Model NVG non vision air transfer grille incorporates a set of inverted vee section vanes to ensure a vision proof assembly. A matching flange is available for either standard or extra wide doors or partition.
The grille is suitable for sidewall, door or partition mounting and is normally used for extract or air transfer applications. Typical installations include offices, shops, hotels, restaurants, schools and most commercial or industrial buildings.
Material Extruded aluminium sections Construction 25mm wide flange frame with corners mitred and welded. Overlapping inverted 'V' aluminium sections are used for the vision proof core.
Available as standard in either white or silver stove enamel paint finish. Other paint finishes also available as an option. Standard fixing is with No.8 countersunk headed screws (BY OTHERS) using prepared countersunk screw holes in flange
Minimum size is 100mm x 100mm up to a maximum single section of 1200mm x 1200mm. Special sizes also available.