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Environment, Health, Safety & Security

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Close gas lines when the temperature gets too high

| By Chemical Engineering

FireBag thermo-activated shut-off devices turn off gas supply when ambient temperatures reach 212°F, preventing the spread of fire that can lead to gas explosions. The FireBag will meet the temperature and leakage requirements of ANSI/API 607 for natural gas, propane and butane. When the outside temperature reaches 203–212°F, metal alloy in the FireBag that keeps plug and cartridge together melts, and the spring pressure pushes against the gas opening to close it completely. Once triggered, the shutoff device works up to 1,697°F for one hour. No fire or heat detectors are required. — Assured Automation, Clark, N.J.

Scott Jenkins