Flat Oval Duct Sizing Calculator

Fittings for flat oval ducts are difficult to fabricate or modify in the field.

Flat oval duct sizing calculator.

Algona wa 98001 ph. 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. Round duct is by far the most energy efficient. Read computed values for equivalent round duct diameter inches.

Duct sizing duct calculation duct design energy efficient ductwork design. The equivalent diameter of a oval duct or tube ellipse can be calculated as heyt diaz de 1 55 a0 625 p0 25 2. Some standard lengths of uni seal flat oval duct are only available in 6 foot lengths. Converts a rectangular size to the appropriate round size or the available esm flat oval size.

Enter the long axis inches and short axis inches of the flat oval duct. Longer lengths are available on special order. Flat oval spiral pipe engineering tables flat oval size basic actual size round equivalent round std. It is important to use the length a the long measurement in the box with the length a label.

Flat oval rectangular de 1 3 x a x b 0 625 a b 0 250 rectangular to round de 1 55 x a 0 625 p 0 250 flat oval to round cfm each rectangular round pf iwg flat oval refer to above equal velocity rounded up to next largest even size rounded up to next whole number velocity fpm delta diameter gauge. Flat oval mm width x mm height rectangular mm width x mm height velocity m s typical 2 to 10 m s. Guide for how to design a ductwork system. Full worked example included with cfd simulations to optimise your design to ensure the highest energy efficiency.

Area and perimeter of a ellipse shape calculator calculate area and perimeter of an ellipse shape. Equivalent round duct diameter for flat oval opening. Ductwork comes in round rectangular and flat oval shape. Standard lengths of longitudinal seam duct are 5 and 6 feet.

Indicates required field rectangular width.