Round ventilation grille W431R

Round grille, without stop

Download PDF rundes Lüftungsgitter W431R [97 KB] 

Ventilation grille view from front

Back of the ventilation grille with stainless steel fly gauze

Material

Made of aluminum profiles: AlMgSi 0.5 (according to EN 12020-2)
304 stainless steel insect screen (machining on request)
Silver color (E6/EV1) - bronze color (E6/C34) (20 micron) anodized or powder coated according to RAL colors (60-80 micron)
Frame welded on one side only

Dimensions

Slat spacing: 33.3 mm
Installation depth: 40 mm
Overlap dimension: 22 mm
Minimum diameter: 300 mm

Maximum diameter:
- 1400 mm if anodized in E6/EV1
- 1500 mm if RAL powder coated
- Above 1500 mm: 2-part

Mounting

Screws are supplied

Sectional drawing

Technical data ventilation grille W431R
Air diffuser EN 13030
K-factor (supply) 23,56
K-factor (discharge 25,51
Ce coefficient 0,206
Cd coefficient 0,198
Optical free cross section 59%
Physical free cross section 40,5%
IP class (ventilation grille with insect screen; electrical installation at least 100 mm from ventilation grille). IP2XD
Tender texts round ventilation grille

Ventilation grille 431R, round grille, for wall mounting

with horizontal, fixed and extruded ALU weather protection blades (AL Mg Si 0.5),
Slat spacing 33.3 mm, for screwing onto the facade, installation height 29 mm,
natural anodized / coated in RAL ...., with stainless steel insect screen on the back ,
Total dimensions of the grid : ... x ...mm

Make: rotec ventilation grille Berlin
Model: W431R, Round
Item no.: W431R

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