Proportional Directional Valve 4WRZE25E220-7X/6EG24N9K31/F1M - Bosch Rexroth R901110477

A separate pilot circuit keeps the pilot stage independent of whatever the working pressure is doing. That is what this version is built for: pilot oil comes from outside and returns externally, while the size 25 valve controls 220 l/min nominal flow at up to 350 bar.

Benefits

• External pilot supply holds the pilot pressure steady even when working pressure collapses during a cycle.
• External pilot return decouples the pilot stage from back pressure in the tank line.
• 220 l/min nominal flow at 350 bar, with 870 l/min available as maximum flow.
• 4...20 mA command keeps the signal path undistorted over long cable runs.
• On-board electronics and a 7-pole connector (6 + PE) to EN 175201-804 keep the wiring simple.

Applications

The version is used in plants with a central pilot supply, for example in rolling mills, press lines and large test benches. Separate filtration of the pilot circuit keeps the pilot stage clean even when the working circuit is heavily loaded. The valve weighs 20.24 kg.

Manufacturer

This product comes from Bosch Rexroth and carries material number R901110477. Further data on curves and installation is provided by data sheet RE 29115 and RE 07600-B.