Ductulator Hvac Duct Sizing Calculator 1998

In wg duct tel.

Ductulator hvac duct sizing calculator 1998.

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. Convert rectangular duct to round equivalent. Includes scales for friction loss per unit length air volume air velocity round duct diameter and rectangular duct diameters. Include fittings in the duct tel enter either.

Enter duct airflow cfm duct velocity fpm duct length and the number of bends. This free ductulator calculates the exact duct size round and rectangular for the given friction rate duct type and amount of airflow. Friction rate velocity friction rate. Unless within 2 the diameter is rounded up to the nearest inch.

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. Rectangular duct is rounded up to the nearest 1 4 inch. Metal ductboard flex size by. 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.

It will automatically adjust the size to keep from exceeding the maximum manual d velocities for residential duct systems.