Round Sheet Metal Ductwork Should Be

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.

Round sheet metal ductwork should be.

The round profile greater flow efficiencies than rectangular ducts. Sheet metal made of galvanized steel or aluminum is fabricated into round or rectangular duct for transporting air. Above ground duct systems shall conform to the following. M1601 1 1 above ground duct systems.

Flexible duct can degrade over time. Galvanized steel shall conform to astm a 653. To see availability for this product personlog in or get online access. 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.

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. It collects dust and is almost impossible to clean. Flexible duct needs to be larger than pipes to allow the same amount of airflow.

Set your store to see local availability add to cart. Sheet metal ducts are less likely to incur dangerous mold and growths because their surfaces are non porous and smooth. 26 gauge round metal duct pipe model 26cp4x24 5 67 5 67. Engineering toolbox resources tools and basic information for engineering and design of technical applications.

Master flow 4 in. One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct. When properly installed sheet metal systems are robust and can provide many years of service. Round metal duct pipe galvanized sheet metal duct work 24 metal ducts 16 inch hvac 3 inch rigid pipe.

Bob s not a fan of flexible heating ductwork. Air moves easily in metal duct systems with less friction loss. Round ducts and enclosed rectangular ducts 14 inches or less minimum thickness 0 0157 equivalent galvanized gauge size 28. Let s start with sheet metal since it has been around longer.

There s no question that flexible duct is easier to install than metal ductwork but consider this. Because round ducts are inherently stronger than rectangular profiles they can be lighter metal gauges and can be installed in longer spans. 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. Search is the most efficient way to navigate the engineering toolbox.

Sheet metal gauges used in ductwork. 2 inches wide and spaced no further than every 5 feet. 30 ga insulated box. Sheet metal duct pipe fittings page 1 of 211.