Home > Companies > Renson Fabrications Ltd > Aluminium Louvre Grille 491

Framed-panel, single-bank, fixed-louvre aluminium ventilator with indirect airflow, for wall recess mounting.

  • Enables secure, highly weather resistant ventilation with exclusion of insects. Physical free area: 26 %.
  • Aluminium profiles with choice of finish. Blades at 33.3 mm centres.
  • Suitable for insertion into wall openings from exterior with 21 mm (maximum) flange overlap. 5 mm external flange projection.
  • Interior reveal fixing.
  • Dimensions (minimum): 100 x 100 mm. Made to measure.
  • Panel thickness: 33.5 mm.

Related literature

The following content references this product:

Standard product features

Material:

Aluminium alloy: AlMgSi 0.5 to DIN 1748.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-25-50/305 Aluminium louvre panel units

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Renson Fabrications Ltd

Tel:

+44 (0)1622 754123

Product reference

Aluminium Louvre Grille 491

Dimensions of aperture (w x h x wall thickness)

[___ x ___ x ___ mm]
[As drawing ___]

Mounting

[Backframe]
-
Nonstandard option. Required for panels larger than 3 m².
[Bracket type 418]
-
Standard option. Screw fix to reveal.
[Spring clips type 419]
-
Nonstandard option. For small panels.
[As drawing ___]

Blade fixing

[Mechanical]
-
Standard option.
[Welded]
-
Nonstandard option. For extra strength.

Finish (aluminium components)

[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

[None]
[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]
-
Bottom profile with projecting interior collection channel, weathered to exterior.

Manufacturer details

Fairfax Units 1 - 5,
Bircholt Road,
Parkwood Industrial Estate,
Maidstone,
Kent, ME15 9SF
Tel +44 (0)1622 754123
Fax +44 (0)1622 689478
NBS Plus
RIBA CPD