Cameron eccentric butterfly valves are reliable and durable, and are widely used in the petroleum and petrochemical industries. Cameron's double eccentric structure design substantially eliminates the phenomenon of excessive squeezing and scraping between the butterfly plate and the valve seat, reduces the opening distance, reduces wear and tear, and increases the sealing performance and service life. It is applied to the control and protection of pipeline systems, in oil transportation, chemical material preparation, storage and transportation of acid and alkali solutions, and so on. Due to its excellent sealing performance and corrosion resistance, the eccentric butterfly valve can effectively prevent the medium from leaking and polluting the environment. Widely used in petroleum and petrochemical, metallurgy, water treatment, water supply and drainage and other fields.