Proportional Directional Valve 4WRZE25W8-220-7X/6EG24N9EK31/F1D3V - Bosch Rexroth R900949748

For axes that do not need the full 325 l/min, the 220 l/min build is the more accurate choice, because the command range spreads better across the spool stroke. This variant takes pilot oil internally, drains it externally and works from a 4 to 20 mA current command.

Benefits

• 220 l/min nominal flow for finer metering than the larger spool rating gives.
• External pilot oil return, independent of pressure in the working return line.
• Command value 4 to 20 mA, suited to long signal runs back to the controller.
• Operating pressure up to 350 bar, flow up to 870 l/min, spool symbol W8.
• 24 VDC, 7-pole connector (6 + PE) to EN 175201-804, weight 20.62 kg.

Applications

The valve is used on feed axes, tilting devices and clamping cylinders with medium oil demand. The separated control-oil drain is mandatory when filters or coolers sit in the tank run. Internal take-off requires the main circuit to carry pressure.

Manufacturer

Bosch Rexroth, material number R900949748. Product family 4WRZ(E), subplate mounting, FKM seals, HL hydraulic fluid. Further details are given in data sheets RE 29115 and RE 07600-B.