Hualong No.1 Main Feedwater isolation valve develo

2022-08-14
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Recently, the 18 inch class900 Hualong 1 main water supply isolation valve developed by CNNC suvalve science and Technology Industry Co., Ltd. won the gold medal of "2016 China (Shanghai) international valve Expo". The Main Feedwater isolation valve is mainly used in the main feedwater flow control system of the nuclear power plant, which can realize the control of the main steam pipe of the nuclear power plant. Recently, the 18 inch class900 Hualong No. 1 Main Feedwater isolation valve developed by CNNC suvalve Technology Industry Co., Ltd. won the gold medal of "2016 China (Shanghai) international valve Expo in key fields"

the Main Feedwater isolation valve is mainly used in the main feedwater flow control system of the nuclear power plant, which can realize the rapid isolation of the main feedwater line of the main steam pipeline of the nuclear power plant. Due to the high overall height and large electrical installation weight of the Main Feedwater isolation valve, high requirements are put forward for the assurance of the seismic performance of the valve in early summer. For this reason, the company realizes the rapid opening and closing of the valve through the use of proprietary structural design such as buffer device, with large stroke and large opening and closing torque, while ensuring the safety and reliability of the valve. The whole design has high reliability, mature technology, and has been tested and verified, and has passed the appraisal organized by the Ministry of science and technology and information technology of China Nuclear Power Group

through the successful development of the prototype, CNNC technology has mastered the design, manufacturing and testing methods of the Main Feedwater isolation valve, significantly improved the comprehensive technical capacity of CNNC technology in the field of valves, reached the international advanced level of polyethylene (PE) pipes for water supply gb/t 13663 ⑵ 000, filled the domestic gap, and met the needs of localization of nuclear power plant equipment

from March 28 to 29, Sheng Genlin, the Executive Deputy Secretary General of the Secretariat of Jiangsu Valve Association, visited Suzhou Newell Valve Co., Ltd., Jiangsu Shentong Valve Co., Ltd., Jiangsu yivalve Group Co., Ltd., Yangzhong Valve Factory Co., Ltd., Suzhou Delan Energy Technology Co., Ltd. and other member enterprises. We mainly discussed with them about the change of the association in the near future and some work to be carried out, and briefed them on the elongation at break; We also communicated with them and learned about the production and marketing operation of these six enterprises, as well as the development of the industry. And visited the production sites of these enterprises. The production was busy, the orders increased, and the production and sales were in a good situation

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