Proportional Directional Valve 4WRZE16W8-180-7X/6EG24N9K31/A1D3M - Bosch Rexroth R901460344

With an internally fed pilot stage, the valve becomes sluggish as soon as working pressure collapses. In this version the 4WRZE16W8-180 takes pilot oil externally at X and drains externally at Y, so the pilot stage works independently of the working circuit. It meters 180 l/min nominal at a limit of 460 l/min and 350 bar operating pressure.

Benefits

• External pilot supply and external drain give a constant stroke time even during pressure drops.
• 180 l/min nominal flow, limit 460 l/min.
• Command value plus/minus 10 V through the 7-pole connector to EN 175201-804.
• Pressure reducing valve in the pilot stage, on-board electronics from 24 VDC.
• Spool symbol W8, 3 switching positions, concealed manual override.
• UKCA conformity, NBR seals, valve weight 12.5 kg.

Applications

It pays off on presses with a rapid stroke and force build-up, on forging hammers and on lifting gear with strongly varying load. A dedicated pilot circuit at constant pressure is the precondition for that advantage. Both channels X and Y must be carried in the subplate.

Manufacturer

Bosch Rexroth lists this valve under material number R901460344. 2 manufacturer documents cover characteristic curves, port pattern and installation dimensions.