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China Suppliers Factory FCSV Ceramic Slide Valve for Optimal Sealing in Erosive Conditions
⚙️ 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 — Overview
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 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.
🔵 High-Performance Ceramic Sealing Components
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 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.
🔵 Severe Condition Performance
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.
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
Q
What makes the FCSV1 ceramic slide valve suitable for high-impurity or viscous media?
The FCSV1 features a linear valve core movement with a planar seal design that eliminates sharp turns and stagnation points, minimizing clogging risk. Its self-cleaning function and ceramic-embedded mounting plate ensure reliable performance even with media containing large particles, scaling tendencies, crystallization, or high viscosity.
Q
What ceramic materials are used in the FCSV1 valve, and why are they chosen?
The valve core and seat are made of high-performance structural ceramics such as Y-ZrO₂ (Y-TZP), Al₂O₃ (90%, 95%, 99%), Si₃N₄, and SiC. These materials offer exceptional hardness (up to HRA 94), high compressive strength, excellent corrosion resistance, and superior wear and erosion resistance — significantly extending the valve's operational service life compared to conventional metal components.
Q
Can the FCSV1 ceramic slide valve be used as both a control valve and an on-off valve?
Yes. The FCSV1 is highly versatile and can function as both a throttling/control valve and a full on-off valve. Its linear valve core movement allows precise throttling, full opening, and complete closing, making it adaptable to a wide range of process control requirements.
Q
How does the FCSV1 valve protect downstream piping from erosion?
The valve seat is specifically designed to re-establish the flow channel at the center of the pipeline, ensuring that fluid passes through the center of the valve. This reduces turbulence and direct impingement on the pipe walls, protecting both the valve body and downstream piping from erosion damage and dramatically extending system operational life.
Q
What industries and applications are best suited for the FCSV1 ceramic slide valve?
The FCSV1 is ideal for demanding industrial environments including coal chemical plants (quenching water, black/grey water control), salt chemical plants (lime milk flow control), petrochemical facilities (catalyst particle transport), ore metallurgy (tailings backfill, ore feeding), and waste incineration power plants (limestone slurry atomization). It excels wherever slurry, gas-solid, or three-phase media under severe erosion conditions are present.
Q
What is the "live load" feature and how does it benefit the valve's packing system?
The "live load" is a spring-loaded mechanism integrated into the valve's packing system. It automatically compensates for packing wear by maintaining a constant, consistent load on the packing material over time. This ensures long-term sealing integrity even under significant wear conditions, reducing maintenance frequency and extending the overall service life of the valve's sealing components.