ACTUATOR ISO 5211

A pneumatic actuator conforming to ISO 5211 is a device that uses compressed air to convert fluid power into rotary or linear motion, typically to operate industrial valves (like ball, butterfly, or plug valves). Key Features Pneumatic Power: It uses compressed air to drive a piston or diaphragm, producing the required mechanical force. Actuation Type: They are commonly available as double-acting (air pressure controls both opening and closing) or spring-return (air pressure opens/closes, and a spring returns it to a safe position upon air loss). ISO 5211 Interface: The defining feature is the mechanical interface (the flange and drive shaft) which is standardized according to the ISO 5211 specification. This ensures interchangeability across different manufacturers, guaranteeing a specific actuator will fit a valve of the same standard size, simplifying selection and maintenance. Common Applications: Used extensively in automation within process industries such as chemical, water treatment, and petrochemical plants.