Rectangular To Circular Duct

Round ducts have virtually no wall deflection in normal operating conditions and the helical spiral seams strengthen the duct even more.

Rectangular to circular duct.

Set your store to see local availability add to cart. The equivalent diameter is the diameter of a circular duct or pipe that gives the same pressure loss as an equivalent rectangular duct or pipe. For pricing and availability. The table is based on the ducts friction loss formula.

The rectangular dimensions and the air flow volume are adapted to the equal friction loss. Half section rectangular duct model rd24x8x48 21 98 21 98. As a rule of thumb size rectangular ducts slightly larger than circular ducts in terms of cross sectional areas due to increased surface areas in rectangular ducts. Beaded round metal duct pipe model bdcp12x60 22 16 22 16.

Free delivery with 45 order. A round shape results in lower pressure drops and less fan horsepower to move the air and consequently smaller equipment. Free shipping on your first order shipped by amazon. Master flow 24 in.

Engineered with a leed qualifying zero voc gasket this ductwork can eliminate the need for additional sealing along the longitudinal seams and transverse joint. For pricing and availability. Sections for a total. Use greenseam snap pipe duct and fittings from grainger to help with your commercial and residential hvac applications.

1 16 of 414 results for rectangular to round duct deflect o galvanized transition 3 1 4 x 10 6 6 dia. Master flow 12 in. Duct sizing can get very technical when taking friction losses flow rates velocities surface tension material composition and hydraulic diameters into consideration. Learn the differences between round and rectangular air ducts from our commercial hvac pros.

3 8 out of 5 stars 9. Imperial 6 in dia crimped galvanized steel flexible duct connector. The equivalent diameter is the diameter of a circular duct or pipe that for equal flow gives the same pressure loss or resistance as an equivalent rectangular duct or pipe. Imperial 6 in x 60 in galvanized steel round duct pipe.

Imperial 4 in x 4 in galvanized steel round duct elbow. Sound costs maximum airflow and more. Each box of metal duct contains five 5 ft. As a result spiral duct systems usually weigh 30 less than equivalent rectangular duct systems less material.

The table below can be used to compare equivalent diameters for rectangular and round circular ducts.