TEMPERATURE ACTIVATED SHUT OFF MECHANISM

摘要

A temperature activated shut off mechanism for a valve is disclosed. The temperature activated shut off mechanism includes a plunger, a spring, a nut, a fusible block and a closing element. The spring configures a compressed and a de-compressed configuration. The closing element prevents flow of gas out of the temperature activated shut off mechanism in the de-compressed configuration of the spring. In a gas flow configuration of the temperature activated shut off mechanism, the spring is in compressed configuration between the inner surface of the valve and the nut and the gas flows out of the temperature activated shut off mechanism. In a gas blocking configuration, when temperature exceeds a predetermined limit then the fusible block melts causing the spring to form the de-compressed configuration and thereby activating the closing element to prevent flow of gas out of the temperature activated shut off mechanism.