At what temperature will a fusible plug typically melt?

A fusible plug is a safety device used in boilers to prevent overheating and potential explosions. It is designed to melt at a specific temperature, allowing steam or pressure to escape when the water level drops too low, effectively reducing the risk of catastrophic failure.

The correct melting temperature range for fusible plugs is typically between 445 to 450 degrees Fahrenheit. This range ensures that the plug will activate before temperatures reach potentially dangerous hotspots within the boiler where the risk of boiler failure dramatically increases.

Using a defined melting range enables operators to maintain safe boiler operations, as the fusible plug will only allow release when the situation becomes hazardous due to excessive temperature, providing a crucial safety measure in boiler design and operation.