Application

Suitable for doors of minimum 50 mm thickness. Note: in applications where high levels of humidity or wetness are anticipated, it is recommended that a LVH44 product should be employed.

Description

The LVN25 is a non-vision intumescent air transfer grille supplied in two halves to accommodate door thicknesses up to 50 mm. When finished with a colour co-ordinated edge flange, it results in an attractive but efficient air transfer feature.

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.
  • Integral steel or aluminium flanges.
  • Integral steel or aluminium flanges.
  • Other non-standard sizes may be available - consult the manufacturer for details.

Test evidence:

Fire: BS 476-20 and 22:1987.

Performance:

Can be used to provide up to 60 minutes resistance to fire.

Orientation:

LVN25 is best suited in the vertical plane.

Positional requirements:

The upper edge of the grille shall be no higher than 800 mm from floor level.

Application:

Suitable for doors of minimum 50 mm thickness. Note: in applications where high levels of humidity or wetness are anticipated, it is recommended that a LVH44 product should be employed.

General information

Size

See 'Options' below and insert requirements.

Finish

Silver as standard

Material

Rigid polyvinyl chloride (PVC) slats with an intumescent core

Uniclass 2015

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

Specification data - Fire-resisting air transfer grilles

Product Reference

LVN25 Air Transfer Grille

Size

See 'Options' below and insert requirements.

Standard product features

Thickness:

Two pieces x 25 mm.

Free area:

30% free area (approximately).

Material

Rigid polyvinyl chloride (PVC) slats with an intumescent core.

Finish:

Silver as standard.

Fixing

Rigid polyvinyl chloride (PVC) slats with an intumescent core.

Product Options

Size (w x h):

100–600 mm (in 50 mm increments).

Literature

Specialised Fire Resistant Door Hardware

Specialised Fire Resistant Door Hardware

Third party certifications

  • CF564

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