Customization: | Available |
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Structure: | Single End |
Pressure: | High Pressure Mechanical Seals |
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Parameter | Value/Description | Unit/Note | |
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Model | QT-SSic | Silicon Carbide (SiC) mechanical seal ring | |
Material Grade | - Reaction-Bonded SiC (RBSiC) - Sintered SiC (SSiC) |
RBSiC: Higher toughness; SSiC: Higher purity & corrosion resistance | |
Density | 3.0 - 3.2 | g/cm³ | Higher than carbon, lower than metals |
Hardness (HV) | 2200 - 2800 | ≥2200 HV (comparable to tungsten carbide) | |
Flexural Strength | 300 - 500 | MPa | RBSiC: ~300 MPa; SSiC: ~500 MPa |
Thermal Conductivity | 80 - 120 | W/m·K | Efficient heat dissipation for high-speed applications |
Maximum Operating Temperature | 1600°C (inert atmosphere) | Short-term exposure; oxidizes above 1200°C in air | |
Surface Roughness (Ra) | 0.1 - 0.3 | μm | Precision lapped for minimal leakage |
Typical Pairing | - SSic (Stationary) + Carbon Graphite (Rotating) - SSic + SSic (for aggressive media) |
Common in pumps handling abrasives or corrosives | |
Applications | - Petrochemical pumps - Slurry pumps - Hydrocarbon processing |
Ideal for harsh environments where metal or carbon faces fail | |
Advantages | - Extreme wear resistance - Low friction coefficient (~0.1) - High thermal stability |
Reduces maintenance compared to traditional materials | |
Standards | ASTM C273, ISO 13709 (API 682 compliant) | Meets rigorous industry specifications for seal components |