Scotch yoke pneumatic actuator is a rotary motion actuator, applicable for 90° rotary valves (such as ball valve, butterfly valve, plug valve) switch off or metering control. Pneumatic actuators can be divided into 2 types double-acting and single-acting; Single-acting actuators can be divided into 2 types normally open (FO) and normally close (FC). Different actuators can be selected according to different working conditions.
