Proportional Directional Valve 4WRKE25W8-350L-3X/6EG24EK31/F1D3V - Bosch Rexroth R901526993

On large differential cylinders the nominal flow decides the stroke time. At 350 l/min this size 25 version sits at the upper end of its series and allows up to 870 l/min at peak, controlled by a 4...20 mA current signal.

Benefits

• 350 l/min nominal flow cuts stroke time on large cylinders noticeably against the 220 l/min step.
• Peak flow up to 870 l/min stays available for the unloaded return.
• Internal pilot oil supply with external return through Y suits loaded tank lines.
• 4...20 mA command value for remote controllers, with electronics on board the valve.
• FKM seals, operating pressure up to 350 bar, weight 17.98 kg.

Applications

The valve goes into presses, stretching lines and forging machines whose cylinders demand large volumes. Internal spool position feedback keeps the axis controllable despite the high flow. The Y line has to run separately and without pressure to tank.

Manufacturer

Bosch Rexroth lists this valve under material number R901526993, product family 4WRKE, size 25.