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What is triple rib spiral duct and what are its advantages?

April 26, 2017advantages duct rib Spiral triple

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What is triple rib spiral duct and what are its advantages?

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A. Spiral duct made with raised seams spaced more closely than the typical standard flat. This configuration allows us to use a much lighter gage — which reduces material costs and makes the duct lighter and easier to handle. This approach is particularly advantageous for larger sizes.