关闭阀门两次，使得密封环能够自动校准中心。
Valve is closed twice so that the seal ring can self-center.
本发明提出一种密封性好、使用安全 性高、结构简单、成本低廉的自动关闭式输液管。
The self-closing infusion tube provided by the invention has the advantages of good sealing, high service safety, simple structure and low cost.
因弹簧总成和阀体中水流压力将锥形压芯和锥形压座自动压合密封，阀体水流通道关闭。
Because the water pressure in spring assembly and valve body makes the conical compression core and seat seal automatically, the flow channel of valve is closed.
应用推荐