Rexroth 4WE10L5X/HG24N9K4/M Directional Valve - Parameter Table

Rexroth 4WE10L5X/HG24N9K4/M Directional Valve - FAQ

Q1: What is the unique feature of the "L5X" spool?

A:​ The "L5X" spool provides a true "open center" function. In the neutral (spring-centered) position, it connects all four ports (Pressure P, work ports A & B, and Tank T) together, allowing fluid to circulate freely from the pump to the tank.

Q2: What is this "open center" configuration typically used for?

A:​ It is a standard configuration for many simple hydraulic systems. The primary benefit is that it allows the hydraulic pump to unload to the tank with minimal pressure drop when the valve is in neutral, which conserves energy and reduces heat generation. The connected actuator (cylinder or motor) is also free to move ("float").

Q3: How is the valve operated?

A:​ It is controlled by a single 24V DC solenoid ("HG24N9K4" coil). Energizing the solenoid shifts the spool to one working position. De-energizing it allows internal springs to return the spool to the open-center neutral position. A manual override is provided for testing.

Q4: What are the pressure and flow ratings?

A:​ Maximum operating pressure: 315 bar. Maximum recommended flow rate: 60 liters per minute.

Q5: What are the electrical specifications?

A:​ The solenoid operates on 24V DC, with a protection class of IP65. Please refer to the official data sheet for exact power consumption and current ratings.