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Help Center2205 Duplex Stainless Steel Ball Valve Compliant With CB/T3191 Standard, Flanged End
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As a professional manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves. Our 2205 Duplex Stainless Steel Ball Valve, compliant with the CB/T3191 standard and featuring flanged ends, is engineered to meet the demanding requirements of modern fluid control systems. This valve combines exceptional corrosion resistance with high strength, offering a reliable and durable solution for critical applications across various industries. With an annual export value ranging between US$1 Million and US$1.5 Million, we have built a strong reputation for quality and reliability, serving markets globally from North America to Southeast Asia.
The core of this valve is its construction from 2205 duplex stainless steel. This material offers a superior blend of properties:
- Enhanced Corrosion Resistance: Particularly against chloride-induced stress corrosion cracking, making it ideal for harsh environments.
- High Mechanical Strength: Approximately double the yield strength of standard austenitic stainless steels like 304 or 316, allowing for lighter or more pressure-resistant designs.
- Good Fabricability: Despite its strength, it maintains good weldability and formability.
The flanged end design ensures secure and leak-proof connections to piping systems, facilitating easier installation, maintenance, and replacement. Compliance with the CB/T3191 standard guarantees that the valve meets specific technical and performance criteria established for marine and industrial valves in China, assuring buyers of its standardized quality and interoperability.
Key Technical Specifications & Advantages:
| Feature | Description & Benefit |
|---|---|
| Primary Material | 2205 Duplex Stainless Steel (UNS S32205). Provides excellent resistance to corrosion, erosion, and high pressure. |
| Sealing Mechanism | Precision-engineered seats and seals (options include PTFE, reinforced PTFE, or metal). Ensures tight shut-off and long service life. |
| Operation | Manual handwheel or optional actuation (electric, pneumatic). Offers flexible control. |
| Flow Characteristics | Full-port or standard-port design available. Minimizes pressure drop for efficient fluid transfer. |
| Pressure & Temperature Rating | Specific ratings are customizable based on client requirements and valve size. |
Benefits for Your Operations:
- Extended Service Life: The duplex steel's durability reduces maintenance frequency and replacement costs.
- Reliability in Critical Systems: Suitable for applications in chemical processing, offshore oil & gas, marine, pulp & paper, and desalination plants where failure is costly.
- System Integrity: Flanged connections and robust construction help maintain system pressure and prevent leaks.
- Global Compliance: Adherence to CB/T3191 and manufacturing under an ISO9001 system ensures a product that meets international quality expectations.
Frequently Asked Questions (FAQ):
-
What distinguishes 2205 duplex stainless steel from 316L stainless steel?
2205 duplex steel has a mixed microstructure of austenite and ferrite, giving it roughly twice the yield strength and significantly better resistance to stress corrosion cracking, especially in chloride environments, compared to austenitic 316L. -
Is this valve suitable for seawater or high-chloride media?
Yes, the 2205 material is highly recommended for such applications due to its superior resistance to pitting and crevice corrosion in chloride-containing solutions. -
What flange standards are compatible with this valve?
The flanged ends are typically manufactured to common international standards such ASME B16.5, EN, or JIS. The specific standard and facing details (RF, FF) can be customized upon request. -
Can the valve be supplied with actuators?
Yes, electric or pneumatic actuators can be provided as an optional accessory. We can offer integrated packages based on your control requirements. -
What is the typical size range available?
We produce valves in a range of sizes. Please contact us with your specific nominal diameter (DN) or inch size requirements for accurate availability. -
How does compliance with CB/T3191 benefit an international buyer?
This Chinese standard specifies requirements for marine valves. Compliance indicates the valve is designed and tested for rigorous performance, which aligns with global industrial standards for quality and safety. -
What is the lead time for production and delivery?
Lead times depend on order quantity, size, and customization. Standard items may have shorter lead times. We ship from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing for efficient logistics. -
Are testing reports or certifications provided?
As a manufacturer operating under an ISO9001 quality management system, we can provide relevant material test reports and factory acceptance test documentation upon request.
Shanghai Zhibang Valve's commitment to quality is underpinned by our ISO9001 certification, ensuring consistent manufacturing processes. Our global reach, with exports to markets from North America to Africa and Oceania, demonstrates the widespread acceptance of our products. Choosing our 2205 Duplex Stainless Steel Ball Valve means investing in a component that delivers long-term performance, operational safety, and cost-effectiveness. For detailed specifications, pricing, or to discuss custom requirements, please contact us. We are ready to support your project with a reliable valve solution.
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