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Aluminium Cover Grilles

Verified by manufacturer 13 hours ago

Covers for air transfer grilles

Lorient Variant:

Lorient Vision proof flanged grille suitable for surface mounting onto doors, wall or partitions.

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Application

Cover grille for selected air transfer grilles, surface-mountable onto doors, walls or partitions. Especially useful for narrow doors or fireblock installations.

Not recommended for use on exterior walls* or areas with high levels of moisture.

*Weather louvre alternatives available.

Description

Range of vision-proof flanged grilles suitable for surface mounting onto doors, walls or partitions.

Particularly suited to narrow doors or fireblock installations.


Features and benefits:

  • Extruded aluminium 'V'-shape chevron blade mounted on a close 8 mm pitch renders see-through vision impossible.
  • Withstands harsh environments.
  • For use with air transfer grilles LVV40; LVH44; LVV40S; LVH44+LVH20S.
  • Free area: 45% (approx.)
  • Vanes are horizontal and allow bi-directional air flow.

General information

Color

Silver

Other

Manufacturer guidance

Product update: the satin silver finish has changed to RAL 9006 (05/1/23)

Finish

Powder-coated

Material

Aluminium

Shape

Square

Length

-

Manufacturer guidance

Cover Grilles can be supplied in a wide range of sizes to suit the intumescent dampers. Sizes from 100 x 100mm up to 1200 x 1200mm in either configuration offer great flexibility when selecting grille sizes. 


Each cover grille is manufactured to the nominal aperture size + 80mm. 

Width

-

Manufacturer guidance

  • Cover Grilles can be supplied in a wide range of sizes to suit the intumescent dampers. Sizes from 100 x 100mm up to 1200 x 1200mm in either configuration offer great flexibility when selecting grille sizes.
  • Each cover grille is manufactured to the nominal aperture size + 80mm. 

Height

-

Manufacturer guidance

  • Cover Grilles can be supplied in a wide range of sizes to suit the intumescent dampers. Sizes from 100 x 100mm up to 1200 x 1200mm in either configuration offer great flexibility when selecting grille sizes.
  • Each cover grille is manufactured to the nominal aperture size + 80mm. 


Uniclass

Pr_30_59_94_06 Air transfer grillesPrimary

CAWS

U90/360 Air transfer grilles

P21/66 Door mounted air transfer grilles

U90/360 Air transfer grilles

P21/895 Door mounted air transfer grilles

Specification data - Air transfer grilles

Configuration

-

Manufacturer guidance

For use with air transfer grilles LVV40; LVH44; LVV40S; LVH44+LVH20S.

Consult manufacturer for details.

Size

200 x 200 mm.

Guidance for specification option:

Air transfer grille (ATG) nominal size.

  • Cover grille overall size: 280 x 280 mm.
  • ATG actual size: 198 x 198 mm.

300 x 300 mm.

Guidance for specification option:

Air transfer grille (ATG) nominal size.

  • Cover grille overall size: 380 x 380 mm.
  • ATG actual size: 298 x 298 mm.

400 x 400 mm.

Guidance for specification option:

Air transfer grille (ATG) nominal size.

  • Cover grille overall size: 480 x 480 mm.
  • ATG actual size: 398 x 398 mm.

Manufacturer guidance

Depth: 29 mm.


Maximum aperture size:

  • Doors: nominal ATG size + 5 mm;
  • Walls: nominal ATG size + 10 mm.

Equivalent area (minimum)

45%.

Material and finish

Aluminium, powder coated.

Colour

White.

Silver.

Other.

Guidance for specification option:

Non-standard; consult manufacturer for details and insert requirements.

Sustainability data

Country of product manufacture

United Kingdom

Literature

Lorient Air Transfer Grille Product Selector

Lorient Air Transfer Grille Product Selector

Air Transfer Grille Installation Manual

Air Transfer Grille Installation Manual

Aluminium cover grille NV6 datasheet

Aluminium cover grille NV6 datasheet

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