Square Fire Damper,17-3/4 In. W


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.
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  • Damper Item Fire Damper
  • Damper Shape Square
  • Mounting Type Dynamic, Vertical or Horizontal
  • Nominal Duct Width 18'
  • Nominal Duct Height 18'
  • Damper Depth 3-11/16'
  • Material 22 ga. Galvanized Steel
  • Damper Height 17-3/4'
  • Damper Width 17-3/4'
  • Recommended Retaining Angle 2TGH8
  • Fire Rated 1-1/2 hr.
  • Free Area 1.640 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

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