Proportional Directional Valve 4WRKE25R220L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R901479295

A press slide has to follow its programmed path under changing load. The pilot-operated proportional directional valve 4WRKE25R220L-3X/6EG24ETK31/A1D3M passes 220 l/min nominal flow, works up to 350 bar operating pressure and corrects spool position through internal position feedback before the axis shows a control error.

Benefits

• 220 l/min nominal flow in size 25, with headroom up to 870 l/min maximum flow
• 350 bar operating pressure, suitable for press circuits with high holding pressure
• ±10 V command value on the on-board electronics, no separate amplifier card in the cabinet
• Internal pilot oil supply and internal pilot oil return, two fewer lines on the manifold
• Spool symbol R with a linear characteristic curve, flow follows the command value proportionally

Applications

The valve suits presses, forging equipment and test rigs where an axis runs under position or velocity control. The subplate mounting to ISO 4401-08-08-0-05 fits any standard size 25 mounting plate. NBR seals match hydraulic fluid HL.

Manufacturer

Bosch Rexroth, material number R901479295. The type code 4WRKE25R220L-3X/6EG24ETK31/A1D3M defines size, spool symbol, electronics and seal material without ambiguity.