Fire/Smoke Dampers

Features

Hot Smoke Purge (HSP) Type (Override/Dual Sensors)
1½–3 Hour Fire Rated
Dynamic
U.L. Listed Class I & II
Stainless Steel
350° F
TDF Sleeves
14 GA Sleeves

Products

471 Corridor Fire/Smoke Combination Damper Class I

471 data sheet

771-HSP 1½-Hour Fire Rated Fire/Smoke Damper, Hot Smoke Purge (HSP) Type (Override/Dual Sensors)
771-3-HSP 3-Hour Fire Rated Fire/Smoke Damper, Hot Smoke Purge (HSP) Type (Override/Dual Sensors)

771-HSP & 771-3-HSP data sheet

781-HSP 1½-Hour Fire Rated Fire/Smoke Damper Airfoil Blade Class I, Hot Smoke Purge (HSP) Type (Override/Dual Sensors)
781-3-HSP 3-Hour Fire Rated Fire/Smoke Damper Airfoil Blade Class I, Hot Smoke Purge (HSP) Type (Override/Dual Sensors)

781-HSP & 781-3-HSP data sheet