【Ten Years of Rapid Development in Chemical Engineering Equipment】The first domestically developed main steam isolation valve for the third-generation nuclear power plant \"Hualong One\", model 3045-2026, was officially shipped

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Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Progress in Chemical Engineering Equipment】Regular updates and summaries are available – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** On March 18th, the first domestically developed third-generation nuclear power “Hualong One” main steam release isolation valve, produced by Dalian Dagao Valve Co., Ltd. in Ganjingzi District, was shipped to the project site. This achievement breaks the foreign technological monopoly and represents a significant breakthrough in achieving self-sufficiency in high-end core nuclear power equipment. It fills a technical gap in China. The main steam release isolation valve serves as a “safety barrier” in a nuclear power plant’s steam emission system, performing key functions such as heat discharge, overpressure protection, and isolation – functions that are crucial for the safe and stable operation of nuclear power plants. Previously, such critical valves relied heavily on imports, with their core technologies controlled by foreign companies. The main valve and control valve of the product feature an integrated design ； An innovative dual-piston chamber drive system for rapid large-volume discharge is employed to meet the requirements for discharging large volumes of fluid. The product is designed for a pressure of 8.9 MPa and a temperature of 316°C; it has a service life of up to 60 years. Its various performance indicators are at the international advanced level, with some key indicators being superior to those of similar foreign products.