Proportional Directional Valve 4WRTE25W8-350P-4X/6EG24K31/A1M - Bosch Rexroth R901180189

Hydraulic motors and through-rod cylinders need a spool that frees the same cross section in both flow directions. Spool symbol W8 in the 4WRTE25W8-350P-4X/6EG24K31/A1M does that at 350 l/min nominal flow and operating pressures up to 350 bar.

Benefits

• Spool symbol W8 opens equally both ways, which matches motors and through-rod cylinders.
• 350 l/min nominal flow with 3 switching positions and internal spool position feedback.
• External pilot oil supply and external return keep pilot pressure clear of working pressure.
• Plus or minus 10 V command into on-board electronics, 24 VDC at a 7-pole connector (6 + PE) to EN 175201-804.
• Mounting pattern ISO 4401-08-08-0-05, NBR seals for HL fluid, 18 kg.

Applications

The valve drives rotary units on reels, mixers and travel gear as well as cylinders with a continuous piston rod. A symmetrical spool prevents speed jumps when direction reverses. For the pilot circuit a separate supply of stable pressure is assumed.

Manufacturer

Bosch Rexroth, material number R901180189. The type code 4WRTE25W8-350P-4X/6EG24K31/A1M states size 25, spool symbol W8, 350 l/min nominal flow and component series 4X.