Compressed air pipe sizing
Flow (ANR) + pressure + velocity → minimum inner diameter and actual velocity.
How to use
- Enter the calculation conditions
Enter the dimensions, loads, speeds or operating conditions requested by the form.
- Run the calculation
The tool applies the formulas shown on this page to the entered values.
- Review the result
Review the resulting specification and checks, then verify them against the cited source, current standard and real operating conditions before use.
Core formula
Q_act = Q_ANR · Patm / (P + Patm)
Example using default values
Q_act = 1,000 · 0.1013 / (0.6 + 0.1013) = 144 L/min
Source: Boyle's law; continuity equation; SMC compressed-air piping practice.
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