Photo of nuclear grade pneumatic instrument valve
Nuclear grade pneumatic instrument valve
2025-05-23
On September 5, 2022, the prototype appraisal organized by the China Machinery Industry Federation and the China General Machinery Industry Association was passed. The appraisal opinion was that the developed nuclear grade pneumatic instrument valve has independent intellectual property rights, fills the domestic gap, and all performance indicators have reached the advanced level of international similar products. It can be promoted and applied in CAP1400/CAP1000 and other nuclear power units.
Technical Parameters
Product Details
Scope of application: Nuclear grade instrument valves (pneumatic) (H2J651R-1885R-5/8) are mainly used in the primary sampling system of pressurized water reactor nuclear power plants to control the cutting off and circulation of media.
Application status of achievements: Dalian Dagao signed procurement contracts for nuclear level 2 pneumatic globe valves (PV17) for Shandong Haiyang Units 3 and 4 and Zhejiang Sanmen Units 3 and 4 respectively with State Nuclear Instrumentation System Engineering Co., Ltd. in 2023, and is expected to complete the supply this year; We are currently participating in the bidding for the nuclear level 2 pneumatic globe valve (PV17) of Lufeng Units 1 and 2 and Xudabao Units 1 and 2. We are confident that we can meet the requirements of the bidding documents and obtain this tender.
At present, there are no other manufacturers in China that have developed nuclear grade instrument valves (pneumatic). The successful research and development of this achievement has broken through the technical bottleneck of domestic instrument valves and has the conditions for application in CAP1400, CAP1000, and AP1000 nuclear power units. It is not only of great significance for achieving 100% localization of CAP1400 third-generation nuclear power plant equipment, but also can promote the independent nuclear power brand of CAP1400 to go global and gradually enter the international market.
Intellectual property situation: The intellectual property achievements independently developed by the nuclear grade instrument valve (pneumatic) project have been searched and analyzed for patents at home and abroad, and no obstacles have been found. The intellectual property achievements of the project are independent and controllable. One utility model patent (a nuclear grade pneumatic instrument valve) has been authorized, and one invention patent (a nuclear grade pneumatic instrument valve) has been accepted.
Editor: Li Yuhang
Verified by: Xia Yuanhong
Reviewed by: Wang Shuai
Department: Technical Development Department
Date: May 22, 2025