Zirconia ceramic ball valve, butterfly valve, gate valve in addition to the vast majority of advantages of metal valves, but also has excellent wear resistance, acid and alkali, corrosion resistance, high temperature, high toughness and anti-static characteristics, so it can Harsh environment, the use of non-polluting materials and the environment; widely used in petrochemical, metallurgical, paper, power plants, oil refining and other industries of various acid and alkali gas, liquid, high temperature steam and mud transport system. This product, its fineness and wear resistance from hot and cold expansion, in harsh environments or under the fluid, the more good operability and longer service life. Zirconia ceramic ball valve with low cost, high operating economy and long life (titanium valve is 2 to 4 times) the advantages.