The Models 640 and 641 doors are 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 Model 640 has exposed components made of primed galvanized steel while the Model 641 exposed components are of stainless steel.

Application Chart

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Standard Features at a Glance

• Available with UL, ULC and FM (optional) 3-hour (optional) Class A labels for masonry fire walls
• Available with UL, ULC and FM (optional) 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
• NFPA-80 compliant
• Fusible link separates at 165°F (74°C) to automatically close the door
• Governor controls rate of door descent during a fire
• Compact box guide design for an attractive appearance
• Upward-expanding guide design for flush to countertop installation
• Flat slat curtain design in primed galvanized steel finish (Model 640) or No. 4 stainless steel finish (Model 641)
• Slide bolt locking on push-up/crank

Options

Flame baffle system (required for optional FM label)

Fire Sentinel® time-delay release device

FireLite® vision lites in 3- and 1 1/2-hour curtains

Firestop® fire-resistant core countertops surfaced with the most popular brands of decorative laminates

UL-listed brush-type smoke seals

Photoelectric or ionization-type smoke detectors

Crank or electric operation

Electric operation does not require tension reset after drop test or closure due to power loss

Powder-coat paint finish offered in 197 custom colors, or color-matched to architect’s specification

20 minute UL smoke label on 640/641 doors up to 12'0" wide x 10'0" high opening

Slat Data

Model	Slat	Opening	Width	Standard
640	F-158	Thru 14'0"	(4267 mm)	22ga.
641	F-158	Thru 14'0"	(4267 mm)	22ga. ss.

Door Clearance Elevation

Operation: Push-up, crank, or electric.

Face-Of-Wall Mounted

*Optional 1-1/2 hour fire rated countertop available up to 48" (1.2 m) deep and
15' (4.5 m) long.

Between Jambs Mounted

Guides

Dimension A

Wall Opening Heights up to 10'0" (3048 mm) F128 Slat

Maximum Wall Opening Height
Thru 5'0" (1524 mm)	10" (254 mm)
Thru 10'0" (3048 mm)	12" (305 mm)
Slats are galvanized and painted

Dimension B

Wall Opening Widths up to 14'0" (4267 mm) F128 Slat

Maximum Wall Opening Height
Thru 8'0" (2438 mm)	4-15/16" (125 mm) + setback
Thru 14'0" (4267 mm)	5-5/8" (143 mm) + setback

Dimension C

Rated Counter Top Coil Side Dimension

Maximum Wall Opening Height	Minimum C
Up to 5'0" (1524 mm)	3-1/2" (89 mm)
5'1" to 6'0" (to 1829 mm)	4" (101 mm)
6'1" to 8'0" (to 2438 mm)	4-1/2" (114 mm)
8'1" to 10'0" (to 3048 mm)	5-1/2" (139 mm)

Dimension G

Wall Opening Widths up to 14'0" (4267 mm) F128 Slat

Maximum Wall Opening Height
Thru 8'0" (2438 mm)	1-15/16" (49 mm)
Thru 14'0" (4267 mm)	2-5/8" (67 mm)

Wall Opening Widths up to 12'11" (3937 mm) F128 Slat

Maximum Wall Opening Height	Expansion Gap
Thru 4'0" (1219 mm)	3/4" (19 mm)
Thru 6'0" (to 1829 mm)	1-1/8" (28 mm)
Thru 8'0" (to 2438 mm)	1-1/2" (38 mm)
Thru 10'0" (to 3048 mm)	1-7/8" (47 mm)
Thru 11'2" (to 3353 mm)	2" (51 mm)

Downloadable Brochure and Warranty
Brochure	Warranty