Model SD-122

Smoke Damper
Triple-V Blade

The SD-122 smoke damper employs triple-V blades for point-of-origin control of smoke in static and dynamic smoke management systems. The SD-122 is qualified to 2,000 ft/min (10.2 m/s) and 4 in.wg. (1.0 kPa) and may be installed in, or adjacent to vertical walls or partitions, or horizontally in, or adjacent to floors or assemblies.

Standard Construction

Frame: 5" x 1" (127 x 25) galvanized steel hat channel with inerlocking corner gusset. Equivalent to 13 ga. (2.4) channel frame. Low profile head and sill are used on sizes less than 13" (330) high.
Blades: 6" x 16 ga. (152 x 1.6) galvanized steel - triple-V.
Side-Plate: 12" x 20 ga. (305 x 1.0) galvanized steel.
Axles: 1/2" (13) diameter plated steel hex.
Linkage: Concealed in frame.
Bearings: Stainless steel oilite, sleeve-type.
Seals: Silicone blade edge seals and flexible metal jamb seals.
Actuator: 120 VAC, power-open, spring-close, external mount. View Actuators.   
Minimum Size: 6" x 6" (152 x 152)
Maximum SizeSingle Section: 36" x 48" (914 x 1219)
                           Multiple Section: 144" x 96" (3658 x 2438) or
                                                       288" x 48" (7315 x 1219) .        


UL 555S Leakage Class: 2 
Maximum Temperature: 350oF (177oC)

UL 555S Listing: R14981
CSFM Listing: 3230-1404:106
New York City MEA Listing: 295-98-E
Meets NFPA Standards: 90A, 92A, 92B and 101
Meets Building Code Standards: IBC, NBC, NFPA, SBC and UBC