| Titanium Nitride Coated Valve Balls | ||
| Size Range | 1/2" to 56" (Custom sizes available) | |
| Pressure Rating | PN10-PN420 (Class150-2500) | |
| Body Material | A105, A350 LF2, A182 F304, A182 F316, A182 F321, A182 F51, A182 F53, A182 F55, A182 F60, A182 F44, A564 630 (17-4PH) INCONEL625, INCONEL718, INCONEL825, Monel 400, Monel 500 etc |
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| Core Process/Coating | ENP,HCR,STL6, STL12, STL20,Cr3C2, WC-Co, WC-Cr3C2-Ni, TiC-NiMo, SiC, CrC,ZrO2, Al2O3, Cr2O3, ZnO, TiO, Al2O3-TiO2,STL1, STL6, STL12,Ni60, Ni55, Ni45 etc. | |
| Operating Temperature Range | ≤1200°C | |
| Parameter Category | Core Technical Parameters | Standards for Determining Advanced Technological Level |
| Machining ball accuracy | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Processing ball Roundness | ≤ 0.025 mm | ≤ 0.011 mm (Micron-Level ) |
| Balls concentricity | ≤ 0.025 mm | ≤ 0.005 mm (Ultra-High Precision) |
| Other supplements | ≤ 0.4 μm | ≤ 0.1 μm (Mirror-Level) |
| Parameter Category | Core Technical Parameters | Criteria for High-End Technical Level |
| Coating Thickness Control | Thickness Uniformity | Thickness deviation at any spherical position ≤±8% (stricter than the general ±10% standard) |
| Thickness Tolerance Range | 100 - 300 μm (common range for wear-resistant layers); special ranges can be noted. No missed spraying for ultra-thin coatings (<10μm) | |
| Coating Adhesion Performance | Surface Hardness | HV 1300+ |
| Bond StrengthBond Strength | ≥80 MPa | |
| Interface PorosityInterface Porosity | <0.5% | |
| Coating Surface Quality | Surface Roughness (Ra) | ≤0.2 µm |
| Spraying Accuracy (Positioning & Coverage) | Spraying Positioning Accuracy | ±0.1mm |
Core Products: An Advanced Hard Coating Combining Decorative Appeal and Functionality
Titanium Nitride (TiN) coating is formed through vacuum ion plating technology. Its ultra-thin (typically 1-5 microns) yet extremely hard and dense nature provides revolutionary surface enhancement for valve balls.
Exceptional Surface Hardness & Wear Resistance
The surface hardness of our Titanium Nitride Coated valve Balls can exceed Hv 2000. This super-hard "overcoat" effectively resists fretting wear, scratching, and mild erosion from particulate media. It is particularly suitable for Nitride coated precision balls used in control valves requiring frequent fine-tuning or cycling, ensuring the ball surface remains pristine after long-term operation, maintaining a stable flow coefficient (Cv) and precise regulating performance.
Outstanding Chemical Inertness & Corrosion Resistance
TiN coating is chemically very stable, offering good resistance to atmosphere, water vapor, various organic solvents, and weak acids/alkalis. This makes the Corrosion-resistant TiN coated valve ball an ideal choice for industries with stringent cleanliness and corrosion resistance demands, such as food & beverage, pharmaceuticals, and bioengineering. It effectively prevents pitting or ion leaching from the ball substrate (e.g., stainless steel), ensuring media purity.
Signature Decorative Effect & Low Friction Coefficient
The distinctive, durable golden color of titanium nitride makes it a Decorative and hard coating ball that combines high performance with a premium visual identifier. This not only enhances the product's visual appeal but its very low friction coefficient (typically below 0.2) also significantly reduces valve operating torque and wear on seals, benefiting valves designed for sensitive operation or low torque requirements.
Perfect Surface for High-Precision Demands
The PVD coating process operates at low temperatures (typically <500°C), preventing thermal distortion of precision-machined balls. Our Nitride coated precision ball retains its original micron-level geometric accuracy and mirror-grade surface finish (Ra < 0.05 μm) after coating, making it the preferred core component for high-end instrument valves, sampling valves, and valves in precision experimental setups.
Technical Focus: Low-Temperature PVD Process for Nanoscale Dense Coatings
The exceptional properties of Titanium Nitride coatings stem from their amorphous/nanocrystalline microstructure, entirely dependent on advanced low-temperature PVD process control.
Cathodic Arc Evaporation & Precise Parameter Control:
We employ cathodic arc evaporation technology. In a high-vacuum reaction chamber, titanium target material is evaporated by an arc and reacts within a nitrogen plasma environment, depositing TiN onto the valve ball surface. By precisely controlling arc current, bias voltage, nitrogen partial pressure, and workpiece rotation, we ensure uniform coating thickness, dense structure, and superior adhesion.
Designable Coating Composition & Structure:
By adjusting process parameters or introducing other elements (e.g., Aluminum, Chromium), we can prepare superior composite coatings like TiAlN or TiCN to further enhance hardness, oxidation temperature, or reduce friction coefficient for more specific service needs.
Fully Automated Uniform Coating Assurance:
We utilize specialized planetary fixturing to ensure the valve balls undergo complex revolution and rotation during coating. This guarantees absolutely uniform thickness and consistent performance at every point on the ball's surface, with no dead angles.
Why Choose TongBall's Titanium Nitride Coated Valve Balls?
An Innovator Introducing High-End Surface Tech to Industrial Fluid Handling:
We are a pioneer in systematically applying top-tier PVD coating technology-commonly used for cutting tools and molds-to valve core components, offering customers a surface solution that surpasses traditional thermal spray or plating options.
Coating Experts Mastering the "Thin Layer, Major Impact" Principle:
We understand and control the technical know-how for achieving dramatic performance changes with micron-level thickness. Our TiN coating solution delivers a comprehensive upgrade in hardness, wear/corrosion resistance, aesthetics, and low friction with minimal dimensional impact.
Focused on Enhancing Valve Added Value & System Compatibility:
Our coating solution enhances not only the performance of the individual component but also the integrated performance and brand image of the entire valve within clean systems, corrosive environments, or precision circuits.
When Valve Performance Demands Surface Enhancement Beyond Convention
If your application requires valve performance exceeding conventional standards in corrosion resistance, operational smoothness, media cleanliness, or product appearance, then a Titanium Nitride coating based on advanced PVD technology may be the elegant and efficient solution you seek. It provides not just protection but also a distinctive performance identity and value extension for the component.
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