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As a leading cryogenic butterfly valve manufacturer in China, we produce valves conforming to API 609, ASME B16.34, and EN 593 standards. Our valves cover a size range from 2 to 128 inches, suitable for Class 150-900 LB applications. Crafted from high-quality materials such as ASTM A351 CF3, CF8, CF3M, and CF8M, these valves are specifically designed for use in LNG and LPG industries. Trust our expertise for reliable and efficient cryogenic butterfly valves that meet the stringent requirements of your industry.
The Cryogenic Butterfly valve is suitable for service of working temperature down to －196℃, such as LNG, LPG industry. Three eccentric laminate hard seal flange butterfly valve is a long-life, energy-saving butterfly valve. Its structure adopts the three-dimensional core principle design, the valve seat adopts the laminate stainless steel with graphite structure of hard and soft sealing compatibility, with exquisite processing and advanced technology. This product is composed of valve body, butterfly disc, laminate seal as valve seat, valve stem, transmission mechanism and other main components. It is widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage pipeline.
Cryogenic Butterfly Valve-Features
There is three eccentric (offset), the first eccentric, the shaft deviated from the centerline of sealing face; The second eccentric, the shaft deviated from the centerline of pipe and valve; The third eccentric the distinctive included angle between oblique taper angle of eccentric seat and centerline of pipe, thus making seat completely disengaged from the sealing ring during the whole process of open and close. This structure not only uses cam effect, but also eliminates the possibility of abrasion and leakage.
