Verified by manufacturer 5 months ago
Aluminium louvres
Certificate of constancy of performance
Certificate type
Natural louvred ventilator suitable for natural ventilation as well as smoke control.
Classed as a dual purpose ventilator, providing day-to-day and smoke control ventilation and fire ventilation. Can be installed in the vertical either for low level air inlet or for high level extract.
Can permit the entry of natural daylight for most kinds of industrial and commercial buildings.
Often used as a termination piece for large ducted or air handling systems.
Natural louvred ventilator suitable for natural ventilation as well as smoke control.
Features and benefits:
Color | Silver Other |
Material | Aluminium Glass Polycarbonate |
Shape | Rectangle Square |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Uniclass | |
CAWS | L10/47 Roof ventilators L10/490 Roof ventilators H11/140 Louvres |
Product range |
Standard | To BS EN 12101-2.Guidance for specification option: CE marked. |
Mounting | Onto a curb.Into glazing.Into curtain walling.Into roof sheeting. |
Aerodynamic free area | Manufacturer's standard.Guidance for specification option: Consult manufacturer's literature for details, based on throat length and width. Aerodynamic coefficient (Cv): up to 0.68. |
Reliability classification | Re 1000.Guidance for specification option: 10 000 cycles. |
Snow load classification | Up to SL 2000. |
Low ambient temperature classification | T (-25).Guidance for specification option: T (00) to T (-25). |
Wind load classification | Up to WL 4000. |
Resistance to heat classification | B300. |
Arrangement | Louvred. |
Dimensions | |
Length | 705 mm.838 mm.971 mm.1104 mm.1237 mm.1370 mm.1503 mm..1636 mm.1769 mm.1902 mm.2035 mm.2168 mm.2301 mm.2434 mm.2567 mm.2700 mm.2833 mm.2966 mm.3099 mm.3232 mm.3365 mm.3498 mm.Manufacturer guidanceThroat length (body length = throat length + 23 mm). Flange widths and lengths are variable and need to be clarified in each instance. For the minimum dimensions of these, add 140 mm to the throat length. |
Width | 576 mm.726 mm.876 mm.1026 mm.1176 mm.1326 mm.1476 mm.1626 mm.1926 mm.2000 mm.2126 mm.2326 mm.Manufacturer guidanceThroat width (body width = throat width + 98 mm). Flange widths and lengths are variable and need to be clarified in each instance. For the minimum dimensions of these, add 140 mm to the throat width. |
Controls | Electric, 24 V d.c.Electric, 230 V a.c.Pneumatic.Manual. |
Initiation | Manual.Guidance for specification option: Manual controls only. Double-action locking.Guidance for specification option: Pneumatic or electric controls only. Failsafe open.Guidance for specification option: Pneumatic or electric controls only. Failsafe closed.Guidance for specification option: Pneumatic or electric controls only. |
Materials | |
Ventilator | |
Frame | Corrosion-resistant aluminium alloy grade 3005, insulated.Corrosion-resistant aluminium alloy grade 3005, uninsulated.Manufacturer guidanceIn accordance with EN 573-3, with stainless steel fixings. |
Louvres | Single-skin aluminium.Double-skin aluminium.Double-skin aluminium with insulation. |
Finish | Mill finish.Principal components polyester powder coated.Guidance for specification option: 75 µm thick as standard. |
Colour | Natural.RAL. |
Seals | None.Low-loss brush seals. |
Guards | Not required.Bird.Burglar.Insect. |
Accessories | Manufacturer guidanceConsult manufacturer for options and insert requirements. |
Resistance to fire | E. Guidance for specification option: To EN 13501-1. |
U-value | Up to 1.52 W/m²K (insulated); up to 1.52 W/m²K (uninsulated). Guidance for specification option: Subject to size, configuration and installation type; consult manufacturer for details. Insulated louvres also available (double-skin aluminium only). |
Sound insulation | Up to 11 dB Rw. |
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