1、設(shè)計(jì)制造Design and manufacture conform to API 602 BS5352 ANSI B16.34
2、連接端尺寸Connection ends conform to:
1)承插口尺寸按Scoket welded ends conform to ANSI B16.11;JB/T1751
2)螺紋端尺寸按Screw ends conform to ANSI B1.20.1,JB/T7306
3)對(duì)焊端尺寸按Butt-welded ends conform to ANSl B16.25;JB/T12224
4)法蘭端尺寸按Flanged ends conform to ANSI B16.5;JB79
3、檢查和試驗(yàn)Test and inspection conform to:
API 598;GB/T13927;JB/T9092