A fusible link valve with a lever operator is a type of safety valve designed to automatically shut off the flow of fluid or gas in the event of a fire or high temperature condition. It combines the features of a fusible link with a lever-operated valve mechanism.
The fusible link is a heat-sensitive device that melts or breaks at a specific temperature. In a fusible link valve, the link is connected to the lever operator, which controls the opening and closing of the valve. When the ambient temperature reaches the predetermined threshold, the fusible link melts or breaks, triggering the lever to close the valve and stop the flow.
The lever operator provides manual control as well, allowing the valve to be manually operated under normal conditions. This can be useful for regular maintenance, testing, or emergency shutdowns unrelated to fire or high temperature incidents.
Fusible link valves with a lever operator are commonly used in fire protection systems, where they act as an added safety measure. They are often installed in areas where flammable or hazardous materials are present, such as industrial facilities, storage tanks, or fuel distribution systems. In the event of a fire, the fusible link valve helps prevent the spread of flames or the release of dangerous substances by automatically isolating the affected section of the system.
