2750 - 3 Hour Rated Round Ceiling Radiation Butterfly Damper

Standard Features

  • Round ceiling radiation butterfly damper
  • Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
  • UL listed and tested in accordance with UL Standard 555C
  • 3 hour fire resistance rating
  • Building materials rated 3 hours or less
  • CSFM California State Fire Marshal listed
  • Zinc plated steel closure spring
  • All steel parts with galvanized finish or zinc coating
  • 22 gauge butterfly style galvanized steel blades
  • 22 gauge galvanized steel roll formed frame
  • Ceramic fiber blade insulation with fiberglass cover*
  • 165° replaceable fusible link
  • Available in 4" through 24" round
*Note: Ceramic fiber blade insulation is not UL required on dampers with free areas less than 80 square inches. Dampers above 80 square inches free area will be provided with blade isulation.

    Options (must specify when ordering)
    Submittals (Technical Data/Revit)
    Cross Reference


    No finishes available for this product.


    • Extended sleeve (2751)
    • 212° Fusible Link
    No similar or related products available.


    2750 Series Submittal

    No performance data is available for this product


    2750 Install Instructions

    Cross Reference

    Product Series 
    Shoemaker Series Notes 
    RUSKINCFDR Specify 2751 for extended sleeve.