Sealing device and ball valve assembly

The invention relates to a sealing device and a ball valve assembly. The sealing device comprises an annular elastic sealing body, and the elastic sealing body is used for being installed in an inlet or an outlet of a shell of the ball valve assembly. The elastic sealing body is provided with a main body part, a first sealing lip and a second sealing lip. The main body part extends in the axial direction and is provided with a first end and a second end which are opposite in the axial direction, the first end is used for being arranged back to a rotary valve element of the ball valve assembly, the first sealing lip is located on the radial outer side of the first end, and the second sealing lip is located on the radial inner side of the first end. The sealing device and the ball valve assembly are high in adaptability and simple in structure. 本发明涉及一种密封装置和球阀组件。该密封装置包括环形的弹性密封体，弹性密封体用于安装在球阀组件的壳体的入口或出口中。其中，弹性密封体具有主体部、第一密封唇和第二密封唇。主体部沿轴向延伸并且具有沿轴向相对的第一端和第二端，第一端用于背向球阀组件的回转阀芯来设置，第一密封唇位于第一端的径向外侧，第二密封唇位于第一端的径向内侧。本发明的密封装