【Ten Years of Rapid Development in Chemical Processing Equipment】Domestic production of NPS32 Class600 large-diameter axial flow control valves from 1976 to 2022

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Witnessing the ten-year rapid development of chemical processing equipment, I praise the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families enjoy peace and health. By contributing our ideas, we can create a more lively atmosphere; HaiChuan becomes even better with your participation. Everyone is welcome to join in the forum discussions. ------------------------------------------------- On March 9, 2022, the China National Machinery Industry Federation and the China General Machinery Industry Association organized a meeting in Leshan, Sichuan, to assess the domestic production capabilities of \"NPS32 Class600 large-diameter axial flow control valves\". The large-diameter axial flow control valve product subject to this evaluation was jointly developed by the Project Management Branch of **PetroChina Pipeline Network Group Co., Ltd. and Sichuan Changyi Oil and Gas Transportation Equipment Co., Ltd. for the China-Russia East Route Natural Gas Pipeline Project Department. The experts on the appraisal committee come from various organizations, including the Valve Branch of the China General Machinery Industry Association, the Chinese Petroleum Society, Hefei General Machinery Research Institute Co., Ltd., the West-East Gas Transmission Branch of **Pipeline Network Group**, the Western Pipeline Company of **Pipeline Network Group**, and China National Oil & Gas Pipeline Engineering Corporation. The appraisal committee concluded that the \"NPS32 Class600 large-diameter axial flow control valve\", developed jointly by the Project Management Branch of **PetroChina Pipeline Network Group and Sichuan Changyi Oil and Gas Transportation Equipment Co., Ltd., features a rational structural design, appropriate material selection, and technical parameters and performance indicators that meet the requirements specified in the development agreement, technical specifications, and relevant standards. The R&D capabilities of the development unit, its manufacturing process equipment, testing conditions, and quality assurance system meet the production requirements. The developed large-diameter axial flow control valve possesses independent intellectual property rights, filling a gap in the domestic market. Its main technical parameters and performance indicators are at the advanced level of similar international products; after industrial trials, it can be widely applied in natural gas metering stations and long-distance pipelines.