| 摘要 |
A valve system (20) for a vessel with a vessel opening, comprising: a valve (22); an actuator (80); the actuator is a linear and rotary actuator; wherein the actuator (80) rotates the valve (22) from an open position to a closed position; the valve has a top; the top has a shape; wherein the shape corresponds to a shape of the vessel opening wherein the shape of the top forms a continuous inner surface of the vessel when the valve is in the closed position. |
