FREE-VALVE brand 2PC Full Lined Ceramic Ball Valves are designed with engineering ceramics the engineering ceramics internal parts provide excellent wear resistance.The body of a two-piece ball valve is composed of a main body and a secondary body. After the ball , seat, and stem are installed in the main body, the secondary body is connected to the main body through nuts or bolts. The ceramic ball valves are widely used as an open and close function as well as a throttling control tasks in corrosive medium with abrasive solids content.