Triple Offset Eccentric Butterfly Valve
- All Parts Can Be Made Of Different Materials According To Actual Working Conditions
- Pn1.0～1.6mpa(Concentric Butterfly Valve), PN0.6～2.5MPa(Eccentric Butterfly Valve)
- 50 Years
- Valve Plate as Stainless Steel；ductile Iron
Product Description
What are triple offset eccentric butterfly valve?
A triple offset eccentric butterfly valve comprises a circular disc that revolves within the valve body to either open or close the flow. In an eccentric disc butterfly valve, the disc rotates about an axis that is offset (eccentric) from the valve body’s center. On the other hand, a concentric butterfly valve has a disc that rotates concentrically, with the axis of rotation aligned with the centerline of the valve body and pipe. Both types are employed for flow regulation but exhibit distinct design features.
The Distinctive Traits of Eccentric and Concentric Butterfly Valves
As a reputable supplier of quality triple offset eccentric butterfly valve from China, triple offset eccentric butterfly valve takes pride in offering a range of butterfly valves that possess remarkable features. Today, we shall compare two types of butterfly valves – eccentric and concentric – and highlight the unique characteristics of each:
- Eccentric Disc Valves: These valves exhibit a more linear flow characteristic, ensuring a consistent velocity as they open or close. This results in reduced turbulence during operation, allowing for smoother flow control.
- Concentric Valves: In contrast, concentric valves possess a more progressive flow trait. As the valve opens, the flow rate increases non-linearly, leading to a higher degree of turbulence. This can be advantageous in certain applications where specific flow characteristics are desired.
- Installation Benefits: Eccentric valves offer installation advantages in compact spaces where concentric valves may not fit between pipe flanges. The offsetting of the disc allows for more flexibility in tight installations, ensuring efficient use of available space.
- Design Simplicity: On the other hand, concentric valves boast a simpler design, without the additional clearance required by the offset motion of an eccentric disc. This straightforward design can be advantageous in applications where simplicity and ease of maintenance are prioritized.
The Flexibility of Butterfly Valves: Unconventional and Symmetrical
As quality butterfly valves for these two types, Both see wide chemical, oil/gas, power, marine and more. For instances, Firstly, triple offset eccentric butterfly valve is isolation valves, then it allows pipe/vessel insulation for control/drainage. Secondly, if triple offset eccentric butterfly valve is as control valves, it will be in piping manifolds to direct flow between multiple lines. Thirdly, when triple offset eccentric butterfly valve as shut-off valves in ductwork or wherever flow needs regulating in changing conditions.
Eccentric Disc Butterfly Valves:
- Throttling service: Eccentric disc butterfly valves are designed for applications that require precise flow control, especially in situations where linearity is crucial. They are commonly used in pumping stations, HVAC systems, and processing plants to ensure optimal flow regulation.
- Space constraints: When the distance between pipe centerlines is too close to accommodate a concentric valve, eccentric disc valves come to the rescue. Their unique design allows for installation in tight spaces without compromising performance.
Concentric Butterfly Valves:
- On/off applications: Concentric butterfly valves excel in applications that require simple on/off functionality, where gradual filling or emptying is less critical. They are often found in ballast tanks or surge tanks, providing reliable control over the flow.
- Cost-effective solutions: With a simpler concentric design that requires less precision and clearance, these valves offer a more budget-friendly option without compromising quality. They are particularly suitable when cost considerations are a priority.
- Large water transmission mains: Concentric butterfly valves find their place in large-scale water transmission mains, where the impact of turbulence is minimal due to the favorable pipe diameter-to-flow ratio. They ensure efficient flow control in these demanding applications.
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Why Choose Us
TWT was established in 1956 and is located in Tianjin Binhai New Area, China’s valve production base. It has modern design standards, intelligent manufacturing equipment and testing center. It is an industry pioneer specializing in valve development and manufacturing. It mainly produces butterfly valves, eccentric semi-ball valves, regulating valves, diamond regulating valves, exhaust valves and hydraulic control valves and other 1000 categories of valves.
