The 4WE10G31B/CG12N9Z5L Type Solenoid-Operated Directional Valve is a high-performance hydraulic directional control valve designed to control the start, stop, and flow direction of hydraulic oil in hydraulic systems. Featuring electromagnetic actuation and a precision-machined spool structure, the valve provides fast switching response, reliable operation, and excellent durability. It is widely used in hydraulic power units, construction machinery, industrial automation equipment, machine tools, and metallurgical systems.

Working Principle

The 4WE10G31B directional valve controls hydraulic fluid flow by shifting the internal spool through electromagnetic force generated by the solenoid coils.

When the left or right solenoid is energized, the spool moves to the corresponding switching position, directing oil flow between pressure port (P), working ports (A and B), and tank port (T). When the solenoid is de-energized, the spring mechanism automatically returns the spool to the center position.

This allows precise control of:

• Hydraulic cylinder extension and retraction
• Hydraulic motor forward and reverse rotation
• Start and stop functions of hydraulic actuators
• Directional switching of hydraulic circuits

Product Features

• Solenoid-operated directional control
• 4-way, 3-position spool design
• Fast response and stable switching performance
• High pressure and large flow capacity
• Compact structure and easy installation
• Low pressure loss and energy-efficient operation
• Manual override available for emergency operation
• Long service life and reliable performance
• Suitable for continuous industrial applications