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Help CenterZero-Leakage Duplex Stainless Steel Butterfly Valve, API 609 Certified, Full Port Design for High-Purity Lines
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As a professional manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our premium Zero-Leakage Duplex Stainless Steel Butterfly Valve. Engineered for the most demanding applications, this valve is specifically designed to ensure absolute integrity in high-purity and critical service lines. Our commitment to quality, backed by ISO9001 certification, ensures every valve delivers reliable, long-lasting performance. With an annual export value reflecting our global reach, we understand the stringent requirements of international markets, from North America and Europe to Southeast Asia and beyond.
This valve represents the pinnacle of butterfly valve technology, combining the superior corrosion resistance of duplex stainless steel with a full port design and API 609 certification. It is the ideal solution for industries where leakage is not an option and fluid purity is paramount.
Core Product Features and Technical Advantages:
- Superior Duplex Stainless Steel Construction: The valve body and disc are manufactured from high-grade duplex stainless steel (2205 or 2507), offering an exceptional combination of strength and corrosion resistance. This material provides excellent resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, making it suitable for handling seawater, chlorides, acids, and other aggressive media.
- Certified Zero-Leakage Performance: The valve is engineered to achieve a true zero-leakage seal, both upstream and downstream (bidirectional). This is achieved through precision-machined components and advanced sealing technology, ensuring no process media escapes, which is critical for environmental protection, safety, and product loss prevention.
- API 609 Certification Assurance: Compliance with the API 609 standard for butterfly valves is a mark of quality and reliability. This certification guarantees that the valve design, materials, testing, and performance meet rigorous industry specifications for refinery and chemical process services, providing buyers with confidence in its application.
- Full Port (Full Bore) Design: Unlike standard port valves, the full port design features a disc and seat that match the inner diameter of the connecting pipeline. This minimizes pressure drop, prevents clogging, and allows for easy pigging or cleaning of the line, which is essential for maintaining purity in food & beverage, pharmaceutical, and bioprocessing applications.
- Versatile Actuation and Connection Options: The valve is designed for flexibility in installation and operation. It is available in various configurations to suit your specific needs.
Technical Specifications Table:
| Parameter | Specification / Option |
|---|---|
| Body & Disc Material | Duplex Stainless Steel UNS S32205/S31803 (2205) or UNS S32750 (2507) |
| Stem Material | Duplex Stainless Steel or 17-4PH Stainless Steel |
| Seat Material | PTFE (Standard for high purity), RPTFE, PEEK, or Metal (High-temperature) |
| Size Range (Nominal Diameter) | DN50 (2") to DN1200 (48") |
| Pressure Rating | PN10, PN16, PN25, PN40, PN63 (Class 150, Class 300) |
| Temperature Range | -30°C to +200°C (with PTFE seat); Higher ranges with metal seats |
| End Connection | Wafer, Lug, Double Flange (RF, RTJ faces) |
| Operation Type | Manual (Lever, Gear), Electric Actuator, Pneumatic Actuator (Double-acting/Spring-return) |
| Leakage Standard | Bidirectional Zero Leakage (FCI 70-2 / ANSI B16.104 Class VI) |
| Face-to-Face Dimensions | Complies with API 609, ISO 5752, ASME B16.10 |
Benefits for Your Operation:
- Enhanced System Safety and Environmental Compliance: The zero-leakage design eliminates fugitive emissions and product loss, helping you meet strict environmental regulations and ensuring a safer workplace.
- Reduced Total Cost of Ownership: The exceptional corrosion resistance of duplex steel significantly extends service life, reducing replacement frequency and maintenance costs associated with valve failures.
- Optimized Process Efficiency: The full bore design maintains flow capacity, reduces pumping energy costs, and facilitates efficient system cleaning and maintenance, minimizing downtime.
- Global Supply Chain Reliability: With major ports of shipment including Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and flexible delivery to support your project timelines worldwide.
Frequently Asked Questions (FAQ):
Q1: What does "zero leakage" specifically mean for this butterfly valve?
A1: "Zero leakage" refers to the valve's ability to provide a bubble-tight seal in both flow directions when fully closed. It typically conforms to leakage standards like ANSI B16.104 Class VI or FCI 70-2, meaning no visible bubbles are observed during a standardized air or water test, ensuring maximum containment.
Q2: Why choose a duplex stainless steel valve over standard 316 stainless steel?
A2: Duplex stainless steel offers approximately twice the yield strength of standard austenitic grades like 316. More importantly, it provides superior resistance to stress corrosion cracking, pitting, and erosion, especially in environments containing chlorides, making it a more durable and reliable choice for harsh chemical and offshore applications.
Q3: Is the API 609 certification applicable to all sizes and pressure ratings you offer?
A3: Yes, our manufacturing and testing processes for this product line are designed to comply with the API 609 standard across the specified size and pressure rating ranges. Each valve is produced under a quality management system certified to ISO9001 to ensure consistent adherence to these requirements.
Q4: Can this full port valve be used for CIP (Clean-in-Place) or SIP (Steam-in-Place) processes?
A4: Absolutely. The full port design is ideal for CIP/SIP applications as it eliminates dead legs where product or cleaning agents could accumulate. When paired with a compatible seat material like PTFE or PEEK, it can withstand the thermal and chemical cycles of typical sterilization processes.
Q5: What types of actuators are compatible, and do you provide them?
A5: The valve is designed with a standardized mounting interface compatible with most major brands of electric and pneumatic actuators (ISO 5211 mounting pad). We can supply the valve as a manual unit or provide a complete, tested package with an actuator of your choice, including options for fail-safe (spring-return) and modulating control.
Q6: What is the typical delivery lead time for a custom order?
A6: Lead times vary based on size, material grade, and actuator selection. For standard configurations in our common size range, we often maintain stock or can deliver within a few weeks. For large or highly customized orders, our team will provide a precise timeline upon receipt of your detailed specifications.
Q7: Do you offer any testing or documentation with the valve?
A7> Yes. Standard documentation includes a Material Test Report (MTR) for critical components. Additional testing, such as shell test, seat leak test (including the zero-leakage test), and pneumatic/hydraulic actuator testing, can be performed and documented with certified reports, available upon request.
Q8: How does your company support after-sales and technical inquiries?
A8> As an established manufacturer, we provide comprehensive technical support. This includes assistance with installation, operation, and maintenance. We also maintain a supply of common spare parts like seals and gaskets to support the long-term operation of your valves.
Shanghai Zhibang Valve leverages nearly a decade of specialized manufacturing expertise and a proven global export track record to deliver valves that meet the highest standards. Our ISO9001-certified processes ensure consistent quality, while our presence in key global markets from North America to Oceania demonstrates our capability to serve international clients reliably. Choosing our Zero-Leakage Duplex Butterfly Valve means investing in a component that safeguards your process integrity, reduces lifecycle costs, and is backed by a responsive manufacturer. Contact us today to discuss your specific application requirements and receive a detailed quotation. Let us provide you with a valve solution that combines advanced engineering with dependable performance.
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