| 摘要 |
<p>The present invention relates to a ball valve assembly to open and close a flow path and, more specifically, relates to a ball valve assembly having improved stability. The ball valve assembly to open and close a flow path comprises: a housing having a flow path formed thereon; an opening and closing means to open and close the flow path; and an operating means. The opening and closing member of the opening and closing means includes a stopping means composed of ball valves, and fixating the closed state of the opening and closing member. Therefore, a problem such as a flow path being opened as the operating means operates against a user′s will can be solved.</p> |
