Double Wall Insulated Ductwork

Double wall stainless steel exhaust systems chimneys made of stainless steel with high quality insulation material available in different designs materials and colors.

Double wall insulated ductwork. This double wall insulated ductwork is constructed of a solid metal outer pressure shell and a metal inner liner with a layer of insulation sandwiched between. Overall interior insulation duct liners perform well in terms of thermal efficiency and noise reduction. Provide minimum outer wall duct fitting construction gauges for round duct systems with pressures up to 2 inches w c as listed in section 23 31 10 low pressure ductwork as included in these specifications. Thermal double wall duct for temperature control.

Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside. When a perforated inner liner is specified a retaining fabric must be wrapped between the perforated inner and the glass fiber insulation. Sealant is available in the seams upon request. The first rigid phenolic pre insulated ductwork in the world to be ul 181 listed as a class 1 air duct.

Double wall insulated duct and fittings mcgill airflow corporation s double wall insulated duct and fittings pro vide exceptional noise and thermal control in air handling systems. Low air leakage easily achieves smacna class 3. It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications. Spiral manufacturing offers standard solutions but we have the flexibility to meet your special needs.

Double wall duct and fittings will consist of a perforated or solid inner liner 1 thick x 1 0 lb ft layer of glass fiber insulation and a solid outer pressure shell. Dual wall also called double wall insulated spiral pipe. Acoustically insulated double wall ductwork 23 31 12 4 13 hc1 033 2 03 round double wall duct fitting gauges a. Double wall insulated round ducts.

Here are some of the product options for round insulated duct that are available from spiral pipe of texas. Double wall duct is fabricated with either snap lock or pittsburgh longitudinal seams. Double wall duct and fittings mcgill airflow s rectangular k27 duct and fittings provide exceptional noise and thermal control in air handling systems. They are constructed of a solid sheet met al outer pressure shell and a sheet metal inner liner with a layer of insu lation sandwiched between.

Double wall duct is manufactured completely assembled with tdc corners installed. Straight double wall duct comes standard with stiffening beads. Factory insulated duct products reduce field labor as well as giving consistency and product features you won t get with thermal wrap.