Feature

1.Design and manufacture: ASME/ANSI B16.34;AP 600; GB/T12224;GB/T12228;GB/T12235
2.Ends connection
1)SW dimension:ASME/ANSI B16.11;JB/T1751
2)Screwed dimension:ASME/ANSI B1.20.1(NPT); GB/T7306-87 (RC)
3.Structural feature:WC.piston lifting type with spring-“Y” type.
4.Sealling accessory material:according to “ordering guide”.
5.Body material:A105;LF2;F5;F11;F22; F304;F316;F304L;F316L
6.Valve inspection and test according to API 598 or GB/T 13927