| Eccentric Ball valve Balls | ||
| Size Range | 1/2" to 56" (Custom sizes available) | |
| Pressure Rating | PN10-PN420 (Class150-2500) | |
| Body Material | A216 WCB, A352 LCB A351,CF8/CF8M/CF3/CF3M, A890 4A/5A/6A, Monel,Hastelloy C,Inconel 625 | |
| Core Process/Coating | (High-Cr Fe/WC), (HVOF) Cr3C2-NiCr, (Stellite 6/12) | |
| Operating Temperature Range | ≤550°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 Product Focus: Eccentric Valve Balls
Our expertise extends to designing and manufacturing high-integrity eccentric balls that meet the most demanding standards, including API 6D.
API 6D Eccentric Ball Valve Balls
Manufactured in full compliance with API 6D specifications, these balls guarantee the performance, material integrity, and dimensional accuracy required for pipeline and process service valves. They are the benchmark for reliability in the oil, gas, and petrochemical industries.
Material-Specific Solutions
We produce eccentric balls in grades tailored to your fluid media and pressure-temperature requirements:
316L Eccentric Ball Valve Balls: Offering excellent corrosion resistance for chemical, marine, and high-purity applications.
Steel Eccentric Ball Valve Balls: Designed for strength and durability in high-pressure industrial services.
Standard Steel Ball Valve Balls: For general-purpose applications requiring robust performance.
The Eccentric Advantage
The unique offset design of the Eccentric Ball minimizes friction during operation, eliminating seal rubbing and dramatically extending valve life. This design is pivotal for achieving bubble-tight sealing and precise flow modulation.
Technical Distinction in Eccentricity
Precision in eccentricity is not just a measurement-it's a performance guarantee. Our manufacturing process ensures exacting control over the offset axis, leading to:
Zero-Friction Sealing:
The cam-action effect prevents seat wear during opening and closing cycles.
Enhanced Durability:
Optimal stress distribution across the ball and stem connection.
Consistent Performance:
Repeatable, reliable operation even after thousands of cycles.
Why Partner with TongBall for Eccentric Balls?
Specialized Precision: We don't just make balls; we engineer critical eccentric components that define valve functionality.
Standards-Driven Manufacturing: Our API 6D Eccentric Ball production follows rigorous quality protocols, ensuring global compliance and interoperability.
End-to-End Expertise: From selecting the right alloy (like 316L or specific Steel grades) to final precision grinding and inspection, we manage the entire process for uncompromised quality.
Seeking a trusted source for high-performance eccentric ball valve components?
Whether your project calls for standard Steel ball valve balls or specialized Eccentric Ball valve balls to API 6D, TongBall provides the precision, material science, and technical partnership to elevate your valve's performance.
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