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Titanium Oxide Ceramic Sprayed Valve Balls

Special Coating Valve balls

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 Range1/2" to 56" (Custom sizes available)
Pressure RatingPN10-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/CoatingRutile TiO₂ (High Velocity Plasma Sprayed)
Operating Temperature Range≤600°C
Core Technical ParametersCriteria for High-End Technical Level
Thickness UniformityThickness deviation at any spherical position ≤±8% 

Thickness Tolerance Range

100 - 500 μm. For ultra-thin coatings (<10 μm):

Zero missed-spray allowed

Surface HardnessHRA 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



Titanium Oxide Ceramic Sprayed Valve Balls
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YONGJIA TONG BALL VALVE CO.,LTD.

Anfeng Industrial zone, Oubei Town Wenzhou China

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