Applied norm

1.Design and manufacture: API 602

2.Ends connection

1) SW dimension: ANIS B16.11; JB/T1751

2)Screwed dimension: ANSI B1.20.1; JB/T73.6

3)BW dimension: ANSI B16.25; JB/T 12224

4)Flange dimension: ANSI B16.5; JB79

3.Structural feature: Bolt bonnet(BB)and outside screwed and yoke(OS&Y), or welded bonnet(W.B)and outside screwed and yoke

4.Valve inspection and test: API598;gb/T 13927; JB/T9092

5.Body material :A105; LF2; F11; F22; F304; F316; F321; F51; monel;20#alloy;