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High-Performance FCRV Ceramic C Rotary Valve from China Factory - Top Suppliers for Erosive Conditions
FCRV CERAMIC C ROTARY VALVE
The ball crown of the valve maintains close contact with the seat, allowing for the shearing of adhered materials and debris on the sealing pair, ensuring the cleanliness of the sealing surfaces. The inherent self-lubricating properties of ceramics ensure that the ball core and the seat do not stick to the medium.
The design adopts a structural configuration with upper and lower support shafts for positioning. The support shafts are statically fitted with the valve body, preventing any tilting of the C-rotary. The valve stem is set inside the upper support shaft, and the thrust of the medium on the C-rotary is borne by the upper and lower support shafts, with the valve stem only transmitting the torque for opening and closing the ball valve.
Structural Characteristics
⚙️
Special C-type structure design with ball core mechanically connected and embedded by C-type lugs and ceramic ball crown, protecting lugs from erosion.
🎯
Concentric design keeps ceramic ball crown in close contact with the seat, scraping off adhered materials and ensuring sealing performance.
💪
C-type lugs directly bear rotational torque, ideal for harsh conditions with crystallization, scaling, caking, high solid content, and clogging.
🚫
Cavity-free design prevents material accumulation inside the valve.
🔒
Fixed ball design prevents ball core movement under pressure, resulting in low operating torque, achieving ANSI Class VI sealing.
🛡️
All flow passages in contact with the medium are lined with ceramic, ensuring corrosion resistance.
✅
Anti-blowout stem design ensures valve safety and reliability.
Main Technical Parameters
| Nominal diameter | Ball bore | Shape | DN40 (1 1/2") | DN50 (2") | DN65 (2 1/2") | DN80 (3") | DN100 (4") | DN125 (5") | DN150 (6") | DN200 (8") | DN250 (10") | DN300 (12") | DN350 (14") |
| DN50 | 2" | round | 62 | ||||||||||
| DN65 | 2 1/2" | round | 62 | 97 | |||||||||
| DN80 | 3" | round | 60 | 95 | 155 | ||||||||
| DN100 | 4" | round | 55 | 90 | 152 | 249 | |||||||
| DN125 | 5" | round | 86 | 145 | 249 | 389 | |||||||
| DN150 | 6" | round | 137 | 238 | 380 | 608 | |||||||
| DN200 | 8" | round | 230 | 366 | 600 | 875 | |||||||
| DN250 | 10" | round | 354 | 588 | 865 | 1377 | |||||||
| DN300 | 12" | round | 567 | 850 | 1350 | 2515 | |||||||
| DN350 | 14" | round | 839 | 1322 | 2465 | 3383 | |||||||
| DN400 | 16" | round | 1280 | 2385 | 3296 | 4651 |
| Nominal diameter | Exterior Size | GB PN10 Flange Dia. | HG PN10 Flange Dia. | Weight (Kg) | ||||||||||||||
| Inch | mm | dn | L | W | H | D1 | D2 | D3 | N-M | T | f | D1 | D2 | D3 | N-M | T | f | |
| 1/2" | 15 | 15 | 108 | 166 | 94 | 45 | 65 | 95 | 4-M12 | 14 | 2 | 45 | 65 | 95 | 4-M12 | 14 | 2 | 4.5 |
| 3/4" | 20 | 15 | 117 | 166 | 94 | 58 | 75 | 105 | 4-M12 | 16 | 2 | 58 | 75 | 105 | 4-M12 | 16 | 2 | 6 |
| 1" | 25 | 20 | 127 | 166 | 97 | 68 | 85 | 115 | 4-M12 | 16 | 2 | 68 | 85 | 115 | 4-M12 | 16 | 2 | 7 |
| 1 1/4" | 32 | 25 | 140 | 166 | 104 | 78 | 100 | 140 | 4-M16 | 16 | 2 | 78 | 100 | 140 | 4-M16 | 16 | 2 | 15 |
| 1 1/2" | 40 | 32 | 165 | 237 | 125 | 88 | 110 | 150 | 4-M16 | 16 | 3 | 88 | 110 | 150 | 4-M16 | 16 | 3 | 23 |
| 2" | 50 | 40 | 178 | 237 | 134 | 102 | 125 | 165 | 4-M16 | 18 | 3 | 102 | 125 | 165 | 4-M16 | 18 | 3 | 32 |
| 2 1/2" | 65 | 50 | 190 | 237 | 145 | 122 | 145 | 185 | 8-M16 | 19 | 3 | 122 | 145 | 185 | 8-M16 | 19 | 3 | 39 |
| 3" | 80 | 65 | 203 | 270 | 169 | 138 | 160 | 200 | 8-M16 | 21 | 3 | 138 | 160 | 200 | 8-M16 | 21 | 3 | 45 |
| 4" | 100 | 80 | 229 | 191 | 158 | 180 | 220 | 8-M16 | 22.3 | 3 | 158 | 180 | 220 | 8-M16 | 22.3 | 3 | 59 | |
| 5" | 125 | 100 | 254 | 407 | 188 | 210 | 250 | 8-M16 | 23 | 3 | 188 | 210 | 250 | 8-M16 | 23 | 3 | 69.5 | |
| 6" | 150 | 100 | 267 | 407 | 212 | 240 | 285 | 8-M20 | 26 | 3 | 212 | 240 | 285 | 8-M20 | 26 | 3 | 90 | |
| 8" | 200 | 150 | 419 292 |
520 248 |
268 | 295 | 340 360 |
8-φ22 8-M20 |
22 33 |
2 3 |
268 262 |
295 290 |
340 360 |
8-φ22 8-M20 |
22 33 |
2 3 |
200 | |
| 10" | 250 | 200 | 457 | 580 | 320 | 350 | 395 | 12-M20 | 24 | 2 | 320 | 350 | 395 | 12-M20 | 24 | 2 | 290 | |
| 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
Titanium Dioxide (TiO₂) Industry
Acidic slurries in the sulfate process for TiO₂ production.
TiCl₄ slurry and sludge in the chloride process.
Chlorine with biochemical substances and TiO₂ powder.
TiCl₄ slurry and sludge in the chloride process.
Chlorine with biochemical substances and TiO₂ powder.
Salt Chemical Industry
Salt sludge, caustic mud, carbide residue slurry, waste sludge, sand-removed ammonia wastewater.
Petrochemical Industry
Molecular sieve pipelines in catalyst production units.
Fluidized catalytic cracking units (Al₂O₃ powders).
Fluidized catalytic cracking units (Al₂O₃ powders).
Mining & Metallurgy
Transport and blending of copper concentrates; safety valves for copper transport bins.
Dye Manufacturing
TiO₂-containing solutions at specified concentrations, sulfuric acid solutions, and diluted acid solutions.
Pulp & Paper Industry
Kaolin, feldspar, talc, quartz, MgO, CaCO₃, and other paper fillers.
Bleaching agents, NaOH, and filtrates.
Bleaching agents, NaOH, and filtrates.
Frequently Asked Questions (FAQ)
Q
What is the FCRV Ceramic C Rotary Valve and how does its C-type structure work?
The FCRV Ceramic C Rotary Valve features a special C-type structure where the ball core is mechanically connected and embedded by C-type lugs and a ceramic ball crown. The C-type lugs directly bear rotational torque, protecting them from erosion by the medium. The concentric design ensures the ceramic ball crown remains in constant close contact with the seat, which shears off adhered materials and maintains a clean sealing surface.
Q
What sealing standard does the FCRV Ceramic C Rotary Valve achieve?
The FCRV Ceramic C Rotary Valve achieves ANSI Class VI sealing. This is made possible by the fixed ball design, which prevents ball core movement under pressure, resulting in low operating torque and superior sealing performance suitable for demanding industrial applications.
Q
Which industries and applications is the FCRV Ceramic C Rotary Valve best suited for?
The FCRV Ceramic C Rotary Valve is ideal for a wide range of demanding industries, including Titanium Dioxide (TiO₂) production, Salt Chemical Industry, Petrochemical Industry (catalyst units and fluidized catalytic cracking), Mining & Metallurgy (copper concentrate transport), Dye Manufacturing, and the Pulp & Paper Industry. It excels in environments with crystallization, scaling, caking, high solid content, and clogging.
Q
What ceramic materials are available for the valve, and how do they compare in terms of hardness and corrosion resistance?
Several ceramic materials are available, including Y-ZrO₂ (Y-TZP), Mg-ZrO₂ (M-PSZ), 90/95/99 Al₂O₃, Si₃N₄, and SiC. Hardness ranges from HRA 85 (Mg-ZrO₂) up to HRA 94 (SiC). All ceramic options offer good corrosion resistance against strong acids such as HCl, H₂SO₄, H₃PO₄, and HNO₃, as well as alkalis like NaOH — outperforming common stainless steels (SS304, SS316) in most corrosive media.
Q
What nominal diameter range does the FCRV Ceramic C Rotary Valve cover?
The FCRV Ceramic C Rotary Valve is available from DN50 (2") up to DN400 (16"), covering a wide range of pipeline sizes. Flange dimensions are provided for both GB PN10 and HG PN10 standards, making the valve compatible with various international piping systems.
Q
What safety features does the FCRV Ceramic C Rotary Valve include?
The valve incorporates multiple safety features: an anti-blowout stem design ensures the valve stem cannot be ejected under pressure, guaranteeing operational safety. The upper and lower support shafts bear the full thrust of the medium on the C-rotary, while the valve stem only transmits opening/closing torque. Additionally, the cavity-free design prevents material accumulation inside the valve body, reducing blockage and maintenance risks.