Proportional Directional Valve 4WRLE16E1-250LJ-4X/MXT/24A1 - Bosch Rexroth R901538113

When system pressure collapses during the cycle, an internally fed pilot stage loses its actuating force. This version therefore draws pilot oil externally through X but drains it internally to tank, which saves the Y line. With 250 l/min nominal flow and internal main spool position feedback, the valve holds the command even when the cylinder load changes.

Benefits

• External pilot supply keeps pilot pressure stable even when working pressure drops.
• Internal pilot return, so the Y port on the subplate is not needed.
• 250 l/min nominal flow, limit 800 l/min at 350 bar.
• Internal main spool position feedback, linear characteristic with symbol E1.
• Command value plus/minus 10 V, on-board electronics fed from 24 VDC.
• CE conformity, 11.94 kg, port pattern ISO 4401-07-07-0-05.

Applications

Typical duty is on presses and clamping systems whose pressure swings between rapid stroke and force build-up. External supply keeps the stroke time the same across the whole cycle. Pilot port X must be pressurised permanently, otherwise the main spool stays in its rest position.

Manufacturer

Bosch Rexroth assigns material number R901538113 to this valve.