Larger volumes or higher static pressures should be dealt with on an individual.
Round duct sizing chart.
Download free duct sizing chart pdf according to ashrae standard.
Ductulator calculats duct dimensions using equal friction method or velocity method.
It works with i p units united states united kingdom and metric units canada europe russia middle east asia.
These duct chart are based on equal friction method with a friction loss value 0 1 inch 100ft.
It calculates both rectangular and round duct dimensions.
Flexible duct round metal pipe 750 1200 14 16 design airflow 50 85 125 1500 2000 180 240 325.
Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators duct size duct height net inside dimension in inches.
This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications.
And it shows the velocity and or static pressure loss of air for both types of duct shape.
Residential duct sizing guide the following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct.
Duct system sizes and airflow quick chart created date.