Pneumatic Eccentric Butterfly Valve for High Temp Steam

Product Description

Our Pneumatic Eccentric Butterfly Valve (also known as tri-eccentric pneumatic butterfly valve) is an industrial-grade flow control solution engineered with an advanced three-dimensional eccentricity principle, designed to deliver reliable shut-off and precise regulation for demanding pipeline systems. Manufactured in strict compliance with API 609 and GB/T 12238 design standards, this valve features end flanges aligned with ASME B16.5, JIS B2212, and DIN 2543 specifications, face-to-face dimensions meeting ASME B16.10, JIS B2002, and BS EN558-1 requirements, with all products inspected and tested in accordance with API 598 standards. Its innovative design sees the valve stem axis deviate from both the disc center and body center, with the valve seat rotation axis forming a specific angle with the valve body channel axis, eliminating friction during opening and closing and delivering superior performance for industrial facility operators, engineering procurement teams, and process system integrators.

Key Features & Industry-Leading Benefits

Zero Leakage Sealing Performance

The high-performance tri-eccentric butterfly valve achieves reliable sealing through extrusion between valve sealing surfaces, with sealing grade improving as closing torque increases, enabling true zero leakage performance. This makes it ideal for applications with strict sealing requirements, eliminating material loss and safety hazards caused by medium leakage in industrial pipelines.

Extended Service Life With Wear-Resistant Design

The unique triple eccentric structure eliminates metal-to-metal friction during the full opening and closing stroke, minimizing wear on sealing surfaces. This non-contact operation ensures no deformation after long-term continuous operation, significantly reducing maintenance frequency and extending the valve’s service life, while cutting unplanned downtime for industrial plants.

High Flow Efficiency & Rapid Actuation

The tri-eccentric design maximizes the valve’s flow diameter, creating a streamlined flow path with low frictional resistance and high flow capacity. The valve only requires 70-90° rotation for full opening and closing, drastically shortening actuation time, enabling fast emergency shut-off, and improving the overall response efficiency of industrial pipeline systems.

Wide Adaptability For Harsh Working Conditions

Available in sizes from 2” to 72”, with pressure ratings of 150LB to 300LB, and an operating temperature range of -29℃ to 425℃, this valve is compatible with water, oil, gas, steam, and other common industrial media. It offers flexible material options including carbon steel (WCB) and stainless steel (CF8, CF8M, CF3, CF3M), adapting to diverse harsh industrial environments.

Industrial Applications

Our pneumatic eccentric butterfly valve is widely deployed across core industrial sectors including petroleum, chemical processing, metallurgy, power generation, municipal water treatment, and heating ventilation. It is the preferred flow control solution for crude oil transmission pipelines in petrochemical plants, medium regulation in chemical production lines, high-temperature steam systems in metallurgical facilities, circulating water systems in power plants, and main pipeline shut-off in municipal water supply networks. It excels in scenarios requiring high sealing performance, high temperature and pressure resistance, and frequent operation, providing stable and efficient flow control for heavy industrial plants, process manufacturing facilities, and municipal infrastructure projects.

Eccentric butterfly valve

1) Design Standard: API 609.GB/T12238

2) End Flange: ASME B16.5.JIS B2212.DIN 2543,GB9113

3) Size: 2"-72"

4) Pressure: 150lb~300lb

5) Temperature: -29℃~425℃

6) Materials: Carbon steel,Stainless steel

7) Suitable Medium: Water,Oil,Gas,Steam

FAQ About Pneumatic Eccentric Butterfly Valve

What sealing performance can I expect from a pneumatic eccentric butterfly valve?

Our tri-eccentric pneumatic butterfly valve is engineered to achieve true zero leakage, making it perfectly suited for demanding industrial environments with strict sealing requirements, including hazardous medium transmission and high-pressure pipeline systems.

Is the pneumatic eccentric butterfly valve suitable for high pressure and high temperature applications?

Yes. This valve series can withstand pressure ratings up to 300LB and operating temperatures ranging from -29℃ to 425℃, with custom configurations available for more extreme high-temperature and high-pressure industrial scenarios.

How long is the service life of a tri-eccentric pneumatic butterfly valve?

Thanks to its non-contact opening and closing design and wear-resistant tri-eccentric structure, the valve delivers exceptional long-term performance with no deformation after extended operation, significantly reducing maintenance frequency and extending service life compared to standard butterfly valves.

Can a pneumatic eccentric butterfly valve be used for flow regulation?

Absolutely. In addition to reliable on-off shut-off control, our pneumatic eccentric butterfly valve offers excellent throttling and regulating performance, making it a versatile solution for both shut-off and flow regulation applications in industrial pipeline systems.