Butterfly Valves

Double Eccentric Butterfly Valve

The hard-sealed butterfly valve is a newly developed long-life, energy-saving butterfly valve by our company. It consists of main components such as the valve body, butterfly disc, sealing ring, and transmission mechanism. Its structure is designed based on the two-dimensional or three-dimensional eccentric principle and features a new manufacturing process that accommodates both elastic and multi-layer hard-soft seals. This design reduces torque during operation, achieving energy efficiency and labor-saving benefits. At the same time, it ensures the valve's overall reliability in corrosion resistance, high temperature tolerance, and wear resistance. Common types of hard-sealed butterfly valves include wafer type, lug type, and flanged type butterfly valves.…
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Product Description
The hard-sealed butterfly valve is a newly developed long-life, energy-saving butterfly valve by our company. It consists of main components such as the valve body, butterfly disc, sealing ring, and transmission mechanism. Its structure is designed based on the two-dimensional or three-dimensional eccentric principle and features a new manufacturing process that accommodates both elastic and multi-layer hard-soft seals. This design reduces torque during operation, achieving energy efficiency and labor-saving benefits. At the same time, it ensures the valve's overall reliability in corrosion resistance, high temperature tolerance, and wear resistance. Common types of hard-sealed butterfly valves include wafer type, lug type, and flanged type butterfly valves.
Features & Benefits

 High-performance Seat Adjustment - Provides optimized flow control and stability.

 Double Eccentric Design - Enhances sealing effectiveness, reduces torque, and extends service life.

 Effective Sealing - Prevents leaks and improves overall system efficiency.

 Long Service Life - Due to its high-quality construction and materials, it offers enhanced durability.

 Excellent Flow Regulation Capability - Precisely controls flow to meet diverse industrial application requirements.

 High Precision Flow Characteristic Curve - Ensures accurate and predictable flow output, enhancing system controllability.

 Compact Assembly Space - Compact design suitable for space-constrained installation environments.

 Lightweight - Easy to handle and install, reducing structural load.

 Easy Maintenance - Simple design for ease of maintenance, lowering long-term operational costs.

General Information

◎ Material: Carbon Steel, Stainless Steel, Alloy Steel Nominal Size: NPS 2"~64", DN 50~1600

◎Pressure Rate: Class 150~600, PN 10~100

◎Temperature Range: -46°C~+200°C

◎Operator: Manual, Pneumatic, Electric, etc..

◎ Application range: Suitable for water supply and drainage and gas pipelines in food, medicine, chemical industry, petroleum, electric power, light 

textile, paper making, etc. to adjust the flow and intercept the medium.

Technical Specification

◎ Design Standard: API 609, GB/T 12238

◎ Pressure Temperature Rate: ASME B16.34, GB/T 12224

◎ Face to Face: ASME B16.10, GB/T 12221, EN558

◎ Flange Standard: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592, EN 1092, GOST 33259

◎ Butt Weld: ASME B16.25, GB/T 12224

◎ Pressure Test: API 598, API 6D, GB/T 13927, JB/T 9092, GOST 9544

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