Square Duct To Round Duct Calculator

Friction loss calculator for sheet metal ducts.

Square duct to round duct calculator.

Rectangular to round conversion. If you need more information or help please contact. Add for right seam. The table below can be used to compare equivalent diameters for rectangular and round circular 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. The table is based on the ducts friction loss formula. Sheet metal duct friction loss calculator. Duct areas in square feet can be calculated by using geometry rules for round areas.

Round use a slightly smaller diameter for less crimping or to finish the top with an added round collar lower. Read round duct diameter inches and friction loss per 100 of duct inches of water. Corona ca 92882 office phone. To then convert that to volume you multiply the resulting area by the length.

The rectangular dimensions and the air flow volume are adapted to the equal friction loss. I want to calculate. Wide x deep lower scrape. Step 5 select a size of square duct that has the same area.

The area will cover a two dimensional slice of the duct. 1 of 2 identical pieces like a clam. Remember to add if bending the lower scrape in or out upper diameter. Multiply this number by 3 14 pi to get the area of the round duct in square inches for example 16 x 3 14 50 24 square inches.

Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators. This calculator can be used to calculate the area in square feet when the height inches and width inches of rectangular duct is known. Enter duct airflow cfm duct velocity fpm duct length and the number of bends. Other hart cooley mobile tools.

New duct sizing chart xls. Add for left seam. Equivalent duct calculator round vs rectangular. Square to round calculator.

It is particularly handy to provide the area in square feet of round duct as well. Flexible duct round metal pipe 750 1200 14 16 design airflow 50 85 125 1500 2000 180 240 325 525. This is a handy tool when deciding what size duct you want to use for your application.