Enter duct airflow cfm duct velocity fpm duct length and the number of bends.
Ductulator hvac duct sizing calculator.
It works with i p units united states united kingdom and metric units canada europe russia middle east asia.
Include fittings in the duct tel enter either.
Ductulator calculats duct dimensions using equal friction method or velocity method.
Metal ductboard flex size by.
It calculates both rectangular and round duct dimensions.
Home hvac hvac duct size calculator excel free ductulator hvac duct size calculator excel free ductulator 7 15 2018 01 15 00 am.
Online ductulator free duct size calculator.
In wg duct tel.
Includes scales for friction loss per unit length air volume air velocity round duct diameter and rectangular duct diameters.
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.
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.
Friction rate velocity friction rate.
Convert rectangular duct to round equivalent.
Rectangular duct is rounded up to the nearest 1 4 inch.
Duct sizer ductulator for hvac air ducts.
Unless within 2 the diameter is rounded up to the nearest inch.