Popularly recognized as a highly efficient and reliable source of motion and process control, a pneumatic actuator is among the most common engineering devices. In essence, it is considered very important to hundreds of various industries, most especially for applications where the opening and closing of valves takes place. This device is also very useful in uses that involve ignition risk. So, what this device actually is and how it works?
Technically, a pneumatic actuator is a tool that converts compressed air into kinetic energy. Inside the industry, this tool is largely recognized by various names such as pneumatic cylinder, air cylinder, or air actuator. Though different, they are all the same and refer to the same device. It comprises a piston, a valve or port, and a cylinder that converts energy into mechanical motions. This all depends on whether your application uses either a linear or rotary actuator.
In comparison, a linear actuator is very suitable for fitting to angle seat control vale that is made for high temperature and steam application. On the other hand, a pneumatic rotary actuator is a better option for a quarter-turn valve.
When it comes to its working principle, a pneumatic actuator is dependent on the use of compressed air that enters into the chamber where pressure is built up. The result of the process is the creation of a kinetic movement of either a gear or a piston that can be directed in either a circular or straight mechanical motion.
In terms of application, pneumatic actuators are perfect for use for a wide variety of industries in many different areas. These include air compressors, machinery production, combustible automobile engines, railway, and even aviation. The greatest benefit of using a pneumatic actuator over other actuators is the reliability of the device and its safety aspects.
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