In the morning of June 24, Zhejiang pump valve product quality inspection center took the lead in organizing the formulation, Zhejiang yingri Valve Manufacturing Co., Ltd. was the main drafting unit; Zhejiang pump valve industry association, Zhejiang valve Standardization Technical Committee, Baoyi Group Co., Ltd., Yongjia County metrological verification Institute, Yongjia County pump valve science and technology innovation service center, Yongjia Rongxin Technology Co., Ltd., Yongjia Sanjin Machinery Co., Ltd., Yongjia Rongxin Technology Co., Ltd The standards review meeting was held in Hangzhou and Hilton Doubletree Hotel. Senior experts from Zhejiang Fangyuan Testing Group Co., Ltd., Wenzhou Vocational and technical college, Zhejiang pump valve industry association, Shanghai Tianxiang quality service Co., Ltd. and Yingde gas were invited to participate in the review.

       It is understood that the drafting process of the standard has gone through two years, and opinions and suggestions of the same industry, users and research institutions in China have been extensively solicited, and a total of 17 modification opinions and suggestions have been collected and adopted. The experts and representatives attending the meeting discussed and deliberated the scope determined in the draft for examination and approval of the standard, i.e. terms and definitions, structure and model, basic requirements, technical requirements, test methods, inspection rules, marks, supply requirements and quality commitment of oxygen valves; discussed and analyzed various technical indicators, including pressure test, shell wall thickness measurement, material composition analysis and mechanical properties Whether the contents are consistent with the national standards and technical requirements are proposed.

       It is understood that, compared with the main indexes of the current domestic and international standards, the standard has the following features: "the requirements for the manufacturing capacity of oxygen valves", "the wall thickness requirements for different materials of oxygen valves", "the requirements for the leakage test", "the anti-static structure and test of the valve closure stem and valve stem valve body for oxygen" and "the valves for oxygen are added" "Door fire technology requirements and testing", "clearly put forward inspection capability requirements" and "clear product quality commitment and service requirements" and other seven advanced indicators.

       As an important branch of general machinery, its products are widely used in petroleum, chemical, metallurgy, electric power, urban construction and environmental protection industries. At present, with the continuous and stable development of the state-owned economy and the gradual expansion of the state's investment in fixed assets, the start-up of large-scale coal gasification projects and the development of metallurgical industry need a large number of oxygen valve products; At the same time, with the expansion of the country's opening up, the reduction of international trade barriers and the adjustment of product structure in developed countries, made in China has become the most competitive brand in the world, and the manufacturing of oxygen valves will usher in a broader international market space.

       Liao Xiuhe, chairman of Zhejiang yingri Valve Co., Ltd., the main drafting unit, believes that recently, the state has invested heavily in the steel industry, and a large number of oxygen valves are needed in the steel-making process. However, leakage and explosion accidents caused by the quality problems of oxygen valves occur from time to time, and the safety problems are increasingly prominent. Therefore, drafting and formulating the "made in Zhejiang" standard for oxygen valves can improve the product quality, It is of great significance to ensure safety.