Maximum airflow (SCFM)

The following table shows the maximum air flow at various pressures (PSI) for a variety of hose diameters.
To be used as a guide when selecting the appropriate diameter of piping and tooling for a compressed air network.

maximum airflow chart
maximum airflow chart

The flow values shown in this table take into account a pressure drop (P) established in accordance with the following scales:

Pressure drop (P) per 100ft of hose
10% of applied pressure
15% of applied pressure

Hose diameter in inches
1/8, 1/4, 3/8, 1/2
3/4, 1, 1-1/4, 1-1/2, 2, 2-1/2, 3