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单词 pressure relief valve
释义
pressure relief valve

Chemical Engineering
  • A valve used on a process vessel or pipe designed to operate as a safety device and activate to discharge the pressurized gas or liquid whenever it has reached a set point pressure. The valve will automatically close again once the pressure has fallen below the set point. In comparison, a pressure safety valve (PSV) has a level that can be manually activated in the event of an emergency.


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