Type K Damper Drive Retrofit Examples * Click photo to enlarge. Type K Retrofit of Volume Air to Coal Mill Damper. Bailey AC series which was removed is shown on ground. Type K Retrofit of Aux Air Damper on a CE T-Fired Boiler. Hagen 2" actuator was removed.     Type K Retrofit of FD Fan Inlet Dampers on a 400 MW Coal Fired Unit. BEFORE: (left) Bailey AC0816 Damper Drives AFTER: (right) Type K Drives with Bailey I/P Positioner     Type K Retrofit of Cold Air Damper on Air Flow Temperature Control to Coal Mill BEFORE: (left) Bailey Damper Drive AFTER: (right) Type K Drive with Kinnetrol Pneumatic Positioner Type K Retrofit on Flue Gas Recirculation Damper. Bailey RC Electric Actuator replaced. Type K Actuator is shown with Air lockup regulator for fail in place, Pneumatic Positioner and Stonel Feedback Limit Switches.