Aluminium Louvre Grille 451


Framed panel, single bank, fixed louvre aluminium ventilator, for wall recess mounting.

  • Enables secure, weather resistant ventilation with exclusion of insects. Physical free area: 46 %.
  • Aluminium profiles with choice of finish and blade centres.
  • Suitable for insertion into wall openings from exterior. 25 mm (maximum) flange overlap. 5 mm flange projection.
  • Reveal fixing.
  • Dimensions (minimum): 300 x 300 mm. Made to measure.
  • Panel thickness: 64.5 mm.
  • Water tightness at wind speed 1 m/s: Class D (low), without water channel.
  • Components supplied uncut. May be subject to minimum quantities.

General information


Aluminium alloy: AlMgSi 0.5 to DIN 1748

Uniclass 2015

Pr_30_59_48_04 Aluminium louvre panel unitsPrimary


L10/650 Metal louvres

Specification data - Aluminium louvre panel units

Product Reference

Aluminium Louvre Grille 451

Aluminium Louvre Grille 451, self-assembly

Aperture (w x h)

___ x ___ mm

As drawing ___



Nonstandard option. Required for panels larger than 3 m².

Bracket type 429

Standard option. Screw fix to reveal.

As drawing ___

Blade centres

66 mm

Standard option.

___ mm

Blades on individual clips. For centres larger than 66 mm. Nonstandard option.

As drawing ___

Finish (aluminium components)

Anodized, bronze

20 µ. Type E6/ EV1 to DIN 17611.

Anodized, natural

20 µ. Type E6/ C34 to DIN 17611.

Polyester powder coating, RAL colour ___, sheen ___ %

60–70 µ.

Polyester powder coating, Syntha Pulvin colour ___, sheen ___ %

60–70 µ.

Other requirements


Coupling bar

For multiple panel unit.

Dust filter

With aluminium frame. Fixes to interior of louvre panel.

Mesh, 2.3 x 2.3 mm

Nonstandard option. Grade 304 stainless steel.

Mesh, 6 x 6 mm

Standard option. Grade 304 stainless steel.

Water channel

For insertion behind bottom louvre. Projecting internal collection channel with drip to exterior.

Standard product features


Aluminium alloy: AlMgSi 0.5 to DIN 1748.


Third party certifications

  • BSRIA Ltd : Water tightness testing to EN 13030

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