Double Wall Insulated Spiral Duct

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

Double wall insulated spiral duct.

1 2 and 3 insulation thicknesses are available. It can reduce radiated noise by 25 db or more compared to fiberglass duct board. Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq. The insulation in our double wall spiral and fittings has both acoustical and thermal benefits.

Duct direct 8610 wallisville rd. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc. First there is the larger duct that s visible to everyone. Mylar barrier is available as a barrier between perforated liner and insulation.

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 insulated spiral pipe consists of two concentric spiral pipes with insulation filling the space between the pipes. Houston texas 77029 phone. Double wall spiral ducts are as the name suggests comprised of two walls.

A traditional spiral duct system may be more efficient than the average rectangular duct but double wall spiral ducts offer even more efficiency in terms of energy costs. In double wall round spiral duct a metal inner liner insures that high airflow velocities cannot separate insulation by pulling away from the duct s outer wall and. 713 672 0509 toll free 877 774 duct 3828. We make 516 spiral flat oval duct sizes that can be used for double wall construction excluding only the 3 and 4 minor axis duct sizes.

K value is 0 27. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. It is shipped from the factory with the insulation pre installed reducing job site labor costs. Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside.

Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Dual wall also called double wall insulated spiral pipe. The outer metal shell of straight duct may be spiral flat oval lock seam duct or longitudinal seam welded duct. Double wall round spiral duct and fittings are one part of our complete line of hvac products.

Doublewall spiral pipe and fittings for commercial and industrial hvac ductwork.