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Nailor 1270 Series Vee Blade Combination Fire/Smoke Dampers are available with fire resistance ratings of 1 ½ hours and leakage ratings of Class I or II. Qualified to 2000 fpm (10 m/s) and 4 in. w.g. (1 kPa) and may be installed in vertical walls or partitions, or horizontally in floors.
Nailor 1270 Series Fire/Smoke Dampers are ideal for applications where building codes require both a fire damper for the protection of ductwork penetrations and a leakage rated damper for operational smoke control. The 1270 Series is designed to offer a rugged, cost effective damper ideal for the majority of commercial applications.
Nailor 1271G Series Fire/Smoke Dampers are specifically designed for supply or return ducts that terminate at a grille. The special factory sleeve with unique 3/4” (19) grille mounting flanges simplifies installation, saves on field labor and eliminates the requirements for unsightly front retaining angles which commonly protrude from behind the grille.
Nailor 1271C Series Corridor Fire/Smoke Dampers are 1 hr. rated corridor damper for use in corridor ceiling applications. Qualified to 2000 fpm (10 m/s) and 4 in.wg. (1 kPa).