Concentric Butterfly Valve

What are concentric butterfly valve?

A concentric butterfly valve features a circular disc that rotates within the valve body to control the flow. In an eccentric disc butterfly valve, the disc rotates around an axis that is offset (eccentric) from the center of the valve body. Conversely, a concentric butterfly valve has a disc that rotates concentrically, meaning the axis of rotation aligns with the centerline of the valve body and pipe. Both types are used to regulate flow but have unique design characteristics.

The Enchanting Distinctions of Eccentric and Concentric Butterfly Valves

As a distinguished purveyor of exquisite concentric butterfly valve from China, concentric butterfly valve takes immense pride in presenting a splendid assortment of butterfly valves imbued with remarkable features. Today, let us delve into the intricate world of two captivating valve types – eccentric and concentric – and unravel the enchanting traits that set them apart:

• Eccentric Disc Valves: These valves exude a harmonious flow characteristic, akin to a melodious symphony. As they gracefully open or close, their movement maintains a linear flow pattern, ensuring consistent velocity. This serene dance of fluid control minimizes turbulence, creating a tranquil and seamless flow experience.
• Concentric Valves: In contrast, concentric valves possess a dynamic and progressive flow trait, reminiscent of a vibrant crescendo. As the valve opens, the flow rate increases in a non-linear fashion, infusing the system with a controlled turbulence. This captivating performance allows for applications where specific flow characteristics are desired, adding a touch of artistic brilliance to fluid dynamics.
• Installation Flexibility: Eccentric valves bestow upon us the gift of adaptability, especially in compact spaces where concentric valves may struggle to fit between pipe flanges. With their offset disc design, eccentric valves gracefully navigate confined installations, optimizing the utilization of available space.
• Design Simplicity: Yet, concentric valves radiate an aura of elegant simplicity, embracing a design without the additional clearance requirements of an eccentric disc’s offset motion. This streamlined design offers a seamless and hassle-free operation, delighting users with its effortless maintenance and functionality.

The Versatility of Butterfly Valves: Eccentric and Concentric

As quality butterfly valves for these two types, Both see wide chemical, oil/gas, power, marine and more. For instances, Firstly, concentric butterfly valve is isolation valves, then it allows pipe/vessel insulation for control/drainage. Secondly, if concentric butterfly valve is as control valves, it will be in piping manifolds to direct flow between multiple lines. Thirdly, when concentric butterfly valve as shut-off valves in ductwork or wherever flow needs regulating in changing conditions.

Eccentric Disc Butterfly Valves:

• Throttling service: These valves are specifically designed for applications that require precise flow control, particularly in situations where linearity is crucial. They are commonly used in pumping stations, HVAC systems, and processing plants.
• Space constraints: When the distance between pipe centerlines is too close to accommodate a concentric valve, eccentric disc valves come into play. Their design allows for installation in tight spaces without compromising functionality.

Concentric Butterfly Valves:

• On/off applications: Concentric valves are ideal for situations where gradual filling or emptying is less critical, such as ballast tanks or surge tanks. They provide reliable on/off functionality, ensuring efficient operation.
• Cost-effective solutions: With a simpler concentric design that requires less precision and clearance, these valves offer a more affordable option without compromising performance. They are often chosen when low cost is a priority.
• Large water transmission mains: Concentric valves are well-suited for use in large water transmission mains, where the impact of turbulence is minimal due to the favorable pipe diameter-to-flow ratio. They ensure smooth and efficient flow control in these demanding applications.

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Why Choose Us

TWT, established in 1956 and located in Tianjin Binhai New Area, China’s premier valve production base, embodies excellence with modern design standards, advanced intelligent manufacturing equipment, and a dedicated testing center. As an industry pioneer in valve development and manufacturing, we produce a diverse array of valves including butterfly valves, eccentric semi-ball valves, regulating valves, diamond regulating valves, exhaust valves, hydraulic control valves, and more than 1000 other categories of valves.