Vacuum - Flow Measurement

Measure air volume flow in vacuum. Convert between standard volume flow (scfm/nl/s) and actual volume flow (acfm/al/s) using pressure and temperature.

Vacuum - Flow Measurement Calculator

Convert standard volume flow to actual volume flow in vacuum conditions.

Use the formula:

qa = qs (29.92 / p) ((t + 460) / 520)

Where:

  • qa = actual volume flow (acfm)
  • qs = standard volume flow (scfm)
  • p = actual pressure (in Hg absolute)
  • t = temperature (°F)
Calculator

Inputs

Results

Actual Volume Flow (qa)-- acfm
Conversion Factor--
Vacuum - Flow Measurement | MEPKit Engineering Tools | MEPKit