La rejilla de superficie está fabricada con perfiles de aluminio AlMgSi 0.5 según la norma EN 12020-2. Se suministra de serie con malla antiinsectos de acero inoxidable 304 con una luz de malla de 2,3 × 2,3 mm, mientras que la malla de alambre de acero inoxidable 304 con una luz de malla de 6 × 6 mm está disponible bajo pedido. El acabado está disponible en anodizado natural o bronce (20 micras) o con recubrimiento en polvo en cualquier color RAL, Sikkens, NCS o Interpon, con un espesor de recubrimiento de entre 60 y 80 micras.
Especificaciones
Material
The surface-mounted grille is manufactured from aluminium profiles AlMgSi 0.5 according to EN 12020-2. It is supplied as standard with stainless steel insect mesh 304 with a mesh size of 2.3 × 2.3 mm, while stainless steel wire mesh 304 with a mesh size of 6 × 6 mm is available on request. The finish is available in natural or bronze anodised (20 microns) or powder-coated in any RAL, Sikkens, NCS or Interpon colour with a coating thickness between 60 and 80 microns.
Dimensions
The blade pitch is 33 mm and the overall thickness of the grille is 29 mm. The minimum production dimensions are 120 × 120 mm.
Fixing
The grille is supplied with screws and plugs. It can also be mounted as a removable frame on the window profile under the name ST-432, as an alternative to the fixed ST-431 version.
Options
Available options include a burglary-resistant version ST-431-RC2.
Typical applications
This grille is suitable as a fixed ventilation grille and can be used for night cooling, allowing intensive night ventilation. It serves as a standard solution for surface-mounted applications.