interface follows ISO 4401-07-07-0-05.

Manufacturer

Bosch Rexroth, material number R901477479, type 4WRZ16W8-180-7X/6EG24N9EK4/M with NBR seals. Characteristic curves, installation dimensions and tightening torques are in data sheet RE 29115.