Smoke Extraction Fire Proof Damper
Introduction: The is normally closed, when on fire, smoke sensors output electricity signal (DC 24V) through control center, and the electromagnet in the actuator acts, damper is automatically opened and start smoke extraction fan to extract smoke out, outputs the open electric signal. When the temperature getting up to 280℃, the fuse will act and the damper automatically close. The damper can be manually open. After the damper acting, it
Introduction:
The smoke extraction fire proof damper is normally closed, when on fire, smoke sensors output electricity signal (DC 24V) through control center, and the electromagnet in the actuator acts, damper is automatically opened and start smoke extraction fan to extract smoke out, outputs the open electric signal. When the temperature getting up to 280℃, the fuse will act and the damper automatically close. The damper can be manually open. After the damper acting, it need reset it by manual.
Technical Specifications:
| Product | Smoke extraction fire proof damper |
| Material | Galvanized steel sheet |
| Major component | Damper body, damper blade, shaft, bushing, fuse, inspection door, actuator |
| Size | Can be customized as request. |
| Fuse operated temperature | 280℃ |
| Fire resistance rating | 1.5 h |
| Control voltage | DC 24V |
| Action current | 0.3A |
| Micro switch contacts capacity | AC380V 3A |
| Air leakage | <500m3/ m2‧ h |
| Resistance coefficient fully open | <0.5 |
Recommended Products
