Proportional Directional Valve 4WRKE27W8-500L-3X/6EG24K31/F1D3V - Bosch Rexroth R901274300

When a drive turns both ways under equal load, the spool must not open unevenly. Spool symbol W8 in the 4WRKE27W8-500L-3X/6EG24K31/F1D3V keeps both flow directions alike, at 500 l/min nominal flow and operating pressures up to 270 bar.

Benefits

• Spool symbol W8 frees the same cross section either way, so speed stays equal through a reversal.
• 500 l/min nominal flow in size 27 with a linear characteristic curve.
• Internal spool position feedback secures repeat accuracy up to 270 bar.
• A 4...20 mA command survives long cable runs, supply 24 VDC at a 7-pole connector (6 + PE) to EN 175201-804.
• External pilot oil supply and external return, FKM seals, 19.28 kg.

Applications

Typical duties are hydraulic motors on reels and drums as well as through-rod cylinders in rolling lines. Because the pilot stage is fed separately, it stays independent of working pressure. Range maximum flow of 1000 l/min leaves room for larger build stages.

Manufacturer

Bosch Rexroth, material number R901274300. In the type code 4WRKE27W8-500L-3X/6EG24K31/F1D3V the letters W8 mark the symmetrical spool, 500L the nominal flow and F1 the 4...20 mA command.