Proportional Directional Valve 4WRZ25W6-325-7X/6EG24N9ETK4/D3M - Bosch Rexroth R900244765

When moving from a switching valve to a controlled axis the pipework usually stays as it is, provided the new valve asks for no extra ports. The 4WRZ25W6-325-7X/6EG24N9ETK4/D3M meets that, is pilot operated internally and controls 325 l/min nominal flow.

Benefits

• Only subplate and plug are needed, pilot supply and return stay internal.
• Pressure reducing valve in the pilot stage, internal tapping also works at high system pressure.
• 325 l/min nominal flow, flow up to 870 l/min, spool symbol W6 in size 25.
• 20.44 kg weight, 350 bar maximum operating pressure, ISO 4401-08-08-0-05 pattern.
• Concealed auxiliary actuation, 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804.

Applications

This step is typical on older presses and lifting gear whose movements used to be switched hard on and off. The existing ISO 4401-08-08-0-05 subplate is kept, and the amplifier plus its wiring are added. Ramps and end positions can then be driven softly.

Manufacturer

Bosch Rexroth, material number R900244765. Characteristic curves, pilot pressure and pilot oil demand are given in data sheet RE 29115, range overview in RE 07600-B.