Yongjia Tong Ball Valve Co., Ltd.: Your Professional 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.
Benefits of Valve Balls
Quick and easy operation
Thanks to their 90-degree turn mechanism, ball valves provide fast shut-off and opening. The design ensures minimal torque is required, which is ideal in emergency situations or automated systems.
Tight sealing with minimal leakage
Ball valves are known for excellent sealing performance. The spherical closure element creates a secure, leak-tight seal even after long periods of inactivity — especially when paired with high-quality seats like PTFE.
Long service life and durability
Because of their robust design and fewer moving parts, ball valves generally experience less wear over time. This contributes to longer service life and lower maintenance costs.
Versatility in materials and applications
Ball valves are available in a range of materials including brass and stainless steel. This makes them suitable for a wide range of fluids, from water and air to gas, oil, and corrosive chemicals.
Low pressure drop
When fully open, ball valves offer a straight-through flow path, reducing turbulence and pressure loss across the valve. This makes them highly efficient in systems where maintaining flow rate is critical.
Compact design and easy installation
Ball valves are compact and lightweight compared to other valve types, which simplifies installation — especially in tight spaces or complex piping layouts.
Product Specifications
|
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 Valve Balls
Household equipment ball valves
Ball valves are extensively used in residential plumbing systems to enable main water and branch shutoffs during leaks. They are also used in standard household devices like water taps, showers, heaters, and washing machines.
Ball valves and hose for gardening
Ball valves can be used in a garden to meet various watering needs. These valves can be attached to garden hoses, watering tools, sprinkler lines, or faucets. Switch off the main water supply while installing the ball valve to the main water line. Connect one port of the ball valve to the main water supply. Screw the garden hose fitting to the other port of the ball valve. Turning the handle to open or close the valve can start or stop the water flow through the hose.
Refrigeration ball valves
Ball valves can be used as shut-off valves in refrigeration, commercial HVAC, and individual air conditioner units. The design, sealing material, and welding should support a safe construction that suits the most demanding requirements, like a high working pressure when operated with refrigerants like R410A. Read our article on solenoid valves for HVAC-R for more details on the refrigeration and air conditioning working processes and the valves required.
Ball valves in the oil and gas industry
Ball valves are commonly used as fluid shutoff valves in onshore and offshore oil and gas production facilities. They are also used in fuel gas system feeding furnaces. Ball valves are designed to control the flow of high-pressure gasses and liquids with minimal pressure drop. They have a very low response time which means they are quick to open and close, and these valves have a tight-sealing capability with low torque. Ball valves can be used in various remote locations within petrochemical industries as these valves are versatile and easy to operate and repair.
Packaging and Shipping
Certifications
FAQ
With abundant machining experience, we are one of the most professional valve balls manufacturers in China. We warmly welcome you to buy valve balls at competitive price from our factory. If you have any enquiry about cooperation, please feel free to email us.
