| 摘要 |
A safety device for an apparatus under pressure, such as a vessel under gas pressure, includes a housing having an overflow channel in fluid communication with the interior of the apparatus, and an outlet port. Received in the housing is a thermal trigger unit which has a rupture element intended to burst when a critical temperature level is exceeded. The rupture element interacts with a closure member which is moveable from a ready position, in which the closure member is so loaded by the rupture element as to seal the overflow channel and thereby cut a fluid communication between the overflow channel and the outlet port, to a release position, in which the overflow channel is cleared for fluid communication with the outlet port as a result of a bursting of the rupture element. |
