Aluminium Burglar Resistant Louvre Grille 423

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

  • Enables very secure, weather resistant ventilation with exclusion of insects. Physical free area: 24 %.
  • Aluminium profiles with choice of finish.
  • Blades are profiled to accept passage of 20 mm steel reinforcement bars, supplied fitted to alternate blades and projecting 100 mm from sides of unit to allow for building-in to wall fabric at 100 mm vertical centres. Burglary protection Class 4 to EN 1627.
  • Dimensions (minimum): 150 x 150 mm. Made to measure.
  • Panel thickness: 50 mm.

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 Burglar Resistant Louvre Grille 423


Single panel, aperture (w x h), ___ x ___ mm

Single panel, to outer edge of frame (w x h), ___ x ___ mm

Multiple panel, as drawing ___

Requires coupling bars.

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

Dust filter

With aluminium frame. Fixes to interior of louvre panel.

Mesh, 2.3 x 2.3 mm

Standard option. Grade 304 stainless steel.

Mesh, 6 x 6 mm

Nonstandard option. Grade 304 stainless steel.

Standard product features


Aluminium alloy: AlMgSi 0.5 to DIN 1748.

Third party certifications
  • BBRI: Certificate: Report DE78A982
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