Proportional Directional Valve 4WRZ25W8-220-7X/6EG24N9ETK4/D3M - Bosch Rexroth R900975898

The 4WRZ25W8-220-7X/6EG24N9ETK4/D3M feeds pilot oil in internally and discharges it internally. Two external lines are therefore not needed, nominal flow is 220 l/min and permissible operating pressure is 350 bar.

Benefits

• Internal pilot oil supply and internal return, no extra pilot lines required.
• Nominal flow 220 l/min, maximum 870 l/min in size 25.
• Spool symbol W8 with 3 switching positions and 4 ports.
• Integrated pressure reducing valve in the pilot stage, concealed auxiliary actuation on the housing.
• 20.48 kg, NBR seals, connection diagram ISO 4401-08-08-0-05, external electronics.

Applications

This variant is the simplest piping of the series and suits standard circuits with permanently applied system pressure. The tank channel has to stay largely free of pressure. Where back pressure builds in the return, a version with an external return is the right choice.

Manufacturer

The manufacturer is Bosch Rexroth, material number R900975898, product family 4WRZ(E). Data sheet RE 29115 describes the four pilot oil routing variants, RE 07600-B provides the range overview.