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The commonly used ones are 70 °, 150 °, and 280 °, which are installed on pipelines with corresponding functions and are usually in a normally open state. When the temperature reaches the corresponding temperature, the valve closes, playing a role in smoke and fire prevention.
The commonly used ones are 70 °, 150 °, and 280 °, which are installed on pipelines with corresponding functions and are usually in a normally open state. When the temperature reaches the corresponding temperature, the valve closes, playing a role in smoke and fire prevention.

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