With the rapid development of economy and society, but also in the continuous development and progress of pipe industry, pipe products are constantly increasing, the quality and performance of the tube has been improved, a PPR pipe is the number of pipe products, how to develop PPR pipe fittings? PPR is the abbreviation of three propylene polyethylene, also known as random copolymer polypropylene pipe, using hot-melt connection method, there is a dedicated welding and cutting tools, has a high plasticity. The price is also very economical. The insulation performance is also good, the tube wall is also very smooth, does not include the inside and outside the silk joint. Generally used for embedded walls or deep well embedded pipes. PPR pipe is moderate price, stable performance, heat insulation, corrosion resistance, smooth wall, no scaling, piping system is safe and reliable, not penetration, the service life of up to 50 years. But the construction technology requires high, the use of special tools and professionals to carry out the construction, in order to ensure system safety. Compared with the traditional PPR pipe cast iron pipe, galvanized steel pipe, cement pipe and other pipe, with energy saving, environmental protection, high strength, corrosion resistance, with smooth inner wall has the advantages of scale, construction and easy maintenance, long service life, widely used in building water supply and drainage, urban drainage, City gas, electricity and cable sheath, industrial fluid transportation, agricultural irrigation construction, municipal, industrial and agricultural fields. In recent years, with the construction industry, municipal engineering, water conservancy projects, agriculture and industry and other industries market demand continues to increase, China's PPR pipe industry showed a high speed development trend. With the continuous improvement of environmental protection, health products, consumer durable and other aspects of the quality requirements, China's plastic pipe increase in production at the same time, the quality of products and constantly improve the level of industry's technological progress is accelerating, the brand scale of business increasing, new materials and new varieties are emerging, emerge in an endless stream system advanced design idea, functional the product is more obvious, further broaden the application field.