API 6D Duplex Stainless Steel Ball Valve With Mill Test Report and Full Traceability
Product Spotlights
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our high-performance API 6D Duplex Stainless Steel Ball Valve. Engineered for the most demanding industrial applications, this valve combines the superior corrosion resistance of duplex stainless steel with the rigorous design and testing requirements of the API 6D standard. We understand that reliability and accountability are non-negotiable in critical process lines, which is why every valve is supplied with a comprehensive Mill Test Report and full material traceability, providing you with unparalleled confidence in your fluid control systems.
Our commitment to quality, backed by our ISO9001 certification, ensures that each valve delivers exceptional performance, longevity, and safety. Designed for global markets including North America, Europe, and Southeast Asia, this product is a cornerstone for industries where failure is not an option.
Core Features & Technical Advantages:
- Superior Material Integrity: Manufactured from premium duplex stainless steel (UNS S31803/S32205), offering excellent strength (approximately double that of standard 316 stainless steel) and outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. This makes it ideal for harsh environments containing chlorides, sour service (H2S), and other aggressive media.
- API 6D Compliance: Designed, manufactured, and tested in strict accordance with API Specification 6D for Pipeline Valves. This ensures rigorous standards for design, pressure containment, fire safety (if applicable), and performance, making it a trusted choice for oil & gas, petrochemical, and pipeline services.
- Full Documentation & Traceability: Each valve is accompanied by a complete Mill Test Report (MTR) from the raw material mill, verifying chemical composition and mechanical properties. Full traceability means every component can be tracked back to its original heat or batch number, a critical requirement for quality assurance and regulatory compliance in many industries.
- Robust Design & Construction: Features a robust one-piece or two-piece ball and stem design for high structural integrity. The seat design, available in soft-seated (PTFE) or metal-seated versions, ensures tight shut-off (bubble-tight sealing) and long service life even under high-cycle operations.
- Versatile Configurations: Available in a wide range of sizes, pressure classes (ANSI Class 150 to 2500), and end connections (flanged, socket weld, threaded) to suit your specific piping requirements. Various actuation options (manual lever, gear operator, pneumatic, electric) are available for remote or automated control.
- Enhanced Safety & Reliability: The design includes anti-static devices, blow-out proof stems, and fire-safe features (if specified per API 607/6FA), ensuring safe operation in hazardous areas and under emergency conditions.
Key Technical Specifications:
| Parameter | Details |
| Design & Manufacturing Standard | API Specification 6D |
| Body & Trim Material | Duplex Stainless Steel (UNS S31803/S32205) |
| Pressure Rating (Common) | ANSI Class 150, 300, 600, 900, 1500 |
| Size Range | 1/2" to 24" (DN15 to DN600), customizable |
| Temperature Range | -46°C to +200°C (for standard soft seat), higher available |
| End Connection | RF/FF Flanges, Socket Weld, NPT Threaded |
| Seat Material | PTFE, RPTFE, PEEK, Metal (upon request) |
| Operation | Lever, Gear, Pneumatic Actuator, Electric Actuator |
| Certification & Documentation | MTR, Full Traceability, ISO9001, NACE MR0175/ISO 15156 optional |
Benefits for Your Operation:
- Extended Asset Life: The corrosion resistance of duplex steel significantly reduces maintenance needs and replacement frequency, lowering your total cost of ownership.
- Uncompromised Safety: Compliance with API 6D and provision of full traceability mitigate operational risks and support compliance with stringent industry regulations.
- Operational Efficiency: Quarter-turn operation ensures quick and easy on/off control. Low torque design and various actuation options facilitate smooth integration into automated systems.
- Global Project Compatibility: Manufactured to internationally recognized standards (API, ANSI), our valves are readily accepted in major global markets, from North America and Europe to Southeast Asia and the Middle East.
With an annual export value ranging between US$1 Million to US$1.5 Million and a strong presence across continents, Shanghai Zhibang has proven its capability to deliver reliable industrial valves worldwide. Our products ship from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our API 6D Duplex Stainless Steel Ball Valve means selecting a product backed by a manufacturer with a solid track record, a commitment to documented quality (ISO9001), and a deep understanding of the needs of industries from oil & gas to chemical processing. This valve isn't just a component; it's a documented, traceable, and high-integrity solution for your critical applications. Contact us today to discuss your specifications and experience the Zhibang difference.
Frequently Asked Questions (FAQ)
-
Q: What is the main advantage of duplex stainless steel over 316 stainless steel for ball valves?
A: Duplex stainless steel offers a combination of higher strength (approximately double the yield strength) and significantly better resistance to stress corrosion cracking, pitting, and crevice corrosion, especially in chloride-containing environments. This makes it more suitable for demanding applications like offshore, sour gas, and chemical processing. -
Q: What does "API 6D" certification mean for this ball valve?
A: API 6D is a specification from the American Petroleum Institute for pipeline valves. Compliance ensures the valve is designed, manufactured, and tested to rigorous standards for pressure integrity, performance, fire safety (if specified), and dimensions, making it a preferred choice for critical oil, gas, and pipeline services. -
Q: What exactly is included in the "Full Traceability" documentation?
A: Full traceability means we maintain records that allow every major component (body, ball, stem, etc.) to be traced back to its original material melt or heat number. This is documented via Mill Test Reports (MTRs) and our own manufacturing records, providing proof of material origin and compliance with specified grades. -
Q: Are these valves suitable for sour service (H2S) environments?
A: Yes, our duplex stainless steel valves are inherently suitable for mild to moderate sour service due to the material's properties. For specific NACE MR0175/ISO 15156 compliance, please specify your requirements during inquiry, as additional testing or documentation may be available. -
Q: What actuation options are available, and can you supply the actuators?
A: We offer a full range of actuation: manual lever, gear operators (for high-torque applications), as well as pneumatic and electric actuators from reputable brands. We can supply the valve pre-assembled with the actuator as a complete package, tested and ready for installation. -
Q: What is your typical lead time for these API 6D valves?
A: Lead time depends on size, pressure class, and configuration. Standard configurations may have shorter lead times, while customized or large-sized valves require more production time. We provide accurate lead time estimates upon receipt of your detailed specifications. -
Q: Do you offer fire-safe tested versions of this ball valve?
A: Yes, fire-safe design per API 607/6FA standards is available as an option. Please indicate this requirement when requesting a quote, as it involves specific design features and testing protocols. -
Q: Can you provide valves with special coatings or surface treatments?
A: Yes, we can apply various coatings (e.g., epoxy, paint) or surface treatments upon request to meet specific project requirements for corrosion protection or identification.
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