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CSS-FD - Auditorium Step Swirl Diffuser Current Range

Swirl diffuser to discharge supply air from vertical step face in tiered auditoria.

Volume flow rate

  • ≤ 16 L/s (58 m³/h)

Nominal sizes

  • DN100
  • DN125

Sound power level

  • ≤ 18 dB(A)


  • For auditoria with tiered flooring, with and without fixed seating
  • Built into step front at apptroimately 100 mm height
  • Turbulent, radial discharge flow with intensive indoor air admixture resulting in intense velocity decay and rapid temperature equalisation
  • Installation in wooden or concrete steps
  • Connection to pressurised plenum
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