D31
Combined supply/return air diffuser square
The combined supply/return air diffuser is designed to meet the highest comfort criteria and to discharge air in ventilation, cooling and heating operation with high ventilation efficiency.
Supply air is discharged on three sides, horizontally, radially and evenly along the ceiling. The high induction effects directs the flow of contaminated air to the outlet point. Contaminated air is extracted directly on the fourth side before induction air mixes with supply air. This significantly increases ventilation efficiency and the values are comparable with linear air flow.
Characteristic features of diffusers:
Characteristic features of diffusers:
Questions about the product
- Supply and return air combined in one diffuser
- High ventilation efficiency
- 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
D31
Combined supply/return air diffuser square
Model/Nominal volumetric flow m3/h
- 100: 55
- 125: 90
- 160: 145
- 200: 230
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
- One round connecting nozzle for supply air duct and one for return air duct.
Versions
- Type D31/S, integrated in ceiling, i.e. perforated for air diffusion, customer supply, in ceiling panel
- Type D31/G, with square frame, i.e. square ceiling cut-out, customer supply
- Standard colour RAL 9010, other colours on request
- With or without 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.