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answered Apr 14, 2014 by odadmin (21,030 points)

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.

commented May 6, 2014 by odadmin (21,030 points)
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