Yongjia Tong Ball Valve Co., Ltd.: Your Professional Plated Valve Balls Manufacturer!

 

Founded in 2009, Tong Ball Valve Co., Ltd. is a national high-tech enterprise specializing in precision valve balls for severe service applications. We provide reliable solutions for global industrial valve manufacturers through advanced material processing, precision machining, and surface coating technologies. With strict quality control and full production traceability, our products are widely used in oil & gas, petrochemical, power generation, and other demanding industries worldwide.

 
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Why choose us?

Advanced materials & surface engineering

We specialize in difficult-to-machine materials including duplex stainless steel, titanium, Inconel, zirconium, and engineering ceramics. Combined with HVOF, plasma spray, DLC/TiN coating, and laser cladding technologies, our valve balls deliver excellent wear resistance, corrosion resistance, and long-term sealing performance.

Experienced technical support & global supply

Supported by a technical team with over 30 years of industry experience, we offer customized valve ball solutions based on different application requirements. As an authorized supplier for global companies including Emerson and Flowserve, our products have been exported to more than 20 countries and regions

Precision manufacturing for severe service

Our machining accuracy reaches roundness ≤0.001 mm, supporting stable sealing performance under high pressure, high temperature, and corrosive working conditions. Products are validated through rigorous cycle testing to ensure durability and operational reliability.

Strict quality control & full traceability

From raw material inspection to final testing, every production process follows strict quality standards. We provide 100% inspection and complete production traceability, helping customers reduce quality risks and improve supply chain confidence.

 

Product Specifications

 

Electroless Nickel 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

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

 

Application of Plated Valve Balls

Oil & gas

Plated balls perform reliably in valves handling abrasive drilling fluids, crude oil, and sour hydrocarbon gases.

Industrial manufacturing

Used in hydraulic manifolds, automated assembly equipment, and systems that require rapid, quarter-turn, leak-proof shut-offs.

Automotive

Found in fuel systems, refrigeration valves, and transmission lines where tight tolerances and fluid durability are required.

Residential & commercial plumbing

Chrome-plated brass or steel balls are standard in household water fixtures, dishwashers, and main shut-off valves because they combine corrosion resistance with a cost-effective design.

 

Packaging and Shipping

 

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productcate-716-385

 

Certifications

 

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FAQ

 

Q: What common plating materials are used?

A: Popular plating options include chrome, nickel and hard anodized coating; each layer is selected to boost surface hardness, smoothness and anti-corrosion performance for different working environments.

Q: How does plating affect surface smoothness?

A: Professional plating and post-polishing create an ultra-smooth surface, which enables tighter contact with valve seats and effectively lowers the risk of fluid leakage during operation.

Q: Can the plating layer resist corrosion and oxidation?

A: The dense plating layer isolates the base metal from air and corrosive media, preventing rust and chemical erosion even in humid or slightly corrosive working conditions.

Q: Do plated valve balls fit standard ball valves?

A: Most plated valve balls follow standard dimensions and bore sizes, so they are fully compatible with regular ball valve structures and can be used as direct replacement parts.

Q: Are plated valve balls suitable for frequent switching?

A: Thanks to enhanced surface hardness and low friction coefficient, they withstand repeated rotation and friction well, maintaining stable performance for long-term frequent use.

Q: How to maintain plated valve balls properly?

A: Avoid hard impurities in the fluid to prevent scratching the coating, check the surface regularly for damage, and use compatible lubricants to keep rotation smooth and protect the plating layer.

With abundant machining experience, we are one of the most professional plated valve balls manufacturers in China. We warmly welcome you to buy plated valve balls at competitive price from our factory. If you have any enquiry about cooperation, please feel free to email us.

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