Proportional Directional Valve 4WRTE27E500L-4X/6EG24EK31/A1M - Bosch Rexroth R901174766

Where a roll has to stay evenly loaded for hours, the repeat accuracy of the valve decides the result. The 4WRTE27E500L-4X/6EG24EK31/A1M works with internal spool position feedback, a ±10 V command value and 500 l/min nominal flow, with internal pilot supply and external pilot return.

Benefits

• A ±10 V command value connects straight to the analogue outputs of common axis controllers.
• Internal spool position feedback keeps the characteristic curve constant over the whole travel.
• External pilot return decouples the pilot stage from back pressure in the tank line.
• Nominal flow 500 l/min, maximum 1000 l/min, 270 bar operating pressure in size 27.
• Spool symbol E, 3 switching positions, 4 ports, connection diagram ISO 4401-08-07-0-05.
• 7-pole connector (6 + PE) according to EN 175201-804, 24 V DC, NBR seals, 19.5 kg.

Applications

The valve positions press rolls, calenders and web tension axes in paper and film production. Lifting gear in packaging lines with long running times also benefits from the stable characteristic. Internal pilot supply saves a line in an already crowded power unit bay.

Manufacturer

Bosch Rexroth, material number R901174766. The type code 4WRTE27E500L-4X/6EG24EK31/A1M states the 4WRTE series, size 27, spool symbol E and 500 l/min nominal flow.