Current label: Fire damper price
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The fire damper is installed on the supply and return air pipelines of the ventilation and air conditioning systems. It is usually open. In case of a fire, when the gas temperature in the pipeline reaches 70 ℃, the fusible link will fuse, and the valve will automatically close under the action of the torsion spring force, which can meet the requirements of fire resistance stability and integrity within a certain period of time, and plays the role of smoke and fire isolation. When the valve is closed, the closing signal is output. Smoke and fire control