三片式锻钢球阀

1、设计制造Design and manufacture conform to BS5351 MSS SP-118;
2、连接端尺寸Connection ends conform to:
1)承插口尺寸按Scoket welded ends conform to ANSI B16.11;JB/T1751
2)螺纹端尺寸按Screw ends conform to ANSI B1.20.1;JB/T7306
3)对焊端尺寸按Butt-welded ends conform to ANSI B16.25;JB/T12224
4)法兰端尺寸按Flanged ends conform to ANSI B16.5;JB79
3、阀门检查和试验Test and inspection conform to:
API 598;GB/T13927;JB/T9092
4、结构特征Structure features:
螺栓连接阀盖;三段式 Bolted bonnet，three-piece;