At what temperature does a fusible plug typically melt?

The correct temperature range for the melting of a fusible plug is typically between 158 and 165 degrees Fahrenheit. Fusible plugs are heat-sensitive components designed to act as safety devices in boilers and other pressure vessels. Their primary function is to prevent overheating by melting and allowing the release of pressure or steam when the temperature exceeds a certain threshold.

The designated melting range of 158 to 165 degrees Fahrenheit ensures that the fusible plug becomes inactive just before the danger levels are reached, effectively preventing potential damage or hazards associated with overheating. This temperature range is engineered to balance the need for safety with operational efficiency, as it provides a timely reaction to excessive heat without being too sensitive to normal operational fluctuations. Hence, this specific range is commonly recognized in industry standards for safety devices in water distribution systems and similar applications.