Proportional Directional Valve 4WRKE25W6-350L-3X/6EG24EK31/A1D3M - Bosch Rexroth R900718919

Anyone moving an axis at 350 l/min who still wants a gentle approach picks symbol W6. The 4WRKE25W6-350L-3X/6EG24EK31/A1D3M combines that with internal pilot oil supply and a dedicated return port, operating pressure up to 350 bar in size 25.

Key benefits

• Spool symbol W6 at 350 l/min nominal flow, maximum flow through the valve 870 l/min.
• Internal pilot oil supply, external return decouples the pilot stage from tank pressure.
• Plus minus 10 V command into the on-board electronics, 24 VDC supply.
• 3 switching positions and 4 ports, connection pattern ISO 4401-08-08-0-05.
• Internal spool position feedback, linear characteristic curve, 17.88 kg weight.
• NBR seals for HL hydraulic fluid, 7-pole connector (6 + PE) to EN 175201-804.

Applications

The variant works in feed and lifting axes of machine tools, saws and clamping systems. High nominal flow carries the rapid stroke, the plus minus 10 V command range gives fine resolution on approach. An external pilot return keeps the null position stable even when warm, viscous oil sits in the tank channel.

Manufacturer

Bosch Rexroth, material number R900718919. The type code 4WRKE25W6-350L-3X/6EG24EK31/A1D3M states size 25, spool symbol W6, 350 l/min nominal flow and series 3X.