Fire smoke exhaust valve
- product brand:RONGSHI
- Numéro de stand：待分配B4J06
- product specification:120*120-2000*2000
- product category:Ventilation Plants-Fire protection flaps (vents) and accessories-
- product introduction:The fire damper is a normally closed valve, which is opened by the control center through 24VDC or manually, and automatically closed at 280 ℃, and must be manually reset. Its function is: when the flue gas temperature reaches 280 ℃, the evacuation of people has been basically completed, and the smoke has no practical significance, and the smoke has a fire at this time, and the valve is automatically closed to avoid the spread of the fire. The smoke vent of the system can also be a normally closed fire vent, and the smoke fire damper on the branch pipe can be cancelled. In case of fire, the air vent shall be opened by the control center through 24VDC or manually. When the smoke temperature reaches 280 ℃, it shall be closed automatically and reset manually. Smoke exhaust fire damper shall also be installed at the entrance of smoke exhaust fan room to prevent fire spreading to the floor where the fan room is located.
