Design Structure and Features: A. Design and Manufacturing: As per ANSIB16.34; AP1602; BS 5352 B. Dimensions of connection ends and face-to-face: As per ANST B16, 10 ANSI B16,5 JB97-95 JB82-95 C. Valve Inspection and Test: as per API 598 D. Material: According to AISI/ASTM specifications E. Body material:A105;F5;F11;F22;304;304L;306;306L;LF2..... F. Markings as per MSS-SP-25