Viking Pneumatic Actuator Models H-1 and R-1 are for use wherever a seperation is required between the detection and operating systems. The pneumatic actuator is a required component on systems using pnuematic detection to provide the separation between the air in the detection system and the water in the valve operating trim.

 

The Model R-1 is similar to the H-1, except that some components are specially plated for additional corrosion resitance. See Technical Data Sheet for further information.