The diameter of the circular duct to be calculated.
The width of the rectangular duct to be calculated.
The height of the rectangular duct to be calculated.
A definition of how tight the duct system is. Valid within the limits below.
| ||Pa ||Pa|
|A ||500 ||-500|
|B ||1000 ||-750|
|C ||2000 ||-750|
|D ||2000 ||-750|
It pressures inside the current duct.
The ambient air temperature.
The pressure on the duct from ambient air.
The largest allowable leakage flow that can occur through the duct per meter.