Double Wall Insulated Spiral Duct

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Double wall insulated spiral duct.

Next there s the second inner spiral duct. 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. The insulation in our double wall spiral and fittings has both acoustical and thermal benefits.

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. First there is the larger duct that s visible to everyone. Zen s 1 inch insulation has a thermal conductance of 0 27 btu hr x sq.

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. 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. Double wall pipe and fittings with e z flange and barrel clamp or standard slip connection sheet metal connectors inc.

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

Gasketed up to 36 flanged or spiralmate by ductmate industries connections are also available. Duct direct 8610 wallisville rd. 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.

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. Doublewall spiral pipe catalog specs. Houston texas 77029 phone. Our double wall duct and fittings also control radiated noise better than similar sizes and shapes of externally insulated sheet metal duct.