Double Wall Insulated Spiral Duct

Double wall round spiral duct and fittings are one part of our complete line of hvac products.

Double wall insulated spiral duct.

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 creating erosion or airflow problems. Duct direct 8610 wallisville rd. 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. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc.

Double wall duct and fittings can reduce radiated noise by 25 db or more compared with fiberglass duct board and by 30 db or more com pared with insulated flexible duct. These two components help ensure a more consistent airflow temperature during delivery. Standard connections are slip fit with couplings. Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal duct.

Double wall spiral ducts are as the name suggests comprised of two walls. Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq. Houston texas 77029 phone. Thermaduct s inspiral r and floval duct systems are preinsulated spiral and flat oval double wall ductwork alternatives that offer significant weight savings and near zero air leakage.

Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Next there s the second inner spiral duct. Doublewall spiral pipe and fittings for commercial and industrial hvac ductwork. Double wall insulated spiral is available with solid or perforated liners.

It can reduce radiated noise by 25 db or more compared to fiberglass duct board. Dual wall insulated spiral pipe consists of two concentric spiral pipes with insulation filling the space between the pipes. The insulation in our double wall spiral and fittings has both acoustical and thermal benefits. Mylar barrier is available as a barrier between perforated liner and insulation.

Doublewall spiral pipe catalog specs. 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. First there is the larger duct that s visible to everyone.