General guidelines: Velocities used for preliminary pipe sizing

Asked by esjensen 6 years, 2 months ago | 1 Answers


1 Answer

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odadmin 6 years, 2 months ago

Following velocities can be used for preliminary pipe sizing:

  • Water and other liquids 0.5 to 5 m/s
  • Air and other gases 10 to 20 m/s
  • Saturated steam (dry) 15 to 30 m/s
  • Superheated steam 30 to 60 m/s
  • Vacuum pipes 10 to 100 m/s

Note: Above guidelines are only applied for piping not containing solids or two phase flow.

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