SV90-G39 solenoid valve Excavator loader proportional valve

Solenoid valve is an industrial equipment controlled by electromagnetic, is used to control the basic components of fluid automation, belongs to the actuator, is not limited to hydraulic, pneumatic. Used in industrial control systems to adjust the direction of media, flow, speed and other parameters. The solenoid valve can be combined with different circuits to achieve the desired control, and the precision and flexibility of the control can be guaranteed. There are many kinds of solenoid valves, different solenoid valves play a role in different positions of the control system, the most commonly used are check valves, safety valves, direction control valves, speed regulating valves and so on.

Working principle of solenoid valve

Solenoid valve working principle, solenoid valve has a closed chamber, in different positions open through the hole, each hole leads to a different tubing, the middle of the chamber is the valve, both sides are two electromagnets, which side of the magnet coil energized valve body will be attracted to which side, by controlling the movement of the valve body to block or leak different oil discharge holes, and the oil inlet hole is usually open, The hydraulic oil will enter a different drain pipe, and then push the oil through the pressure of the oil, the piston drives the piston rod, and the piston rod drives the mechanical device. In this way, mechanical motion is controlled by controlling the current of the electromagnet.

Solenoid valves are classified according to principle

Solenoid valves at home and abroad are divided into three categories in principle (namely: direct acting type, step direct acting type, pilot type), and are divided into six sub-categories from the difference in valve disc structure and material and principle (direct acting diaphragm structure, step multiple plate structure, pilot film structure, direct acting piston structure, step direct acting piston structure, pilot piston structure).