Proportional Directional Valve 4WRTE32E400L-4X/6EG24K31/A1V - Bosch Rexroth R901131400

A control axis needs feedback on where the spool actually stands, not just a command value. The 4WRTE32E400L-4X senses spool position internally, closing the loop in its own electronics while metering 400 l/min at 350 bar.

Benefits

• Internal spool position feedback lets the electronics correct deviation rather than merely command it.
• 400 l/min nominal flow against a flow limit of 1600 l/min in size 32.
• ±10 V command on 24 VDC, connected by a 7-pole connector (6 + PE) to EN 175201-804.
• FKM seals on HL hydraulic fluid at 350 bar operating pressure.
• 37.06 kg on the ISO 4401-10-09-0-05 pattern, three switching positions, four ports.
• Linear design with spool symbol E, pilot-operated, external pilot supply plus external drain.

Application

The valve belongs on axes holding a position or a velocity in closed loop, testing machines or rolling stands among them. External pilot supply together with external pilot drain separates the control circuit from the main circuit, which supports control quality when system pressure varies. At 400 l/min it sits between the two larger steps within size 32.

Manufacturer

Bosch Rexroth, material number R901131400, product family 4WRTE. It is laid out for subplate mounting to ISO 4401-10-09-0-05 with on-board electronics, so an external amplifier card stays out of the cabinet.