The electric regulating valve is mainly composed of an electric actuator and a regulating valve body. By receiving signals from the industrial automation control system, it drives the valve to change the cross-sectional area between the valve core and valve seat, control process parameters such as flow rate, temperature, and pressure of the pipeline medium, and achieve remote automatic control. The equal percentage characteristic is optimal, with stable regulation and good regulation performance.

电动调节阀结构特点：

Structural characteristics of electric control valve:

1、伺服放大器采用深度动态负反馈，可提高自动调节精度。

1. The servo amplifier adopts deep dynamic negative feedback, which can improve the accuracy of automatic adjustment.

2、电动操作器有多种形式，可适用于4~20mA。DC或0~10mA.DC。

2. Electric operators come in various forms and can be applied to 4-20mA. DC or 0-10mA.DC.

3、可调节范围大，固有可调比为50，流量特性有直线和等百分比。

3. The adjustable range is large, with an inherent adjustable ratio of 50, and the flow characteristics are linear and equal percentage.

4、电子型电动调节阀可直接由电流信号控制阀门开度，无需伺服放大器。

4. The electronic electric regulating valve can be directly controlled by the current signal to control the valve opening, without the need for a servo amplifier.

5、阀体按流体力学原理设计的等截面低流阻流道，额定流量系数增大30%。

5. The valve body is designed according to the principle of fluid mechanics, and the rated flow coefficient increases by 30%.

电动调节阀结构分类：

Classification of electric control valve structures:

电动调节阀一般可分为单座式和双座式结构，

Electric control valves can generally be divided into single seat and double seat structures,

电动单座式调节阀适用于对泄漏要求严格，阀前后压差低及有一定粘度和含纤维介质的工作场合，电动双座式调节阀具有不平衡力小，允许压差大，流通能力大等待点，适用于泄漏量要求不严格的场合。

The electric single seat regulating valve is suitable for working occasions with strict leakage requirements, low pressure difference before and after the valve, and certain viscosity and fiber containing media. The electric double seat regulating valve has a small imbalance force, allows a large pressure difference, and a large flow capacity waiting point, making it suitable for occasions with less strict leakage requirements.

电动调节阀工作原理：

Working principle of electric control valve:

电动调节阀根据调节部位信号，自动控制阀门的开度，从而达到介质流量、压力和液位的调节。以更常用的4-20mA电流信号来说，在控制系统给电动调节阀的信号为4mA的时候，调节阀处于全闭状态，而给其20mA信号的时候，调节阀处于全开状态。4-20mA中间不同的信号数值对应不同的调节阀开度，即控制系统在给其12mA信号的时候调节阀的开度为50%。根据自己的工况介质选择适用的流量系数，就可以算出调节阀每个开度所对应的流量、压力。从而达到调节阀对工况介质的调节要求。

The electric regulating valve automatically controls the opening of the valve based on the signal of the regulating part, thereby achieving the regulation of medium flow, pressure, and liquid level. For the most commonly used 4-20mA current signal, when the control system sends a 4mA signal to the electric regulating valve, the regulating valve is in the fully closed state, while when a 20mA signal is given, the regulating valve is in the fully open state. The different signal values between 4-20mA correspond to different valve openings, meaning that the control system adjusts the valve opening to 50% when giving it a 12mA signal. By selecting the appropriate flow coefficient based on one's own operating medium, the flow rate and pressure corresponding to each opening of the regulating valve can be calculated. In order to meet the regulatory requirements of the regulating valve for the working medium.