Gear Box Ceramic Lined Ball Valve

1-Alumina (Al2O3) is one of the most economic ceramic materials, it has great corrosion and abrasion resistance properties.
2-Zirconium (ZrO2) is the highest strength and toughness at room temperature of all engineered ceramics. But this ZrO2 has operating temperature limitation, the Max temperature is 320 degC.
3-Silicon Nitride is one of great ceramic material especially used for high temperature application, special housing and ceramic parts permit solution temperature up to 950 degC.
4-Silicon Carbide is the most hardness material of all engineered ceramics, in the other word SiC hardness next to Diamond. But very low fracture toughness of SiC is a big weakness for ceramic parts, it’s easy be broken.

Characteristics

This valve  is application as on-off or pipelines with high-hardness grains or wwith both soft grns and corrosive medium .Its nominal pressure  is 1.6Mpa ,and applicable temperature ≤200℃ 。And air supply pressure 0.6-0.8 Mpa .All mediumcontacting parts are made of structure ceramic ,featuring extremely high chemical stability and hardness（Rockwell Hardness HRC90 0），Only next to diamond .Therefor ,this valve  has  extremely strong resistance to abrasion ,corrosion and erosion ,good heat insulation and small thermal expansion the ball body is made with advanced grinding equipment and process with high–precision ball roundness and good surface quality ,and after facing –up with the valve seat ,a good seal ability can be obtained by means og self-lubrication of Zr02CERAMIC .thanks to the ceramic’s strong resistance to abrasion ,this valves is durable and extremely reliable with a long service life being 2-4 times of that Ti alloy and Monel  valves 

Materials for main parts

Application specification