| 摘要 |
This invention is directed to an auto shut off device which includes a restrictive flow orifice (RFO) disc designed to restrict and isolate gas flow. The RFO disc is designed to flex in response to a specific pressure drop that develops as a result of a system failure. When the failure occurs, the RFO disc flexes into a sealed position which blocks the discharge flow path. In this way, the RFO disc functions as an auto shut off device that confines the gas upstream of the disc.
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