Zhejiang Jigong Valve Co., Ltd. is one of the most reliable manufacturers and suppliers of valve stem ball in China. If you're going to wholesale cheap valve stem ball made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Basic Introduction
This one-piece stem integrated valve ball is a high-precision custom core component engineered for modern flow control systems. Adopting integral forging and synchronous precision machining design, the valve ball and operating stem are molded as a unified whole, avoiding the defects of traditional split assembly such as fit clearance, running loose and torque loss. It delivers steady power transmission and repeatable positioning accuracy even under cyclic vibration and frequent switching cycles. With outstanding mechanical rigidity and structural integrity, it adapts perfectly to complex automated pipeline systems and continuous process production environments, widely deployed in water treatment, pharmaceutical manufacturing, environmental protection facilities and precision fluid regulation projects.
Product Specification
|
Indicator Item |
Technical Parameters |
|
Size Range |
1/2" to 36" |
|
Pressure Rating |
PN10-PN160(Class150-900) |
|
Sphere Material |
Carbon steel A105N/LF2, austenitic stainless steel 304/316, alloy steel, Monel alloy, etc. |
|
Valve Stem Material |
Same material as the sphere or high-strength alloy steel (such as F6a, 410 stainless steel) |
|
Coaxiality |
≤ 0.05mm (coaxiality of sphere and valve stem) |
|
Roundness accuracy |
≤0.02mm |
|
Surface Roughness |
Ra ≤ 0.4 μm (sealing surface of the sphere), Ra ≤ 1.6 μm (mating surface of the valve stem) |
|
Outer diameter tolerance |
1/2" – 4": +0.03 mm |
|
Inner diameter tolerance |
1/2" – 4": 0~+0.03 mm |
|
Applicable Temperature |
-196°C to 600°C (depending on material combination) |
Product Features
- Integral forging forming design, overall mechanical rigidity far exceeds split structure
- Synchronous transmission design, stable angle positioning without angular deviation
- No assembly clearance inside the component, effectively avoiding medium erosion and internal leakage
- Strong cyclic load resistance, stable operation under long-term vibration environment
- Match electric, pneumatic and hydraulic actuators for intelligent pipeline management
- Simplified structural layout, lowering later inspection and maintenance workload
Product Application Scope / Usage Scenarios
Applicable Media:
Low-temperature cryogenic medium, high-temperature hot fluid, urban water supply, chemical corrosive medium
Applicable Working Conditions:
Cyclic frequent operation, continuous uninterrupted working, pipeline vibration environment, precise flow regulation
Application Area:
Water supply & drainage projects, pharmaceutical fine chemical, waste gas and wastewater treatment, pipeline automatic control system
FAQ
What manufacturing process is adopted for this integrated valve ball?
It adopts integral die forging combined with CNC overall finishing, ensuring one-piece structure and high dimensional consistency.
Which actuator types can this valve ball be matched with?
It can be perfectly adapted to electric, pneumatic and hydraulic actuators to realize remote automatic control.
Why is the integral stem structure more reliable than ordinary split type?
It eliminates hidden troubles such as assembly gap and loose rotation, and keeps long-term stability under vibration and frequent start-stop.
Can we customize special materials for extreme temperature working conditions?
Yes, we can customize special alloy materials and surface strengthening treatment for ultra-low temperature and high temperature working scenarios.
Does the one-piece structure need frequent daily maintenance?
The integrated structure has no vulnerable connecting parts, with low daily maintenance frequency and long stable service cycle.
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