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Wall louvre 425: built-in, extra-heavy-duty series

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Specifications sheet

Specifications sheet

Material
» Aluminium Al Mg Si 0,5

Finishing
» Natural anodised: 20 to 22 micron
» Dark bronze anodised: 20 to 22 micron
» Powder-coated in any RAL-colour: pre-assembled product is conversed to ensure a solid adherence (Brugal) and powder-coated in order to guarantee a thorough powder-layer at all corner joints and cutting sections: 60 to 70 micron.

Description
» L-shaped window profiles with a total height of 64 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 U-profile to fix additional blade supports in order to strenghten the whole construction.
» The Z-shaped blades with a height of 100 mm are clipped onto the support profiles. » The pitch of the blades is 82 mm.
» An anti-static and stainless steel bird mesh screen (18/8) is fitted flush on the back of the louvre by means of a nylon cord.

Specification
» Depth to fit: 81,5 mm
» Total thickness: 86,5 mm
» Visual free area: 86%

Option
Can be provided with a water channel, fixed just under the lowest blade to ensure an optimal watertightness according to HEVAC test procedures: 93,9 % at an air velocity of 0,5 m/s 90,0 % at an air velocity of 1 m/s 83,5 % at an air velocity of 1,5 m/s When fitted with an insect mesh 2,3 mm X 2,3 mm. This waterchannel is made of aluminium Al Mg Si 0,5 and anodised or powder-coated in the same finish as the louvre.

Fixing
» Brackets ref. 429 are supplied as standard.