Background Ventilation (via Ventilation flap)
Sizes : | at 4Pa : | at 8Pa : | at 10Pa : | at 20Pa : |
FFKF06
| 9.6 l/s
| 13.8 l/s
| 15.6 l/s
| 22.6 l/s
|
FFKF08
| 9.6 l/s
| 13.8 l/s
| 15.6 l/s
| 22.6 l/s
|
Sizes :
| Equivalent Area : mm²
| Geometrical Free Area : mm²
|
FFKF06
| 6200
| 7400
|
FFKF08
| 6200
| 7400
|
Finishes:
Internal -
Laminated pinewood finished with triple coat in one variation:
- Variation 1 - White-painted finished with triple coat, (NCS standard colour: S 0500-N, nearest RAL standard colour: 9003)
External -
Maintenance-free cover parts in two variations:
- Variation 1 - Aluminium dark grey (NCS standard colour: S 7500-N, nearest RAL standard colour 7043).
- Variation 2 - Untreated Copper