4WRZE16W6-150-7X/6EG24EK31/A1V

The 4WRZE16W6-150-7X/6EG24EK31/A1V proportional directional valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth for closed-loop hydraulic control. It directs flow to actuators and meters volume in response to an electronic command, providing precise motion in presses and test rigs. Valve size 16 defines the mounting envelope so the unit fits subplates of matching size, while the ISO 4401-07-06-0-94 mounting pattern streamlines installation on standardized manifolds. A nominal flow of 150 l/min at a 10 bar differential delivers enough oil for medium-capacity cylinders, and a 350 bar maximum operating pressure allows use in high-pressure circuits. The internal pilot oil supply feeds the control stage without extra plumbing, whereas an external pilot drain routes pilot fluid directly to tank and avoids case pressurization. Ports a, b, p, and t share a 20 mm diameter to sustain the specified flow rate, the return port T can withstand 250 bar to accommodate counterbalance valves, and the auxiliary port Y is limited to 30 bar to protect the control chamber.

The valve accepts a ±10 V command signal so analog controllers can position the spool proportionally to input voltage. Onboard electronics run from a 24 V DC supply; a continuous draw of 1.8 A sets the panel power budget, and a 3 A pulse capability accelerates the spool during rapid shifts. Electrical wiring uses a DIN EN 175201-804 plug, providing a keyed, vibration-resistant interface for power and control lines. An IP65 enclosure rating prevents dust ingress and low-pressure water spray from reaching internal coils in normal plant environments. With a weight of 13.6 kg, one technician can handle the unit during installation while still benefiting from a rigid housing that resists vibration. These electrical and environmental characteristics complete the hydraulic profile and support reliable service in automated hydraulic systems.