D25/D26
Return air diffuser for flush ceiling installation square/round

The reinforced version for flush ceiling installation is supplied in single parts and ensures the safe installation of the air diffusers. The return air diffuser for flush ceiling installation is used to remove air in combination with the supply air diffuser (identical outer view).

Characteristic features of diffusers:

  • Low pressure drop
  • Lower noise level
  • Simple, attractive design
  • Flush mounted to ceiling
  • BIM: Product is available in the manufacturers catalog Trimble Nova
Questions about the product

Products group

Air Diffusers

Type

Deflector Plate Diffusers

Article

D25/D26
Return air diffuser for flush ceiling installation square/round

Model/Nominal volumetric flow m3/h

  • 100: 120
  • 125: 200
  • 160: 300

Design

  • Reinforced plenum box made of galvanised sheet steel (zinc electroplating) with flow-optimised cylindrical flow straightener, perforation panel made of galvanised sheet steel, supplied in single parts: Concrete encasement and front grille.
  • Thickness 0,7 mm, hole diameter 5,0 mm, free cross-section 46 %, powder-coated surface
  • Round connecting nozzle to connect return air

Versions

  • Type D25/G, reinforced version with square front grille
  • Type D26/R, reinforced version with round front grille
  • Standard colour RAL 9010, other colours on request
  • With integrated throttling device

Tolerance: With mounting frames/grilles or ceiling cut-outs provided or supplied by customer, a size allowance of +1,5 mm must be taken into account.

This note is irrelevant when our genuine frames and grilles (Types G and R) are used.