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China FCSV Ceramic Slide Valve - Premium Suppliers and Factory for Erosion-Resistant Solutions
⚙ 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.
The 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.
📈 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 |
🏭 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 (FAQ)
Q
What makes the FCSV1 ceramic slide valve suitable for high-impurity or scaling media?
The FCSV1 features a simple, compact structure with a self-cleaning function and linear valve core movement that prevents jamming. Its design avoids sharp turns and stagnation points, making it highly effective for media prone to scaling, crystallization, high viscosity, or large particle content — all of which can cause clogging in conventional valves.
Q
What ceramic materials are used in the FCSV1 valve, and why are they chosen?
The valve core and seat are made from high-performance structural ceramics such as Y-ZrO₂ (Y-TZP), Al₂O₃, SiC, and Si₃N₄. These materials offer exceptional hardness, high compressive strength, excellent corrosion resistance, and minimal water absorption — properties that significantly outperform conventional metals in wear and erosion resistance.
Q
Can the FCSV1 ceramic slide valve be used as both a control valve and an on-off valve?
Yes. The FCSV1 is designed to function both as a precise control valve for flow regulation and as an on-off valve for full open/close operations. This dual functionality makes it highly versatile and cost-effective across a wide range of industrial applications.
Q
How does the valve's sealing system work and what ensures long-term sealing performance?
Each valve seat and valve core are pair-ground to achieve a precise planar seal. The metal mounting plate's T-slot connection with the valve stem keeps the valve core in a floating state, which self-adjusts to maintain sealing integrity. Additionally, the "live load" packing system maintains constant compression even under significant wear, ensuring reliable long-term sealing.
Q
What industries and media types is the FCSV1 ceramic slide valve best suited for?
The FCSV1 is ideal for coal chemical, salt chemical, petrochemical, ore metallurgy, and waste incineration industries. It is specifically engineered to handle slurries, gas-solid particulate media, and gas-solid-liquid three-phase media under severe erosion conditions — applications where standard metal valves fail prematurely.
Q
How does the ceramic-lined flow passage protect the valve body and downstream piping?
The valve seat re-establishes the flow channel at the center of the pipeline, ensuring fluid passes through the valve centrally rather than impacting the walls. Combined with ceramic-lined flow passages at the flanges, this design dramatically reduces erosion on both the valve body and downstream piping, extending the overall system's operational life.