弹簧安全阀由于具有结构紧凑,轻便灵敏,并能承受振动而不致漏汽等优点,已普遍地使用在锅炉压力容器上作为安全泄压装置。但对这种安全阀的选择、安装、使用或调整不当,会造成阀门故障,其中尤以阀门泄漏(即在设备正常工作压力下,阀瓣与阀座密封面间发生漏汽或冒汗现象)。最为常 Spring-loaded safety valves are commonly used as pressure relief devices in boilers and pressure vessels because of their compactness, light sensitivity, and ability to withstand vibration without leakage. However, this safety valve selection, installation, use or adjustment is not properly, will result in valve failure, especially in the valve leakage (that is, under normal working pressure equipment, the valve flap and seat sealing surface leakage or sweating phenomenon ). The most common