AF pneumatic film quarter-turn actuators, specially used for driving CAM torsion valve 60 ° Schedule of rotating regulator. By spring return structure, light weight, small size, high performance, output power. Its working principle is: By adjusting the electricity or gas meter to signal the locator and input to the pressure was to film in the interior, produce thrust, diaphragm and compression spring rod movement, until the spring and reaction phase equilibrium, putting the crank mechanism of linear motion convert quarter-turn output, make the output shaft rotation to a predetermined location.
This series actuators and locator with high position control can be realized.

Features
1. To make the air pressure effectively transform into output force, by rolling diaphragm.
2. In order to take advantage of air pressure, must have the pressure chamber.
Three, for make linear reciprocating movement into rotary movements, installation of crank mechanism.
4. For the beeline reciprocating movement, turn into do not produce swing, push rod ends special fixed-end spherical bearing.
5. Change the executing agency in stem or installation position of both positive and negative effects of the regulator can change forms.
6. And actuators can make a positive role model.
7. Using the structural adjustment is spring
Eight, because by rolling diaphragm and hi-pressure, therefore in the same source output force situation, actuators can be small lightweight.