Rectangular To Circular Duct

Each box of metal duct contains five 5 ft.

Rectangular to circular duct.

The table below can be used to compare equivalent diameters for rectangular and round circular ducts. Imperial 6 in x 60 in galvanized steel round duct pipe. Imperial 4 in x 4 in galvanized steel round duct elbow. Learn the differences between round and rectangular air ducts from our commercial hvac pros.

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. Sections for a total. 1 16 of 414 results for rectangular to round duct deflect o galvanized transition 3 1 4 x 10 6 6 dia. Beaded round metal duct pipe model bdcp12x60 22 16 22 16.

Duct sizing can get very technical when taking friction losses flow rates velocities surface tension material composition and hydraulic diameters into consideration. Set your store to see local availability add to cart. Free delivery with 45 order. Free delivery with 45 order.

Half section rectangular duct model rd24x8x48 21 98 21 98. Engineered with a leed qualifying zero voc gasket this ductwork can eliminate the need for additional sealing along the longitudinal seams and transverse joint. Spiral ducts are normally produced in longer lengths than rectangular ducts. 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.

Sound costs maximum airflow and more. The table is based on the ducts friction loss formula. 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. For pricing and availability.

Master flow 24 in. Use greenseam snap pipe duct and fittings from grainger to help with your commercial and residential hvac applications. Imperial 6 in dia crimped galvanized steel flexible duct connector. A round shape results in lower pressure drops and less fan horsepower to move the air and consequently smaller equipment.

Master flow 12 in. 3 8 out of 5 stars 9. The rectangular dimensions and the air flow volume are adapted to the equal friction loss. As a result spiral duct systems usually weigh 30 less than equivalent rectangular duct systems less material.

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