Fire Damper, Curtain Type (UL 555) Standard Construction Details
| Fire Rating |
1 ½ Hours & 3 Hours |
| Blade |
22 Gauge Roll Formed galvanized steel interlocking blades
|
| Frame |
18 Gauge Gauge galvanized steel
|
| Blade Ramp |
16 Gauge galvanized steel
|
| Fusible Link |
74 Deg.C (165 Deg.F)
|
| Spring |
Stainless Steel Spring
|
| Minimum Size |
8” x 8”
|
| Maximum Single Section |
36” x 36”
|
| Mounting |
Vertical / Horizontal
|
| Limit Switch/Micro switch |
Optional
|
| Blade Position |
Blades Above Air Stream & Blades in Air Stream
|
| Damper Sleeves |
Sleeves will be as per NFPA-90 A Standard
|
Finish |
Mill Finish
|