Ductulator Hvac Duct Sizing Calculator 1998

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.

Ductulator hvac duct sizing calculator 1998.

Sheet metal duct friction loss calculator. 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. It will automatically adjust the size to keep from exceeding the maximum manual d velocities for residential duct systems. 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.

Unless within 2 the diameter is rounded up to the nearest inch. Convert rectangular duct to round equivalent. Metal ductboard flex size by. 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. Enter duct airflow cfm duct velocity fpm duct length and the number of bends. 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. Friction rate velocity friction rate.

Include fittings in the duct tel enter either.