自密封闸阀

1、设计制造:
API 602、 BS5352、ANSIB16.34;
2、连接端尺寸:
1)承插口尺寸按Socket welded dimension conform
to ANSI B16.11;JB/T1751
2)螺纹端尺寸按Screw ends dimension conform to
ANSI B1.20.1;JB/T7306
3)对焊端尺寸按Butt-welded conform to ANSl B16.25;
JB/T12224
4)法兰端尺寸按Flanged ends conform to ANSI B16.5;JB79
3、阀门检查和试验:
API 598; GB/T13927; JB/T9092
4、结构特征:
A threaded and pressure seal bonnet
5、材料按Materials conform to ANSI/ASTM的规定.