Core functional features and applications of fuse valves and thermal cut-off valves

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The core functional features and applications of fuse valves and thermal cut-off valves are as follows: Core functions and features 1. Automatic shutdown mechanism: It remains open at normal temperatures; when the ambient temperature reaches the set melting point (such as 74°C–182°C), the fusible alloy element melts, and the valve closes automatically under the action of a spring or gravity, thereby stopping the flow of flammable substances. 2. Structural design: The basket-type valve body serves as the actuator, with a fuse element and spring assembly built into it ； The red handwheel can be used for manual testing or resetting; the top metal frame serves as a fixed structure, and the entire unit is suitable for installation in pipeline systems. 3. No power drive required – no electricity or external control is needed; it operates via pure mechanical temperature sensing, making it suitable for emergency situations where power supply is lost in case of a fire, thus ensuring reliability. Applications and maintenance of fuse valves and thermal cut-off valves: Typical scenarios include oil depots, chemical storage tanks, gas pipelines, and other flammable and explosive environments, where they serve as critical safety devices to prevent the leakage of fluids in the early stages of a fire. Maintenance tips: After turning it off, the fuse element needs to be replaced and the device must be manually reset. It is recommended to conduct regular tests (at least 3 times per year) to ensure accurate detection of the fuse melting temperature. Core value: Through its passive temperature-responsive design, the fuse valve can quickly shut off hazardous fluids in emergency situations, making it an important protective device for ensuring the safety of industrial piping systems.