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China FCSV Ceramic Slide Valve - High-Performance Suppliers and Factory Solutions for Erosion Resistance and Control
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Structural Characteristics
- The valve core moves linearly on the valve seat, creating a planar seal at the edge of the valve seat flow passage hole, allowing throttling, opening, and closing.
- The design minimizes flow resistance and erosion, with no sharp turns or stagnation points.
- The valve core is embedded in a metal mounting plate with ceramic to prevent breakage from clogging.
- Each valve seat and valve core are pair-ground to ensure sealing.
- The metal mounting plate has a T-slot that connects with the valve stem's T-slot, keeping the valve core floating and improving sealing performance.
- Both valve core and seat are made of structural ceramic, with ceramic-lined flow passages at the flanges for wear, corrosion, and erosion resistance.
- The valve's design significantly extends its service life (interior valve body currently cannot be lined with ceramic).
- Equipped with a "live load" that maintains a constant load under significant wear, ensuring packing longevity.
💡 FCSV1 Ceramic Slide Valve features a simple and compact structure, requiring low push-pull force for opening and closing. It is resistant to jamming and flow deviation and incorporates a self-cleaning function. This valve can function both as a control valve and as an on-off valve, making it highly versatile.
It is especially suitable for media containing high levels of impurities, prone to scaling, crystallization, or with high viscosity and large particles, effectively preventing clogging.
The main sealing components are made of high-performance structural ceramic, providing excellent corrosion resistance, wear resistance, and erosion resistance, significantly extending the valve's service life. The valve seat is designed to re-establish the flow channel at the center of the pipeline, ensuring fluid passes through the center of the valve. This protects both the valve body and downstream piping, dramatically increasing the operational life of the system.
The FCSV1 valve can handle slurries, gas-solid particulate media, and gas-solid-liquid three-phase media under severe erosion conditions, maintaining smooth operation, long-term sealing, and extended service life.
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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.
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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 |
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Main Applications
- Coal Chemical Industry: Quenching water control valve; black and grey water flow control valve.
- Salt Chemical Industry: Lime milk flow control valve in soda ash production.
- Petrochemical Industry: Catalyst particle transportation control valve.
- Ore Metallurgy: Tailings backfill, ore transportation, ore feeding, copper mine on-off and control valves.
- Waste Incineration Power Plants: Limestone slurry atomization flow control valve.
Frequently Asked Questions
What makes the FCSV1 ceramic slide valve suitable for high-impurity media?
The FCSV1 valve features a self-cleaning function and a simple linear valve core movement that minimizes clogging. Its design is specifically engineered for media with high levels of impurities, scaling tendencies, crystallization, high viscosity, or large particles, ensuring reliable and uninterrupted flow control.
What ceramic materials are used in the FCSV ceramic slide valve?
Both the valve core and seat are made of high-performance structural ceramic, including options such as Y-ZrO₂ (Y-TZP), Mg-ZrO₂ (M-PSZ), Al₂O₃ (90%, 95%, 99%), Si₃N₄, and SiC. These materials provide exceptional hardness, wear resistance, corrosion resistance, and erosion resistance for extended service life.
Can the FCSV1 valve be used as both a control valve and an on-off valve?
Yes. The FCSV1 ceramic slide valve is highly versatile — it can function as a throttling control valve for precise flow regulation as well as a full on-off valve for complete shut-off applications. This dual functionality makes it an economical and flexible solution for various industrial processes.
What industries are the FCSV ceramic slide valves commonly used in?
The FCSV ceramic slide valve is widely applied across multiple industries, including coal chemical, salt chemical, petrochemical, ore metallurgy, and waste incineration power plants. It is especially suited for handling slurries, gas-solid particulate media, and gas-solid-liquid three-phase media under severe erosion conditions.
How does the ceramic lining extend the valve's service life?
The ceramic lining on both the valve core, seat, and flow passages at the flanges provides superior resistance to wear, corrosion, and erosion. The valve seat re-establishes the flow channel at the center of the pipeline, ensuring fluid passes centrally through the valve, which protects the valve body and downstream piping from damage and dramatically increases operational lifespan.
What does the "live load" packing feature offer in the FCSV valve?
The "live load" packing system is designed to maintain a constant and consistent sealing load even as the packing material experiences significant wear over time. This ensures long-term, reliable sealing performance without the need for frequent manual adjustments or replacements, reducing maintenance costs and downtime.