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Home > Industrial Equipment & Components > Valve > Butterfly Valve > 316 Stainless Steel Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator
316 Stainless Steel Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator
Product Spotlights
316 stainless steel construction offers superior corrosion resistance for marine & harsh environments. Duo-eccentric design reduces wear, ensures tight sealing with low torque, and extends valve life. Wafer style provides compact, easy installation between flanges. Manual operation (no actuator) offers a cost-effective, reliable solution, with actuator compatibility for future automation. ISO9001 certified manufacturing ensures quality.
Negotiable
MOQ: 10 Units (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Marine & Offshore Systems
Standard:
ISO9001 Certified Manufacturing
Material:
316 Stainless Steel
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
7 days
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Application
Other, Marine & Offshore Systems
Standard
ISO9001 Certified Manufacturing
Material
316 Stainless Steel
Type
Wafer Duo-Eccentric Butterfly Valve
Actuation
No Actuator (Manual)
Connection
Wafer Design
Sealing
Duo-Eccentric Seal Mechanism
Configuration
Optional Actuator Available
As a dedicated manufacturer with ISO9001 certified processes, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance fluid control solutions for demanding global markets. Our 316 Stainless Steel Marine Wafer Duo-Eccentric Butterfly Valve is engineered specifically to meet the rigorous challenges of marine, offshore, and industrial applications. With an annual export value reflecting our international reach, we deliver valves that combine superior corrosion resistance, reliable sealing, and durable construction, providing a critical component for system integrity and safety.
This valve is designed without an actuator, offering a robust manual operation solution ideal for various control points. Its core value lies in the exceptional material choice and innovative design, ensuring long-term performance even in aggressive environments like seawater, chemical processing, or high-pressure fluid systems.
Key Features & Technical Specifications:
- Premium Material Construction: Manufactured entirely from 316 stainless steel, offering significantly higher resistance to chloride corrosion, pitting, and crevice corrosion compared to standard 304 stainless steel. This is essential for marine applications where exposure to saltwater is constant.
- Duo-Eccentric (Double Offset) Design: The disc is offset from both the seat centerline and the shaft centerline. This design minimizes wear and friction during operation, ensures a tighter seal with less torque, and allows for a more gradual seating action, reducing seal damage and extending service life.
- Wafer Style Body: The valve is designed to be installed between two pipe flanges using bolts, eliminating the need for valve body nuts. This provides a compact, lightweight design that simplifies installation and reduces overall system weight and space requirements.
- Manual Operation (No Actuator): The valve is supplied as a manual unit, operated via a handwheel or lever. This configuration is cost-effective, simple, and reliable for applications where automated control is not required or where the valve serves as an isolation point.
- Versatile Sealing Options: The sealing ring is typically made from high-grade materials like PTFE, EPDM, or Viton, compatible with the duo-eccentric seat, ensuring effective shut-off against a wide range of media including water, oils, gases, and mild chemicals.
- Robust Stem & Disc Assembly: The shaft is integrated with the disc using a secure connection, often with anti-backlash features, ensuring precise control and preventing operational slippage.
Technical Parameters Table (Typical Specifications):
| Parameter | Details / Range |
| Body & Disc Material | 316 Stainless Steel (AISI 316) |
| Seal Material | PTFE, EPDM, Viton (Customizable) |
| Connection Type | Wafer (Between Flanges) |
| Design Type | Duo-Eccentric (Double Offset) |
| Pressure Rating | Typically PN10 to PN16 (Customizable) |
| Size Range (DN) | Commonly available from DN50 to DN300 |
| Operation | Manual (Handwheel/Lever), No Actuator |
| Temperature Range | Depends on seal material, often -20°C to +150°C |
Advantages & Client Benefits:
- Enhanced Corrosion Resistance: The use of 316 stainless steel, with its molybdenum content, provides superior protection in chloride-rich environments like marine systems, coastal plants, and chemical applications, drastically reducing maintenance and replacement costs.
- Longer Service Life & Reduced Wear: The duo-eccentric mechanism significantly lowers friction between the disc and seat during operation. This translates to less wear on the sealing components, more reliable shut-off over time, and extended valve lifespan.
- Compact & Easy Installation: The wafer design allows for quick installation between existing flanges without extensive piping modifications. It saves space and weight, which is particularly valuable on ships, offshore platforms, and in compact industrial layouts.
- Cost-Effective Manual Solution: By providing the valve without an actuator, we offer a simpler, more economical option for applications where manual control is sufficient. Actuators (electric, pneumatic, hydraulic) can be added later if needed.
- Reliable Sealing Performance: The combination of the duo-eccentric design and high-quality seal materials ensures excellent sealing integrity, minimizing leakage and ensuring safe, efficient system operation.
- Global Supply Capability: Supported by our established export channels from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we reliably supply products to diverse markets including North America, Europe, Southeast Asia, and Africa.
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has built a strong reputation through consistent quality and reliable delivery. Our ISO9001 certification underpins our manufacturing discipline, ensuring every valve meets stringent quality control standards. With an annual export value demonstrating our global client trust, and our products successfully serving markets across the world from Eastern Europe to Oceania, we provide not just a component, but a dependable partnership. This 316 Stainless Steel Marine Wafer Duo-Eccentric Butterfly Valve embodies our commitment to durability, innovation, and practical value. For your next marine, offshore, or corrosive environment project, consider this valve as a reliable, long-lasting solution. Contact us for detailed specifications, pricing, or to discuss custom requirements.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of using 316 stainless steel over 304 for this valve?
A: 316 stainless steel contains molybdenum, which greatly enhances its resistance to corrosion from chlorides, acids, and other aggressive agents. This makes it the preferred material for marine applications, chemical processing, and environments where 304 stainless might corrode or pit. -
Q: How does the "duo-eccentric" or "double offset" design benefit the valve's operation?
A: In a duo-eccentric design, the disc is offset twice: from the seat center and the shaft center. This geometry allows the disc to cam away from the seat as it opens, drastically reducing friction and wear. It also creates a tighter seal with lower operating torque and a more gradual seating action, protecting the seal. -
Q: Can this wafer valve be installed in any piping system?
A: The wafer valve is designed to be installed between two flanges using bolts that pass through the valve body. It requires that the piping system has compatible flanges (standard flange dimensions). It is not suitable for threaded or welded connections unless an adapter is used. -
Q: The product is listed as "No Actuator." Can an actuator be added later?
A: Yes, absolutely. This valve is supplied as a manual unit with a standard handwheel or lever. The design typically allows for the later installation of various actuators (electric, pneumatic, hydraulic) onto the valve shaft to enable automated control, if required by the system upgrade. -
Q: What types of media can this valve handle effectively?
A: Given its 316 stainless steel body and compatible seal materials (like PTFE, EPDM), it is suitable for a wide range of media including seawater, fresh water, oils, gases, and many mild chemical solutions. The specific seal material should be selected based on the media's chemical properties and temperature. -
Q: What pressure ratings are typically available for this valve?
A: Standard pressure ratings often range from PN10 to PN16. Higher pressure ratings may be available upon request or through custom design. It is important to confirm the required pressure class for your specific application. -
Q: Does the valve come with any standard certifications?
A: Our manufacturing process is ISO9001 certified, ensuring consistent quality management. The valve itself may be produced to meet common industry standards. Specific product certifications (like CE, API) can be discussed and provided based on customer requirements and valve configuration. -
Q: What are the main delivery ports and lead times?
A> We primarily ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports. Lead times depend on order quantity, specifications, and current production schedule. We strive to provide efficient logistics to our global clients across our main markets.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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