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About Dayton Round Fire Damper, 165 Deg F, 13-5/8 In. D
This fire damper is designed for use in duct systems or penetrations of fire-rated barriers that have been designed to have pressurized airflow when the damper is expected to cycle closed during a fire. It can accommodate airflow in either direction. Item: Fire Damper Damper Item: Fire Damper Damper Shape: Round Mounting Type: Dynamic, Vertical or Horizontal Nominal Duct Dia.: 8" Damper Depth: 13-5/8" Material: 20 ga. Galvanized Steel Damper Dia.: 7-7/8" Fire Rated: 1-1/2 hr. Free Area: 0.301 sq. ft. Fusible Link: 165 Degrees F For Use With: Low Pressure HVAC Systems Standards: UL Standard 555, NFPA 80, 90A and 101, IBC, CSFM, NYC MEA Includes: Stainless Steel Closure Spring, UL Fusible Link
