Double Wall Spiral Duct Dimensions

E z flange with barrel clamp 26 to 96 diameter.

Double wall spiral duct dimensions.

Dual wall double wall insulated spiral is available with solid or perforated liners. Paint grip minimum gauges for spiral pipe construction. Houston texas 77029 phone. Galvanized and ss are available.

Flame spread 25 and smoke developed 50. K value is 0 27. Mild steel is the standard material. Mylar barrier is available as a barrier between perforated liner and insulation.

Gauge schedule size dia. The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class. This insulation has thermal conductivity of 0 26 btu in hr. Dual wall duct sizes are listed using the inside diameter.

Wonder flange rings are fused together at the factory and arrive at the jobsite ready for mounting. Roll formed continuous interlocked pipe. Surface burning characteristics are. Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside.

Ft f at 75. 1 2 and 3 insulation thicknesses are available. Spiral double wall duct size pipe outer wall size inner wall positive pressure to 10 w g. 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.

Fittings 3 12 26 14 24 24 26 36 22 38 48 20. 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. Dual wall duct is also available in 2 3 and 4 thickness. Air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna ashrae and spida standards.

Spiral pipe 3 16 26 18 26 24 28 40 22 42 50 20 52 84 18 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. 713 672 0509 toll free 877 774 duct 3828. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications.

Wonderflanges can be used on 1 2 3 or 4 double wall spiral pipe and fittings.