The road of transformation and upgrading of elbow pipe fitting industry in China
It is the article that connects two parts of conduit or other conduit fittings, include 3, 4, elbow, elbow, sealing head, flange to etc. Industrial metal pipe fittings have the characteristics of strong specificity, high added value and wide application, involving various fields of national economy. The products are mainly supplied to petrochemical, natural gas, shipping, electric power, medicine and other industries, especially the emerging fields of Marine engineering and nuclear power. The rapid development of the downstream industry of industrial elbow pipe fittings will drive the strong demand of large diameter, composite materials, high performance and high reliability pipe fittings. At present, the total demand for industrial metal pipe fittings in the power industry has declined, mainly due to the declining demand for installed pipe fittings for thermal power with low technical content and general performance. However, wind power flanges, nuclear grade pipe fittings and large diameter, non-standard, high-performance pipe fittings and other key components of thermal power units are still in short supply, some of which need to rely on imports. With the acceleration of China's urbanization infrastructure construction, the development of oil and gas fields, the transfer of world ship orders, the exploration of Marine resources, the construction of nuclear power stations and other projects will make the market that has been in short supply have a larger gap between supply and demand. According to the analysis, in the next few years, the annual consumption of middle and low pressure industrial metal pipe fittings in China will be about 1.5 million tons, and the annual consumption of high pressure industrial metal pipe fittings will be about 2.3 million tons. Combined with the export business, the annual demand of China's industrial metal pipe fittings industry will be about 4.5 million tons. The annual industrial consumption of medium and high pressure pipe fittings in the world is at least 23.4 million tons and the market capacity is more than 90 billion us dollars. Stainless steel pipe fitting operation needs to have a certain slope, the water supply stainless steel pipe fitting in the lowest point to install drainage plug or drain valve, stainless steel pipe fitting slope should slope to the drainage device, in order to facilitate the smooth flow of stainless steel pipe fitting and maintenance of the empty. The slope of stainless steel pipe fittings shall meet the following requirements: (D) the slope of water supply stainless steel pipe fitting installation should be consistent with the direction of medium flow of stainless steel pipe fitting, the slope should be consistent and the slope should be straight. The horizontal water supply pipe shall have a slope of 0.002 ~ 0.005, and generally it shall have a standard slope of 0.003 and a slope drainage device. (slope of force automatic spraying and water curtain fire fighting stainless steel pipe fittings, slope of water filling system should not be less than 0.002; The slope of the pneumatic system and branch pipe should not be less than 0.004 stainless steel pipe fitting after installation, slope, slope direction and stainless steel pipe fitting bracket elevation, level should be carefully checked, check, to ensure that the slope of stainless steel pipe fitting and the actual situation, design requirements.