Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of metal seat valve ball in China. If you're going to wholesale cheap metal seat valve ball made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Product Details
As a core rotating sealing element for industrial ball valves, the all-metal hard-sealed valve sphere adopts an integrated metal structure and specialized surface enhancement technology. It is specially developed to solve the sealing failure problem of conventional components in severe working conditions, with outstanding resistance to abrasion, scouring and high-temperature deformation. The product relies on precision spherical molding to achieve a tight fit with the matching sealing components, ensuring stable fluid control performance in long-term continuous operation of heavy industrial equipment.
Performance Parameters
|
Testing Index |
Qualified Data |
|
Dimension Scope |
1/2" to 56" |
|
Pressure Grade |
PN16-PN420(Class150-4500) |
|
Base Alloy Material |
Carbon steel A105N/LF2, austenitic stainless steel 304/316, alloy steel, Hastelloy, Monel alloy, etc. |
|
Surface Alloy Layer |
Stellite, tungsten carbide (WC), chromium carbide (CrC), Inconel, etc. |
|
Concentricity Control |
≤0.05mm |
|
Spherical Form Accuracy |
≤0.02mm |
|
Structural Hardness |
HRC 55+ (Metal Matrix) |
|
Sealing Surface Smoothness |
Ra ≤ 0.4 μm (sealing surface) |
|
Outer Diameter Deviation |
1/2" – 4": +0.03 mm |
|
Inner Diameter Deviation |
1/2" – 4": 0~+0.03 mm |
|
Temperature Range |
-196°C to 1200°C (depending on the material of the sphere and sealing surface) |
Key Benefits
- Integrated metal spherical structure, no elastic material loss, stable mechanical structure
- Precision spherical grinding, consistent fitting clearance, no jamming during rotation
- High-strength alloy surface layer, resists physical wear and chemical corrosion simultaneously
- Withstands high-speed fluid impact, not easy to scratch or deform in particle media
- Adapt to extreme temperature fluctuations, maintain dimensional stability in harsh environments
- Rotating sealing is flexible, reducing the operating torque of the valve assembly
Usage & Scenarios
Fluid Compatibility:
Abrasive mixed fluids, high-temperature gas-liquid media, ultra-low temperature liquids, corrosive chemical fluids
Operating Environments:
High-pressure rotating sealing, long-cycle continuous operation, high-scour fluid pipelines, extreme temperature systems
Target Industries:
Offshore oil engineering, coal mining equipment, metallurgical processing, nuclear power facilities, special fluid equipment
Customer Q&A
What problems can this valve sphere solve for valve assemblies?
It can solve common failures such as sealing wear, rotation jamming, and deformation in harsh environments, greatly improving the service life of the entire valve.
Does the spherical accuracy affect the valve's operating torque?
High-precision spherical surface reduces friction during rotation, which directly lowers the operating torque and makes the valve switch more flexible.
Can this component be matched with all types of ball valves?
It is universally compatible with fixed ball valves, floating ball valves and other industrial ball valve structures, with strong adaptability.
What is the difference between surface alloy layers in use?
Different alloy layers are targeted for high temperature, wear resistance and corrosion resistance, and can be selected according to actual working conditions.
How to judge the replacement cycle of the valve sphere?
Observe the sealing leakage and rotation resistance. Regular inspection of the spherical surface wear can determine the optimal replacement time.
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