| 摘要 |
<p>The present invention relates to a structure device of a ball valve having a functional structure to control a flow rate corresponding to steps of the ball valve and having a convex plate which is formed as an outlet model according to types in the front outer end of a circular ball base through hole assembled and installed in the front side of the ball base. In addition, circular disk plates having penetrating mini holes of a predetermined number are inserted in the penetrated inner periphery space inside the ball base and after, a pile of disks is made of a multi-layered and assembled structure. The ball valve invention can be used for a means to control a fluid flow rate which is under the injection pressure according to a high differential pressure.</p> |
