Ceiling Radiation Dampers

Ceiling radiation dampers (also called ceiling dampers) are designed to protect openings in the ceiling membrane of rated floor/ceiling and roof/ceiling assemblies. They are UL 555C classified or Warnock Hersey listed.

Ceiling Radiation Dampers

Overview

  • Model CRD

    Model CRD

    The CRD series are designed to take the place of a hinged door type ceiling damper per UL 555C.


  • Model CRD-1WJ

    Model CRD-1WJ

    The CRD-1WJ is design to be used in wood joist ceiling construction and approved for use in 17 ceiling designs as detailed in the UL Fire Resistance Directory.


  • Model CRD-1WT

    Model CRD-1WT

    The CRD-1WT is designed to be used in wood truss ceiling construction and approved for 2 ceiling designs as detailed in the UL Fire Resistance Directory.


  • Model CRD-501

    Model CRD-501

    The CRD-501 is round ceiling radiation damper with low leakage rating. This model is UL 555C and
    UL 555S classified.


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