随着工业的发展，电动阀的出现比气动阀晚，但其应用范围越来越广。由于不需要气源，安装使用方便。只要电源和控制信号接通，就可以工作。下面我来为您介绍电动阀的结构和功能。
电动阀的典型形状，由两个可拆卸的执行器和一个调节阀(调节机构)组成。上部为执行机构，接收来自调节器的0-10madc或4-20madc信号，转换成相应的线性位移，推动下部调节阀动作，直接调节流体流量。各种电动阀的执行器基本相同，但调节阀(调节机构)的结构因操作条件不同而类型很多，最常用的是直通单阀座和直通双阀座。
电动阀是由调节阀体和各种电动执行机构组成的工业现场执行仪表。接收来自调节器的4-20mA或脉冲信号，进行闭环控制，实现流量、压力、温度、液位等参数的自动控制。它还可以选用智能电动执行机构，与DCS、PLC等设备实现数字化传输，形成更加智能化的控制制造系统。电动调节阀有两种供电电压：220 V和380 V。电动阀、电动单阀座调节阀和电动小流量调节阀的流量特性是等百分比、线性、快等三种。
The structure and function of electric valves
With the development of industry, electric valves have emerged later than pneumatic valves, but their application scope is becoming wider and wider. Due to the lack of air supply, it is easy to install and use. As long as the power and control signals are connected, it can work. Below, I will introduce the structure and functions of electric valves to you.
The typical shape of an electric valve consists of two detachable actuators and a regulating valve (regulating mechanism). The upper part is an actuator that receives 0-10madc or 4-20madc signals from the regulator, converts them into corresponding linear displacement, and pushes the lower regulating valve to act, directly regulating the fluid flow. The actuators of various electric valves are basically the same, but the structure of regulating valves (regulating mechanisms) varies depending on the operating conditions, with the most commonly used being through single seat and through double seat.
Electric valve is an industrial on-site execution instrument composed of a regulating valve body and various electric actuators. Receive 4-20mA or pulse signals from the regulator for closed-loop control, achieving automatic control of parameters such as flow, pressure, temperature, and liquid level. It can also use intelligent electric actuators to achieve digital transmission with DCS, PLC and other devices, forming a more intelligent control manufacturing system. There are two types of power supply voltages for electric control valves: 220 V and 380 V. The flow characteristics of electric valves, electric single seat regulating valves, and electric small flow regulating valves are equal percentage, linear, and fast.