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No. 568 Tianyi Road, Qingpu District, Shanghai, China
Tel: 86-021-69216232
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Fire Damper
Model: FDS
Category: Automatic/Industrial Machines & Equipments / Industrial Machines / Others
Characteristics
Fire dampers are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent the spread of fire inside the ductwork through fire-resistance rated walls and floors. When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to close the damper blades. Fire dampers can also close following receipt of an electrical signal from a fire alarm system utilizing detectors remote from the damper, indicating the sensing of heat or smoke in the building occupied spaces or in the HVAC duct system.
Specifications
1) Normally open. When the airflow temperature reaches 70J, the fuse drives the valve close automatically.
2) Close the valve through DC24V.
3) Manual opening or reset.
4) Reset the valve to open condition through DC24V after closing the valve.
5) Manually adjusting the opening angel of the blade within 0-90°.
6) Output close signal of the valve, can interlock with other devices.
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