阀门耐火试验简介
API 607和API 6FA是针对阀门6D和6A的耐火试验，一般只能旋转90°的6D阀门需要做API 607，而其他需要做API 6FA。
API耐火试验标准
•API Fire Test for Valves and Valves E with Nonmetallic seats.
转1/4周阀门和非金属阀座阀门的耐火实验
•API 6FA-1993（R2011）Specification for Fire Test for Valves.
阀门耐火实验规范
API 6FD-2008 Specification for Fire Test for Check Valves.
止回阀耐火实验规范