To achieve a better noise reduction effect, Biyang can provide the perforated design for the inner duct. This in the next step also leads to the low life expectancy for all ductwork system. Poor and not enough insulation in heating and cooling ducting wastes lots of energy in the middle way, which increases maintaining cost. Insulation material is extremely important for the long-term running of the ducting system and cost-effectiveness of the budget. We can make it based on your insulation standard such as R6, R4.2 and so on.
This also helps smoother air flow and increases the whole project’s energy efficiency.īiyang Double Wall Spiral Duct offers different insulation materials for your selection, including fiberglass, rubber foam and so on. The good material also ensures the nice outlook of spiral duct instead of the wrinkled surface.
The outside spiral duct works as the tough protective layer to protect the inside insulation layer from moisture or vapor. This rigid structure leads to the smoother and silencer air flow in the inner duct with excellent insulation.īoth Spiral Ducts are manufactured from galvanized steel or stainless steel from large competitive Chinese factories, such as Baosteel. It is a kind of Metal Duct, designed and produced to offer an excellent acoustical and thermal function for HVAC ductwork applications.īiyang 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.
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