1. The valve has the exceedingly high wear-proof capability, corrosion resisting, enduring capability, good heat insulation, small thermal expansion. All parts that the medium is made of ceramics. Its chemical stability and hardness are exceedingly high ( Rockwell hardness HRC90).

2. The ball is processed by advanced polishing equipment that can ensure high circularity, accuracy, good surface quality. The self-lubricating capability of Zr02 ensures the good sealing performance.

3. Thoroughly free from the defects that metal hard sealing has such as big torque, non-corrosion-resistant sealing surface.

4. Good wear-proof capability of ceramics make the valve hard to wear thus ensured high reliability. The lifespan is 2-4 times of titanium alloy valve and Mengnaier valve.

5. The valve fits in granule medium of high hardness, or medium with erosive soft granule. It is also the only valve suitable for this type of medium.