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-300 |
| Specification | : | steel frame |
| Build in | : | 298 mm |
| EAN code | : | 8713628010642 |
| Box Qty | : | 1 |
| LD cm2 | : | 575 |
| Pressure drop | 1 Pa | 2 Pa | 5 Pa | 10 Pa | 20 Pa | 40 Pa | 60 Pa |
| dm3/s | 48 | 68 | 107 | 151 | 214 | 303 | 371 |
| m3/u | 173 | 245 | 385 | 544 | 770 | 1091 | 1336 |
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