Proportional Directional Valve 4WRKE10W8-25L-3X/6EG24EK31/F1D3M - Bosch Rexroth R901399670

Pulsating tank pressure disturbs the pilot stage first. The 4WRKE10W8-25L-3X/6EG24EK31/F1D3M takes its pilot oil internally but drains it through a dedicated line, which keeps control quiet at 25 l/min nominal flow.

Benefits

• Pilot oil supplied internally, drained externally, the pilot return stays separate from main channel tank pressure.
• 25 l/min nominal flow, up to 150 l/min in size 10.
• 4...20 mA command into the on-board electronics, supplied at 24 VDC.
• 315 bar maximum operating pressure, ISO 4401-05-05-0-05 pattern, three switching positions.
• Spool symbol W8, 8.38 kg, wired through a 7-pole (6 + PE) plug to EN 175201-804.

Applications

This pilot variant pays off on systems with a long shared return manifold, such as presses and multi-axis test rigs. Filters and coolers in the return line also leave the pilot stage unaffected. Changing to a different pilot variant is not possible without reworking the subplate.

Manufacturer

Bosch Rexroth, material number R901399670. EK31 denotes internal pilot oil supply with external pilot oil return, D3M the design of the pilot stage.