Double Wall Insulated Spiral Duct

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

Double wall insulated spiral duct.

Duct direct 8610 wallisville rd. Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. 713 672 0509 toll free 877 774 duct 3828. 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.

First there is the larger duct that s visible to everyone. Houston texas 77029 phone. Standard connections are slip fit with couplings. Doublewall spiral pipe catalog specs.

Dual wall insulated spiral pipe consists of two concentric spiral pipes with insulation filling the space between the pipes. 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. It is shipped from the factory with the insulation pre installed reducing job site labor costs. Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal 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. Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq. Double wall insulated spiral is available with solid or perforated liners. The insulation in our double wall spiral and fittings has both acoustical and thermal benefits.

Dual wall also called double wall insulated spiral pipe. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. These two components help ensure a more consistent airflow temperature during delivery. 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.

Double wall spiral ducts are as the name suggests comprised of two walls. Gasketed up to 36 flanged or spiralmate by ductmate industries connections are also available. Double wall round spiral duct and fittings are one part of our complete line of hvac products. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc.