0102030405
FCCV Unlined Hard Ceramic Ball Valve
Structural characteristics and advantages
- ● Three-piece floating ball structure for easy maintenance and reliable sealing.● Connection options: internal thread, butt weld, and flange (standards DIN/ANSI/API/JIS available).● Sealing design: ceramic-to-ceramic main seal with graphite auxiliary seal, ensuring leak-free operation up to 500°C.● Full-bore passage minimizes pressure loss and prevents blockage when handling particulate or fibrous media.● High strength ceramic ball and seat resist abrasion far beyond traditional metal valves.
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 ≤ 0.1mmg/cm²/day: Can be ignored or has no corrosion, recommended for use.
B = 0.1~0.3mmg/cm²/day: Slight or very minor corrosion, use with caution.
C ≥ 0.3mmg/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 handling and abrasive ash systems.Thanks to its robust design and unlined ceramic construction, the FCCV unlined hard ceramic ball valve provides long service life, reduced downtime, and excellent cost-performance ratio in environments where conventional alloy valves fail. It is the preferred choice for industries demanding maximum reliability under abrasive and high-temperature conditions.