Air Velocities in Duct Work

Recommended maximum air velocities in ventilation duct work

Air velocities in ducts should not exceed certain limits to avoid high pressure loss and unacceptable noise generation. The values below are common guidelines for some typical applications.  

Air DuctsAir Velocity
Combustion air ducts 12 - 20 40 - 66
Air inlet to boiler room 1 - 3 3.3 - 9.8
Warm air for house heating 0.8 - 1.0 2.6 - 3.3
Vacuum cleaning pipe 8 - 15 26 - 49
Compressed air pipe 20 - 30 66 - 98
Ventilation ducts (hospitals) 1.8 - 4 5.9 - 13
Ventilation ducts (office buildings) 2.0 - 4.5 6.5 - 15

Related Topics

  • Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more

Related Documents

Tag Search

  • en: air velocity ducts
  • es: conductos de velocidad del aire
  • de: Luftgeschwindigkeitskanäle

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