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Detailed working principle of flue check valve

Release Date: January 02, 2016

Detailed working principle of flue check valve

Check valve
The flue check valve belongs to an automatic fireproof valve. The integral metal member is made of metal material, and it also has the functions of fire prevention, smoke backflow prevention, and airflow upward. A valve that is mainly used in residential kitchens and bathrooms for centralized exhaust fume exhaust, which plays the functions of exhausting smoke, preventing back smoke, and preventing fire. Working principle When the high temperature in the pipeline reaches 150 ° (the high temperature in the pipeline reaches 150 °, the default is an open flame in the flue), the temperature control element on the back of the valve body acts to trigger the close switch. The valve disc is forced to close the valve under the action of spring rebound to prevent the fire from spreading into the room through the exhaust gas port. The flue check valve is automatically opened and closed by the power generated by the flow of the medium in the pipeline, and belongs to an automatic valve. The flue check valve is used in the pipeline system, and its main function is to prevent the medium from flowing backward, and it can be applied to the pipeline of various media.