Appplication standard
1.Design manufacture:API602
2.Connect the size of end:
1)Bear the socket size and ppress ANSI B16.11;JB/T1751
2)Thread end size and press ANS B1.20.1;JB/T12224
3)But welding end size according to ANSI B1.16.25;JB/T12224
4)Flange end size according to ANSI B1.16.5;JB/T12224
3.Valve inspection and experiment:
API598;GB/T13927;JB/T9092