Ball valve with fully-coated ball pad

The utility model relates to the technical field of ball valves, in particular to a ball valve with a fully-wrapped ball pad, which can fully wrap a ball body, prevents fluid from entering a middle cavity of a valve body during opening and closing, avoids the situation that the fluid damages the ball body and affects sealing, and effectively avoids the risk that food fluid retained in the middle cavity is brought into a flow cavity due to bacterial infection. Comprising a valve body, a valve cover and a valve rod, a middle cavity is formed in the valve body, a ball body and a full-wrapping ball pad are arranged in the middle cavity, the outer side of the full-wrapping ball pad is tightly attached to the inner side wall of the middle cavity, a spherical cavity is formed in the middle of the full-wrapping ball pad, the ball body is rotatably installed in the spherical cavity, and a first through hole penetrating left and right is formed in the middle of the ball body; the outer surface of the ball body is tight