Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of fixed valve ball in China. If you're going to wholesale cheap fixed 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 fixed valve ball rigidly secures the ball to the valve body through the upper and lower trunnions (valve stems). The ball only rotates around the axis without axial displacement, and its sealing performance is not affected by fluctuations in medium pressure. It has excellent structural stability, lower operating torque, can withstand the thrust of the medium under high-pressure and large-diameter working conditions, and has excellent anti-erosion and anti-fatigue properties. It is suitable for harsh working conditions with high pressure differentials, large flow rates, and particulate-containing media, and is a dedicated valve ball component for regulation and shut-off control in long-distance oil and gas pipelines, coal chemical industry, power stations, and oil refining units.
Product Specification
|
Indicator Item |
Technical Parameters |
|
Size Range |
1/2" to 60" |
|
Pressure Rating |
PN16-PN420(Class150-4500) |
|
Sphere Material |
Carbon steel A105N/LF2, austenitic stainless steel 304/316, duplex steel F51, F53, alloy steel, Hastelloy, Monel alloy, etc. |
|
Coaxiality |
≤ 0.05mm (coaxiality of the sphere and the trunnion) |
|
Roundness accuracy |
≤0.02mm |
|
Surface hardness |
Sealing surface can reach HRC 55+ (Stellite surfacing) |
|
Surface Roughness |
Ra ≤ 0.4 μm (sealing surface) |
|
Outer diameter tolerance |
2" – 4": +0.03 mm |
|
Inner diameter tolerance |
2" – 4": 0~+0.03 mm |
|
Applicable Temperature |
-196°C to 1200°C (depending on the material of the sphere and sealing surface) |
Product Features
- The upper and lower trunnions are rigidly fixed, with extremely high structural stability
- The sphere only rotates without axial displacement, and the seal is not disturbed by pressure fluctuations
- Lower operating torque, easier and more labor-saving opening and closing
- Capable of withstanding the medium thrust under high-pressure and large-diameter working conditions
- Excellent anti-scour and anti-fatigue performance, longer service life
- Adapted to harsh environments with high pressure differentials, large flow rates, and particulate-containing media
Product Application Scope / Usage Scenarios
Applicable Media:
High-pressure Fluids, High-flow Media, Media Containing Particles
Applicable Working Conditions:
High pressure differential, large diameter, high-pressure and harsh working conditions
Application Area:
Regulation and shut-off control of long-distance oil and gas pipelines, coal chemical industry, power plants, and oil refining units
FAQ
How is the ball of the fixed valve ball fixed?
The sphere is rigidly fixed inside the valve body through the upper and lower trunnions (valve stems).
Will the sealing performance of the fixed valve ball be affected by pressure?
No, the sealing performance is not affected by the medium pressure fluctuations, and it has higher stability.
What working conditions are fixed valve balls suitable for?
Suitable for harsh working conditions with high pressure differential, large flow rate, large diameter, and particulate-containing media.
What are the core advantages of the fixed valve ball?
The core advantages are stable structure, low operating torque, erosion and fatigue resistance, and suitability for high-pressure and harsh environments.
What are the main application areas of fixed valve balls?
Mainly used in long-distance oil and gas pipelines, coal chemical industry, power plants, and oil refining units.
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