Development of China's Valve Standards: Exploration of New Processes and New Standards

1. Promote the development of new technologies and new processes Strengthen the links between standards and scientific research, especially the research of major national science and technology projects, guide leading enterprises with advanced scientific research and technology, translate the results of independent innovation into standards, and promote new technologies and processes. development of.

The national valve standard committee is now formulating the national standard "valve intelligent electric device." Valve intelligent electric device is a new type of product developed abroad at the beginning of this century. China has mastered this technology through introduction and R&D, and it has developed very fast. Yangzhou Power Construction, Tianjin Ertong, Wenzhou Rotork, and Changzhou Power Station auxiliary equipment can all be produced, and the product quality is also quite good. The formulation of high-tech standards for "valve intelligent electric devices" has a great effect on promoting the development of industries and blocking or reducing imported products.

By converting a batch of new products and new technologies into standards, the cost has been reduced, the benefits have been improved, the functions of the products have been optimized, new products and new technologies have been quickly recognized by the market, and industrial progress has been promoted.

2. Development of standards for energy conservation, consumption reduction, new materials, etc., and promotion of industrial restructuring China's natural resources are limited. Therefore, the development of energy-saving, water-saving, and material-saving standards is one of the directions for the development of valve standards. Accelerate the elimination of products with low efficiency and high energy consumption, adjust the industrial structure, and promote the development and application of new technologies and new products.

In the aspect of material saving, the focus of the valve is on researching new-type materials and replacing new metal materials with new ones to save steel and precious metals.

The new ceramic valve adopts a new type of ceramic material to make the sealing and wearing parts of the valve, which improves the wear resistance, corrosion resistance and sealing performance of the valve product, and greatly prolongs the service life of the valve.

The raw materials for the manufacture of ceramics are extensive, and the cost is low. The use of common elements such as aluminum, carbon, and silicon can produce superior ceramic materials, which can save a large amount of metallic materials and rare mineral resources. Ceramic valves are used in electric power, petroleum, chemical industry, metallurgy, mining, sewage treatment and other industrial fields. They are wear-resistant, have good sealing, can minimize leakage, and will play an active role in promoting environmental protection. Following the development of technology, the valve standard committee organized the "Ceramic Sealed Valve" (JB/T10925-2005) standard to accelerate the ceramic sealing technology and promote the development of ceramic sealing materials.

In terms of reducing energy consumption, we will vigorously develop valve products with small flow resistance and low loss. In terms of power saving, the focus is on the electric devices of the valves. By selecting low-power and low-noise motors and improving the structure of the electric devices, the energy consumption of the electric devices is controlled.

3. Actively participate in international standard activities and accelerate the transformation of international standards for valves. The world has entered a period of economic globalization. The inevitable trend of economic globalization is the internationalization of standards. Through the study of the correlation degree between the ISO standard and China's valve standards, we have an overall understanding of the status of China's valve standards, determine the direction of adoption, and increase the intensity of the use of the standard. At the same time, it strives to participate substantively in the work of international standardization, integrate China's standards into international standards, and strive for the right to speak and take the lead in international standards. Due to historical reasons and regional reasons, currently the ISO/TC153 'Valve' has formed a pattern that has been dominated by Europe and the United States. Therefore, the National Valve Standardization Committee actively participated in and hosted the International Standards Conference on the one hand; on the other hand, it actively sent experts from China to join the standards committee 'TC', sub-committee 'SC' and the Standard Working Group of the International Organizations. The WC' takes seriously the vote of the draft international standard and provides the clauses favorable to China to the ISO/TC153 Secretariat so that the international standards can reflect our reasonable requirements.

4. Improve the safety of valve products and ensure the safety of equipment and personnel Many valves are used in pressure pipes, and safety is of utmost importance. The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China promulgated the "Technical Code for Safety of Special Equipment". Valves are used as one type of pressure piping components and are also included in special equipment. There are two main reasons for safety accidents caused by valve products. First, the product does not meet the requirements of the standard, such as the wall thickness of the housing, inspection requirements for welding joints, and material requirements. The other reason is the installation and use. improper. The National Valve Standards Committee has always attached importance to the safety requirements in product standards. These requirements are cited in the "Special Equipment Safety Technical Specifications" and become mandatory requirements, so as to ensure the safety of equipment and personnel to the maximum extent. In recent years, the valve standard committee has successively applied for standards such as "Standard Specification for Valve Shell Minimum Wall Thickness Requirements" and "General Requirements for Installation and Maintenance of Industrial Valves". The safety requirements of valve product standards and the revision of valve safety standards will be a focus of future work.