4WRTE27Q2-500P-4X/6EG24K31/A5M

The 4WRTE27Q2-500P-4X/6EG24K31/A5M valve is produced by Bosch Rexroth within the 4WRTE Directional Control Valves series. It modulates spool position to steer flow in high-performance hydraulic automation tasks. Size 27 gives a large internal cross-section suitable for heavy equipment service. A rated flow of 500 l/min supports steady actuator movement at standard operating points, while a P flow characteristic provides linear response with fine control to simplify tuning in closed-loop systems. The valve withstands operating pressures up to 270 bar so it can be installed in main pressure lines without separate pressure reduction. It mounts on manifolds following the ISO 4401-08-08-0-05 pattern which standardizes port layout across machines. Integrated spool position monitoring provides feedback for diagnostics and closed-loop control, and an IP65 enclosure protects the electronics from dust and water spray encountered in mobile or industrial environments. The assembly weighs 17 kg, permitting rigid installation without additional support brackets.

The electrical section uses a 24 V DC supply to power the onboard amplifier, and the A5 electronics interface aligns the valve with Rexroth motion controllers that support this coding. A DIN EN 175201-804 (K31) connector terminates the wiring so installation requires only a standard 6+PE plug. The drive circuit draws up to 1.6 A, allowing use with common power supplies yet maintaining adequate force on the pilot stage. Command signals are accepted in a ±10 V range, enabling direct linkage to proportional outputs from PLCs; the same ±10 V level is returned as an actual value output to confirm spool position. Continuous operation is possible because the design is rated for a 100 % relative duty cycle. During transient demand peaks the hydraulic section can pass up to 1000 l/min, though system designers should operate near the rated figure for optimal accuracy.