Electric ceramic ball valve Features: All parts in contact with the medium are structural ceramic materials, its chemical stability and high hardness (Rockwell hardness HRC90), second only to diamond. Therefore, the valve has high wear resistance, corrosion resistance, erosion resistance, and good insulation, thermal expansion. Ball using advanced grinding equipment and technology manufacturing, ball roundness, high precision, good surface quality, with the seat on the research, the use of Zr02 ceramic self-lubrication, can obtain good sealing performance. Completely changed the metal seal valve easy to leak, torque, seal the surface of the shortcomings of corrosion-resistant. Ceramic good wear resistance, so that the valve durable, high reliability. Long life, is 2-4 times the titanium alloy valve and Monel valve. For high-hardness granular media, or soft particles but corrosive medium, the valve has an absolute unparalleled advantage, is currently the only suitable medium for such valves.