Rectangular – Double Wall

Rectangular Double Wall Duct

Combining the acoustical advantages of lined duct with the permanence of a galvanized steel liner, ADMP’s Rectangular Double Wall Duct comes with a K factor of .27 Btu/Hr./Sq. Ft./°F at 75° Fahrenheit mean temperature. Fitting seams are continuous welded MIG welds, with a silicon bronze wire and Argon shielding..

Construction & Advantages

ADMP’s Double wall duct has both acoustical and thermal insulation advantages. Acoustical double wall duct has a solid outer shell and a perforated inner shell to effectively reduce system noise. Thermal control double wall is constructed with solid inner and outer shells for assured thermal conductivity and vapor barrier integrity.

All double wall rectangular duct is fabricated with TDF connections and Pittsburgh longitudinal seams. One important advantage of double wall duct is that fiberglass insulation and sheet metal screws are not exposed to the air stream, permanently protecting the insulation and eliminating the possibility of it disconnecting from the outer shell of the ductwork.

Double wall duct is ideal for applications such as schools, hospitals, and laboratories. In exposed duct settings, double wall has a clean look that is much more aesthetically pleasing than externally insulated duct.

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