Ceramic plug valve, also known as wear-resistant plug valve, is a type of plug valve with a layer of ceramic lining on the inner cavity of the metal valve body and the surface of the metal gate plate. It has the advantages of wear resistance and high temperature resistance, and is mainly used in environments containing powdered particles and slurry. Currently, this plug valve is mainly used in the fields of power, papermaking, coal mining, etc., with a large diameter of up to DN1200. It can be used in three types: manual ceramic plug valve, electric ceramic plug valve, and pneumatic ceramic plug valve.