Solenoid valve working principle

电磁阀（电磁阀）是用电磁控制的工业设备，是用来控制流体的自动化基础元件，属于执行器，并不限于液压、气动。用在工业控制系统中调整介质的方向、流量、速度和其他的参数。电磁阀可以配合不同的电路来实现预期的控制，而控制的精度和灵活性都能够保证。电磁阀有很多种，不同的电磁阀在控制系统的不同位置发挥作用，最常用的是单向阀、安全阀、方向控制阀、速度调节阀等。

Electromagnetic valve (Electromagnetic valve) is an electromagnetic control of industrial equipment, is used to control the automation of the basic components of the fluid, is an actuator, not limited to hydraulic, pneumatic. Used in industrial control systems to adjust the direction, flow, speed, and other parameters of the medium. Solenoid valve with different circuits to achieve the desired control, and control accuracy and flexibility can be guaranteed. There are many kinds of electromagnetic valve, different electromagnetic valve in the control system at different locations to play a role, the most commonly used are one-way valve, safety valve, directional control valve, speed control valve.

Solenoid valve in a closed chamber, in different locations to open a hole, each hole connecting different pipe, cavity intermediate piston, both sides are two electromagnets, which face the magnet coils body will be attracted to which side, to open or close the oil drain hole through different control valve moves, and the oil inlet hole Shichang opened, hydraulic oil will enter the drain pipes of different, then the oil pressure to push the piston cylinder, piston and piston rod, the piston rod drives the mechanical device. Thus, the mechanical movement is controlled by controlling the current of the electromagnet.