Industrial Valve Balls
Surface-Coated Valve Balls
Advanced surface engineering solutions including hard chrome, ENP, tungsten carbide and Stellite coatings for superior wear resistance and extended service life in demanding industrial valve applications.
Hard Chrome
Excellent wear resistance with HV 850+ hardness rating.
ENP Coating
Uniform thickness with superior corrosion protection.
Tungsten Carbide
Ultra-hard coating for extreme wear applications.
Stellite
Cobalt alloy overlay for severe service conditions.
Surface Coating Solutions
Industrial Surface-Coated Valve Balls
We manufacture precision surface-coated valve balls for oil & gas, petrochemical, LNG, power generation and industrial automation systems. Our coated valve balls are engineered for enhanced wear resistance, corrosion protection and extended service life.
Coating Technologies
Product Categories
Explore our comprehensive range of surface-coated valve balls for industrial flow control and process automation applications.
Hard Chrome Plated Valve Ball
Precision electroplated chromium coating providing excellent hardness and wear resistance for general service applications requiring smooth surface finish.
- • HV 850+ hardness rating
- • Smooth surface finish
- • Excellent wear resistance
- • Cost-effective solution
Tungsten Carbide Valve Ball
Ultra-hard tungsten carbide coating applied via HVOF process for extreme wear resistance in abrasive media and high-pressure applications.
- • Extreme hardness HV 1200+
- • Superior abrasion resistance
- • HVOF spray technology
- • High bond strength
Technical Guide
Surface Coating Technology & Advantages
Understanding surface coating processes, material compatibility and performance characteristics is essential for selecting the right coating solution.
Coating Thickness
Precision coating thickness control from 20μm to 200μm depending on application requirements and wear protection needs.
Surface Hardness
Achieve surface hardness from HV 600 to HV 1500 through various coating technologies for different wear requirements.
Bond Strength
Excellent coating-substrate bonding ensures reliable performance even under high-pressure and thermal cycling conditions.
Coating Process
Surface Preparation
Cleaning and surface activation for optimal adhesion.
Coating Application
Precision spraying or electroplating process.
Quality Inspection
Thickness measurement and hardness testing.
Final Finishing
Lapping and polishing for sealing surfaces.
Custom Coating Solutions
Need a specific coating thickness or custom material combination? Our engineering team can develop tailored surface solutions for your demanding application requirements.
Explore Our Coated Valve Balls
Discover our comprehensive range of surface-coated valve balls featuring advanced spray technologies. Each product provides exceptional wear resistance and extended service life for demanding industrial applications.
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![Hardfaced Valve Balls]()
Hardfaced Valve BallsHard-surface valve balls are coated with high-performance cemented carbide layers (such as Stellar alloys, tungsten carbide, chromium carbide, etc.) on the sealing surfaces of the sphere substrate
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![Hard Chrome Plated Valve Ball]()
Hard Chrome Plated Valve BallHard chrome-plated valve balls adopt precision electroplating technology to deposit a dense high-hardness chromium protective layer on the metal substrate surface.
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![Chromium Carbide (CRC) Valve Ball]()
Chromium Carbide (CRC) Valve BallChromium carbide valve balls are high-performance sealing spheres for industrial ball valves, which adopt advanced surface modification technology to deposit a dense chromium carbide (CrC) hardened
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![Stellite Overlay Welded (STL) Valve Ball]()
Stellite Overlay Welded (STL) Valve BallStellite surfacing valve balls are high-performance valve balls with Stellite cobalt-based hard alloy surfaced on the surface of the metal substrate.
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![Inconel Alloy Valve Ball]()
Inconel Alloy Valve BallInconel alloy valve balls, with Inconel series superalloys (such as Inconel 625/718/825) as the base or sealing surface material, possess excellent high-temperature, high-pressure, strong corrosion
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![Tungsten Carbide (TCC) Valve Ball]()
Tungsten Carbide (TCC) Valve BallThe tungsten carbide valve ball is coated with a tungsten carbide (WC) hard layer on the substrate surface through supersonic spraying or surfacing welding processes, with a surface hardness reaching
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![Electroless Nickel Plated (ENP) Valve Ball]()
Electroless Nickel Plated (ENP) Valve BallElectroless Nickel Plating (ENP) valve balls use an electroless plating process to form a nickel-phosphorus alloy layer with uniform thickness, high hardness, and strong corrosion resistance on the
Surface Coating Technologies
Advanced surface engineering solutions for enhanced wear resistance, corrosion protection and extended service life in demanding industrial valve applications.
Hard Chrome Plating
Precision electroplated chromium coating providing excellent hardness and wear resistance for general service applications.
Electroless Nickel
ENP coating with uniform thickness, excellent corrosion resistance and self-lubricating properties for chemical processing applications.
Tungsten Carbide
Ultra-hard WC coating applied via HVOF for extreme wear resistance in abrasive media and high-pressure applications.
Chromium Carbide
CrC coating for superior oxidation resistance and mechanical stability at elevated temperatures up to 1000°C.
Stellite Overlay
Cobalt-based Stellite alloy welded overlay for severe service applications requiring maximum wear and corrosion resistance.
HVOF Spraying
High-Velocity Oxy-Fuel thermal spray process delivering dense, well-bonded coatings with minimal porosity.
FAQ & Engineering Guide
Common Coating Questions
What is the difference between HVOF and plasma spraying?
HVOF (High-Velocity Oxy-Fuel) spraying uses a supersonic flame to propel coating particles, resulting in denser coatings with higher bond strength compared to plasma spraying. Plasma spraying operates at higher temperatures, making it suitable for materials with high melting points.
What coating thickness do you recommend?
Coating thickness depends on your specific application requirements. For general wear protection, 20-50μm is typical. For severe abrasion applications, 100-200μm thickness may be required. Our engineering team can provide recommendations based on your operating conditions.
How do I choose between Stellite overlay and tungsten carbide?
Stellite overlay is ideal for applications requiring both wear and corrosion resistance in high-temperature environments (up to 1000°C). Tungsten carbide provides the highest hardness (HV 1200+) and is best suited for extreme abrasion resistance in lower temperature applications.
