Carbon Steel Gate Valve Application standards: 1. Design and manufacture conform to: API 602; 2. Connection ends conform to: 1)Socket welded dimension conform to ANSI B 16.11 2) Screw thread dimension conform to ANSI B 1.20.1 3. Test and inspection conform to: API 598 4. Structure features: B. B OS&Y 5. Materials conform to: ANSI/ASTM 6. Main materials: A105; F5; F9; F11; F22; F91; F304; F304L; F316; F316L; F321; LF2 etc Contact us if you need more details on Forged Gate Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about API Gate Valve、Cast Steel Gate Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.