Excavator relief valve SK200-5 proportional solenoid valve YN22V00029F1

         Excavator solenoid valve is composed of electromagnetic coil and magnetic core, including one or several holes of the valve body, the use of electromagnet suction principle to control the movement of the valve core, according to the instruction of the actuator reasonable distribution of hydraulic oil to achieve related actions, control and adjust the hydraulic oil flow, direction, speed and other parameters in the hydraulic system

The number can ensure the flexibility and accuracy of the control.

1. Working principle of excavator solenoid valve
The excavator mainly uses direct-acting solenoid valve, which has the advantages of convenient control, fast action, easy to achieve remote control, and can work normally under vacuum, negative pressure and zero pressure.
The excavator solenoid valve has a closed chamber inside, the valve body is in the middle of the chamber, and the two ends of the valve body are configured with electromagnets according to the needs, or only one end is configured with electromagnets. Using the magnetic force generated by the principle of inductance, the control spool moves to achieve the oil circuit reversal, when the electromagnet coil is energized, the electromagnet will pull in the opposite direction, and push the spool to move in the direction of suction, thereby blocking or exposing different oil holes, and the oil will enter different pipelines according to the instructions. If the solenoid coil of the solenoid valve is burned out or cut off, it cannot generate magnetic force, and the valve core cannot be moved, and the excavator cannot perform related operations.