The FireKing® Model 635 fire-rated rolling service door offers superior protection wherever a listed insulated fire door is required (max. width 24’; max. height 24’). The Model 635 insulated rolling steel door serves as a thermal barrier, ideal for applications which require separation due to climate control requirements. The insulation used in this door offers added energy efficiency (R-value of 4.5), sound transmission control (STC 21), and the mineral wool utilized in the slat insert meets the Smoke and Flame Index of 5.
Common masonry and non-masonry mounted applications include: facilities with paint booths, file rooms, material storage locations, warehouses, shared walls between businesses, public record storage, and public buildings such as libraries. The Model 635 insulated fire door is available with UL (FM optional) labels for 1-1/2, 3, 4 and oversized doors.
These doors feature a mechanical auto resettable hoist (non-motorized) that enables easy drop test and reset of the fire door in just seconds. Fusible links are mounted on both sides of the wall that separate to automatically close the door in case of fire. Additional safety and protection features are available, including: Fire Sentinel® time-delay release device, FireLite® vision lites, smoke detectors, horns and strobes.
Actual door color may vary from the digital representation shown here. Color samples are available by request through your Overhead Door Distributor.
Max. standard width
24’0″ (7315 mm)
Max. standard height
24’0″ (7315 mm)
Insulation R-value of 4.5
Sound Transmission Class 21
Ideal for applications that require sound control
Galvanized or stainless steel, in a variety of gauges; Slat profile available in curved or flat;
Standard finish available in gray, tan, white or brown
Three structural steel or stainless steel angles with minimum thickness of 1/4 inch (6 mm) mounted to the face of the jamb
Guides also include locking bar or wind bar
PowderGuard™ weathered finish with black powder coat
Labels available for masonry or non-masonry applications
UL 1-1/2 hr (FM is optional)
UL/ULC 3 hr (FM is optional)
UL 4 hr
UL oversized door (FM is optional)
NFPA-80, New York City and state of California (CSFM) compliant
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
24 month limited warranty on door
3 year/20,000 cycle limited on door & RHX® operator system (when purchased together)
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