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As a leading manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our premium API 6D Duplex Stainless Steel Ball Valve. Engineered for the most demanding industrial applications, this valve is backed by an industry-leading 5-Year Extended Warranty on the body and trim, a testament to our confidence in its superior durability and performance. Since our establishment in 2016, we have dedicated ourselves to producing high-integrity flow control solutions, exporting to major markets worldwide from our strategic ports in Shanghai, Guangzhou, Hong Kong, and Beijing. This valve is designed to deliver exceptional reliability, corrosion resistance, and long-term cost savings for your critical operations.
Our API 6D Duplex Stainless Steel Ball Valve is meticulously crafted to meet the stringent requirements of the oil & gas, chemical, and petrochemical industries. The core of its performance lies in the use of Duplex Stainless Steel (UNS S31803/S32205), which offers a unique combination of high strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. This makes it an ideal choice for handling aggressive media, seawater, and chloride-containing environments where standard stainless steels may fail.
- Robust Construction & Extended Warranty: The valve body, ball, and stem are manufactured from forged or cast duplex stainless steel, ensuring structural integrity under high pressure and temperature cycling. Our unprecedented 5-year warranty on these critical components provides peace of mind and significantly reduces total cost of ownership by minimizing unexpected failures and downtime.
- API 6D Compliance & Full Port Design: Designed and manufactured in full compliance with API 6D specifications for pipeline valves, this valve ensures safe and reliable operation in pipeline systems. The full port (full bore) design minimizes pressure drop across the valve, allowing for efficient pigging and reducing pumping energy costs over the system's lifetime.
- Superior Sealing Technology: We offer a range of seat and seal material options to suit specific service conditions. Standard seats are made from reinforced PTFE or RPTFE for tight shut-off and low operating torque. For high-temperature or abrasive services, PEEK or metal-seated versions are available upon request, ensuring bubble-tight sealing across a wide spectrum of operating conditions.
- Versatile Actuation & Configuration: The valve can be supplied with manual operation (lever or gearbox) or automated with pneumatic or electric actuators for remote control and integration into process automation systems. Various trims, end connections (flanged, butt weld, socket weld), and pressure classes are customizable to fit your exact piping specifications.
Key technical specifications for standard configurations are summarized below:
| Parameter | Specification / Range |
| Design & Manufacturing Standard | API 6D, ASME B16.34 |
| Pressure-Temperature Rating | ASME B16.34 |
| Fire Safe Design | API 607 / API 6FA (Optional) |
| Face-to-Face Dimensions | API 6D, ASME B16.10 |
| Flange End Standards | ASME B16.5, ASME B16.47, EN1092-1 |
| Test Standards | API 598, ISO 5208 |
| Temperature Range | -29°C to 200°C (Standard Seats); Higher ranges available |
The primary advantages for your operation include enhanced safety through robust construction, reduced maintenance costs due to superior corrosion resistance and the extended warranty, improved flow efficiency from the full-port design, and operational flexibility through various actuation and configuration options. This valve is a strategic investment for projects requiring long service life and high reliability.
Shanghai Zhibang Valve backs this high-performance product with solid manufacturing credentials. Our ISO9001 certification ensures a consistent quality management system throughout production. With an annual export value ranging between US$1 Million and US$1.5 Million, we have proven our capability to supply reliable products to diverse markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our global reach and experience mean we understand the specific requirements of different regions and industries. Choosing our API 6D Duplex Ball Valve with a 5-year warranty is not just purchasing a component; it's securing a partnership with a committed manufacturer dedicated to your operational success and risk reduction. Contact us today to discuss your project specifications and experience the Zhibang difference in quality and service.
Frequently Asked Questions (FAQ):
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Q: What exactly does the 5-Year Extended Warranty cover?
A: The warranty specifically covers defects in materials and workmanship for the valve body and trim (including the ball and stem) under normal service conditions as specified in the product documentation. It is a commitment to the durability of these core components. -
Q: Why is Duplex Stainless Steel preferred for certain applications?
A: Duplex stainless steel offers approximately twice the yield strength of standard 316 stainless steel and provides superior resistance to chloride-induced stress corrosion cracking, making it ideal for offshore, chemical processing, and oil & gas applications with corrosive media. -
Q: Can this valve be used for both on/off and control services?
A: This valve is primarily designed as a tight-shutoff isolation valve (on/off service). For precise flow control (throttling), specific trim designs and actuator controls would be required, which can be discussed as a custom solution. -
Q: Are your valves suitable for sour service (H2S environments)?
A: Yes, valves can be supplied with materials and hardness controls compliant with NACE MR0175/ISO 15156 standards for sour service. This must be specified at the time of ordering. -
Q: What delivery times can we expect for standard sizes?
A: Lead times vary based on size, pressure class, and configuration. Standard items may have shorter lead times, while customized valves require additional engineering and manufacturing time. We provide estimated schedules upon quotation. -
Q: Do you provide actuated valve packages?
A: Yes, we can supply complete packages including the ball valve fitted with pneumatic (double-acting or spring-return) or electric actuators, limit switches, solenoid valves, and other accessories as a fully assembled and tested unit. -
Q: How does the full port design benefit my pipeline system?
A: A full port (full bore) valve has an internal diameter equal to the pipeline, minimizing flow restriction and pressure drop. This reduces pumping energy costs, allows for pipeline pigging, and prevents cavitation in certain conditions. -
Q: What documentation is provided with the valves?
A: Standard documentation includes a material test report (MTR), certificate of conformance, pressure test report, and detailed dimensional drawings. Additional certifications like NACE or fire test reports are provided when specified.
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