The 640 Series door is ideal for openings requiring a counter-type fire-rated door. Common applications include factories, schools, concessions, hospitals, cafeterias and retail settings. Labeled with either a 3-hour Class A rating for masonry applications, or a 1-1/2-hour Class B label in non-masonry fire walls, these doors are designed to expand upward in a fire, allowing the guides to be installed flush with the sill. Their compact, box-like form also provides an attractive finished appearance that requires minimum sideroom. The 640 Series has exposed components made of primed galvanized steel.
These doors are also available with a 1-1/2 hour fire-rated countertop with fire-resistant core and a vairty of poplular decorative laminate finishes. Added protection features, such as Fire Sentinel™ and FireLite® vision lites are optional.
Series 640 Series counter fire door is UL approved and can be custom designed for conveyor openings.
UL and FM Class A Labels
Available with UL and FM 3-hour Class A labels for masonry fire walls
UL Class B Labels
Available with a UL 1 1/2-hour Class B label for applications in non-masonry fire walls of dry wall with wood, steel studs, or steel tube jambs
Fusible link for added safety
Fusible link separates at 165°F (74°C) to automatically close the door
Controlled rate of descent for added safety
Governor controls rate of door descent during a fire
Compact box guide design for an attractive appearance
Upward-expanding guide design
for flush to counter top installation
Flat slat curtain design in primed galvanized steel finish