3.4. NTK floor twist outlet DB-N-DN 215

Installation in floor plenums; air supply from below, with vertical jet axis.​


Volume flow rate range 8.5 – 16.5 l/s [30 – 60 m³/h]
Nominal size DN 215


  • Slim vertical jet with intensive indoor air admixture
  • For low floor plenums, installation with floor insert in floor orifices
  • Twist element and clamp insert made of plastic
  • For air connection to the 'pressurized plenum' System
  • Floor insert with perforated throttle disk 
  • Available on request with central recess to accommodate floor covering