What is Double Offset Butterfly Valve?

What is Double Offset Butterfly Valve?

Double offset butterfly valves are critical components in various industrial applications. They effectively control fluid flow with minimal pressure drop. This article explores their design, functionality, advantages, and common applications. Take an insight into TWT, a leading manufacturer in the valve industry.

double offset butterfly valve

Understanding the Double Offset Butterfly Valve Design

Design Features

Double offset butterfly valves, also known as high-performance butterfly valves, have two offsets from the valve body’s center:

  • The shaft axis is offset from the disc’s seat and body seal’s centerline, and
  • The shaft axis is eccentric to the pipeline’s/valve’s center line.

This unique design helps minimize turbulence and ensures a tight seal, making these valves ideal for a variety of applications.

How They Work

A butterfly valve has flanges on both the inlet and outlet faces, which makes the connection between the valve and the pipe very easy and will not leak. As well as the pipe end connected with the valve is also designed to be the same size as the flange and hole on the flanged valve. In general, these valves offer defect-free and worry-free performance.

Key Components

  1. Body: Typically made from durable materials like ductile (ASTM A536 /GGG40).
  2. Disc: All made in ASTM A536/ GGG40
  3. Stem: Stainless Steel: ASTM A182 304/316/431/ Duplex Stainless Steel

Applications of Double Offset Butterfly Valves

These valves are widely used in various industries due to their robustness and efficiency:

Application FieldSpecific ApplicationsKey AdvantagesIndustries
Fluid TypesCorrosive gases, chlorine, oxygen, seawater, acidic gases, steam, toxic substances, ultrapure water, vacuum, wastewaterLightweight, cost-effective, capable of handling extreme pressures and temperaturesChemical, Food and Beverage, HVAC, Mining
High corrosion resistanceOil and Gas, Petrochemical, Pharmaceutical
High design strengthPower Generation, Pulp and Paper, Refining
Versatile in various applicationsSugar Processing, Water Filtration

Advantages of DN1400 Flange Dimensions Double Offset Butterfly Valves

  1. Reduced Friction: The offset design minimizes contact between the disc and the seat, reducing friction and wear.
  2. Cleanability: Due to the self cleaning(no residue will be trapped) function, it’s also easy to clean and disinfect for potable water systems, etc.
  3. Lightweight and Compact: Compared to other valve types, double offset butterfly valves reduced weight and overall dimensions, making them easier to install and maintain.
  4. Versatility: Installation without restriction in the direction of flow (polished disc rim to avoid damage to the valve seat. For installation there is no gasket needed).
  5. Cost-Effective: Low-pressure loss and reduced energy costs. Good corrosion resistance.
  6. Multiple Option
    • Manual, electric actuator, pneumatic actuator, hydraulic actuator, and bare shaft are optional
    • Water, drinking water, portable water, Oil, seawater, and gas are all available working services.
    • Size is from DN150-DN3600

Conclusion

Double offset butterfly valves play a vital role in fluid control across many industries. Their unique design offers significant advantages, including improved sealing, reduced wear, and versatility in application. Companies like TWT lead the way in providing high-quality valves that enhance efficiency and reduce costs.

For more information on double offset butterfly valves and TWT’s offerings, contact us by phone at +86 18722007022 or email us at [email protected]

Why Choose a Double Offset Butterfly Valve for Your Next Project?

Why Choose a Double Offset Butterfly Valve for Your Next Project?

When it comes to efficient flow control in various industrial applications, the double offset butterfly valve stands out. This innovative design, particularly the China double offset butterfly valve, offers significant advantages over traditional valve types, ensuring better performance and reliability.

Double Offset Butterfly Valve

Key Features and Benefits

The offset butterfly valve is characterized by its unique design, which shifts the valve seat away from the centerline. This feature reduces friction during operation, leading to a longer lifespan and less wear. The DN1400 Worm Gear Ductile Iron Flange Double Offset Butterfly Valve model, for instance, operates effectively under low pressure conditions (Pn<1.6MPa), making it ideal for water systems.

Manufactured from high-quality ductile iron, this valve is designed to meet stringent industry standards like API609 and EN593. It is available in various sizes ranging from DN150 to DN3600, catering to diverse project needs. Additionally, it offers flexibility in operation with options for manual, electric, pneumatic, or hydraulic actuation.

Self-Cleaning and Corrosion-Resistant

The engineering behind the double offset butterfly valve allows for easy cleaning and maintenance, making it a favorite in water treatment and industrial applications. The self-cleaning feature ensures that no residue gets trapped, promoting efficient operation in potable water systems. Moreover, the valve’s excellent resistance to corrosion guarantees long-term reliability, even in harsh environments.

Customization and OEM & ODM Services

Choosing our double offset butterfly valve means investing in a product designed for durability and efficiency. We provide OEM & ODM services, allowing you to customize features according to your specific requirements. This ensures that you get a product tailored to your operational needs, whether it’s for industrial usage or household applications.

Contact Us for Wholesale Options

For wholesale options and detailed quotes, potential customers can contact us at [email protected]. We welcome local wholesalers and suppliers worldwide to reach out for partnerships. By choosing us, you not only benefit from high-quality products but also gain access to extensive support and customization options.

Experience and Expertise

Our commitment to quality and customer satisfaction positions us as a leading manufacturer in the valve industry. With over 60 years of experience, we have the expertise to meet the demands of modern industries, ensuring that our products perform reliably under various conditions.

Conclusion

In summary, if you’re looking for an effective solution for fluid control, consider the double offset butterfly valve. Its unique design and high-quality manufacturing make it an excellent choice for any project, enhancing operational efficiency while reducing maintenance needs. For more information, please reach out to us today.