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High-Temperature & High-Pressure Ceramic Ball Valve FCCV5 – Reliable China Suppliers & Factory for Extreme Environments
🔩 Structural Characteristics and Advantages
- Extra-large ceramic ball provides double the strength of conventional designs, enhancing reliability under high stress.
- Scraper-type valve seat with broad sealing surface ensures consistent, long-lasting tightness even with abrasive slurries.
- All hard-sealing surfaces with no graphite or PTFE, guaranteeing stability in high-temperature and corrosive media.
- Dovetail groove housing seal with wide spiral wound gasket achieves zero leakage even under pipeline stress or cyclic thermal shock.
- "Live load" packing system maintains constant sealing pressure, automatically compensating for wear and significantly extending packing life.
🏭 Application Fields
Widely used in slag lock hoppers, coal lock hoppers, deslagging systems, pressure relief systems, steelmaking, coal chemical processes, and other industries where extreme erosion, corrosion, and thermal shock occur.
📋 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 |
⚙️ Typical Applications
🔬 Polysilicon Industry: Silicon powder venting.
⚗️ Coal Chemical Industry: Coal powder pressure relief valves and regulating valves; slag lock hopper pressure relief and punch valves; quench water flow regulation; high differential pressure black ash water flow control.
🧵 Textile Machinery: Jacketed solution valves.
🏆 The FCCV5 represents a technologically advanced and globally unique ceramic ball valve solution, offering unmatched performance, safety, and long-term cost savings in the harshest industrial environments.
❓ Frequently Asked Questions
What makes the FCCV5 ceramic ball valve suitable for high-temperature and high-pressure applications?
The FCCV5 features all hard-sealing surfaces with no graphite or PTFE, a dovetail groove housing seal with wide spiral wound gasket, and an extra-large ceramic ball providing double the strength of conventional designs — all of which ensure reliable performance under extreme temperature, pressure, and corrosive conditions.
What ceramic materials are available for the FCCV5 ball valve, and how do they differ?
The valve is available in multiple ceramic materials including Y-ZrO (Y-TZP), Mg-ZrO₂ (M-PSZ), 90/95/99 Al₂O₃, Si₃N₄, and SiC. Each material offers different properties in terms of hardness, flexural strength, thermal shock resistance, and operating temperature range, allowing selection based on specific application requirements.
How does the "live load" packing system extend the service life of the valve?
The "live load" packing system continuously maintains constant sealing pressure on the packing, automatically compensating for wear over time. This eliminates the need for frequent manual adjustments and significantly extends the packing life, reducing maintenance downtime and operational costs.
Which industries are best suited for using the FCCV5 high-temperature ceramic ball valve?
The FCCV5 is widely used in coal chemical processes (slag lock hoppers, coal lock hoppers, pressure relief systems), steelmaking, polysilicon production (silicon powder venting), textile machinery, and any industrial environment involving extreme erosion, corrosion, and thermal shock.
What ball core types are available, and how do they affect flow characteristics?
The FCCV5 is available with O-type, V60°, V45°, and V30° ball cores. The O-type provides the highest flow capacity (Cv), while V-notch cores offer progressively reduced flow with better throttling and control characteristics, making them ideal for precise flow regulation applications.
Is the FCCV5 ceramic ball valve resistant to strong acids and alkalis?
Yes. Based on the anti-corrosive performance reference table, ZrO₂ and Al₂O₃ ceramic materials demonstrate excellent resistance (Grade A) to most strong acids including HCL, H₂SO₄, H₃PO₄, and HNO₃, as well as alkalis like NaOH, across a wide range of concentrations and temperatures. SiC shows particularly broad chemical compatibility across nearly all tested media.