Piston Valve Actuators. Image credit: Spirax Sarco Diaphragm actuators have a thin flexible membrane that actuates via a compressed air supply. This type of actuator is single acting because the air ...

Other types of water valves include pressure relief valves, shut off valves, solenoid valves, and toggle valves. There are many types of valves which can be used for air applications. Each valve type ...

This standard provides basic requirements for pneumatic valve actuators of the double-acting and single-acting types, used for on-off and modulating valve duties. It includes guidelines, ...