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電磁閥（Solenoid valve）是用電磁控制的工業設備，主要特點安全、方便、型號多、用途廣，

是用來控制流體的自動化基礎元件，屬于執行器，并不限于液壓、氣動。用在工業控制系統中

調整介質的方向、流量、速度和其他的參數。電磁閥可以配合不同的電路來實現預期的控制，

而控制的精度和靈活性都能夠保證。電磁閥有很多種，不同的電磁閥在控制系統的不同位置

發揮作用，最常用的是單向閥、安全閥、方向控制閥、速度調節閥等。

Solenoid valve is an industrial equipment controlled by electromagnetism. It is safe,

convenient, multi-type and widely used,is used to control the basic components of fluid

 automation, belongs to the actuator, not limited to hydraulic, pneumatic. Used in industrial control systems

Adjust the direction of the medium, flow, speed and other parameters. Solenoid valves can be used with

different circuits to achieve the desired control,the control accuracy and flexibility can be guaranteed.

There are many kinds of solenoid valve, different solenoid valve in the control system in different locations