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The Toolkit

The hour the pig arrives.

Line length and flow rate in; velocity and the hour the pig arrives out.

How this is calculated.

A pig travels at the fluid velocity — the volumetric flow rate divided by the pipe's cross-sectional area. Divide the line length by that velocity for the travel time.

A = π · (D/2)²
v = Q / A
t = L / v

Questions

What speed should a cleaning pig run?

Typically 1–5 m/s for cleaning; slower, steadier speeds (≈0.5–4 m/s) for ILI tools per vendor spec.

Need this done in the field?

Talk to our engineers

Assumes steady flow and full-bore pig travel; bypass pigs and slugging change real-world timing.

Built by NewHouse Energies — free for the industry.