Proportional Directional Valve 4WRZE25W8-220-7X/6EG24TK31/F1D3M - Bosch Rexroth R901113991

Plants that unload working pressure during the cycle lose actuating force at the main spool if pilot oil comes from inside. The 4WRZE25W8-220-7X/6EG24TK31/F1D3M therefore takes pilot oil externally and reliably meters 220 l/min nominal flow at 350 bar.

Benefits

• External pilot oil supply secures actuating force when pressure at P is unloaded during the cycle.
• Internal pilot oil return saves an additional line to tank.
• The integrated pressure reducing valve limits pilot pressure independently of system pressure.
• Spool symbol W8 at 220 l/min nominal flow, up to 870 l/min maximum flow.
• A 4 ... 20 mA command and 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804.

Applications

Suited to power units with variable displacement pumps, accumulator circuits and machines running staged pressures. Three switching positions across four ports cover both travel directions plus centre. The valve weighs 20.58 kg and meets UKCA requirements.

Manufacturer

Bosch Rexroth, material number R901113991. Two documents are on file, and the data sheet holds characteristic curves, limit values and installation notes.