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Fire Damper Group

Ceiling Radiation Dampers

Models - MRCD, MSCD, MSCDSB & MCCD
Ceiling Radiation Dampers covered under UL 555C intended for installation in hourly rated fire resistive floor-ceiling and roof-ceiling assemblies in accordance with the "Standard for Fire Tests of Building Construction and Materials," UL 263.
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Curtain Type Ceiling Radiation Damper

Ceiling Radiation Damper

Model – MCCD (Square or Rectangle Curtain Type)
Metal-Fab Ceiling Radiation Dampers are tested and listed to UL 555C for specified floor-ceiling and roof-ceiling assemblies.  Ceiling Radiation Dampers feature a rigid roll-formed frame for precision and strength.  Standard with a corrosion resistant stainless steel spring, available in various configurations for maximum versatility in the field.
 
Application
For use in sheet metal air ducts which penetrate ceilings of hourly-rated fire resistant assemblies.
Listings/Standards
UL 555C
Construction
Frame:  22 gauge galvanized steel
Blades:  24 gauge galvanized steel
Spring:  Corrosion resistant steel spring
Transition: 20 gauge galvanized steel
Finish:  Mill galvanized