The 1/4 Fusible Pipe Plug 283 Degree is designed to seal off a pipe or fitting, featuring a fusible metal core that will melt effectively venting the system in case of overheating or excessive pressure. This type of plug is commonly used in safety systems for applications like heating, refrigeration, or fire protection systems to protect from over-pressurization or thermal damage. When the temperature exceeds the melting point of the fusible material, the plug automatically opens, preventing catastrophic failures.