• AD
  • air flow
  • width
  • spigot
  • height
  • filter G3 on circumference
  • filter G3 on inner cylinder
  • volume control damper
  • 3 – way air discharge
  • depth
  • speed in the spigot
  • speed on perforation
  • pressure drop
  • noise level
  • print
  • material
  • colour
  • warning, speed too high!
  • warning, speed too high!
  • noise can not be measured
  • tip
  • 1 – round spigot
  • 1 – rectangular spigot
  • spigot (a)
  • spigot(b)
  • flange
  • width < spigot (a) + 200
  • Optimal speed in spigot is 3 -7 m/s
  • Optimal speed on perforation 0.5 m/s
  • 2-round
  • 3-semicircular
  • 4-corner
  • dimension
  • spigot offset