Pilot operated solenoid valve

When the pilot operated solenoid valve is powered on, the electromagnetic force of the coil will lift the valve stem, open the pilot valve port, and release the pressure in the upper chamber of the solenoid valve through the pilot hole, thus forming a high and low pressure difference around the main valve core. This pressure difference causes the fluid pressure to push the main valve core upwards, opening the main valve port. When the solenoid valve is powered off, the spring force and the gravity of the main valve core will reset the valve stem, close the pilot hole, and the main valve core will move downward to close the main valve port. At this point, the pressure in the upper chamber of the solenoid valve increases, and the fluid pressure pressurizes the main valve core, ensuring better sealing. The pilot operated solenoid valves produced by Shanghai Meiyanyi Pump Valve are widely used in key systems such as high temperature and high pressure in industrial automation control. Welcome new and old customers to call or write to inquire about solutions.