Proportional Directional Valve 4WRKE32W8-400L-3X/6EG24TK31/A1D3M - Bosch Rexroth R901223181

Some power units have a dedicated pilot pressure pump but no separate return to tank. That is exactly what this version of the 4WRKE32W8-400L is built for, with external pilot supply and internal pilot return, at 400 l/min nominal flow.

Benefits

• External pilot supply, internal pilot return, matched to power units with their own pilot pump.
• Command value plus/minus 10 V into on-board electronics, no external amplifier.
• 400 l/min nominal flow, up to 1550 l/min in size 32.
• Spool symbol W8, linear characteristic curve, internal piston position feedback.
• 350 bar operating pressure, NBR seals, hydraulic fluid HL.
• 37.2 kg weight, connection diagram ISO 4401-10-09-0-05.

Applications

The version fits presses and test benches whose pilot pressure comes from a dedicated circuit while the tank port stays unloaded. Pilot pressure then holds steady through load changes in the main circuit. Three switching positions across four ports.

Manufacturer

Bosch Rexroth, material number R901223181, product family 4WRKE. Supply 24 V DC through a 7-pole connector (6 + PE) to EN 175201-804.