| 摘要 |
A leak monitoring and emergency venting apparatus for a double-walled tank includes a pipe for connecting a space between the walls of the tank to the atmosphere, a plug releasably closing an outer end of the pipe, and a pressure gauge in the plug in fluid communication with the interior of the pipe for monitoring the fluid pressure between the walls of the tank. If the pressure in the space between the walls of the tank rises above a predetermined level, the plug and gauge are discharged from the pipe allowing venting of the space to the atmosphere.
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