Ventilation grille, medium heavy duty
with rolled aluminum fins
Lamella spacing 65, optically free cross-section 69%, physically free cross-section 55%.
Ventilation grille W453, front view
Ventilation grille W453, view back side with fly screen
Material
Frame made of aluminum profiles: AlMgSi 0.5 (according to EN 12020-2)
Rolled aluminum fins
304 stainless steel insect screen, mesh size on request
Surface: powder coated in any RAL color (60-80 micron) (anodizing not possible)
Ventilation grille dimensions
Installation depth: 60 mm
Overlap dimension: 25 mm
Minimum dimensions: 300 x 300 mm
Please specify when ordering: Installation dimension (width x height)
Fastening the grille
Wall anchor no. 429
For ventilation grilles from about 3 sqm, a substructure provided by the customer is necessary, suitable for the span width and wind load.
Options
Water drainage channel
Watershed
Filter
Without stop frame
Sectional drawings ventilation grille W453
Technical data ventilation grille W453
| Air diffuser | EN 13030 |
| K-factor (supply) | 13,92 |
| K-factor (discharge | 17,22 |
| Ce coefficient | 0,286 |
| Cd coefficient | 0,241 |
| Optical free cross section | 69% |
| Physical free cross section | 55% |
Tender specification W453
With frame made of extruded ALU profiles (AL Mg Si 0,5), slats rolled from aluminum strip material, slat spacing 65mm ,natural color anodized
/ coated in RAL ...., with rear stainless steel insect screen 6x6mm mesh,
Shell opening : ... x ...mm
Make: rotec ventilation grille Berlin
Model: W453 for wall mounting
Item no.: W453
English 
German