Size:1/4"-2" Pressure:150LB-600LB(PN16-PN100) Design and Manufacture: According to Standard:ANSI, B16.34,API600,API602. Connection Length:According to ANSI B16.10. Size of the Junction End: According to ANSI B16.25(B.W). Testing of Valves:According to API 598. Structure Characteristics:B.B; OS&Y Main Materials A105;F5;F11;F22;304;304L;316;316L;LF2 etc.