NBS Source
Aluminium Louvre Grille 431

Description

Framed, fixed louvre aluminium ventilator, for surface mounting to external walls or to external face of window frames.

  • Enables secure, weather resistant ventilation with exclusion of insects. Physical free area: 43 %.
  • Aluminium profiles with choice of finish. Blades at 33.5 mm centres.
  • Suitable for screw fixing to exterior face of wall or frame of inward opening windows.
  • Choice of standard dimensions.
  • Panel thickness: 29 mm.

General information

Size

165 x 165 mm

225 x 225 mm

325 x 325 mm

425 x 425 mm

525 x 525 mm

Material

Aluminium alloy: AlMgSi 0.5 to DIN 1748

Uniclass 2015

Pr_30_59_57_58 Overhead ventilatorsPrimary

CAWS

L10/260 Wood windows

L10/335 Aluminium windows

L10/410 Composite windows

L20/20 Wood flush doors

L20/25 Wood panelled doors

L20/270 Wood doors

L20/30 Wood doors

L20/430 Wood doorsets

P21/895 Door mounted air transfer grilles

Product range

Louvres / Surface Mounted Grilles

Specification data - Overhead ventilators

Product Reference

Aluminium Louvre Grille 431, self-assembly

Aluminium Louvre Grille 431, rectangular

Aluminium Louvre Grille 431, round

Size

165 x 165 mm

225 x 225 mm

325 x 325 mm

425 x 425 mm

525 x 525 mm

Mounting

Window frame fix

Wall fix

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 ___ %

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

60–70 µ.

Other requirements

Insect mesh, 2.3 x 2.3 mm

Standard option. Grade 304 stainless steel.

Insect mesh, 6 x 6 mm

Nonstandard option. Grade 304 stainless steel.

Standard product features

Material:

Aluminium alloy: AlMgSi 0.5 to DIN 1748.

Fixing points:

Consult supplier for required tolerances between edge of unit and edge of aperture.

Literature

Louvres

Louvres

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