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LVN20 Intumescent Air Transfer Grille - Non-vision

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Lorient

Non-vision style air transfer grille

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Application

Suitable for doors. In applications where high levels of humidity or wetness are anticipated, it is recommended that an LVH44 product should be employed.

Description

A non-vision intumescent air transfer grille. Supplied in two pieces it lends itself to easy installation in a standard 44 mm-thick fire door and when finished with a colour coordinated edge flange, results in an attractive but efficient air transfer feature. Use with integral steel or aluminium flanges. No cover grille required.


Features and benefits:

  • Louvred slats give privacy
  • Bi-directional airflow
  • No site testing necessary
  • No moving parts
  • Attractive facade on both sides
  • Colour match available
  • Easy to keep clean.
  • Each air transfer grille is manufactured 2 mm less than a nominal aperture size to provide clearance when installed in a duct or other aperture of the same nominal dimensions. e.g. a 198 x 198 mm nominal size air transfer grille will suit a 200 x 200 mm aperture. Screwed and bedded in Lorient intumescent sealant.
  • The upper edge of the grille shall be no higher than 800 mm from floor level.
  • LVN20 is best suited in the vertical plane.


Fixing:

Each air transfer grille is manufactured 2 mm less than a nominal aperture size to provide clearance when installed in a duct or other aperture of the same nominal dimensions. e.g. a 198 x 198 mm nominal size air transfer grille will suit a 200 x 200 mm aperture. Screwed and bedded in Lorient intumescent sealant.

General information

Color

Silver

Finish

Smooth

Material

Polyvinyl chloride (PVC)

Intumescent

Shape

Square

Rectangle

Length

-

Manufacturer guidance

Thickness: 2 pieces x 20mm

Width

-

Manufacturer guidance

100mm - 600mm (in 50mm increments). 

Height

-

Manufacturer guidance

100mm - 600mm (in 50mm increments). 

Uniclass

Pr_30_59_94_31 Fire-resisting air transfer grillesPrimary

CAWS

L20/20 Wood flush doors

L20/230 Wood flush doors

L20/25 Wood panelled doors

L20/250 Wood panelled doors

L20/270 Wood doors

L20/280 Doors

L20/30 Wood doors

L20/410 Wood doorsets

L20/420 Wood doorsets

L20/430 Wood doorsets

L20/480 Doorsets

L20/55 Doorsets

P21/66 Door mounted air transfer grilles

P21/896 Door mounted fire resisting air transfer grilles

P21/897 Door mounted fire resisting air transfer grilles with smoke shutter

U90/360 Air transfer grilles

U90/360 Air transfer grilles

Specification data - Fire-resisting air transfer grilles

Standard

To BS 476-20 and 22:1987.

Third party certification

Certifire CF 546.

Category

Intumescent.

Size

-

Manufacturer guidance

Insert requirements, width and height available 100–600 mm (in 50 mm increments).

Fire resistance (minimum)

30 minutes.

Material and finish

Rigid PVC slats with an intumescent core.

Colour

Silver.

Free area

30% free area (approximately).

Thickness

20 mm (two pieces).

Sustainability data

Country of product manufacture

United Kingdom

Literature

Air Transfer Grille Installation Manual

Air Transfer Grille Installation Manual

Fire and Smoke Resistant Dampers / Air Transfer Grilles

Fire and Smoke Resistant Dampers / Air Transfer Grilles

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