Key Components and Functionality
The assembly typically consists of a high-quality stainless steel or investment cast carbon steel ball valve. This is coupled with a rack and pinion pneumatic actuator, which converts compressed air energy into rotational motion. Aira offers these in two primary configurations:
Double Acting: Requires air pressure for both the opening and closing strokes.
Single Acting (Spring Return): Uses air to open (or close) and a mechanical spring to return the valve to its fail-safe position if air pressure is lost.
Performance Features
Aira’s pneumatic ball valves are celebrated for their bubble-tight shut-off and low pressure drop. They often feature PTFE (Teflon) seats, ensuring compatibility with a wide range of media, including water, oil, gas, and corrosive chemicals. With pressure ratings often reaching PN16 to PN63 and the ability to withstand high temperatures, they are essential in sectors like chemical processing, water treatment, and pharmaceuticals.