At what temperature do fusible plugs melt?

Fusible plugs are designed to provide a safety mechanism in water systems, particularly in pressure vessels and boilers. These plugs are made from a metal alloy that melts at a specific temperature. When the temperature exceeds this threshold, the plug melts, allowing pressurized steam or hot water to escape, thereby preventing potential explosions or ruptures due to overpressure.

The melting point of fusible plugs is typically around 160 degrees Fahrenheit. This specific temperature is chosen because it effectively balances sufficient operational safety with the mechanical requirements of the system. If the system operates at too high a temperature, the fusible plug will activate, ensuring that pressure is relieved safely and preventing catastrophic failures.

Understanding the correct melting point of fusible plugs is crucial for operators to ensure proper functioning and safety in water systems. Knowledge about the characteristics and operational limits of fusible plugs allows operators to maintain the integrity of the system and mitigate risks associated with overheating.