Broad prospects for plastic pipe development

According to the US Advanced Materials Intelligence (AMI) survey, the total length of European pipelines for hot and cold water transportation is about 1.6 billion m, and half of them, or 7.7 million m, are plastic pipe pipes. It is expected that by 2008, the growth rate of the entire cold and hot water pipeline market will reach 0.9%, while the share of plastic pipe and pipe is expected to increase by 4.1%. The use of plastic tubing for hot water transmission is mainly used in geothermal facilities, heating facilities and drinking water pipelines. Due to its obvious advantages, the share of plastic pipes used in modern geothermal systems has accounted for 96% of the total market share.

In recent years, with the continuous deepening of China’s reform and opening up and the country’s increased investment in infrastructure construction, the domestic demand for plastic pipes has maintained an average annual growth rate of more than 15%, especially in the construction of urban water supply and drainage pipe networks. Plastic pipes play an increasingly important role. Compared with the traditional cast iron pipes, the plastic pipes have light weight and long service life. In general, the service life of plastic pipes is more than 50 years, basically reaching the same service life as the building.

In some special fields, the application of plastic pipes is very large. For example, the most eye-catching ground-radiant heating industry currently uses PE-Xa or PE-RT pipes as heating pipes, which heats the entire room through floor radiation, providing comfort, safety, and environmental protection. The advantages of energy saving and other advantages have gradually become the first choice for winter heating in the northern regions. Even in some cities, no one is interested in the new building without heating. Driven by strong market demand, enterprises engaged in floor heating plastic pipe production broke out almost overnight. Among them, Qinhuangdao Hongyue Plastics Co., Ltd. has become the largest domestic production base for floor heating pipe. The company's production and sales of PE-Xa pipes in 2008 First in the country.

At the same time, the application of plastic pipes has been further broadened. In addition to municipal and construction supply and drainage pipelines, agricultural (water supply, irrigation and drainage) pipelines continue to grow, rural drinking water reform, solar water pipelines, municipal sewage, ground source heat pump pipelines, communications The proportion of applications in the power, gas, heating, medical, and other industries has increased significantly. Nowadays, plastic pipes have been widely used in many fields such as construction and drainage, building heating, urban gas transmission, urban tap water, municipal drainage, sewage, rural drinking water reform, agricultural irrigation, drainage, electricity, communications, and industrial.

During the “Eleventh Five-Year Plan” period, the annual demand for building plastic pipes in China is about 5 billion meters. By 2010, China's plastic pipe production will reach 4.5 million tons, and by 2015 it will reach 6 million tons. At that time, China will become the world's largest producer of plastic pipes.

Plastic pipes not only have the advantage of corrosion resistance, but also with the continuous increase of the cost of copper and steel, the market for plastic pipes for water transmission is booming. Cincinnati Extrusion Technology Co., Ltd. provides tailor-made extrusion lines for different raw materials such as PEX, PP, PE-RT and composite materials to meet the growing market demand.

Among them, PEX tubes are widely used, accounting for about 70%. In contrast, steel pipes and copper pipes are still the main materials for heating facilities and sanitary pipes, accounting for about 60% of the market share. Synthetic materials and PEX are the main raw materials for plastic pipes. By 2008, the United States Advanced Materials Intelligence Agency (AMI) predicted that the maximum growth rate for composite pipes would reach 8.4%, PE-RT management would increase by 4.8%, and PEX management would increase by 2.9%. At the same time, market researchers predict that the market share of steel pipes will decrease by 1.6%, and copper pipes will decrease by 4%. Raw materials challenge equipment suppliers.

Hot water pipe diameter production range is generally 12 ~ 63mm, the most commonly used outside diameter 16mm and 20mm, wall thickness from 2mm to 3.5mm hot water pipe. Depending on the application, the manufacturer should first make it clear that not all pipes produced from plastic materials are suitable for the transport of drinking water. For example, neither PEX-a nor PEX-b is suitable for drinking water transport, while PEX-c is suitable. In addition to various types of cross-linked PE, such as PE-RT, etc., PP-R, PB, C-PVC raw materials and aluminum-plastic composite materials are also widely used. The drinking water pipes mainly include PE-RT, C-PVC and PEX-c. Different types of PEX-a and PEX-b are used in geothermal and heating systems. In order to meet the high quality and low cost requirements of pipe manufacturers, it is necessary to make reasonable adjustments to each pipe extrusion line for different processing materials.

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