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Wall louvre 421: built-in, heavy-duty series

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Specifications sheet

Specifications sheet

» Aluminium Al Mg Si 0,5

» Natural anodised: 20 to 22 micron
» Dark bronze anodised: 20 to 22 micron
» Powder-coated in any RAL-colour: pre-assembled product is chromatised and
powder-coated in order to guarantee a thorough powder-layer at all corner
joints and cutting sections.

» L-shaped window profiles with a total height of 51 mm cut at mitre of 45° and assembled through compression and a clamping corner.
» Aluminium blade supports are rivetted on the vertical perforated frame-profiles.
» Louvres with a width over 700 mm are provided with an extra perforated Uprofile to fix additional blade supports in order to strengthen the whole construction.
» The Z-shaped blades with a height of 50 mm are clipped onto the support profiles.
» The pitch of the blades is 35 mm.
» An anti-static and stainless steel insect mesh (18/8) is fitted flush on the back of the louvre by means of a nylon cord.

» Depth to fit: 46 mm
» Total thickness: 50 mm
» Visual free area: 70%

Can be provided with a water channel, fixed just under the lowest blade to ensure an optimal watertightness according to HEVAC test procedures:
B at an air velocity of 0,5 m/s
B at an air velocity of 0,5 m/s
C at an air velocity of 1 m/s
C at an air velocity of 1,5 m/s
When fitted with an insect mesh 2,3 mm X 2,3 mm.
This water channel is made of Aluminium Al Mg Si 0,5 and anodised or powder-coated in any RAL-colour in the same finish as the louvre.

» Dowels no. 1428 are supplied to fix the louvre.