Round Sheet Metal Ductwork Should Be

The fiberglass in some ducts can deteriorate with time and will eventually release fiberglass particles into the air which might affect the health of the residents.

Round sheet metal ductwork should be.

Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. 20 in x 25 in x 16 in duct square to round. Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2. Search is the most efficient way to navigate the engineering toolbox.

When properly installed sheet metal systems are robust and can provide many years of service. Bob s not a fan of flexible heating ductwork. Sheet metal ducts are less likely to incur dangerous mold and growths because their surfaces are non porous and smooth. The round profile greater flow efficiencies than rectangular ducts.

To see availability for this product personlog in or get online access. It collects dust and is almost impossible to clean. 26 gauge round metal duct pipe model 26cp4x24 5 67 5 67. M1601 1 1 above ground duct systems.

Sheet metal gauges used in ductwork. Above ground duct systems shall conform to the following. Sheet metal duct pipe fittings page 1 of 211. Sheet metal made of galvanized steel or aluminum is fabricated into round or rectangular duct for transporting air.

Air moves easily in metal duct systems with less friction loss. 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. Because round ducts are inherently stronger than rectangular profiles they can be lighter metal gauges and can be installed in longer spans. Engineering toolbox resources tools and basic information for engineering and design of technical applications.

Galvanized steel shall conform to astm a 653. Underwriters laboratories standard 181 a covers. Set your store to see local availability add to cart. 30 ga insulated box.

One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct. Ducts sheet metal gauges sheet metal gauges used in ductwork. Galvanized sheet metal ducts from the duct shop s hvac ductwork is manufactured from high quality galvanized steel in 3 foot lengths for easy handling. Flexible duct can degrade over time.

Master flow 4 in. 2 inches wide and spaced no further than every 5 feet. Let s start with sheet metal since it has been around longer. Round metal duct pipe galvanized sheet metal duct work 24 metal ducts 16 inch hvac 3 inch rigid pipe.