AC Valve Alliance have a close partnership with Air Torque Italy means that we are well established in the pneumatic actuation market with a large stock holding of aluminium and stainless-steel rack and pinion actuators together with a comprehensive range of carbon steel, heavy duty scotch yoke actuators. To complement our stock of actuators we have a large selection of aluminium and stainless local controls and accessories.
Pneumatic actuators convert the energy from compressed air or gas into mechanical motion. They use the force generated by the compressed air to move pistons or diaphragms, which in turn produce linear or rotary motion. Pneumatic actuators consist of several components, including a cylinder, piston, diaphragm, valves, and control systems. The cylinder houses the piston or diaphragm, which converts the pressure of the compressed air. Valves control the airflow and direction, enabling precise control over the actuator’s motion.
Pneumatic actuators offer several advantages. They provide fast and powerful movement, making them suitable for applications that require quick response times. Pneumatic systems are also relatively simple, reliable, and cost-effective compared to other actuator types. They are resistant to harsh environments, such as high temperatures and corrosive atmospheres.
How Do Pneumatic Actuators Work?
Pneumatic actuators work by utilising the force generated from compressed air or gas.
- Compressed air or gas is supplied to one side of the actuator, creating pressure inside the actuator.
- The pressure pushes the piston or diaphragm, generating mechanical force.
- This force is then used to produce linear or rotary motion, depending on the type of pneumatic actuator.
- Valves control the airflow into and out of the actuator, enabling precise control over the motion and allowing for different operating modes.
What Are The Three Types Of Pneumatic Actuators?
Single-acting pneumatic actuators: These actuators use air pressure to generate force in one direction only. They have a spring or other mechanism to return the actuator to its initial position when the air pressure is released.
Double-acting pneumatic actuators: These actuators use air pressure to generate force in both directions. They have air supply ports on both sides of the actuator, allowing for controlled motion in both extending and retracting directions.
Rotary pneumatic actuators: These actuators convert the linear motion of the piston into rotary motion. They are used for applications that require rotational movement, such as valve control or turning devices.
Frequently Asked Questions