Proportional Directional Valve 4WRTE25E1-220L-4X/6EG24EK31/F1M - Bosch Rexroth R901098188

For the position control of the main spool to work cleanly, no varying back pressure may build up in the spring chamber. This version therefore drains pilot oil externally while taking it internally, and provides 220 l/min nominal flow at 350 bar.

Benefits

• External pilot drain keeps the spring chamber free of fluctuating tank back pressure.
• Internal pilot supply saves the feed line on the manifold.
• 220 l/min nominal flow, up to 870 l/min maximum, 350 bar operating pressure.
• Internal position control with a linear curve and 4...20 mA command.
• On-board electronics, 24 VDC supply, ISO 4401-08-08-0-05 connection diagram.

Applications

The version makes sense on systems with a shared return or a return filter, where tank pressure rises with the number of active consumers. Examples are hydraulic stations in plant engineering and press power units with several axes. The valve weighs 18 kg and runs on HL hydraulic fluid.

Manufacturer

Bosch Rexroth lists this product under material number R901098188.