4WRZ10W6-85-7X/6EG24ETK4/D3V

The 4WRZ10W6-85-7X/6EG24ETK4/D3V valve is produced by Bosch Rexroth for the WRZ Proportional Directional Valves series and controls actuator speed and direction in hydraulic automation systems. The W6 spool profile meters flow symmetrically, allowing proportional bidirectional control. A nominal flow of 85 l/min at a 10 bar pressure drop supports medium-flow circuits without adding throttling losses. The main stage tolerates operating pressures up to 315 bar so it can be installed on high-pressure lines used in presses or injection molding machines. The solenoid is energized by a 24 V DC supply, which is common in industrial control panels. Peak coil current is limited to 1.5 A, matching typical output capacity of proportional amplifiers while preventing overheating. A resistance of 4.8 Ω at 20 °C defines coil load and helps designers size the drive electronics. Continuous 100 % duty rating together with a permissible coil temperature of 150 °C permits uninterrupted operation during long production runs.

The valve mounts on a subplate, simplifying removal and replacement without disturbing hard plumbing. Its interface follows the ISO 4401-05-05-0-94 porting pattern, ensuring interchangeability with standard CETOP 5 manifolds. Electrical connection is made through a DIN EN 175301-803 plug, providing quick disconnection during service. An IP65 ingress rating shields the coil and connector from dust and low-pressure water jets, supporting installation in wash-down areas. Internal pilot oil supply eliminates external feed lines, reducing circuit complexity. Internal pilot oil drain returns fluid directly to the tank passage inside the subplate, keeping external leakage hoses unnecessary. FKM seals resist mineral oils and elevated temperatures, extending service intervals. A built-in ZDR 6 DP0-4X/40YM-W80 pressure-reducing valve stabilizes pilot pressure so spool positioning remains consistent under fluctuating main pressures.