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LVV40 Intumescent Air Transfer Grille

Verified by manufacturer 1 month ago

Lorient Third party certifications:
  • Certifire Certificate

    Certifire Certificate

    Certificate type

Vision style air transfer grille.

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Application

Suitable for doors, walls and ducts. Note: in applications where high levels of humidity or wetness are anticipated, it is recommended that a circular LVH44 product should be employed.

Description

A high performance, standard vision intumescent air transfer grille for doors, walls and ducts. To be used where air movement/ flow via fan is stopped in the event of a fire. Provides excellent airflow characteristics, which result in low sound power level and efficient operation in normal use. Can be used to provide resistance to fire and hot smoke of up to 60 minutes in doors and walls.


Features and benefits:

  • Fits directly into ducts, doors or wall apertures.
  • No moving parts.
  • Excellent fire integrity and insulation performance.
  • EI rating in conjunction with cover grilles.
  • Not prone to clogging.
  • No access panels required.
  • Robust construction.
  • No maintenance.
  • Use with metal cover grille (optional).
  • Suitable for use in vertical applications.
  • The upper edge of the grille shall be no higher than 3000 mm from floor level. The lower edge of the grille shall be no closer than 400 mm to floor level. Other positional requirements available, please speak to Lorient Technical Department for further information.
  • 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.
  • Fitting is determined by application - refer to separate fitting instructions.
  • Free Area: 60% free area (approximately). Low sound power level +.

General information

Color

Silver

Finish

Smooth

Material

Polyvinyl chloride (PVC)

Intumescent

Shape

Square

Length

-

Manufacturer guidance

Width: 100mm - 600mm (in 25mm increments).  

Height: 100mm - 600mm (in 25mm increments). 

Width

-

Manufacturer guidance

Thickness: 40mm.

Height

-

Manufacturer guidance

Width: 100mm - 600mm (in 25mm increments). 

Uniclass

Pr_30_59_94_31 Fire-resisting air transfer grillesPrimary

CAWS

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; To BS EN 1634-1:2014; BS EN 1364-5:2017.

Category

Intumescent.

Size

100 x 100 mm.

125 x 125 mm.

150 x 150 mm.

175 x 175 mm.

200 x 200 mm.

225 x 225 mm.

250 x 250 mm.

275 x 275 mm.

300 x 300 mm.

325 x 325 mm.

350 x 350 mm.

375 x 375 mm.

400 x 400 mm.

425 x 425 mm.

450 x 450 mm.

475 x 475 mm.

500 x 500 mm.

525 x 525 mm.

550 x 550 mm.

575 x 575 mm.

600 x 600 mm.

Manufacturer guidance

100-600 mm (in 25 mm increments).

Fire resistance (minimum)

60 minutes.

Guidance for specification option:

EI rating of 120 minutes when used in conjunction with a cover grille. Consult the manufacturer's Technical Department for details.

Material and finish

Polyvinyl chloride (PVC) slats with an intumescent core.

Colour

Silver.

Thickness

40 mm.

Sustainability data

Country of product manufacture

United Kingdom

Third party certifications

Certifire Certificate

Certifire Certificate

Certifire CF564

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

Lorient Air Transfer Grille Datasheets

Lorient Air Transfer Grille Datasheets

Lorient Air Transfer Grille Product Selector

Lorient Air Transfer Grille Product Selector

LVV40 into a timber fire door (door 1)

LVV40 into a timber fire door (door 1)

LVV40 into rigid wall (Wall 14)

LVV40 into rigid wall (Wall 14)

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