01
China Suppliers Factory Direct Angle Valve - High-Quality Ceramic Angle Valve for Optimal Flow Control
⚙️ FCAV Ceramic Angle Valve
⚠️ Liquids that are both flash-prone and corrosive present particular challenges. For example, flash steam in steel valves induces both corrosion and erosion of the soft oxide layer generated by corrosion, producing damage greater than either mechanism alone. In such cases, structural ceramics with inherent corrosion and wear resistance provide an excellent solution.
The main sealing pair and the fixed circular plate seat of the ceramic angle valve are made of high-performance structural ceramic materials, providing excellent wear resistance, corrosion resistance, and erosion resistance, significantly extending the valve's service life.
With a simple and compact structure, the valve features low operating torque, is not prone to jamming, and has a self-cleaning function. There is no high-frequency vibration between the valve core and the seat, effectively avoiding the high-frequency vibration noise issue found in traditional linear stroke plunger angle valves, as well as preventing scratching and sticking between the valve core and the sealing seat.
🔩 Structural Characteristics
- ✔ Both the valve core and seat have flow channels, creating a planar seal at the edges of the valve core and seat flow channel holes. The valve core rotates relative to the seat to achieve throttling, opening, and closing of the fluid.
- ✔ The valve is quarter-turn, allowing for direct installation of quarter-turn actuators. This significantly reduces the overall dimensions compared to linear actuators, thereby reducing the valve's installation space.
- ✔ Each valve seat and valve core are paired and ground to ensure the valve's sealing performance.
- ✔ The valve core and seat are always in close contact, preventing high-frequency vibration and avoiding valve core fracture due to such vibrations.
- ✔ The valve core and seat are made of structural ceramics, and the remaining flow channels are lined with ceramics, providing excellent corrosion, wear, and erosion resistance, greatly extending the valve's service life.
- ✔ A wide spiral wound gasket is set within the mortise and tenon seal structure, ensuring zero leakage of the casing under pipeline stress or cyclic thermal stress.
- ✔ The packing box is equipped with a "live load" that maintains a constant load even under high wear conditions, ensuring long-lasting packing 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
Media with both flashing and corrosive properties are particularly troublesome. Reducing the speed of erosive fluids and selecting valves with minimal changes in fluid direction can minimize particle impact. Ceramic angle valves have excellent erosion resistance, corrosion resistance, and cavitation resistance, enhancing valve service life and ensuring long-term stable operation.
🔷 Coal Chemical Industry
- ▶ Black water angle valve.
🔷 Hydrometallurgy
- ● Discharge pipeline from high-pressure leaching autoclave to flash tank.
- ● Exhaust pipeline from high-pressure leaching autoclave.
- ● Pipeline from flash tank to adjustment tank.
- ● Controls high-pressure autoclave pressure and slurry discharge volume.
❓ Frequently Asked Questions
Q
What makes the FCAV Ceramic Angle Valve superior to traditional steel valves in corrosive and flash-prone environments?
Unlike steel valves, which suffer from simultaneous corrosion and erosion when exposed to flash steam — resulting in compounded damage — the FCAV Ceramic Angle Valve uses high-performance structural ceramic materials for its main sealing pair and fixed circular plate seat. These ceramics offer inherent corrosion resistance, wear resistance, and erosion resistance, effectively eliminating the dual-damage mechanism seen in steel valves and significantly extending service life.
Q
How does the quarter-turn design of the FCAV Ceramic Angle Valve benefit installation and operation?
The quarter-turn design allows direct installation of compact quarter-turn actuators, which are significantly smaller than linear actuators. This reduces the overall valve assembly dimensions, saves installation space, and simplifies maintenance. The rotation-based actuation also results in low operating torque and eliminates the risk of jamming.
Q
What sealing technologies are used in the FCAV Ceramic Angle Valve to prevent leakage?
The valve employs a mortise and tenon seal structure with a wide spiral wound gasket, ensuring zero leakage of the casing even under pipeline stress or cyclic thermal stress. Additionally, each valve seat and core are individually paired and precision-ground to guarantee sealing performance. The packing box features a "live load" mechanism that maintains constant pressure under high-wear conditions, ensuring long-lasting packing integrity.
Q
Which ceramic materials are used in the FCAV Ceramic Angle Valve, and how do they compare in performance?
The valve utilizes high-performance structural ceramics including Y-TZP (Y-ZrO₂), M-PSZ (Mg-ZrO₂), Al₂O₃ (90%, 95%, 99%), Si₃N₄, and SiC. These materials offer hardness ratings of HRA 85–94, flexural strengths up to 1200 MPa, and compressive strengths up to 2800 MPa, far exceeding common ceramics and standard steel. They also exhibit near-zero water absorption and excellent corrosion resistance across a wide range of chemical media.
Q
In which industries and applications is the FCAV Ceramic Angle Valve most commonly used?
The FCAV Ceramic Angle Valve is widely used in the Coal Chemical Industry (e.g., black water angle valves) and Hydrometallurgy. Specific applications include discharge pipelines from high-pressure leaching autoclaves to flash tanks, exhaust pipelines from high-pressure leaching autoclaves, pipelines from flash tanks to adjustment tanks, and systems that control high-pressure autoclave pressure and slurry discharge volume.
Q
How does the FCAV Ceramic Angle Valve eliminate high-frequency vibration noise compared to traditional plunger angle valves?
Traditional linear stroke plunger angle valves are prone to high-frequency vibration between the valve core and seat, which generates noise and can cause valve core fracture or scratching of sealing surfaces. The FCAV Ceramic Angle Valve keeps the valve core and seat in constant close contact through its rotational design, eliminating relative vibration. This prevents high-frequency noise, protects the ceramic sealing surfaces, and avoids sticking or damage between the core and seat.