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TRUE ROUND FIRE DAMPERS
• ROUND FIRE DAMPER
• UL 555 CLASSIFIED
DYNAMIC FIRE DAMPER
• 1 1/2 HOUR LABEL
MODEL: 1290F
The new Nailor 1290F round fire damper is suitable for use where building codes require a fire damper for protecting ductwork
penetrations in walls or floors that have a fire resistance rating of up to 2 hours. The 1290F is an economical true round fire damper
designed and qualified for point-of-origin fire containment where round ductwork passes through metal stud drywall partitions or
masonry walls. The 1290F is approved for use in static or dynamic HVAC system designs. Features of the 1290F include the
industry proven over-center/knee lock design with high torque spring/fusible link closure which provides fail-safe security under
fire conditions. Each damper is supplied as standard with retaining plates for fast secure installation and a hand locking quadrant
which holds the damper in the fully open position, but may also be used for system balancing if required.
QUALIFICATIONS:
• UL 555 & CAN/ULC-S112 CLASSIFIED DYNAMIC FIRE DAMPER
- 1 1/2 hr. Label. (File #'s R9492 and R19569).
• Meets NFPA 80, 90A and 101 as well as IBC and NBC (Canada)
Building Code requirements.
• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa).
CONSTRUCTION DETAILS:
FRAME:
20 gauge (1.0) galvanized steel integral sleeve
and retaining plates.
BLADE:
2 x 20 (1.0) gauge galvanized steel laminated
together, 14 gauge (2.0) equivalent thickness.
LINKAGE:
Jackshaft to blade.
BEARINGS:
1/ 2" (13) dia. self-lubricating oilite bronze.
AXLES:
1/ 2" (13) dia. plated steel double bolted to blades.
JACKSHAFT:
1/2" (13) dia. cadmium plated steel. Supplied with
factory mounted hand locking quadrant.
FUSIBLE LINK:
165°F (74°C) standard. 212°F (100°C) available.
AVAILABLE SIZES: 6" (152) through 24" (610) diameter in nominal
1" (25) increments. Vertical or horizontal
installation.
Previous View
Revised September 16, 2004
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Contents
Model 1290F
NOM. DIA.
- 1/8" (3)
Wall
Thickness
4 to 8 (102 to 203)
10 to 12 (254 to 305)
14 to 16 (356 to 406)
Dimensions
Performance
CCW
TO
OPEN
INSTALLATION
RETAINING PLATES
INCLUDED
DRIVE
SHAFT
5 3/4" (146)
16" (406) STANDARD
Minimum
Sleeve
Length
16 (406)
20 (508)
24 (610)
Specification
E21
E21
E
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