Fire and Smoke Dampers: Fire damper heat activated spring

Fire and Smoke Dampers

Ventilation, air conditioning, heating ducts and specify the path of fire and smoke, which can travel throughout the building. The common types of blinds that are often installed in these ducts depend on gravity-close action or spring-and-level mechanisms. When their releases are activated, they will be released to a drop in the ducting.

Fire and Smoke Dampers

Afusible link attachment individual registers also helps to control the fire and smoke. Fig. 17-12 shows fusible - link-type of register. The link is available from the point of melting 160F (71.1C) or 212F (100C). When the link melts, it releases the spring, which makes flap fully closed position. The attachment does not prevent damper operation.

Smoke dampers for high-rise buildings

Fire and smoke safety concepts in high-rise buildings are paying more attention to the issues of safety of shelters for personnel on each floor. This provision is to optimize the air flow or fire floor or adjacent floors. Such systems require a computer-operated smoke dampers. Shock absorbers are located in input and output channels that are reliable. They must be hermetically closed, and offer minimum hydraulic resistance when fully open.

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