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-250 |
| Specification | : | steel frame |
| Build in | : | 248 mm |
| EAN code | : | 8713628215344 |
| Box Qty | : | 1 |
| Weight gramm | : | 680 |
| LD cm2 | : | 370 |
| Pressure drop | 1 Pa | 2 Pa | 5 Pa | 10 Pa | 20 Pa | 40 Pa | 60 Pa |
| dm3/s | 31 | 44 | 69 | 97 | 138 | 195 | 239 |
| m3/u | 112 | 158 | 248 | 349 | 497 | 702 | 860 |
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