Application

Suitable for external applications, doors, walls and ducts.

Description

A high performance, standard vision intumescent air transfer grille for walls, doors and ventilation ducts. Can provide 120 minutes fire resistance.

Features and benefits:

  • Exhibits excellent airflow characteristics + gives silent efficient operation with normal to high air velocities.
  • Fits directly into ducts, doors or wall apertures.
  • Good free area up to 60%.
  • Tolerant of high humidity.
  • Withstands harsh environments.
  • Not prone to clogging.
  • No moving parts.
  • Robust construction.
  • Available in a multitude of sizes.
  • No maintenance.
  • Use with metal cover grille (optional).
  • Other non-standard sizes may be available - consult the manufacturer for details.

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 120 minutes resistance to fire. EI rating of 120 minutes when used in conjunction with a cover grille.

Orientation:

LVHC44 air transfer grilles can be installed in any orientation.

Positional requirements:

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 200 mm to floor level.

Application:

Suitable for external applications, doors, walls and ducts.

General information

Size

See 'Options' below and insert requirements.

Finish

Silver as standard

Material

Z275 galvanized steel. Metal 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

U90/360 Air transfer grilles

U90/360 Air transfer grilles

Specification data - Fire-resisting air transfer grilles

Product Reference

LVHC44 Air Transfer Grille

Size

See 'Options' below and insert requirements.

Accessories

None

Cover grille

Standard product features

Thickness:

44 mm.

Free area:

60% free area (approximately).

Material

Z275 galvanized steel. Metal slats with an intumescent core.

Finish:

Silver as standard.

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 mm diameter nominal size air transfer grille will suit a 200 mm diameter aperture. Screwed and bedded in Lorient intumescent sealant.

Product Options

Size:

Up to 600 mm diameter (nominal to suit standard PVC pipes or steel ducts).

Literature

Specialised Fire Resistant Door Hardware

Specialised Fire Resistant Door Hardware

Third party certifications

  • CF564

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