Proportional Directional Valve 4WRKE25E1-220L-3X/6EG24K31/F1D3V - Bosch Rexroth R901273376

Two sources of trouble often meet in heavy plant, the long signal cable and the swinging system pressure. This size 25 version therefore takes 4...20 mA as its command value and draws pilot oil through a dedicated line while metering 220 l/min.

Benefits

• The 4...20 mA command value stays reliable over long cables and next to large drives.
• External pilot oil supply and external return make the pilot stage independent of P and T.
• Spool symbol E1 with linear characteristic, 220 l/min nominal, up to 870 l/min peak.
• Internal spool position feedback gives repeatable behaviour under changing load.
• FKM seals, operating pressure up to 350 bar, weight 17.98 kg.

Applications

Typical places are roll adjustment, coilers and heavy handling axes where electrics and hydraulics are far apart. Live zero at 4 mA makes a line fault visible at once. Both pilot lines have to be routed separately and returned to tank without pressure.

Manufacturer

The Bosch Rexroth material number is R901273376, product family 4WRKE, interface ISO 4401-08-08-0-05.