Proportional Directional Valve 4WRKE27E1-500L-3X/6EG24K31/F1D3M - Bosch Rexroth R901348665

Internal position feedback on the main spool holds the set opening under changing load, and the characteristic curve is linear. The size 27 valve is driven by a 4...20 mA current command value and releases 500 l/min nominal flow at up to 270 bar operating pressure.

Benefits

• Internal position feedback of the main spool, linear characteristic curve across the whole command range.
• Nominal flow 500 l/min, maximum flow 1000 l/min.
• 4...20 mA current command value, insensitive to voltage drop on long cables, 24 VDC supply.
• External pilot oil supply and return, so the pilot circuit can be filtered and cooled separately.
• Operating pressure up to 270 bar, subplate mounting to ISO 4401-08-08-0-05, 3 switching positions and 4 ports.
• NBR seals for HL hydraulic fluid, weight 19.46 kg.

Applications

This version belongs where an axis has to follow a defined motion profile and the control cabinet stands far from the machine. The 4...20 mA command value carries the setpoint without loss, and position feedback corrects spool deviation inside the valve itself. External pilot oil routing matches plants that run their own pilot power unit.

Manufacturer

Bosch Rexroth lists this valve under material number R901348665, type code 4WRKE27E1-500L-3X/6EG24K31/F1D3M. The type code states size 27, spool symbol E1, 500 l/min nominal flow and 24 VDC control.