Learn about triple eccentric butterfly valve (Chinese and English, high-definition pictures)

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If the valve stem axis deviates from the disc center and the body center at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, it is called a trieccentric butterfly valve. In many Asia-Pacific * * Among them, due to the limitations of the country's valve design and manufacturing level and the influence of traditional textbooks, there is still a great prejudice against butterfly valves. At the same time, advanced and developed industries in Europe and the United States * * However, butterfly valves are being vigorously promoted and actively used. The reason is simple, butterfly valves are no longer what they used to be. The applicable scope of the triple-eccentric butterfly valve can withstand pressures up to 2500 pounds, temperatures as low as -196 ℃ and as high as 700 ℃, sealing can reach 0 leakage, and control ratios as high as 100:1 or more. In other words, in various harsh and critical process control pipelines, whether it is an on-off valve or a control valve, as long as the type is properly selected, butterfly valves can now be used with confidence and at low cost. The excellent performance of butterfly valves is closely related to its continuous eccentricity, evolution and development. In order to meet the requirements of various working conditions, butterfly valves have evolved from concentric to single eccentric, double eccentric and triple eccentric.