TongBall Titanium Oxide Coated Valve Balls is engineered for highly corrosive and erosive environments. Formed via high-velocity plasma spraying, the dense Rutile-phase TiO₂ coating achieves a hardness exceeding HRA 85 and provides outstanding corrosion resistance. It maintains stable performance in concentrated acids, alkalis, and electrochemical media, making it an ideal alternative to special stainless steels in demanding applications such as chlor-alkali processing and hydrometallurgy where both corrosion and solid particle wear are prevalent.
| Size Range | 1/2" to 56" (Custom sizes available) |
| Pressure Rating | PN10-PN420 (Class150-4500) |
| Ball Material | F304, 1.4301, F316,1.4401, A105, F51/53/F55/F60/F44, 17-4PH, Inconel 625/718/825, Monel 400/500,K-500 etc. |
| Core Process/Coating | Rutile TiO₂ (High Velocity Plasma Sprayed) |
| Operating Temperature Range | ≤600°C |
| Core Technical Parameters | Criteria for High-End Technical Level |
| Thickness Uniformity | Thickness deviation at any spherical position ≤±8% |
Thickness Tolerance Range | 100 - 500 μm. For ultra-thin coatings (<10 μm): Zero missed-spray allowed |
| Surface Hardness | HRA 85-90 |
| Bond Strength | ≥55 MPa |
| Adhesion Class | Class 0 per GB/T 9286 (Cross-cut Test). No peeling is allowed. |
| Interface Porosity | <2% |
| Surface Roughness (Ra) | ≤0.5 µm |
| Surface Defect Rate | ≤0.1 defects per m² ; no cracks or bubbles |
| Spraying Positioning Accuracy | ±0.1mm |
| Edge Coverage | No edge warping or shrinkage; 100% coverage |
YONGJIA TONG BALL VALVE CO.,LTD.
Anfeng Industrial zone, Oubei Town Wenzhou China
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