Proportional Directional Valve 4WRZ25W6-220-7X/6EG24N9TK4/M - Bosch Rexroth R901094372

This build of the 4WRZ series omits the internal pressure reducing valve and expects pilot pressure from an external circuit. The 4WRZ25W6-220-7X/6EG24N9TK4/M thus controls 220 l/min nominal flow at 350 bar in size 25.

Benefits

• Without an internal pressure reducing valve, pilot pressure is provided by the plant.
• Pilot oil supplied externally, drained internally, a separate pilot return line is not needed.
• 220 l/min nominal flow, up to 870 l/min peak flow at 350 bar maximum operating pressure.
• Concealed auxiliary actuation for moving the axis in setup mode.
• Spool symbol W6, 20 kg weight, 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804 with external electronics.

Applications

The valve is intended for plants that generate and protect pilot pressure centrally, such as large presses with a pilot pump. The concealed auxiliary actuation allows the axis to be moved when the electronics have failed, while preventing accidental operation during production. Check the permissible pilot pressure before connecting.

Manufacturer

Bosch Rexroth, material number R901094372. Pilot pressure range, characteristic curves and dimensions are given in data sheet RE 29115.