Series WL - Standard Weather Louvres
Verified by manufacturer 4 months ago
WL75 - 75 mm Blade Pitch
WL75 - 75 mm Blade Pitch
Standard external weather louvre, providing good resistance to rain ingress with minimal obstruction to airflow.
Application
Suitable for external use.
Description
Series WL standard weather louvres are the standard weather louvre used in many installations throughout the world. They provide good resistance to rain ingress in normal conditions with minimal obstruction to airflow. The WL louvres are available in three formats to suit any size installation.
Series:
WL38: 40 mm blade pitch (for units up to 1 x 1 m nominal size).
WL50: 50 mm blade pitch (recommended for units up to 2 m²).
WL75: 75 mm blade pitch (recommended above 2 m²).
Features and benefits:
- Standard range of single bank louvres as used in countless installations worldwide.
- Good resistance to water ingress, with low resistance to airflow.
- All WL types have a single bank of blades with a 45° face for good levels of rain resistance in the majority of conditions.
- Polyester powder coating to the full range of RAL and BS colours.
- Available with burglar/ security bars.
General information
Color | Grey Guidance for specification option: Mill aluminium (standard). Other Guidance for specification option: Polyester powder coating to any RAL or BS colour. |
Finish | Mill Powder-coated |
Material | Aluminium |
Shape | Rectangle Square |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | One year |
Uniclass | |
CAWS | L10/54 Louvres L10/650 Metal louvres |
Specification data - Aluminium louvre panel units
Size (l x w x d) | Bespoke.Guidance for specification option: Insert requirements. |
Material | Extruded aluminium.Guidance for specification option: Bright zinc plated (BZP) steel screws or aluminium pop rivets. |
Finish | Milled.Guidance for specification option: Standard. Polyester powder coating.Guidance for specification option: Optional. Satin anodized (AA5).Guidance for specification option: Optional - only with WL50-25F/30FW. |
Colour | Grey (mill).Guidance for specification option: Standard (Mill). RAL colour.Guidance for specification option: Polyester powder coated (RAL) - insert requirements. BS colour.Guidance for specification option: Polyester powder coated (BS) - insert requirements. Grey (anodized).Guidance for specification option: Satin anodised - AA5 (SAA) - only available with WL50-25F/30FW. |
Texture | Manufacturer guidanceConsult manufacturer for details and insert requirements. |
Construction | Flanged frame.Guidance for specification option: Standard. Recessed frame.Guidance for specification option: Optional. Reversed frame.Guidance for specification option: Optional. |
Air intake and exhaust performance | |
Application | Intake and extract. |
Weather performance | |
Water penetration class (minimum) | To BS EN 13030, Class C and D.Guidance for specification option: Testing carried out on WL75 standard weather louvres by BSRIA. Consult manufacturer's literature for details. |
Discharge loss coefficient (minimum) | To BS EN 13030, Class 3.Guidance for specification option: Testing carried out on WL75 standard weather louvres by BSRIA. Consult manufacturer's literature for details. |
Louvre configuration | |
Number of banks | Manufacturer guidanceConsult manufacturer for details and insert requirements. |
Blade orientation | Horizontal. |
Blade pitch | 75 mm.Guidance for specification option: 45° face slope. |
Blade angle | Fixed. |
Accessories | Not required.Bird mesh (BM).Guidance for specification option: 12.7 x 12.7 mm weave, galvanized steel. Insect mesh (IM).Guidance for specification option: 1.6 x 1.6 mm weave, G304 stainless steel. Vermin mesh (VM).Guidance for specification option: 6 x 6 mm weave, G304 stainless steel. Burglar/ security bars (BB).Guidance for specification option: Supplied in a powder coated black finish as standard. Face mounted drip cill (DC).Guidance for specification option: Recessed and reversed flange louvres will have a folded sheet metal drip cill with a profile appropriate to the selected blade type. Rear mounted drip tray (DT).Guidance for specification option: If specified on a reversed flange weather louvre, the drip tray will protrude into the aperture. Required for Class C performance. Combination units.Guidance for specification option: Consult manufacturer's literature and insert requirements. |
Flanges | Not required. Guidance for specification option: Recessed or revered frame construction. 50 mm flat flange - deep (50FD). Guidance for specification option: Standard. 3” (76.2 mm) flat flange (3” x 3” x 1/8”). Guidance for specification option: Optional. 4” (101.6 mm) flat flange (4” x 4” x 1/8”). Guidance for specification option: Optional. |
Fixings | Not required. Guidance for specification option: Standard. Pre-punched face fixing holes (FH). Guidance for specification option: Only available with flanged and reversed flange louvres. Rear mounted fixing lugs (RFL). Guidance for specification option: Only available with flanged and reversed flange louvres. Glazing bar (GZ). Guidance for specification option: Only available with flanged and recessed louvres. State depth required. Manufacturer guidanceConsult manufacturer's literature for details. |
Mass | 15 kg. Manufacturer guidanceMass/m² face area. |
Free area | Approx. 50%. |
Sustainability data
Country of product manufacture | United Kingdom |
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