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China FCCV8 Double Lining Ceramic Ball Valve: Reliable Safety from Leading Suppliers and Factory
Structural Characteristics and Advantages
- 🛡️ Double lining, double sealing: ensures enhanced safety and corrosion protection.
- 🔩 Molded PTFE lining with dovetail groove fixation: prevents peeling or detachment.
- ⚙️ Split-body design with minimized cavity: avoids material accumulation, reducing leakage risks.
- 💎 Ceramic flow passage: guarantees high resistance to abrasion and chemical attack, extending valve lifespan.
- 🔧 Enhanced external protection: preserves the integrity of the metal outer wall, reducing maintenance costs.
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
The FCCV8 is widely used in chemical plants, salt chemical industry, pharmaceutical production, and environmental protection systems, where media are strongly corrosive and highly volatile.
With its double safety protection and advanced lining technology, the FCCV8 is a high-security ceramic valve solution, delivering unmatched durability and reliability in the harshest industrial environments.
Frequently Asked Questions (FAQ)
Q
What makes the FCCV8 ceramic ball valve more durable than standard metal valves?
The FCCV8 features a ceramic flow passage made from advanced materials such as ZrO₂ or Al₂O₃, which offer significantly higher hardness, compressive strength, and chemical resistance compared to standard metal valves. This extends the valve's operational lifespan even in highly abrasive or corrosive media environments.
Q
What is the purpose of the double lining and double sealing design?
The double lining and double sealing design provides two independent layers of protection against leakage and corrosion. This dual-barrier system significantly enhances operational safety, particularly when handling toxic, aggressive, or volatile chemical media.
Q
Which ceramic material is recommended for the highest temperature applications?
Based on the technical parameters table, 99 Al₂O₃, Si₃N₄, and SiC all support operating temperatures up to 1500°C, making them the preferred choices for extreme high-temperature industrial applications.
Q
Is the FCCV8 suitable for use with hydrofluoric acid (HF)?
For HF media, SiC-lined valves are the most suitable option, as SiC receives an "A" rating (no significant corrosion) in both 10% HF at 60°C and 46% HF at 95°C. ZrO₂ and Al₂O₃ linings are rated "C" for HF and are not recommended in such environments.
Q
How does the PTFE lining with dovetail groove fixation prevent detachment?
The molded PTFE lining is mechanically locked into the valve body using a dovetail groove structure. This interlocking design prevents the lining from peeling, shifting, or detaching under pressure fluctuations or thermal cycling, ensuring long-term sealing integrity.
Q
In which industries is the FCCV8 ceramic ball valve typically applied?
The FCCV8 is widely deployed in chemical plants, salt chemical industry, pharmaceutical production, and environmental protection systems — particularly in processes involving strongly corrosive, highly volatile, or abrasive media where standard valves would fail prematurely.