Pneumatic valve actuator

Pneumatic valve actuators are divided into single acting and double acting, straight stroke and angular stroke, diaphragm type and piston type. Single acting pneumatic actuators use springs as the main kinetic energy for valve return, while double acting pneumatic actuators use gas sources to drive valve opening, closing or adjustment. Pneumatic valve actuator is a device that uses pneumatic pressure to drive the opening, closing or regulating of valves, also known as pneumatic valve actuator or pneumatic device, but generally referred to as pneumatic head. The actuator and regulating mechanism of pneumatic valve actuators are a unified whole, and their actuators include diaphragm type, piston type, fork type, and gear rack type. Piston type with long stroke, suitable for situations requiring high thrust; The thin film type has a smaller stroke and can directly drive the valve stem. Fork type pneumatic actuators have the characteristics of high torque, small space, and torque curves that better match the torque curve of valves, and are commonly used in high torque valves. The gear rack pneumatic valve actuator produced by Shanghai Meiyan Yipum Valve has the advantages of simple structure, stable and reliable action, and safety and explosion prevention. It is widely used in production processes with high safety requirements such as power plants, chemical industry, and oil refining.