Compare

LVH44 Intumescent Air Transfer Grille

Name: LVH44 Intumescent Air Transfer Grille
Brand: Lorient
SKU: 32KFUu7qZzeHrAHKj6AUoM

Verified by manufacturer 5 months ago

Lorient

Third party certifications:

Certifire Certificate
Certificate type

A high performance, standard vision intumescent air transfer grille for walls, doors, floors and ventilation ducts. The LVH44 can be assembled in multi-modules to protect large apertures.

Jump to:

+44 (0)1626 834252 Website

Application

Suitable for walls, doors, floors and ventilation ducts.

Suitable for external applications.

Description

A high performance, standard vision intumescent air transfer grille for walls, doors and ventilation ducts. The LVH44 dampers can be assembled in multi-modules to protect large apertures. Can provide up to 180 minutes fire resistance.

Features and benefits:

Exhibits excellent airflow characteristics and gives silent efficient operation with normal to high air velocities.
Fits directly into ducts, doors or wall apertures.
Good free area up to 65%.
Tolerant of high humidity.
Withstands harsh environments.
Not prone to clogging.
No moving parts.
Robust construction

Positional requirements (Certifire):

The upper edge of the grille shall be no higher than 3000 mm from floor level.

Test evidence:

Fire: BS 476-20 and 22:1987.
Fire: BS EN 1634-1:2014.
Fire: BS EN 1364-5:2017.
The lower edge of the grille shall be no closer than 200 mm to floor level.

Performance:

Can be used to provide up to 120 minutes resistance to fire to BS 476.
EI rating of 120 minutes when used in conjunction with a cover grille.

General information

Color	Silver
Material	Steel Guidance for specification option: Z275 galvanized steel. Metal slats with an intumescent core.
Shape	Square
Width	100 mm 125 mm 150 mm 175 mm 200 mm 225 mm 250 mm 275 mm 300 mm 325 mm 350 mm 375 mm 400 mm 425 mm 450 mm 475 mm 500 mm 525 mm 550 mm 575 mm 600 mm Show more
Height	100 mm 125 mm 150 mm 175 mm 200 mm 225 mm 250 mm 275 mm 300 mm 325 mm 350 mm 375 mm 400 mm 425 mm 450 mm 475 mm 500 mm 525 mm 550 mm 575 mm 600 mm Show more

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	Fire: BS 476-20 & 22:1987; BS EN 1634-1:2014; BS EN 1364-5:2017; NEN 6069:2005+A1:2016.
Third party certification	Certifire CF564.
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 Grilles are available in a range of widths and heights from 100–600 mm (in 25 mm increments). Larger sizes can be produced dependent upon application - please refer to Lorient's Technical Department. Circular grilles are available in diameters up to 600 mm.
Fire resistance (minimum)	FD30. FD60. FD120. FR120. EI90.
Material and finish	Z275 galvanized steel with metal slats .
Colour	Silver.