PP-R（polypropylene random）管又叫三型聚丙烯管和又叫无规共聚聚丙烯管或PPR管，具有节能节材、环保、轻质高强、耐腐蚀、内壁光滑不结垢、施工和维修简便、使用寿命长等优点，广泛应用于建筑给排水、城乡给排水、城市燃 气、电 力和光缆护套、工业流体输送、农业灌溉等建筑业、市 政、工业和农业领域。PP-R管采用无规共聚聚丙烯经挤出成为管材，注塑成为管件。
PP-R (polypropylene random tube is also called the three types of polypropylene pipe and is also called non random copolymerized polypropylene pipe or the PPR pipe, with energy saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall scale, construction and easy maintenance, long life and other advantages, widely used in construction to drainage, urban and rural areas to drainage, city gas, electricity and cable sheath, industrial fluid transportation, agricultural irrigation and other construction, municipal, industrial and agricultural areas. PP-R tube using random copolymer polypropylene through extrusion into the pipe, injection into the pipe.
近几年，随着建筑业、市政工程、水利工程、农业和工业等行业市场需求的不断加大，中国PPR管材行业呈现出了高速发展态势。据调查，2009年塑料管道生产量为580.4万吨，同比增长18.9%，2010年1-9月塑料管道生产量552.8万吨，同比增长28.23%。同时，随着消费者对产品环保、健康、耐用等方面的品质要求不断提高，我国塑料管道在产量增加的同时，产品质量水平不断提高，行业的技术进步不断加快，品牌规模企业不断增多，新材料、新结构品种不断涌现，先进的系统设计理念层出不穷，产品的功能性更加明显、应用领域得到进一步拓宽。分析认为，中国塑料管道市场占有率在所有管道中的比例已经超过30%。
PPR pipe with the traditional cast iron pipe, galvanized steel pipe, cement pipe and pipe compared with energy saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall scale, construction and easy maintenance, long life and other advantages, widely used in construction to drainage, urban and rural areas to drainage, City gas, electricity and cable sheath, industrial fluid transportation, agricultural irrigation, construction, municipal, industrial and agricultural areas.
In recent years, with the construction industry, municipal engineering, water conservancy projects, agricultural and industrial market demand continues to increase, China's PPR pipe industry showing a rapid development trend. According to the survey, in 2009 the production of plastic pipes for the production of 18.9% tons, an increase of in 2010 1-9 plastic pipe production volume of over tons, an increase of 28.23%. At the same time, with the consumers of environmentally friendly products, health and durable quality requirements continue to increase, China plastic pipe the output increases at the same time, product quality and continuously improve the level of, accelerating the technical progress of the industry, brand scale enterprises continued to increase, new materials, new varieties are emerging, advanced system design ideas emerge in an endless stream, the functionality of the product is more obvious, the application field of get further widened. The analysis shows that the share of China's plastic pipe market share in all of the pipeline has been more than 30%.
