| 摘要 |
<p>A pressure relief valve (150') for a gas-containing vessel (270') includes a thermal trigger (158') which engages a hollow seal plug (154') to retain a frangible disk (191') against a radial shoulder (224') of a flow passage (232') so as to seal the flow passage. Excessive pressures within the vessel (270') cause the frangible disk (191') to rupture, thereby exposing the flow passage (232') to allow the gas to escape. Additionally, the thermal trigger (158') releases the seal plug (154') to expose the flow passage (232') when an ambient temperature reaches a predetermined temperature threshold.</p> |
