We supply large quantity of ceramic valve disks every year.
Most of our customers come from America, Italy and other European countries.
Our ceramic valve disks are popular with their good performance in the high temperature, good insulating property and longevity.
We can also produce the irregular ceramic products according to customer’s drawing.
Alumina ≥ 95%
Hardness HV5 ≥1050
Density g/cm3 ≥3.6
Bending Strength >=3200 Kgf/cm2
Pressure resistance>=13500 Kgf/cm2
Fracture Toughness >=4 MPa*m1/2
Water Absorption: 0
Highness <= +/-0.03
Levelness of Machined Surface <0.6μm(aperture<2)
Surface roughness(Ra) <=0.3μm
Surface contact area ratio 60<=ta<=80 ta(optically measured)