Three-eccentric butterfly valve

Short Description:

This series of butterfly valves are a new generation of high-performance products developed by engineers of our company. Its performance has been at the advanced level at home and abroad. It is widely used for cutting off or regulating medium flow on industrial pipelines such as low pressure, medium pressure, high pressure, steel, metallurgy, petroleum, chemical, electric power, etc

Product Detail


Product Tags

DN: DN50-DN800
PN: PN1.0MPa/PN1.6MPa
Connection type: wafer, flange
Operation: Hand wheel, worm gear, Pneumatic, Electric
Body: WCB, CF8, CF8M, CF3M, 904L, C4
Disc: WCB, CF8, CF8M, CF3M, 904L, C4
Medium: water, gas, oil, Acid-base liquid
Temperature: -29℃≤T≤150℃
Standard: GB/T12238-2008 API JIS DIN
Face to face: GB/T12221 API JIS DIN
Flange End: GB/T9113 API JIS DIN
Testing and inspection: GB/T13927 API JIS DIN

Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage and municipal construction and other industrial pipelines with medium temperature less than or equal to 425 ℃ for regulating flow and carrying off fluid. Materials are divided into: cast iron, cast steel, stainless steel, its main features are: Tritec in strict accordance with the specification requirements of API609, in order to prevent the deformation of butterfly plate caused by the influence of fluid pressure and temperature, valve stem dislocation, sealing surface bite, two separate thrust rings are installed on the upper and lower sides of the butterfly plate, so as to ensure the normal operation of the valve under any working conditions;

At the same time, in order to prevent the sudden accident caused by the valve stem breakage and flying out caused by unknown reasons, the independent stem flying out prevention mechanism is designed at the inside and outside of the lower end of the valve, which ensures that the pressure level of Tritec can reach 2500 pounds. In terms of valve leakage, traditionally, the leakage of valve seat, i.e. internal leakage, is often focused on, while the leakage of packing part is ignored, that is, external leakage. In fact, in today’s society where environmental problems are increasingly valued, it has become an indisputable fact that the harm of external leakage is far greater than that of internal leakage. Compared with the rotary valve stem, the valve stem is designed to be 90 ° and the valve stem is designed to be more long than that of the rotary valve stem When the external leakage test is carried out under EPA 21 specification, the standard sealing performance is guaranteed to be below 100ppm

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