Double Eccetric Butterfly Valve Disc Design With Worm Gear

Double Eccetric Butterfly Valve Product Structure Features

1. Connecting bracket: standardized driving device flange, complying with ISO5211
2. Sealing gland
3. "V" type sealing ring: NBR nitrile rubber, 4-6 pieces, effectively preventing the upper end of the shaft from leaking and the sealing is adjustable.
4. Body: Ductile iron.
5. Plate: the eccentric structure is adopted, and the sealing pressure ratio between the sealing pairs is automatically established to reduce the friction of the sealing ring and extend the service life of the valve..
The streamlined double eccentric valve plate effectively reduces the pressure loss and flow loss. The valve plate sealing ring adopts the "T" structure, and the sealing pair is linear sealed, with the characteristics of small operating torque, long service life of the sealing ring and good sealing performance.
The sealing ring can be replaced.
6. Seat: Inlaid or surfacing welded stainless steel valve seat, strong anti-scouring ability.
7. Stem: eccentric double half shaft stem design, less flow resistance.
8. Shaft sleeve: copper alloy, more wear-resistant and effective to reduce torque.
9. Pin: cylindrical pin, which can effectively transfer torque.

Double Eccetric Butterfly Valve Sealing Structure and Characteristics 

1. The "n"type stainless steel belt is inlaid on the valve body, which can prevent corrosion for a long time, and can prevent the vibration caused by the unstable water flow speed, and the valve failure caused by the losening and falling off of the fasteners, thus improving the adaptability to the adverse working
conditions.
2. The adoption of reliable "O" ring not only saves materials, but also simplifies the process and greatly reduces the cost of products.

Double Eccetric Butterfly Valve Main Performance Spcification

Product Advantages

Enhanced Sealing Performance

The Double Offset Butterfly Valve incorporates a "V" type sealing ring and a double eccentric design, ensuring optimal sealing pressure and 

minimizing friction. This reduces wear on the sealing components, extending the valve's lifespan and improving overall performance. The 

sealing structure can be easily adjusted to maintain perfect sealing, ensuring leak-free operation under varied pressures.

Corrosion Resistance and Durability

The valve’s stainless steel inlaid seat provides excellent anti-scouring ability, allowing it to perform in harsh environments. This feature, 

combined with the copper alloy shaft sleeve, ensures the butterfly valve is wear-resistant, minimizing torque requirements. The use of high-

quality materials also guarantees resistance to corrosion, making this valve suitable for long-term use in aggressive fluid systems.

Versatile Application and Efficiency

Thanks to its efficient double eccentric design, the high-performance butterfly valve minimizes flow resistance, improving energy efficiency.

 This design also allows for better adaptability in systems with varying pressure and flow conditions. The valve's ability to maintain consistent

 performance in both fresh and sea water systems demonstrates its versatility in multiple industries, including water treatment and chemical 

processing.

About Us

TJL Industry Group Co., Ltd. is a leading manufacturer specializing in high-quality valve products, with a focus on providing advanced flow

 control solutions to various industries worldwide. With decades of experience, TJL has established itself as a trusted butterfly valve manufacturer,

 offering a comprehensive range of valves including high performance butterfly valves. The company adheres to international standards and 

ensures strict quality control across all product lines. Through consistent innovation and dedication to customer satisfaction, TJL has built a 

solid reputation for reliability, efficiency, and cost-effective solutions. We serve clients in industries such as water treatment, chemical processing,

 oil and gas, and more, always ensuring that our products meet the highest standards of performance and safety.

Contact us today for more information on customized butterfly valves solutions!

FAQ

What makes the Double Offset Butterfly Valve different from other valves?

The Double Offset Butterfly Valve features a unique eccentric design that ensures minimal friction, long-lasting sealing, and reduced wear, 

making it ideal for high-performance applications.

Can the valve handle corrosive fluids?

Yes, the valve is designed with corrosion-resistant materials, including stainless steel inlays and copper alloy components, making it suitable 

for aggressive fluids like sea water and chemicals.

What is the maximum pressure the valve can handle?

The Double Offset Butterfly Valve can handle pressures up to 1.6 MPa, with specific models tested to higher levels for additional safety.

Is the valve easy to maintain?

Yes, the valve features replaceable sealing rings and an easily adjustable sealing structure, which helps reduce maintenance time and costs.

What industries can benefit from using this valve?

Industries such as water treatment, chemical processing, and marine applications can greatly benefit from the valve's versatility, durability, and

 reliable performance in various environments.

Send your message to us

TJL INDUSTRY GROUP CO., LIMITED 

Tel: 0086-22-28219562
Fax: 0086-22-28219554 ext.8888

Mobile:15022393555

Email: sales@tjlindustry.com

Address: 1-711,XiangNian Plaza, Dongjiang and Neijiang Road Cross, Hexi District, Tianjin China