Ductulator Hvac Duct Sizing Calculator 1998

Read round duct diameter inches and friction loss per 100 of duct inches of water.

Ductulator hvac duct sizing calculator 1998.

Includes scales for friction loss per unit length air volume air velocity round duct diameter and rectangular duct diameters. 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. Sheet metal duct friction loss calculator. It will automatically adjust the size to keep from exceeding the maximum manual d velocities for residential duct systems.

Rectangular duct is rounded up to the nearest 1 4 inch. Include fittings in the duct tel enter either. 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. Convert rectangular duct to round equivalent.

Air duct also termed as ductulator is a passage that is used to provide fresh air into rooms buildings etc air ducts may be in circular square and in rectangular shapes. This free ductulator calculates the exact duct size round and rectangular for the given friction rate duct type and amount of airflow. In wg duct tel. This online air duct calculator is used to calculate the velocity of air flow feet per minute fpm and feet per second fps through any shaped circle square or rectangle ductulator with either diameter sides or area.

Friction rate velocity friction rate.