NBS Source
I'm a manufacturer
Compare variants

Series WL - Standard Weather Louvres

Verified by manufacturer 5 months ago

WL38 - 40 mm Blade Pitch

HVC Supplies Variant:

Standard external weather louvre, providing good resistance to rain ingress with minimal obstruction to airflow.

Jump to:
+44 (0)1384 376555 Website

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

Pr_30_59_48_04 Aluminium louvre panel unitsPrimary

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 guidance

Consult 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 guidance

Consult manufacturer for details and insert requirements.

Blade orientation

Horizontal.

Blade pitch

40 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. 

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.

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.

30 mm flat flange (30FW).

Guidance for specification option:

Standard.

25 mm flat flange (25F).

Guidance for specification option:

Optional.

50 mm flat flange - shallow (50FS).

Guidance for specification option:

Optional.

3” (76.2 mm) flat flange (3” x 2” x 1/8”).

Guidance for specification option:

Optional.

Show more

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 guidance

Consult manufacturer's literature for details.

Mass

12 kg.

Manufacturer guidance

Mass/m² face area.

Free area

Approx. 50%.

Sustainability data

Country of product manufacture

United Kingdom

Similar products from HVC Supplies

Series GL50 - Glazing Louvres

Series GL50 - Glazing Louvres

Series HPL80 - Ultra High Performance Weather Louvres

Series HPL80 - Ultra High Performance Weather Louvres