Double Wall Insulated Spiral Duct

Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq.

Double wall insulated spiral duct.

Dual wall insulated spiral pipe consists of two concentric spiral pipes with insulation filling the space between the pipes. Double wall spiral ducts are as the name suggests comprised of two walls. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc. 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.

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. Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal duct. First there is the larger duct that s visible to everyone. It is shipped from the factory with the insulation pre installed reducing job site labor costs.

These two components help ensure a more consistent airflow temperature during delivery. It can reduce radiated noise by 25 db or more compared to fiberglass duct board. Mylar barrier is available as a barrier between perforated liner and insulation. Doublewall spiral pipe and fittings for commercial and industrial hvac ductwork.

Houston texas 77029 phone. The insulation in our double wall spiral and fittings has both acoustical and thermal benefits. Duct direct 8610 wallisville rd. 713 672 0509 toll free 877 774 duct 3828.

It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. Gasketed up to 36 flanged or spiralmate by ductmate industries connections are also available. Dual wall also called double wall insulated spiral pipe. 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.

Standard connections are slip fit with couplings. Double wall round spiral duct and fittings are one part of our complete line of hvac products. Doublewall spiral pipe catalog specs. 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.