| 摘要 |
A high pressure environmental ball valve wherein the ball valve member is tiltable into engagement under the influence of pressure into tight sealing relationship with a sealing ring at the valve outlet. The spindle is connected to the ball by a loose fitting wedge member and cooperating V-groove. When operation of the ball is desired, the spindle is moved linearly before rotation in order to bring the wedge on the end of the spindle into tight engagement with the V-groove, low-torque rotation being possible. |
