Pneumatic Actuators

The TGA model is a double-action pneumatic actuator perfect for on/off control of the various types of butterfly valves. With an optional positioner, it can also be used for flow rate control. It mainly used for the medium to large-sized valves of size 350mm or more. The operation principle is that air pressure forces the piston inside the cylinder into a linear reciprocating motion, causing the trunnion coupled to the rod to drive the arm and rotate the output shaft.