Valve electric actuators are divided into two categories: straight stroke and angular stroke. The electric actuator is driven by a power source, and the main circuit is used for controlling the opening and closing of valves, as well as for regulating the flow of pipeline media. Basic parameters and performance of electric actuators: Control voltage: AC220V, 50/60HZ, DC24V, AC380V, DC220V or other specified parameters.

The torque required for valve opening and closing determines the output torque chosen for electric actuators. Generally, it is proposed by the user or selected by the valve manufacturer. As an actuator manufacturer, they are only responsible for the output torque of the actuator. The torque required for normal valve opening and closing is determined by factors such as valve diameter and working pressure, but there are differences in processing accuracy and assembly process among valve manufacturers, So the torque required for valves of the same specification produced by different manufacturers also varies, even for valves of the same specification produced by the same valve manufacturer. When selecting the type, selecting too small a torque for the actuator can cause the valve to not open and close normally. Therefore, it is necessary to choose a reasonable torque range for the electric actuator.

The pipeline of pneumatic ball valve is mainly used to cut off fast, distribute and change the direction of the medium. Pneumatic ball valve is a new type of valve. So what are its advantages and disadvantages? Below, let me explain to you: 1. The fluid resistance is small, and its resistance coefficient is equal to that of pipe sections of the same length. 2. Simple structure, small size, and light weight.

When a double acting pneumatic actuator is opened or closed, it is achieved by injecting air pressure, while when a single acting pneumatic actuator is opened or closed, it can be achieved through spring recovery. Double acting pneumatic actuators are generally used in conditions with low leakage requirements, while single acting pneumatic actuators are more commonly used in hazardous conditions. They can quickly close or open the valve in case of sudden failure due to loss of air supply. In terms of price, single acting pneumatic actuators are higher than double acting ones.

Principle of electric ball valve: Electric ball valve is a combination of plug type ball valve and electric actuator. The valve body structure of the ball valve is a valve core with a rotation of 90 degrees, and the electric actuator is a standard signal with an input of 0-10 milliamperes. The motor group drives the gear turbine worm angle torque to open and adjust the valve. Its use mainly relies on the adjustment operation of electrical flow.