Double Wall Spiral Duct Dimensions

Dual wall duct is also available in 2 3 and 4 thickness.

Double wall spiral duct dimensions.

Dual wall double wall insulated spiral is available with solid or perforated liners. Roll formed continuous interlocked pipe. Mild steel is the standard material. Wonderflanges can be used on 1 2 3 or 4 double wall spiral pipe and fittings.

Flame spread 25 and smoke developed 50. 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. Spiral double wall duct size pipe outer wall size inner wall positive pressure to 10 w g. 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.

Gauge schedule size dia. Duct direct 8610 wallisville rd. 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.

Ft f at 75. The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. Houston texas 77029 phone.

Fittings 3 12 26 14 24 24 26 36 22 38 48 20. Paint grip minimum gauges for spiral pipe construction. 1 2 and 3 insulation thicknesses are available. Galvanized and ss are available.

For these cases the inner liner does not project beyond the outer shell x 0 inches and a slip fit. 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. K value is 0 27. Surface burning characteristics are.

Mylar barrier is available as a barrier between perforated liner and insulation. Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Wonder flange rings are fused together at the factory and arrive at the jobsite ready for mounting. Dual wall duct sizes are listed using the inside diameter.

Spiral pipe 3 16 26 18 26 24 28 40 22 42 50 20 52 84 18 gauge schedule size dia.