Proportional Directional Valve 4WRLE25V1-400L-4X/VPY/24A1 - Bosch Rexroth R901537975

When oil runs permanently hot, NBR seals age faster than the rest of the valve. This version of the 4WRLE25V1-400L is therefore sealed with FKM and controls 400 l/min nominal flow at up to 350 bar, with internal supply and external pilot return.

Benefits

• FKM seals, rated for higher continuous temperatures than NBR versions.
• Internal pilot supply, external pilot return, independent of back pressure in the tank port.
• 400 l/min nominal flow, up to 1250 l/min in size 25.
• 350 bar operating pressure, spool symbol V1 with internal piston position feedback.
• Command value plus/minus 10 V into on-board electronics, 24 V DC supply.
• 19.42 kg weight, connection diagram ISO 4401-08-08-0-05, CE conformity.

Applications

The version suits foundry plants, forging presses and test benches with high oil temperature in continuous duty. The external pilot return runs to tank without a restrictor. Four ports and three switching positions match the standard layout of the series.

Manufacturer

Bosch Rexroth, material number R901537975, product family 4WRLE. Electrical connection through a 7-pole connector (6 + PE) to EN 175201-804.