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Fire damper for all ORTECH Universal and Premium series PB fans


  • Fire Resistant: Up to 3 hours
  • Has a flexible fire blanket
  • Link that is of +165ºF standard
  • 21 gauge galvanized steel for frame
  • Includes fiberglass cover and ceramic fiber
  • Ceiling radiation damper with 3 hour rating
  • Comes with roll-framed frame made of galvanized steel
  • Spring steel rolled springs included; force of one springs is no less than 4.496 lbf


Compatible Fans (sold separately):

Material Galvanized steel frame, Fabric
Galvanized Steel 21 gauge, for frame
Fabric 1/8" thick, 12.484 lbs/ft³, environment temperature +1100ºC
Fusible Link 165ºF, 29/64" width
Springs Spring steel rolled, 19/32" width, force of 1 springs ≥ 4.496 lbf

Assembly Instructions

  1. Slide the adapter's hemmed edges onto the fan housing flanges
  2. Pinch the grille springs on the sides of the grille assembly
  3. Position the grille into the housing with the grille springs in the appropriate slots of the damper assembly
  4. Push the grille assembly towards the ceiling to secure

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