Ball Valve of lined valve lined with fluorine plastic, matched with novel structure of lever ball body and as well as the unique elastic lip-sealing seat has he hi-sealed performance and lower torque of operation within t he large pressure difference and temperature variation range. Ball Valve of lined valve can be acted as switchor adjustment to carry the liquids and gas (include the vapor) in various industrial pipes with strong corro sion such as acid, alkaline and salt.the website:Lined Valves | PTFE FEP Lined Valves | Rubber Lined Valves ---China corrosion resistant valves manufacturer