Double eccentric butterfly valves are commonly used in underground water supply systems as a more cost-effective alternative to gate valves. When installed below ground, they require a shallower burial depth, and they are typically more affordable, particularly in larger sizes, compared to gate valves. They can also be used in above-ground installations.

 1：Precision-Machined Stainless Steel Seat Ring: The stainless steel seat ring, with its specially designed rubber sealing profile, ensures a reliable tight shut-off seal, making the valve ideal for flow isolation and shut-off duties.

2：Double Offset Disc Design: This design minimizes seat wear and provides superior throttling performance, enhancing the valve’s versatility in flow control applications.

3：Adjustable Mechanical Stopper: The valve body is equipped with an adjustable mechanical stopper, ensuring precise disc closure without over or under travel, guaranteeing consistent operation.

4：Blowout-Proof Shafts: Both the drive and non-drive end shafts are fully blowout-proof and are guided by self-lubricating bush bearings for added durability and safety.

5：Axial Thrust Bearing: The axial thrust bearing ensures precise disc positioning, preventing uneven load distribution on the valve seat. It also allows for valve installation in any required orientation.

6：Special Shaft Sealing Arrangement: This sealing arrangement ensures zero fugitive emissions and allows for the field replacement of shaft sealing elements, ensuring long-term performance and minimal environmental impact.

7：Field-Replaceable Seat on the Disc: The seat on the disc is fully replaceable in the field, ensuring optimal seating and reseating torque for a reliable seal throughout the valve's life.

8：Versatile Seat Material Options: A variety of seat materials are available, making the valve suitable for both gas and liquid services across a wide range of applications.

 Corrosion Protection    

Epoxy Resin Powder Spray,The minimum thickness is not less than 300 microns  

Butterfly Valve Manufacturing Process
From Technical Confirmation to Final Delivery



Standardized Quality Control Process

From raw material inspection to final delivery, every butterfly valve undergoes a comprehensive quality inspection to ensure reliable performance and compliance with international standards.

International Certifications

Manufactured to international quality standards and certified for global industrial and potable water applications.