Ductulator Hvac Duct Sizing Calculator

The ductulator duct sizing calculator is a hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. This ductulator uses the colebrook equation to calculate the smallest duct size acceptable for the selected friction rate and duct type that stays within the selected acca manual d recommended velocities. Includes scales for friction loss per unit length air volume air velocity round duct diameter and rectangular duct diameters.

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It works with i p units united states united kingdom and metric units canada europe russia middle east asia.

Ductulator hvac duct sizing calculator.

Rectangular duct is rounded up to the nearest 1 4 inch. Convert rectangular duct to round equivalent. Enter duct airflow cfm duct velocity fpm duct length and the number of bends. Online ductulator free duct size calculator.

Include fittings in the duct tel enter either. Ductulator calculats duct dimensions using equal friction method or velocity method. Unless within 2 the diameter is rounded up to the nearest inch. It calculates both rectangular and round duct dimensions.

Sheet metal duct friction loss calculator. Friction rate velocity friction rate. Duct sizer ductulator for hvac air ducts. And it shows the velocity and or static pressure loss of air for both types of duct shape.

In wg duct tel. Home hvac hvac duct size calculator excel free ductulator hvac duct size calculator excel free ductulator 7 15 2018 01 15 00 am. Read round duct diameter inches and friction loss per 100 of duct inches of water. It is designed for calculating and sizing duct dimensions according to air volume cfm roughness velocity etc.

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