Proportional Directional Valve 4WRLE25E400LJ-4X/VPY/24A1 - Bosch Rexroth R901556062

If you need to hold the spool itself under closed-loop position control rather than merely move the axis, internal piston position feedback is what it takes. This size 25 valve brings it, converts 400 l/min nominal flow and allows up to 1250 l/min on the valve side.

Benefits

• Internal piston position feedback, giving high accuracy and low hysteresis of the spool position
• 400 l/min nominal flow against a valve maximum of 1250 l/min
• Internal pilot feed without a dedicated pilot pump, external return through Y
• Spool symbol E, three switching positions, operating pressure up to 350 bar
• ±10 V command value on the on-board electronics, mass 19.34 kg, CE conformity

Application

This design is asked for in fast position and force control loops, for example on forming presses, forging manipulators and servo-hydraulic test cylinders. The external Y return keeps pilot control free of back pressure in the collecting return line. The ISO 4401-08-08-0-05 mounting pattern matches the usual size 25 standard.

Manufacturer

Bosch Rexroth, material number R901556062. The full type code 4WRLE25E400LJ-4X/VPY/24A1 defines size, spool symbol and pilot circuit unambiguously.