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Instrumentation » Industrial Valves » Cotrol valve Actuator

Cotrol valve Actuator

عمل کننده دیافراگمیAn actuator or actuator in a control loop is simply a tool that converts one form of energy into a rotational or longitudinal motion and causes a force to be applied. Turns it into a circular or longitudinal motion.

In your valve control or control valve, we will need one of these types of actuators to move the valve stem and open and close it automatically and remotely via a control loop. For example, the most common type of actuator or pneumatic actuator is diaphragm type, which is one of the oldest, simplest and safest examples of actuators and pneumatic energy from air pulse, which is usually 3 to 15 psi, by moving the back of the diaphragm in longitudinal motion. To open and close the rose valve or valves with this mechanism.

عمل کننده روتاریOther examples of pneumatic actuators include rotary or rotating models for controlling rotating shaft valves, such as a butterfly valve or a ball. Pneumatic piston actuators are a type of pneumatic actuator similar to a diaphragm.

 

In other examples, we see the use of electric and motor actuators that with direct or alternating power of single-phase or three-phase and with the help of a gearbox designed to transfer electrical energy to a period with proportional torque and at an angle to open and close. Converts even if needed. Depending on the feedback they receive from the open and closed position and the design mechanism, the electric actuators can be used in open or closed single or intermediate conditions. In open and closed samples, two limit switches are used to control the open and closed position. And prevent excessive pressure on the valve, and in gradual samples of feedback from a potentiometric positioner can have proper control of the valve position.

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