Double Wall Spiral Duct Dimensions

Fittings 3 12 26 14 24 24 26 36 22 38 48 20.

Double wall spiral duct dimensions.

Ft f at 75. Spiral double wall duct size pipe outer wall size inner wall positive pressure to 10 w g. Galvanized and ss are available. Mild steel is the standard material.

Dual wall duct sizes are listed using the inside diameter. Paint grip minimum gauges for spiral pipe construction. 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.

Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside. 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. Duct direct 8610 wallisville rd.

K value is 0 27. E z flange with barrel clamp 26 to 96 diameter. Air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna ashrae and spida standards. Houston texas 77029 phone.

Dual wall double wall insulated spiral is available with solid or perforated liners. 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. Roll formed continuous interlocked pipe. Dual wall duct is also available in 2 3 and 4 thickness.

Gauge schedule size dia. The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class. 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. 1 2 and 3 insulation thicknesses are available.

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. Flame spread 25 and smoke developed 50. Surface burning characteristics are.

713 672 0509 toll free 877 774 duct 3828.