Aluminium slats with an intumescent core are set into a welded and plated steel frame incorporating a 2 mm thermal break to minimise heat conduction. At a temperature of 140°-150° Celsius the intumescent core swells to many times the original thickness. The louvres fuse together to form a non-combustible barrier. In effect the grilles act as a static fire barrier. The grille must be fixed with fasteners and/or intumescent mastic. Free-air space approx. 80%.
Application
These grilles allow free movement of air through ducts and fire rated constructions. They can be used outside or in industrial environments, but must be protected with a fixed louvred ventilator or a louvred grille.
Standard
- thickness 44 mm.
- clean airflow characteristics.
- water and shock resistant.
- horizontal and vertical use.
- 120 min. fire resistant, EN1634-1.
- fitting instructions.
Options
Technical details
| Article number | : | G8HPR-400 |
| Specification | : | steel frame |
| Build in | : | 398 mm |
| EAN code | : | 8713628010789 |
| Box Qty | : | 1 |
| LD cm2 | : | 1155 |
| Pressure drop | 1 Pa | 2 Pa | 5 Pa | 10 Pa | 20 Pa | 40 Pa | 60 Pa |
| dm3/s | 96 | 136 | 215 | 305 | 431 | 609 | 746 |
| m3/u | 346 | 490 | 774 | 1098 | 1552 | 2192 | 2686 |
|
