Proportional Directional Valve 4WRKE27W8-500L-3X/6EG24K31/F1D3M - Bosch Rexroth R901072883

On the 4WRKE27W8-500L-3X/6EG24K31/F1D3M both pilot supply and pilot return come from outside, through X and Y. The pilot level is therefore fixed whatever the main circuit does, and switching times stay the same even when the system collapses under load. Spool symbol W8 works linearly, with 500 l/min nominal flow and peaks to 1000 l/min.

Benefits

• External pilot supply through X and external return through Y for constant switching times.
• Spool symbol W8 with a linear curve at 500 l/min nominal flow.
• Up to 1000 l/min flow at operating pressures to 270 bar.
• 4...20 mA command input, immune to interference over long cable runs.
• NBR seals, 19.74 kg, mounting pattern ISO 4401-08-08-0-05.

Application

It serves large hydraulic plants with a separate pilot supply, such as press lines and rolling mills. Mineral oil of class HL is intended. The on-board electronics run on 24 VDC and are wired through a 7-pole plug to EN 175201-804.

Manufacturer

Bosch Rexroth AG, material number R901072883, product family 4WRKE, size 27.