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    13 Products

    Duct Fire Dampers

    In case of a fire, these dampers shut automatically to stop airflow. They have a fusible link that melts at 165° F, releasing a spring to close the blade. Dampers meet UL 555 fire safety standards to help prevent the spread of fire for 11/2 hours. They are undersized to fit inside duct.
    For Round Duct
    Image of Product. Front orientation. Duct Fire Dampers. For Round Duct.
    Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.
    Overall
    Galvanized Steel
    Duct
    Size
    OD
    Ht.
    Wd.
    Fire Safety
    Std.
    Fusible Link
    Melting Temp., ° F
    Ga.
    Each
    43 3/4"6 3/4"6 3/4"UL 555
    		16522000000000000000
    65 3/4"8 3/4"8 3/4"UL 555
    		1652200000000000000
    87 3/4"10 3/4"10 3/4"UL 555
    		1652200000000000000
    109 3/4"12 3/4"12 3/4"UL 555
    		1652200000000000000
    1211 3/4"14 3/4"14 3/4"UL 555
    		1652200000000000000
    Fusible Links
    Each
    Replacement Fusible Link with 165° F Melting Temperature0000000000000
    Fusible Link with 212° F Melting Temperature 000000000000
    Fusible Link with 386° F Melting Temperature 0000000000000
    For Square Duct
    Image of Product. Front orientation. Duct Fire Dampers. For Square Duct.
    Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.
    For
    Duct
    Overall
    Galvanized Steel
    Ht.
    Wd.
    Ht.
    Wd.
    Dp.
    Fire Safety
    Std.
    Fusible Link
    Melting Temp., ° F
    Ga.
    Each
    8"8"7 3/4"7 3/4"4 7/8"UL 555
    		165220000000000000
    12"12"11 3/4"11 3/4"4 7/8"UL 555
    		16522000000000000
    14"14"13 3/4"13 3/4"4 7/8"UL 555
    		16522000000000000
    18"18"17 3/4"17 3/4"4 7/8"UL 555
    		165220000000000000
    24"24"23 3/4"23 3/4"4 7/8"UL 555
    		165220000000000000
    Fusible Links
    Each
    Replacement Fusible Link with 165° F Melting Temperature0000000000000
    Fusible Link with 212° F Melting Temperature 000000000000
    Fusible Link with 386° F Melting Temperature 0000000000000
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