A Pressure Relief Valve is a safety device designed to control or limit the pressure in a system. It automatically opens to release excess pressure when it exceeds a predetermined level, preventing potential damage or failure of equipment. This is crucial in various applications, including boilers, piping systems, and pressure vessels. These valves are essential in maintaining safe operating conditions. By allowing excess pressure to escape, they help protect both the equipment and personnel from hazardous situations. Regular maintenance and testing of pressure relief valves are important to ensure their reliability and effectiveness in emergency scenarios.