SPIRAL ROUND DUCT
DUCTTECH
Phone: +91-7042394846
Email: enquiry@ducttech.co.in
Description: SPIRAL ROUND DUCT If you could do just one thing to your duct design that would make it more energy efficient and less expensive, would you do it? You might recognize the two symbols above. The one on the left is used to denote that a duct will be round. The one on the right denotes that a duct will be flat oval. Most of the time, for a typical HVAC system, they indicate you want spiral duct. But for some reason, we often see engineers leaving these symbols off of their drawings. Perhaps they can’t find them in their CAD libraries. But when you leave them off, you are usually going to end up with poor-performing and costly rectangular duct. Spiral Round Duct Spiral round lock-seam duct is the most efficient way to transport air in HVAC systems. The round profile greater flow efficiencies than rectangular ducts. Because round ducts are inherently stronger than rectangular profiles, they can be lighter metal gauges and can be installed in longer spans. The 4-ply spiral lock-seams of “spiral duct” create a product that is stronger than traditional welded-seam round ducts of the same gauge. Spiral lock-seams have practically no leakage, and are the only mechanical seams exempted from sealing under energy standard. We make diameters ranging from 3” to 92” and metal thicknesses from 26 gauge to 16 gauge. The following is our construction standard for positive pressures to +10” WG.
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