Proportional Directional Valve 4WRZE25W8-325-7X/6EG24N9K31/F1D3M - Bosch Rexroth R901014940

Next to frequency converters and mill drives a voltage signal is easily disturbed. The 4WRZE25W8-325-7X/6EG24N9K31/F1D3M works with 4 to 20 mA instead and meters 325 l/min nominal flow at 350 bar, with its own pilot supply and an external return.

Benefits

• A 4 to 20 mA current command stays immune next to converters and large drives.
• Both pilot paths external, matching plants with a filtered control oil circuit.
• Nominal flow 325 l/min against a plant maximum of 870 l/min.
• Spool symbol W8, 3 switching positions, connection diagram ISO 4401-08-08-0-05, 4 ports.
• Operating pressure 350 bar, NBR seals, 20.62 kg, UKCA to SI2016/1091.

Technical data

Applications

The valve positions pressing cylinders on high pressure grinding rolls, crusher gaps and flap drives in the building materials industry. A separate pilot circuit protects the pilot stage from the dirt-prone working circuit. The concealed manual override helps to clear a blockage.

Manufacturer

Bosch Rexroth, material number R901014940. Datasheet RE 29115 describes design and characteristic curves, RE 07600-B places the valve in the hydraulics range.