4WRZ10W6-50-7X/6EG24N9ETK4/M

The 4WRZ10W6-50-7X/6EG24N9ETK4/M proportional directional valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth for controlled hydraulic actuation. It meters flow and direction through a spool that is positioned by a solenoid operating on a supply voltage of 24 V DC, providing direct compatibility with common machine control power rails. The coil resistance is 4.8 Ω at 20 °C, establishing the electrical load that the drive amplifier must deliver. Maximum solenoid current is limited to 1.5 A, protecting the winding and defining peak actuation force. A DIN EN 175301-803 connector gives a standardized electrical interface for quick wiring. The valve carries an IP65 rating so it tolerates dust and low-pressure wash-down conditions. A concealed manual override allows mechanical shifting during commissioning or power loss. Pilot supply and drain are both internal, simplifying external piping. NBR seals are fitted to suit mineral oil service, and an ambient temperature limit of 70 °C defines permissible installation environments.

The hydraulic section of the 4WRZ10W6-50-7X/6EG24N9ETK4/M withstands a main-stage operating pressure of 315 bar, allowing use on high-pressure power units. A nominal flow capacity of 50 l/min at a 10 bar pressure drop sets the performance envelope for cylinder or motor circuits. The return port T can accommodate internal back-pressure up to 30 bar, which must be observed when sizing the tank line. The mounting interface follows ISO 4401-05-05-0-94, enabling direct installation on standard NG10 subplates. Maximum hysteresis of 6 % limits flow deviation between increasing and decreasing commands, supporting repeatable motion profiles. The valve is designed for mineral oils of the HL or HLP categories according to DIN 51524, ensuring lubrication and compatibility with the installed seals. Assembled mass is 7.8 kg in subplate configuration, influencing handling during maintenance and the strength requirements of the mounting surface.