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Economical Ceramic Ball Valve from China Suppliers - Durable, High-Performance Factory Solution for Various Industries
Key Features
- Economic Design: Simplified structure for lower cost without sacrificing reliability.
- Material Flexibility: Cost-effective ceramics tailored to working conditions.
- Corrosion Resistance: Zinc-free, copper-free, ideal for lithium battery and chemical sectors.
- Wear Resistance: Excellent abrasion protection, even in abrasive media.
- High Performance: Long service life and dependable sealing in moderately challenging environments.
Main Technical Parameters
| Item | Y-ZrO / Y-TZP | Mg-ZrO₂ / M-PSZ | 90 Al₂O₃ | 95 Al₂O₃ | 99 Al₂O₃ | Si₃N₄ | SiC | Common ceramics | Carbide alloy | 45# Steel |
| Density g/cm³ | 6.0~6.05 | 5.72~5.74 | 3.45~3.55 | 3.6~3.75 | 3.9~3.95 | 3.2~3.33 | 3.15~3.25 | 3.0~3.5 | 14~18 | 7.8 |
| Hardness HRA/C | 87 | 85 | 90 | 90 | 92 | 92 | 94 | 50~60 | 70 | 36 |
| Flexural Strength MPa | 1150 | 900 | 350 | 370 | 450 | 1200 | 470 | 20~50 | 2000 | 804 |
| Fracture Toughness (KIC) MPa√m | 10~12 | 13~15 | 3.4 | 3.6 | 4.5 | 7 | 4 | -- | 20 | 101 |
| Compressive Strength MPa | 2000 | 1800 | 1700 | 2000 | 2200 | 2800 | -- | -- | 4000 | 2000 |
| Thermal Shock Resistance °C | 87 | 110 | -- | -- | 50 | 200 | 75 | -- | 500 | 500 |
| Thermal Expansion Coefficient ×10⁻⁶/°C | 9.6 | 10 | 7.6 | 7.8 | 8.3 | 3.4 | 4 | -- | 7 | 12 |
| Modulus of Elasticity GPa | 200 | 200 | 310 | 330 | 350 | 300 | 400 | -- | 600 | -- |
| Crushing Load KN (Φ6mm) | 15 | 10 | 3.5 | 3.6 | 4 | 18 | 3.5 | -- | -- | -- |
| Using Temperature °C | <160 | <1000 | <1200 | <1250 | <1500 | <1500 | <1500 | -- | -- | <560 |
| Water Absorption | 0 | 0 | 0.02% | 0.01% | 0.00% | 0 | 0.50% | 5~10% | -- | -- |
| Corrosion Prevention | Good | Good | Good | Good | Good | Good | Good | Flooey | Good | Flooey |
* Data sources: test results or issued original documents.
Anti-Corrosive Performance Reference Table
| Media | Temperature | ZrO₂ | 99.9% Al₂O₃ | SiC | Si₃N₄ | Graphite | PTFE | Fluororubber | SS304 | SS316 | HC |
| 20% HCL | 60°C | A | A | A | B | A | A | A | C | C | B |
| 20% HCL | 95°C | A | A | A | C | A | A | A | -- | -- | C |
| 90% H₂SO₄ | 60°C | A | A | A | A | A | A | A | C | C | B |
| 90% H₂SO₄ | 95°C | A | A | A | B | A | A | A | C | C | C |
| 60% H₃PO₄ | 60°C | A | A | A | C | A | A | A | C | C | A |
| 60% H₃PO₄ | 95°C | A | A | A | C | A | A | A | C | C | A |
| 10% HF | 60°C | C | B | A | A | A | A | A | C | C | B |
| 46% HF | 95°C | C | C | A | C | A | A | A | -- | -- | C |
| 60% HNO₃ | 60°C | A | A | A | C | B | A | A | A | A | C |
| 60% HNO₃ | 95°C | A | B | A | C | B | A | A | B | B | C |
| 30% NaOH | 60°C | A | B | A | B | A | A | A | A | A | A |
| 30% NaOH | 95°C | B | B | A | C | A | A | A | A | B | A |
A ≤ 0.1 mmg/cm²/day: Can be ignored or has no corrosion, recommended for use.
B = 0.1~0.3 mmg/cm²/day: Slight or very minor corrosion, use with caution.
C ≥ 0.3 mmg/cm²/day: Significant corrosion, not recommended for use.
-- Intense corrosion, to the extent that measurement is not possible.
Flow Characteristic Sheet of Ceramic Ball Valve
| Core Specifications | O-type ball core | V60° ball core | V45° ball core | V30° ball core |
| DN15 | 10 | 7 | 4 | 3 |
| DN20 | 18.2 | 12 | 8 | 5 |
| DN25 | 29 | 18 | 12 | 8 |
| DN32 | 47 | 30 | 20 | 13 |
| DN40 | 73 | 46 | 31 | 21 |
| DN50 | 114 | 72 | 48 | 32 |
| DN65 | 181 | 115 | 76 | 51 |
| DN80 | 292 | 185 | 123 | 82 |
| DN100 | 456 | 289 | 192 | 128 |
| DN125 | 712 | 452 | 300 | 201 |
| DN150 | 1025 | 650 | 432 | 289 |
| DN200 | 1822 | 1156 | 769 | 514 |
Application Fields
- Steel industry: Coal powder injection, hot metal desulfurization, silica, and MgO handling.
- Gas and pneumatic conveying: Sand, glass particles, cement, ore, and dust.
- Power plants: Flue gas dust, fly ash, and abrasive ash systems.
- Lithium battery industry: Zinc-free, copper-free processes requiring high purity.
With its combination of affordability, durability, and versatility, the ELCV provides an optimal choice for users seeking the benefits of ceramic valve technology at reduced cost.
Frequently Asked Questions (FAQ)
❓ What makes the ceramic ball valve an economic choice compared to standard valves?
The ceramic ball valve features a simplified structure that reduces manufacturing costs while maintaining high reliability. By using cost-effective ceramic materials tailored to specific working conditions, it delivers long service life and dependable sealing without the premium price of fully engineered high-end valves.
❓ Which ceramic materials are available, and how do they differ in performance?
Several ceramic options are available, including Y-TZP (Zirconia), M-PSZ, 90/95/99 Al₂O₃, Si₃N₄, and SiC. They vary in density, hardness, flexural strength, fracture toughness, and thermal properties. For example, Si₃N₄ offers the highest flexural strength at 1200 MPa, while 99 Al₂O₃ provides excellent temperature resistance up to 1500°C.
❓ Is the ceramic ball valve suitable for use in the lithium battery industry?
Yes. The ceramic ball valve is zinc-free and copper-free, making it ideal for lithium battery manufacturing and chemical sectors that require high-purity, contamination-free fluid handling. This ensures the integrity of sensitive production processes.
❓ How does the valve perform in highly corrosive media such as HCl or H₂SO₄?
Most ceramic materials such as ZrO₂, Al₂O₃, SiC, and PTFE-sealed valves show an "A" rating (≤ 0.1 mmg/cm²/day) in both 20% HCl and 90% H₂SO₄ at temperatures up to 95°C, meaning negligible or no corrosion. This makes ceramic valves highly recommended for aggressive acid environments.
❓ What flow characteristics are available for the ceramic ball valve?
The valve is available with O-type, V60°, V45°, and V30° ball core configurations. Flow capacity (Cv) varies by size from DN15 to DN200. The O-type ball core provides the highest flow, while the V30° configuration offers the most precise flow control for throttling applications.
❓ In which industries is the ceramic ball valve commonly applied?
The ceramic ball valve is widely used in the steel industry (coal powder injection, desulfurization), gas and pneumatic conveying systems (sand, cement, ore), power plants (fly ash, flue gas dust), and the lithium battery industry. Its wear and corrosion resistance make it ideal for abrasive and chemically aggressive media.