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Air Hose Friction

Reference data and engineering information about air hose friction for gases and compressed air applications.

airhosefriction

Overview

Engineering reference data for Air Hose Friction in gases and compressed air.

Key Formulas

Ideal Gas Law

PV=nRTPV = nRT

Pressure × Volume = moles × gas constant × temperature.

Boyle's Law

P1V1=P2V2P_1 V_1 = P_2 V_2

At constant temperature.

Charles's Law

V1T1=V2T2\frac{V_1}{T_1} = \frac{V_2}{T_2}

At constant pressure.

Variables

SymbolDescriptionUnit
PPPressurePa
VVVolume
TTTemperatureK
RRGas constant8.314 J/(mol·K)

Chart Color Coding

4 rows
Color coding for compressed air friction loss charts by gauge pressure.
pressure
key
parameter
50
70
90
110

Source: engineeringtoolbox.com

Unit Conversions

4 rows
Common unit conversions for pressure, length, and flow rate.
pressure
key
parameter
1 psig
1 inch
1 ft (foot)
1 scfm

Source: engineeringtoolbox.com

4 rows
Color coding for compressed air friction loss charts by gauge pressure.
pressure
key
parameter
50
70
90
110

Source: engineeringtoolbox.com

4 rows
Common unit conversions for pressure, length, and flow rate.
pressure
key
parameter
1 psig
1 inch
1 ft (foot)
1 scfm

Source: engineeringtoolbox.com

References