The valve disc wedge and valve seat seal are repeatedly treated by special processes, and protected by multiple seals, and featured with anti-corrosion, penetration-proof, anti-abrasion and long service life; 
Valve seat is designed with hard-soft double seal, having reliable tightness; 
With a full bore design, both the coefficient of flow resistance and the pressure loss are very small; 
When the valve is fully opened, medium erosion occurring to its sealing face is smaller than that of other valves; 
The through conduit gate valve with diversion holes installed on a pipeline can also be cleaned by a pipe cleaner directly 
Good flow adjusting ability, high precision of flow characteristic curve and good dynamic adjustment stability;
No space restriction on valve installation, that is, both parallel and perpendicular installations are allowed; 
Leakage rate: ANSI B 16.104 Ⅵ;美標(biāo)低溫球閥http://www.tc29.net/cpzx/info_7_itemid_1.html

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