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Zhongguan Valve supplies High Performance Double Offset Butterfly Valve for industrial flow control applications, combining double eccentric structure design, alloy steel construction, and PTFE sealing technology to support demanding pipeline systems. Zhejiang Zhongguan Valve Manufacture Co., Ltd. has focused on valve manufacturing for more than 19 years, with production bases located in Tianjin and Wenzhou, Zhejiang.
The double offset design is the main structural feature that distinguishes this valve from conventional concentric butterfly valves. In this structure, the stem axis is offset from the centerline of the valve body and the sealing surface.
This quarter-turn structure allows the valve to complete opening and closing through a 90° rotation, providing simple operation and lower maintenance requirements for industrial pipeline systems.
Zhongguan Valve selects alloy steel for the valve body and disc, combined with PTFE as the seat material. This configuration focuses on mechanical strength, sealing performance, and corrosion resistance.
Provides structural strength and wear resistance under industrial conditions
Maintains mechanical stability during frequent rotary operation
Provides low friction, corrosion resistance, and reliable sealing
Reduces sealing wear and improves operating durability
Zhongguan Valve produces butterfly valves covering wafer, lug, U-section, and flange structures. Different connection forms allow the valve to match various industrial pipeline layouts.
The performance of an industrial butterfly valve depends not only on structural design but also on manufacturing accuracy. Zhongguan Valve has complete production equipment and assembly facilities, including:
The production process focuses on key manufacturing steps such as component installation, sealing structure assembly, and pressure testing to maintain stable valve performance.
The double offset design is developed for applications requiring reduced sealing wear and longer operating durability compared with traditional concentric structures.
The valve is applied in industrial systems where reliable flow control and shut-off performance are required.
Selection mainly depends on operating temperature, medium characteristics, pipeline design, and required control method.
Zhejiang Zhongguan Valve Manufacture Co., Ltd. has been involved in valve manufacturing for more than 19 years. The Tianjin production base was established in 2016, while the Wenzhou production base was established in 2019 in Oubei, Yongjia, Zhejiang, known as the hometown of pumps and valves.
The main production diameter range is DN40–DN1600. Zhongguan Valve also integrates northern water valve supply chain resources and southern industrial valve supply chain resources, covering additional valve categories including ball valves, gate valves, foot valves, strainers, check valves, and control valves.
Zhongguan Valve produces valves with required ISO certificates and can provide butterfly valves equipped with WRAS-certified valve seats when required. The company has cooperation experience with overseas stockists and engineering project companies, with existing markets mainly covering Vietnam, Malaysia, and Singapore. Review our certificates and cooperative cases for more detail.
A double offset butterfly valve uses two eccentric positions between the valve stem, disc, and sealing surface. This structure allows the disc to move away from the seat during opening, reducing friction and improving sealing durability.
The standard seat material is PTFE. It provides low friction characteristics, corrosion resistance, and stable sealing performance across various industrial media environments. WRAS-certified valve seats are also available when required.
The supplied technical specification indicates an approximate operating temperature range from -40℃ to 600℃. The final operating condition depends on the selected valve configuration and application requirements.
A concentric butterfly valve uses a centered shaft structure, while a double offset butterfly valve uses an eccentric design that reduces disc-seat contact during operation. This difference helps decrease wear and improves suitability for demanding industrial applications.
Need a high performance double offset butterfly valve for your pipeline? Share your medium, DN size, temperature range, and control method.
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No. 838, Oubei Avenue, Yongjia County, Wenzhou City, Zhejiang Province, China
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