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    • hvacdirect.com
      https://hvacdirect.com › residential › replace-hvac

      Shop Spiral Duct - Commercial Ducting

    • ductingsystems.com
      https://www.ductingsystems.com › nordfab

      Nordfab Ducting Supplies | Large Variety of Stocked Sizes

     
  1. Spiral Ducting is rigid metal ducting made from galvanised steel sheets. Spiral ducting is commonly used for heating and ventilation, air-conditioning, commercial kitchens, and dust and fume extraction. The spiral shape enables a smooth and robust airstream surface with almost no drag or resistance.
    www.aiandhs.com.au/spiral-ducting/
    Spiral ducting is a circular (round), spirally wound length of duct.This type of ductwork is generally cost-effective as it can be made with 32% less sheet metal than rectangular ducting. It is also less likely to leak due to it having fewer transverse & longitudinal joints when run in long, straight sections.
    www.ducting-express.co.uk/category/ducting-fitting…
    Air and Venting Ducting Ideal for high-pressure applications, round spiral ducting is a great alternative to square ducts. Used often for AC ducting, ventilation, dust and fume extraction and more, spiral ducting is available in a range of profiles, material types and finishes. It also comes insulated and with spiral welded seams.
    transvent.com.au/products/spiral-ducting/
     
  2. Spiral Ductwork | Commercial Duct - HVACDirect.com

    HVACDrect.com now offers Diamond Plate ductwork as a customzation option to our standard spiral ductwork. This option is available in our in-stock products from 8'' to 30'' and our custom jobs. Give us a call today at (800)-397-1392 for …

     
  3. HVAC Spiral Duct Pipe & Fittings | Sheet Metal Connectors