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China FCCV3 Inner F-Lined Ceramic Ball Valve - Durable, Corrosion Resistant | Suppliers & Factory Direct
Structural Advantages Include
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Flat + concave-convex sealing surfaces between valve body pieces for reliable leak prevention.
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Metal-spring reinforced packing for automatic wear compensation and sustained sealing pressure.
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PTFE seat combined with ceramic ball for low-torque operation and tight sealing.
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Valve body cavity designed with dovetail grooves to secure the lining and prevent damage.
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Multi-sided valve stem and multi-hole ball design ensure smooth operation and reduced leakage risk.
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Split structure with minimized cavity volume to prevent material accumulation.
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.
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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 (for temperatures below 180°C)
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Chlor-alkali Industry
Chlorine filling operations.
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Chemical Processes
Handling strong acids, strong alkalis, and other corrosive chemical mixtures.
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Pharmaceutical Industry
Corrosive process fluids under controlled conditions.
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Seawater Systems & Other Corrosive Media
Particle-free fluids in highly corrosive environments.
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Note: These applications are suitable for conditions where the operating temperature is below 180°C. The FCCV3 represents a highly cost-effective choice for industries requiring maximum corrosion resistance with reliable sealing, offering a significantly longer lifespan than conventional PTFE-lined ball valves.
Frequently Asked Questions (FAQ)
❓ What makes the FCCV3 Inner F-Lined Ceramic Ball Valve different from standard PTFE-lined ball valves?
The FCCV3 combines a PTFE seat with a high-performance ceramic ball, delivering superior corrosion resistance, lower operating torque, and a significantly longer service life compared to conventional PTFE-lined ball valves. Its dovetail groove lining design and metal-spring reinforced packing further enhance structural durability and sealing reliability.
❓ What ceramic materials are available for the ball, and which offers the best performance?
Multiple ceramic materials are available, including Y-ZrO₂ (Y-TZP), Mg-ZrO₂ (M-PSZ), 90/95/99 Al₂O₃, Si₃N₄, and SiC. For the highest hardness and compressive strength, SiC and Si₃N₄ are top choices. Y-ZrO₂ (Y-TZP) offers excellent fracture toughness and is widely recommended for demanding industrial applications.
❓ What is the maximum operating temperature for the FCCV3 ceramic ball valve?
The typical application range is below 180°C for the complete valve assembly. However, the ceramic materials themselves (such as 99 Al₂O₃, Si₃N₄, and SiC) can withstand temperatures up to 1500°C. The actual operating limit depends on the sealing materials and overall valve configuration.
❓ Is the FCCV3 suitable for handling hydrofluoric acid (HF)?
For HF service, SiC and Si₃N₄ ceramic materials are recommended, as ZrO₂ and Al₂O₃ show significant corrosion (rated C) in HF environments. PTFE and Fluororubber sealing components also perform well in HF. Always consult the anti-corrosive performance reference table and confirm material selection with our engineering team before use.
❓ What ball core types are available, and how do they affect flow control?
The FCCV3 is available with O-type, V60°, V45°, and V30° ball cores. The O-type provides full-bore flow suitable for on/off applications, while V-notch cores (V60°, V45°, V30°) offer precise flow throttling and control. The Cv flow coefficient decreases progressively from O-type to V30°, allowing selection based on specific process flow requirements.
❓ How does the FCCV3 prevent leakage and ensure long-term sealing performance?
The FCCV3 employs a multi-layer sealing strategy: flat and concave-convex sealing surfaces between valve body pieces prevent external leakage, while metal-spring reinforced packing automatically compensates for wear to maintain sustained sealing pressure. The multi-sided valve stem and multi-hole ball design further reduce internal leakage risk, ensuring long-term sealing integrity even in aggressive media.