Fire insulated doors

We offer Dependable automatic closings because of simplicity of design, are the most effective way of protecting property while increasing safety for building occupants.


-Governor controls automatic closing speed to 9" to 12” per second for Auto-Test chain, crank, and motor and Simple-Test chain and crank operated doors
-Oil tempered torsion springs designed for 50,000 life cycles 
-Structural Angle Guides and Bottom Bar make doors less vulnerable to damage that could prevent the doors from fully closing 
-Available for 4 hour, 3 hour, 1-1/2 hour and 3/4 hour ratings 
-Approved for all wall types (concrete, masonry, structural steel, structural steel with gypsum board) 
-Auto-Test Doors automatically reset to normal operation upon clearing of alarm signal and/or restoration of power 
-Simple-Test Doors are reset by replacing the fuselink 
-Auto-Test and Simple-Test Doors do not release spring tension upon activation 
-Testing doors in fully closed position will not damage mechanisms