Solenoid valve in principle is divided into three categories: direct action, step by step direct action, pilot type. And from the disc structure and material on the difference and principle of the difference is divided into six branches: direct acting diaphragm structure, step by step direct acting diaphragm structure, pilot diaphragm structure, direct acting piston structure, step by step direct acting piston structure, pilot plug structure
A, direct acting solenoid valve
Principle: when energized, the solenoid valve coil produces electromagnetic force to close the parts from the seat, the valve open; Power, the electromagnetic force disappears, the spring force to close the pressure on the seat, the valve closed. Features: in vacuum, negative pressure, zero pressure can work normally, but the diameter is generally not more than 25mm.
Structure features edit speech
1, direct acting piston type zero pressure start
2, compact design, low temperature rise, low noise;
3. Quick response and high frequency;
4, Chinese process, export series, reliable quality;
Mode of operation
Power normally open, power off
