1.The standard of design and manufactire£ºGB12235-89
2.The standard of structure and length:GB12221-89
3.The standard of flange dimension:JB/T79-94
4.The inspection standard of valve:GB13297
Stop valve is a kind of common cut-off valve,mainly is used
to cut in or cut off the medium in pipeline,not to adjust the flux.
1¡¢Comparing with gate valve,this valve has these features of
simple structure,and convenient to manufacture and maintain.
2¡¢Has abrasion resistance seal surface,good seal and long life.
3¡¢small startup&shutting stroke of valve disc,short starting&shutting
time,low valve height.
Main techniqure parameter£º
Main spare parts material