Air Line Length Recommended Sizes

Overview

Engineering reference data for Air Line Length Recommended Sizes in gases and compressed air.

Key Formulas

Ideal Gas Law

$PV = nRT$

Pressure × Volume = moles × gas constant × temperature.

Boyle's Law

$P_1 V_1 = P_2 V_2$

At constant temperature.

Charles's Law

$\frac{V_1}{T_1} = \frac{V_2}{T_2}$

At constant pressure.

Variables

Unit Conversions

The following conversion factors are essential for working with the recommended sizes across different engineering unit systems:

Notes on Standard Conditions

• scfm (standard cubic feet per minute) and nl/s (normal liters per second) refer to flow rates measured at different standard temperatures and pressures. These values provide a consistent basis for comparison.

References

• Original Source

Pressure Basis

The recommended sizes for compressed air pipe lines in this guide are based on a standard line pressure of 90 psig (620 kPa, 6.2 bar). Ensure your system operates near this pressure for accurate sizing. For conversions between units like psig, kPa, bar, inches, mm, etc., refer to the Unit Conversions section.

Recommended Air Line Sizes

The following recommendations are for compressed air pipe lines based on a standard line pressure of 90 psig (620 kPa, 6.2 bar).