Round Sheet Metal Ductwork Should Be

When properly installed sheet metal systems are robust and can provide many years of service.

Round sheet metal ductwork should be.

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. Underwriters laboratories standard 181 a covers. 26 gauge round metal duct pipe model 26cp4x24 5 67 5 67.

Air moves easily in metal duct systems with less friction loss. Engineering toolbox resources tools and basic information for engineering and design of technical applications. 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. Let s start with sheet metal since it has been around longer.

Ducts sheet metal gauges sheet metal gauges used in ductwork. Round metal duct pipe galvanized sheet metal duct work 24 metal ducts 16 inch hvac 3 inch rigid pipe. Minimum thickness of metal duct material shall be as listed in table m1601 1 1 2. One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct.

To see availability for this product personlog in or get online access. Sheet metal gauges used in ductwork. Galvanized steel shall conform to astm a 653. 2 inches wide and spaced no further than every 5 feet.

When hanging flexible duct the hanging material should be at least. 20 in x 25 in x 16 in duct square to round. Sheet metal duct pipe fittings page 1 of 211. Flexible duct can degrade over time.

Search is the most efficient way to navigate the engineering toolbox. Because round ducts are inherently stronger than rectangular profiles they can be lighter metal gauges and can be installed in longer spans. Master flow 4 in. M1601 1 1 above ground duct systems.

Flexible duct needs to be larger than pipes to allow the same amount of airflow. It collects dust and is almost impossible to clean. There s no question that flexible duct is easier to install than metal ductwork but consider this. Bob s not a fan of flexible heating ductwork.

Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. Set your store to see local availability add to cart. Above ground duct systems shall conform to the following. Sheet metal made of galvanized steel or aluminum is fabricated into round or rectangular duct for transporting air.