Double Wall Spiral Duct Dimensions

Dual wall double wall insulated spiral is available with solid or perforated liners.

Double wall spiral duct dimensions.

Mylar barrier is available as a barrier between perforated liner and insulation. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. For these cases the inner liner does not project beyond the outer shell x 0 inches and a slip fit. X 2 inches for inner liner minor axis dimensions greater than 7 inches double wall duct and fittings can be ordered with van stone or applied connectors installed on the outer shell.

Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside. Uni gasket fittings are compatible and available with all of mcgill airflow s round double wall duct types in 1 inch increments for 5 through 12 inch diameters outer shells and in 2 inch increments in 14 through 24 inch outer shell diameters. Ft f at 75. Paint grip minimum gauges for spiral pipe construction.

Surface burning characteristics are. 1 2 and 3 insulation thicknesses are available. 713 672 0509 toll free 877 774 duct 3828. This insulation has thermal conductivity of 0 26 btu in hr.

Wonder flange rings are fused together at the factory and arrive at the jobsite ready for mounting. The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class. Fittings 3 12 26 14 24 24 26 36 22 38 48 20. Flame spread 25 and smoke developed 50.

Air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna ashrae and spida standards. Houston texas 77029 phone. E z flange with barrel clamp 26 to 96 diameter. Roll formed continuous interlocked pipe.

Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Mild steel is the standard material. Spiral pipe 3 16 26 18 26 24 28 40 22 42 50 20 52 84 18 gauge schedule size dia. K value is 0 27.

Dual wall duct is also available in 2 3 and 4 thickness. Duct direct 8610 wallisville rd. Smc double wall round spiral duct is a dependable erosion resistant alternative to lined round spiral duct providing improved protection for insulation exposed to the airstream. Galvanized and ss are available.

Dual wall duct sizes are listed using the inside diameter.