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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