【Ten Years of Rapid Development in Chemical Processing Equipment】Domestically produced DN4500 double-disc control butterfly valves from 1977 to 2021

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This post was last edited by Desert Fish on 2023-1-2 at 09:56. Witnessing the ten-year rapid development of chemical processing equipment, we celebrate the prosperity and strength of modern China. Wishing everyone a happy New Year and peace, health, and well-being for their families. By sharing our thoughts, we can encourage more participation and make the discussions more lively. The HaiChuan forum becomes even better with your involvement; we welcome everyone to participate more actively in the discussions here. -------------------------------------------------On December 9–10, 2021, the appraisal meetings for the domestically produced products developed by Wuzhou Valve Co., Ltd., namely the “NPS40 Class1500 fully welded ball valve” and the “DN4500 double-disc control butterfly valve”, were a complete success. This appraisal meeting was organized by the China National Machinery Industry Federation and the China General Machinery Industry Association. Experts from **Pipeline Network LNG Receiving Station Management Branch, **Pipeline Network Project Construction Management Branch, the Valve Branch of the China General Machinery Industry Association, Hefei General Machinery Research Institute Co., Ltd., the School of Energy Engineering at Zhejiang University, Sinopec Ningbo Engineering Co., Ltd., China Global Engineering Corporation, **Pipeline Network Group West-East Gas Transmission Branch, Sinopec Engineering Co., Ltd., China National Petroleum Pipeline Engineering Corporation Shanghai Branch, and Offshore Oil Engineering Co., Ltd. participated in the appraisal. The experts and representatives present visited the production and testing sites, witnessed the performance tests of the products, listened to the summary reports on the development technology, and reviewed relevant technical documents. Following inquiries and discussions, the appraisal committee concluded that the NPS40 Class1500 high-pressure large-diameter fully welded ball valve developed fills a gap in domestic production; its key performance indicators are at the advanced level of similar international products, and it is recommended for widespread use. The DN4500 double-disc adjustable butterfly valve fills a gap in the domestic market; it possesses independent intellectual property rights, and its key performance indicators are at the advanced level of similar international products. Its use is recommended.