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Motorized Smoke Damper, Round, Actual Damper Sz. Dia. 7-7/8 In., Material Galvanized Steel, Frame 20 ga., Blade 14 ga.Max. Temp. 350 Degrees F, Max. Velocity 3000 fpmPressure Differential Max. 4 In. wg, Seals Silicone Rubber, Voltage 24, 60 Hz, 1 Phase, Free Area 43.34 sq. in., Nominal Duct Dia. 8 In.Depth 8-1/4 In.Mounting Type Vertical/Horizontal, Standards UL Standard 555S, NFPA 92A, 92B, 101 and 105, IBC, CSFM, NYC MEA, Class II Leakage, Includes Factory Mounted Actuator Life Safety DampersAccommodate airflow in either direction.UL, NFPA, IBC, MEA, CSFMMotorized Smoke DampersFactory-installed actuator forces damper blades to close in emergency smoke control situations.Smoke leakage rating: Class II 3V blade Velocity rating: 2000 fpm (square); 3000 fpm (round)
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