Yixing Hengyuan Ceramic Technology Co., Ltd.
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Ceramic star valves offer significant advantages in terms of corrosion resistance. Thanks to the high hardness and chemical stability of ceramic linings, many chemicals are unable to corrode its surface. Therefore, it is widely used as lining material for storage tanks, reactors, pipelines and other equipment in various chemical plants and laboratories. The use of ceramic linings can reduce equipment corrosion, extend equipment service life, and improve production efficiency.
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Number | Specification | Unloaded volume | Minimum speed | Maximum speed |
|
1
| DN150 | 3L | 25r/min | 42r/min |
|
2
| DN200 | 6L | 25r/min | 42r/min |
|
3
| DN250 | 10L | 25r/min | 42r/min |
|
4
| DN300 | 15L | 25r/min | 42r/min |
|
5
| …… | …… | …… | …… |
| Naterial | Unit | A95% Alumina Ceramics | A97% Alumina Ceramics | A99% Alumina Ceramics | A99.7% Alumina Ceramics |
| Density | g/cm³ | 3.6 | 3.72 | 3.85 | 3.85 |
| Flexural Strength | Mpa | 290 | 300 | 350 | 350 |
| Compressive Strength | Mpa | 3300 | 3400 | 3600 | 3600 |
| Modulus of Elasticity | Gpa | 340 | 350 | 380 | 380 |
| Impact Resistance | MPam1/2 | 3.9 | 4 | 5 | 5 |
| Weibull Modulus | M | 10 | 10 | 11 | 11 |
| Vickers Hardulus | HV0.5 | 1800 | 1850 | 1900 | 1900 |
| Thermal Expansion Coefficient | 10-6K-1 | 5.0-8.3 | 5.0-8.3 | 5.4-8.3 | 5.4-8.3 |
| Thermal Conductivity | W/Mk | 23 | 24 | 27 | 27 |
| Thermal Shock Resistance | △T℃ | 250 | 250 | 270 | 270 |
| *Maximum Use Temperature | ℃ | 1600 | 1600 | 1650 | 1650 |
| Volume Resistivity at 20℃ | Ω | ≥1014 | ≥1014 | ≥1014 | ≥1014 |
| Dielectric Strength | KV/mm | 20 | 20 | 25 | 25 |
| Dielectric constant | εr | 10 | 10 | 10 | 10 |
