Double Wall Spiral Duct Dimensions

Wonder flange rings are fused together at the factory and arrive at the jobsite ready for mounting.

Double wall spiral duct dimensions.

Roll formed continuous interlocked pipe. 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. 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. Fittings 3 12 26 14 24 24 26 36 22 38 48 20.

K value is 0 27. Ft f at 75. 713 672 0509 toll free 877 774 duct 3828. Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside.

Flame spread 25 and smoke developed 50. Wonderflanges can be used on 1 2 3 or 4 double wall spiral pipe and fittings. Spiral pipe 3 16 26 18 26 24 28 40 22 42 50 20 52 84 18 gauge schedule size dia. This insulation has thermal conductivity of 0 26 btu in hr.

Duct direct 8610 wallisville rd. Spiral double wall duct size pipe outer wall size inner wall positive pressure to 10 w g. Mild steel is the standard material. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications.

Paint grip minimum gauges for spiral pipe construction. Galvanized and ss are available. Surface burning characteristics are. Houston texas 77029 phone.

Dual wall duct is also available in 2 3 and 4 thickness. Dual wall duct sizes are listed using the inside diameter. 1 2 and 3 insulation thicknesses are available. Dual wall double wall insulated spiral is available with solid or perforated liners.

Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna ashrae and spida standards. Gauge schedule size dia. 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.

The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class.