Verified by manufacturer 5 months ago
Non-vision style air transfer grille
Suitable for doors. In applications where high levels of humidity or wetness are anticipated, it is recommended that an LVH44 product should be employed.
A non-vision intumescent air transfer grille. Supplied in two pieces it lends itself to easy installation in a standard 44 mm-thick fire door and when finished with a colour coordinated edge flange, results in an attractive but efficient air transfer feature. Use with integral steel or aluminium flanges. No cover grille required.
Features and benefits:
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 x 198 mm nominal size air transfer grille will suit a 200 x 200 mm aperture. Screwed and bedded in Lorient intumescent sealant.
Color | Silver |
Finish | Smooth |
Material | Polyvinyl chloride (PVC) Intumescent |
Shape | Square Rectangle |
Length | Manufacturer guidanceThickness: 2 pieces x 20mm |
Width | Manufacturer guidance100mm - 600mm (in 50mm increments). |
Height | Manufacturer guidance100mm - 600mm (in 50mm increments). |
Uniclass | |
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 |
Standard | To BS 476-20 and 22:1987. |
Third party certification | Certifire CF 546. |
Category | Intumescent. |
Size | Manufacturer guidanceInsert requirements, width and height available 100–600 mm (in 50 mm increments). |
Fire resistance (minimum) | 30 minutes. |
Material and finish | Rigid PVC slats with an intumescent core. |
Colour | Silver. |
Free area | 30% free area (approximately). |
Thickness | 20 mm (two pieces). |
Country of product manufacture | United Kingdom |