Advantages and disadvantages of control valve production in China?

First, the advantages of China control valve production

1. A large part of the manufacturing process of labor cost advantage control valve is metal processing, that is, using machine tools to produce parts of various shapes according to the requirements of drawings, and then assembling them into products by workers. Due to the complex types of valves, automatic assembly and production can not be realized at present, and labor costs account for a large share of the overall cost. Therefore, the labor cost of China valve industry still has great advantages. Since Fisher of the United States set up a joint venture in Tianjin in the 1970s, world valve giants such as KOSO, YAMATAKE, SAMSON, EBRO, ARCA, TYCO, FIOWSERVR have set up joint ventures or wholly-owned production enterprises in the United States, which greatly reduced the production cost and rapidly expanded the market share of their products in China. 2. Huge Market Advantage With the global industrial transfer and the huge demand for energy and light industrial products from China's national economic development, China's construction projects in petrochemical, chemical, electric power, steel and other fields are overwhelmed. Since 1990s, foreign chemical giants have begun to increase their investment in China. According to statistics, almost all the top 500 petrochemical companies in the world have invested and set up factories in China. Among the top 75 chemical producers in the world, Dow Chemical, DuPont, ExxonMobil, Huntsman, General Electric, BASF, Chevron-Philips, Shell, BP, Rohm and Haas, Atofina and Degussa have all settled in China. Faced with this huge market demand, domestic enterprises have a huge competitive advantage, that is, they are the closest and most sensitive to the market, and they have strong competitiveness compared with foreign enterprises in product production and delivery, which is beyond the reach of foreign enterprises. Due to its small size, the production cycle of the control valve is very short. In the case of complete raw materials, the production cycle does not exceed one week. When it is necessary to reflect the rapid demand, this time advantage can be transformed into a competitive advantage. Moreover, when foreign products are sold to China, transportation cost, tariff cost and other factors must be considered, which will inevitably reduce their competitiveness in the domestic market. 3. Advantages of processing technology In the processing of ordinary valves and control valve bodies, the domestic manufacturing level has reached the level of developed countries in the 1990s or even higher. Especially in the casting, cutting and other processing of ordinary steel, our products have been certified by TUV of the European Union, and our products have been able to enter the European market. This is our biggest technical advantage in the whole valve industry at present. We are backward compared with developed countries, but our technology is ahead compared with other developing countries and regions in the world. We can not only export complete sets of valve products to Latin America, the Middle East and other regions, but also export our processed parts to Europe. With the continuous improvement of the production technology of electronic communication products in China, if we can master the design and production technology of control elements in the field of control valves, our technology in the field of control valves can also be improved rapidly. Second, the drawbacks of China's control valve

1. The gap of product quality was found through investigation. Domestic enterprises generally believe that the gap between domestic control valves and foreign enterprises is 5- 10 years, but most foreign-funded enterprises believe that the gap between domestic control valves and foreign enterprises is more than 20 years. Domestic enterprises believe that the advantages of foreign control valve products mainly lie in product quality, brand and enterprise strength. Through investigation, more than 60% enterprises think that the quality defects of domestic control valves are mainly short service life and low appearance quality. 1/3 enterprises think that internal leakage and unreliable actuator are the defects of domestic control valves, and a few enterprises think that the defects of domestic control valves are inaccurate materials, control accuracy, and insufficient stability and safety. 2. The gap of design ability. In the mid-1980s, the domestic valve industry began to adopt international standards and jointly design and develop, and most products adopted international standards and advanced foreign standards. However, due to the implementation gap, the quality level of domestic valve products is still lower than the requirements of international standards. The dimensional accuracy of castings is poor, and the image leakage inside and outside the valve is serious. Even some valves can't work reliably within a maintenance period, with incomplete specifications and poor reliability. In terms of valve research and development, there is a big gap between the domestic overall level and the foreign level. Due to the limitation of funds and practical experience, our professional research institute is basically unable to study high-precision valves. And our enterprise, with the gradual improvement of enterprise benefits, has just begun to carry out research on valve design, new materials and environmental protection, and the level is quite different. 3. The gap in industrial scale At present, there are about 3,000 valve enterprises in China, and the annual output value of the largest enterprise in the whole industry does not exceed 300 million yuan. In addition to dozens of large enterprises in the production process using advanced CNC machine tools, most of them still stay in the scale of family workshop production. No matter the quantity or quality of products, it can't be compared with world-famous enterprises. In market competition, the usual means are price war and unfair competition. The result of this vicious competition is often a one-shot deal, and enterprises cannot obtain long-term market opportunities, and at the same time, they cannot create their own brand products. 4. Gap control valve manufacturing enterprises in enterprise management belong to small and medium-sized enterprises that allow market liberalization and competition in the national enterprise management system. On the one hand, this makes a large number of private enterprises enter this industry, which intensifies the competition. At the same time, we constantly urge enterprises to improve themselves in software first to avoid competition failure. The control valve manufacturing enterprises in the southeast coastal areas of China have reached a high level in enterprise quality management system and administrative personnel management. However, some large control valve enterprises in Northeast and Northwest China have carried out joint-stock reform, but the excessive proportion of state-owned shares still retains the disadvantages caused by unclear asset owners. The enterprises are slow to operate and have chaotic development, and some enterprises have already experienced new crises. 5. Backwardness of basic industries An important reason for the backward product quality of domestic control valve manufacturing industry lies in the backwardness of basic industries, among which steel, springs, bolts and nuts are the most basic components in manufacturing industry, which seriously affect control valves. Take steel as an example. Although China is already the largest steel producer in the world, the types of steel in China are still at the level of "commodities", and many steel products that meet special needs are still unable to be produced. However, control valves are widely used in petroleum, chemical industry and other industries, controlling complex media with different chemical characteristics, and many process conditions have harsh conditions such as high temperature and high pressure. At present, the control valve used in this working condition, the domestic materials can not meet the needs, we must use imported valves. As for the basic parts, seemingly small parts still need to be imported because of poor raw material technology, which affects the overall quality of the valve. For example, the spring is the most used widget in the control valve actuator. For the same elastic element, the average service life of domestic products is only half that of foreign products, which is due to the processing technology, but the quality of spring steel is the main factor. The same problem exists in basic components such as sealing rings, bolts and nuts. These seemingly simple components play an unusual role in high-quality control valves. 6. The market competition is not standardized. At present, the competition in the domestic control valve industry is very irregular. Take the most popular bidding as an example. The bidding system of this project was originally designed to obtain high quality and low price products under the market economy. Strict bidding system has brought fair market opportunities to enterprises and satisfactory and qualified products to owners. However, in China, the common bidding phenomenon is that they compete with themselves, secretly collude with invalid bidding and other abnormal means. For a long time, many unfair phenomena have become the rule. A new enterprise can't survive in this industry if it doesn't operate according to various rules. The consequences of such unfair competition means and methods are often the decline of product quality and vicious competition among enterprises. 7. The outlet of domestic control valve enterprises From the survey results, it is found that control valve enterprises believe that the main factors restricting the development of control valve industry are low product quality, insufficient research and development ability and vicious competition of products. The way out for enterprises lies in improving product quality, developing new products, strengthening internal management and adjusting product organization. Reference: Cai Ying of pump valve. com