Wear Resistance: Hardness reaches Mohs 8.5+, allowing for up to 10,000 switching cycles without leakage.
Corrosion Resistance: Resistant to most acids, bases, and salts, except for hydrofluoric acid.
High Temperature Performance: Melting point of 2700℃, maintaining stable form at high temperatures.
Sealing Performance: High sphericity ball and self-lubricating surface achieve "zero leakage".
Thermal Stability: Linear expansion coefficient is similar to that of metals, preventing failure due to thermal expansion and contraction.
Product Introduction of Zirconia Ceramic Rotary Valves:
Zirconia ceramic rotary valves are high-performance valve devices manufactured using zirconia ceramic (ZrO₂) material. Their core sealing components are made of structural ceramics.
Technical Parameters
1. Base Material: High-purity zirconium oxide ceramic (ZrO₂), milky white in its pure state, and light yellow after the addition of modified rare earth materials.
2. Forming Accuracy: Strict control of sphere roundness, with a surface finish reaching W2 grade (ultra-precision machining standard).
3. Mechanical Properties: Rockwell hardness HRA88 or higher, bending strength exceeding 800MPa, and compressive strength exceeding 3000MPa.
Application Fields
1. Mining and Metallurgy: Transportation of particle-containing media such as ore pulp, tailings, and metal powders.
2. Power Systems: Ash removal systems and desulfurization and denitrification devices in thermal power plants (handling coal ash and gypsum slurry).
3. Chemical Industry: Control of corrosive solutions such as sulfuric acid, hydrochloric acid, and sodium hydroxide.
4. Environmental Engineering: Media control in wastewater treatment and waste gas treatment systems.
Advantages compared to traditional valves
Comparison dimensions | Zirconia ceramic valve | Metal valve |
Wear resistance life | Over 10,000 switching cycles | Typically 2000-5000 times. |
Corrosion resistance | Resistant to most chemical media. | Susceptible to acid and alkali corrosion. |
High-temperature performance | Stable up to 2700℃ | Easily deformed at high temperatures. |
Maintenance costs | Long replacement cycle | Requires frequent maintenance. |
Sealing performance | Maintain zero leaks in the long term. | As the usage rate gradually declines |
Supports custom specifications.
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