D21/D22
Return Air Baffle Plate Diffuser square/round
The return air baffle plate diffuser is used to remove air in combination with the supply air baffle plate diffuser (identical outer view).
Characteristic features of diffusers:
Questions about the product
- Low pressure drop
- Lower noise level
- Simple, attractive design
- Flush mounted to ceiling
- BIM: Product is available in the manufacturers catalog Trimble Nova
Products group
Air Diffusers
Type
Deflector Plate Diffusers
Article
D21/D22
Return Air Baffle Plate Diffuser square/round
Model/Nominal volumetric flow m3/h
- 100: 100
- 125: 160
- 160: 260
- 200: 405
- 250: 635
Design
- Plenum box made of galvanised sheet steel (zinc electroplating) with flow-optimised cylindrical flow straightener, perforation panel made of galvanised sheet steel
- 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 D21/S, integrated in ceiling, i.e. perforated for air diffusion, customer supply, in ceiling panel
- Type D21/G, with square frame, i.e. square ceiling cut-out, customer supply
- Type D22/R, with round frame, i.e. round ceiling cut-out, customer supply
- Standard colour RAL 9010, other colours on request
- With integrated throttling device, additional throttling device available as option
- Reinforced design available in concrete encasement version (square and round)
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.
