Electric four way ball valve has been widely utilized for the exploiting, refining and transporting systems of oil, gas and mineral. It can also be utilized to produce chemical products, medicine; production system of hydroelectricity, thermal power and nuclear power; draining system, heating system and gas system in cities or industries. Ball valve, being widely used in the system of irrigation and drainage or production system in metallurgy, is one of the most important machinery products which are closely linked with construction, defense and daily life. In pipelines, electric four-port ball valve can interrupt or connect medium so that medium can be transported to specific point as procedure.
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