# Air Flow Rate through Piping

## Air Flow Rate through Piping formula

\(\large{ Q_a = 60 \; \pi \; v_a \; { \left( \frac {d}{24} \right) ^2 } }\) |

### Where:

\(\large{ Q_a }\) = air flow rate

\(\large{ v_a }\) = air velocity

\(\large{ \pi }\) = Pi

\(\large{ d }\) = pipe inside diameter

Tags: Equations for Pipe Sizing Equations for Flow Equations for Air