Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of hard-sealed valve ball in China. If you're going to wholesale cheap hard-sealed valve ball made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Basic Introduction
The hard-sealed valve ball adopts a metal-to-metal sealing pair structure, and through high-precision CNC machining and surface strengthening treatments such as Stellite surfacing and tungsten carbide spraying, it enhances the wear resistance, corrosion resistance, and high-temperature resistance of the sealing surface. Its sealing reliability depends on machining accuracy and surface hardness, and it can withstand high temperature, high pressure, and erosion by particle-containing media, making it suitable for highly corrosive, high-wear, and harsh temperature conditions. It is the core valve ball component for regulation and shut-off control in the fields of petrochemical, coal chemical, power, metallurgy, and slurry treatment.
Product Specification
|
Indicator Item |
Technical Parameters |
|
Size Range |
1/2" to 56" |
|
Pressure Rating |
PN16-PN420(Class150-4500) |
|
Sphere Material |
Carbon steel A105N/LF2, austenitic stainless steel 304/316, alloy steel, Hastelloy, Monel alloy, etc. |
|
Sealing surface material |
Stellite, tungsten carbide (WC), chromium carbide (CrC), Inconel, etc. |
|
Coaxiality |
≤0.05mm |
|
Roundness accuracy |
≤0.02mm |
|
Surface hardness |
HRC 55+ (Metal Matrix) |
|
Surface Roughness |
Ra ≤ 0.4 μm (sealing surface) |
|
Outer diameter tolerance |
1/2" – 4": +0.03 mm6" – 12": +0.05 mm |
|
Inner diameter tolerance |
1/2" – 4": 0~+0.03 mm6" – 12": 0~+0.05 mm |
|
Applicable Temperature |
-196°C to 1200°C (depending on the material of the sealing surface) |
Product Features
- Metal-to-metal sealing pair, with a stable structure and long service life
- High-precision CNC machining, with high precision of sealing surface and tight fit
- After surface strengthening treatment, wear resistance, corrosion resistance, and high temperature resistance performance is outstanding
- Can withstand high temperature and high pressure conditions, and adapt to harsh pipeline environments
- Resistant to erosion by particle-containing media and has strong wear resistance
- High sealing reliability, suitable for cut-off and regulation in harsh working conditions
Product Application Scope / Usage Scenarios
Applicable Media:
Strongly Corrosive Media, High Temperature and High Pressure Fluids, Particle-Containing Media, Slurries
Applicable Working Conditions:
harsh conditions such as high temperature, high pressure, high wear, and strong corrosion
Application Area:
Regulation and shut-off control in the fields of petrochemical, coal chemical, power, metallurgy, and slurry treatment
FAQ
What sealing structure does the hard-sealed valve ball adopt?
Adopts a metal-to-metal sealing pair structure.
Through which processes can the performance of hard-sealed valve balls be improved?
Through high-precision CNC machining, as well as surface strengthening treatments such as Stellite surfacing and tungsten carbide spraying.
Can a hard-sealed valve ball be used for media containing particles?
Yes, it has good anti-scour ability and is suitable for working conditions with particulate media.
What are the main Application Areas of hard-sealed valve balls?
Mainly used in the fields of petrochemical, coal chemical, power, metallurgy, and slurry treatment.
What are the core advantages of hard-sealed valve balls?
The core advantages are high temperature resistance, high pressure resistance, strong corrosion resistance, and high wear resistance, ensuring reliable sealing under harsh operating conditions.
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