Flat Oval Duct Sizing Calculator

The equivalent diameter of a oval duct or tube ellipse can be calculated as heyt diaz de 1 55 a0 625 p0 25 2.

Flat oval duct sizing calculator.

Single wall flat oval duct and fittings are also available in carbon steel paintable galvanized steel and aluminized steel. Round duct is by far the most energy efficient. Longer lengths are available on special order. Flat oval ducts have smaller height requirements than round ducts and retain most of the advantages of the round ducts.

Area and perimeter of a ellipse shape calculator calculate area and perimeter of an ellipse shape. Read computed values for equivalent round duct diameter inches. Enter the long axis inches and short axis inches of the flat oval duct. Guide for how to design a ductwork system.

Some standard lengths of uni seal flat oval duct are only available in 6 foot lengths. Fittings for flat oval ducts are difficult to fabricate or modify in the field. Diameter of a round duct that equates to the same pressure loss as the corresponding flat oval duct. Flat oval mm width x mm height rectangular mm width x mm height velocity m s typical 2 to 10 m s.

Standard lengths of longitudinal seam duct are 5 and 6 feet. Full worked example included with cfd simulations to optimise your design to ensure the highest energy efficiency. It is important to use the length a the long measurement in the box with the length a label. Duct sizing duct calculation duct design energy efficient ductwork design.

Gauge surface area perimeter in cross sectional area in2 spiral pipe of texas currently has the capability of producing flat oval spiral lockseam duct in 576 sizes more than anyone else in the us. Ductwork comes in round rectangular and flat oval shape. Converts a rectangular size to the appropriate round size or the available esm flat oval size. Indicates required field rectangular width.

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