FireKing® Model 631
Fire-rated service door model 631 is a smaller fire door with UL/ULC ratings. The FireKing®Model 631 rolling fire-rated service door offers superior protection wherever a small UL listed fire door is required.
Additional safety and protection features are available, including: Fire Sentinel® time-delay release device, FireLite® vision lites, smoke detectors, horns and strobes.
Fire-Rated Door 631 Mounting Chart
Slat selection and finishes
Fire door slats are available in curved or flat profile in either galvanized steel. Galvanized slats are finished with a rust-inhibitive, roll-coating process that incorporates baked-on prime paint, and a baked-on polyester top coat of gray, tan, white or brown.
Standard max width
14' (4267 mm)
Standard max height
12' (3658 mm)
Standard baked-on paint finish available in gray, tan, white or brown
Three structural steel angles
PowderGuard® Weathered finish with black powder coat.
Labels available for masonry or non-masonry applications
UL/ULC 1-1/2 hr
UL/ULC 3 hr
UL oversized door
Mechanical auto resettable hoist (non-motorized)
Enables easy drop test and reset of fire door in seconds
Fusible link for added safety
Separates at 165°F (74°C) to automatically close the door in case of fire
Viscous governor technology
Controls rate of door descent during a fire while reducing noise and vibration for quieter door operation
Innovative planetary gear design
Ensures years of reliable service and drop-out performance
2-year material and workmanship
Fire doors are in compliance with
National Fire Protection Association (NFPA-80)
Underwriters Laboratories (UL & ULC)
New York City (MEA)
State of California (CSFM)