Working Principle Of Pneumatic Actuator And Two Forms Of Air-open And Air-close

1. Working principle of pneumatic actuator

Pneumatic actuator is driven by air pressure acting on its piston to generate mechanical force to drive the actuator rod, thereby controlling the opening and closing of valves and the operation of other mechanical equipment. The actuator controls the air source to change the air pressure and the direction of the air path to achieve control of the actuator.

Pneumatic actuator is realized in conjunction with the air control device. The air control device achieves functions such as regulating pressure, regulating flow, controlling direction, switching devices, etc. by controlling the air path of the cylinder. The air control device is one of the core accessories of the pneumatic actuator.

2. Two forms of air-open and air-close

1. Air-open form

The air-open form refers to the working form when the pneumatic actuator drives the valve to open. Its main feature is that the actuator rod pushes the valve outward and ensures the opening of the valve through mechanical hooking.

The air-open form is mainly suitable for water treatment, gas transportation, mixed materials, etc., and has the advantages of high flexibility and high control accuracy. At the same time, the air-open form is suitable for use in scenarios such as high temperature, high pressure, and corrosive media.

2. Air-close form

The air-close form refers to the working form in which the pneumatic actuator drives the valve to close. Its main feature is that the actuator rod pulls the valve inward to achieve the closure of the valve.

The air-close form is mainly suitable for gas compression, decompression, laboratory liquid pipelines and other scenarios, and has the advantages of fast valve closing speed and good sealing. Moreover, this form can quickly close the valve in an emergency.

3. Application fields of pneumatic actuators

Pneumatic actuators are widely used in many fields, such as automatic control, industrial production, pipeline equipment, gas use, etc. It can realize the control of liquids and gases, ensure the effective execution of production processes, and improve production efficiency and quality.

In the field of automatic control, pneumatic actuators are widely used in control systems, fluid systems and automatic control modules. In the field of industrial production, pneumatic actuators are also used in automated production lines, automated processing equipment and other aspects. In the field of gas use, pneumatic actuators are used in gas transportation, pneumatic three-way, pneumatic reset and other scenarios.