技术要求 Technical Requirement
1、阀门的设计与制造按API609的规定。
Design and manufacture of valves as per Spec. API 609
2、阀门的结构长度按API 609的规定。
Face-to-Face dimensions of valves per API 609
3、法兰连接尺寸按ANSI B 16.5的规定。
Connection sizes of flanges to ANSI B 16.5
4、阀门的检查和试验按API598的规定。
Inspection and test as per Spec. API 598
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