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China FIBV Ceramic Inflatable Butterfly Valve - Durable Design from Leading Suppliers & Factory
🔩 Structural Characteristics
- No rotational wear between the ceramic disc and the rubber valve seat.
- Pneumatic-driven, with low torque requirements and lightweight accessories for easy maintenance.
- Ceramic disc is highly wear-resistant, corrosion-resistant, and non-polluting.
⚙️ Operating Conditions
Suitable for gas-solid particle media where high sealing performance and cleanliness are critical.
🌡️Max Temp: 180 °C
💧Max Pressure: 1.6 MPa
📏Size: DN25–250 (1"–12")
🔒Sealing Class: ≥ IV
🏆 Performance Advantages
- Extended service life (2× longer than traditional butterfly valves).
- Reliable sealing under particle-rich and clean operation requirements.
- Easy maintenance with rapid seat replacement and low actuation torque.
📊 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
Ideal for handling particulate and bulk materials, including:
- Cement
- Silica sand
- Fly ash
- Ceramic powder
- Carbon powder
- Precious metal powders
- Battery powders
❓ Frequently Asked Questions
Q What makes ceramic disc valves more durable than traditional butterfly valves?
Ceramic disc valves eliminate rotational wear between the disc and the rubber valve seat, which is the primary cause of degradation in traditional butterfly valves. Combined with the inherent hardness and wear resistance of the ceramic material, this design results in a service life that is typically 2× longer than conventional alternatives.
Q What media types are these ceramic valves suitable for?
These valves are specifically designed for gas-solid particle media where high sealing performance and cleanliness are critical. Typical applications include cement, silica sand, fly ash, ceramic powder, carbon powder, precious metal powders, and battery powders.
Q What are the maximum operating temperature and pressure ratings?
The ceramic disc valve supports a maximum operating temperature of 180 °C and a maximum pressure of 1.6 MPa. These parameters make it suitable for demanding industrial environments involving high-temperature particulate flows.
Q Which ceramic material offers the best corrosion resistance?
Based on the anti-corrosive performance reference table, SiC (Silicon Carbide) demonstrates the broadest corrosion resistance across most media, including HCL, H₂SO₄, H₃PO₄, HF, HNO₃, and NaOH at various concentrations and temperatures. ZrO₂ and 99.9% Al₂O₃ also perform excellently in most acid and alkali environments, with the exception of HF.
Q What size range is available for these ceramic disc valves?
The ceramic disc valves are available in a size range of DN25 to DN250, corresponding to 1 inch to 12 inches. This broad range accommodates a wide variety of pipeline systems in industrial processing plants.
Q How easy is the maintenance of pneumatic ceramic disc valves?
Maintenance is straightforward due to the pneumatic-driven design, which requires low actuation torque. The valve seat can be rapidly replaced without specialized tools, and the lightweight accessories further simplify servicing. The ceramic disc's non-polluting nature also ensures clean operation with minimal downtime.