forged steel bellow sealed Valve

forged steel bellow sealed Valve(forged steel cryogenic valve, Y type chek valve) Application specification1.Design and manufacture conform to API 602 BS5352 ANSI B 16.342.Connection ends conform to1)Scoket welded ends conform to ANSI B16.11;JB/T17512)Screw ends conform to ANSI B 1.20.1;JB/T73063)Butt-welded ends conform to ANSI B 16.5;JB/T12224;4)Flange ends conform to ANSI B 16.5;JB793.Test and inspection conform to API 598;GB/T13927;JB/T90924.structure features:Bolted bonnet,outside srew and yoke;wekded bonnet, outside screw and yoke5.Materials conform to ANSI/ASTM6.Main materials:KF2;LF3;304(L);316(L);F347;F321;F51.