LVV40 Intumescent Air Transfer Grille

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.

Test evidence:

Fire: BS 476-20 and 22:1987. Fire: BS EN 1634-1:2014. Fire: BS EN 1364-5:2017.

Performance:

Can be used to provide up to 60 minutes resistance to fire. EI rating of 120 minutes when used in conjunction with a cover grille. Consult the manufacturer's Technical Department for details.

Orientation:

Suitable for use in vertical applications.

Positional requirements (Certifre):

  • 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 our Technical Department for further information.

Features and benefits:

  • Fits directly into ducts, doors or wall apertures.
  • No moving parts.
  • Excellent fire integrity + 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).

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.

General information

Finish

Silver as standard

Material

Polyvinyl chloride (PVC) slats with an intumescent core

Uniclass 2015

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

Product Reference

LVV40 Intumescent Air Transfer Grille

Standard product features

Thickness:

40 mm.

Finish:

Silver as standard.

Free area:

  • 60% free area (approximately).
  • Low sound power level +.

Material

Polyvinyl chloride (PVC) slats with an intumescent core.

Fixing

  • Each air transfer grille is manufactured 2mm 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 198mm x 198mm nominal size air transfer grille will suit a 200mm x 200mm aperture. Screwed and bedded in Lorient intumescent sealant.
  • Note: fitting is determined by application. Please refer to separate fitting instructions.

Product Options

Size (w x h):

100-600 mm (in 25 mm increments).

Literature

Specialised Fire Resistant Door Hardware

Specialised Fire Resistant Door Hardware

Third party certifications

  • CF564

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