Proportional Directional Valve 4WRLE16W8-200LJ-4X/MXY/24F1 - Bosch Rexroth R901489205

Systems with a separate pilot pump and a remote controller raise two demands at once: constant pilot pressure and interference-proof command transmission. This 4WRLE16W8-200LJ answers both, taking pilot oil externally at X, draining externally at Y and working from a 4...20 mA current command. The main spool is controlled by internal position feedback and meters 200 l/min nominal.

Benefits

• Pilot oil in and out externally, the pilot circuit is fully decoupled from the working circuit.
• Command value 4...20 mA, suited to long cables and noisy surroundings.
• 200 l/min nominal flow with an 800 l/min limit.
• Internal main spool position feedback for a load-independent characteristic.
• Operating pressure 350 bar, CE conformity, NBR seals for HL.
• Valve weight 12.24 kg, 7-pole connector to EN 175201-804.

Technical data

Applications

This variant is needed on large test rigs, hydropower plants and forming presses with a dedicated pilot power unit. The external control circuit lets the main spool be moved even when the working circuit is unpressurised, for example during setup. Both pilot ports X and Y must be present on the subplate.

Manufacturer

The Bosch Rexroth material number is R901489205.