WG
June 23, 2022
WGF
June 23, 2022

WGK

WITH SMALL BLADE PITCH

External weather louvres to protect ventilation and air conditioning systems against the direct ingress of rain, leaves and birds into fresh air and exhaust air openings.

  • Maximum width of 1997 mm, maximum height of 1997 mm
  • Low differential pressure due to aerofoil blades
  • Low air-regenerated noise
  • All aerodynamic data is measured in aerodynamics and acoustics laboratories
  • Available in standard sizes and many intermediate sizes
  • Simple and quick installation due to perimeter border

Optional equipment and accessories

  • Installation subframe
  • Insect screen
  • Powder-coated or with anodised finish
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Description

General Information

Application

  • External weather louvres with small blade pitch, for the fresh air and exhaust air openings of ventilation and air conditioning systems
  • Protection against the direct ingress of rain as well as against leaves and birds
  • Recommended face velocity for outdoor air openings 2 – 2.5 m/s max.

Special features

  • Low differential pressure and low air-regenerated noise due to aerofoil blades
  • Simple and quick installation due to perimeter border
  • Silicone free

Nominal sizes

  • B: 97, 147, 197, 297, 397, 497, 597, 797, 997, 1197, 1397, 1597, 1797, 1997 mm (intermediate sizes 98 – 1996 mm in increments of 1 mm)
  • H: 97,147, 197, 247, 297, 347, 397, 447, 497, 597, 797, 997, 1197, 1397, 1597, 1797, 1997 mm (intermediate sizes 122 – 1972 mm in increments of 25 mm)

Construction

Cover grille

    • Crimped wire mesh
    • 1: With insect screen, galvanised steel
    • 3: With insect screen, stainless steel

 Front border

    • With holes
    • U: without holes

Parts and characteristics

  • Front border
  • Regular blades and bottom blade
  • Crimped wire mesh
  • Insect screen (optional)
  • Visible stabilising mullion from B = 597 mm, two mullions from B = 1198 mm, three mullions from B = 1797 mm

Accessories

  • Installation subframes for the fast and simple installation of external weather louvres

Construction features

  • Border, material thickness 1.3 mm
  • Blades, material thickness 1.35 mm
  • Crimped wire mesh at the rear, mesh aperture 6 × 6 × 0.63 mm
  • Optional insect screen at the rear, mesh aperture 1.25 × 1.25 × 0.4 mm
  • Border fixing holes

Materials and surfaces

  • Border, blades and stabilising mullions made of extruded aluminium sections, material no. EN AW-6060 T66, with anodised finish, colour to EURAS standard E6-C-0, natural colour
  • Crimped wire mesh made of galvanised steel
  • P1: powder-coated, RAL CLASSIC colour
  • PS: powder-coated, NCS or DB colour

Maintenance

  • Maintenance-free, as construction and materials are not subject to wear 

Description

Variants

Parts and characteristics

    • Front border
    • Regular blades and bottom blade
    • Crimped wire mesh
    • Insect screen (optional)
    • Visible stabilising mullion from B = 597 mm, two mullions from B = 1198 mm, three mullions from B = 1797 mm

Accessories

    • Installation subframes for the fast and simple installation of external weather louvres

Nominal sizes

    • B: 97, 147, 197, 297, 397, 497, 597, 797, 997, 1197, 1397, 1597, 1797, 1997 mm (intermediate sizes 98 – 1996 mm in increments of 1 mm)
    • H: 97,147, 197, 247, 297, 347, 397, 447, 497, 597, 797, 997, 1197, 1397, 1597, 1797, 1997 mm (intermediate sizes 122 – 1972 mm in increments of 25 mm)

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