PVC Pipe Market Application

Ningbo Fangli Technology Co., Ltd. is a mechanical equipment manufacturer with nearly 30 years’ experiences of plastic pipe extrusion equipment, new environmental protection and new materials equipment. Since its establishment Fangli has been developed based on user’s demands. Through continuous improvement, independent R&D on the core technology and digestion & absorption of advanced technology and other means, we have developed PVC pipe extrusion line, PP-R pipe extrusion line, PE water supply / gas pipe extrusion line, which was recommended by the Chinese Ministry of Construction to replace imported products. We have gained the title of “First-class Brand in Zhejiang Province”.

PVC-U pipes have the advantages of general plastic pipes, such as low density, convenient handling, loading and unloading, and installation; good chemical resistance, not easy to be corroded; good insulation; smooth inner wall, small fluid resistance, and large conveying capacity; it does not affect water quality; good water tightness, etc. In addition, PVC-U pipes also have advantages that general plastic pipes do not have, such as high strength, high ring stiffness, flame retardancy, weather resistance, and high cost performance. Based on the performance and advantages of PVC-U pipes, it has been widely used in the following fields: ① Urban and rural water supply pipes, buried drainage pipes, agricultural irrigation pipes; ② Building water supply and drainage pipes, electrical pipes; ③ Outdoors Telecommunications cable sheathed pipelines; ④ Pipelines for chemical engineering, salt (sea) water transportation engineering, sinking engineering; ⑤ Pipelines for mine piping engineering and highway engineering.

PVC-U pipeline has always been the most widely used plastic piping system in the world because of its high modulus, high strength and low price. However, for a long time, the performance of PVC pipes has not improved much, and PVC-U pipes are still the mainstay. Due to the obvious progress in the performance of resins such as HDPE (such as PE63, PE80 and PE100), in the selection of pipe materials in some areas, PVC and PE have formed competition. In the past ten years, foreign countries have continuously explored the performance of PVC-U piping system and broadened the application field of PVC-U piping. The following remarkable results have been achieved: From the perspective of formula optimization, the development of impact performance and crack resistance performance High-strength modified PVC piping system (PVC-M); from the perspective of process improvement, biaxially oriented PVC pipes with high strength, high toughness, impact resistance and fatigue resistance are far superior to ordinary PVC-U pipes. (PVC -O). PVC-M and PVC-O pipes overcome the brittleness of PVC-U pipes, and their toughness is significantly improved, while maintaining a strength close to that of PVC-U. Therefore, higher design stress can be adopted, which has the advantages of saving materials and increasing the diameter, which is in line with the general direction of saving resources, so that PVC-M and PVC-O pipes are widely used in urban and rural water supply and mining pipelines.

 In the process of maintaining and expanding the PVC-U pipe market, we should not only rely on the price advantage, but should make use of technological progress to continuously improve the pipe performance and improve the material cost performance, so as to ensure that PVC pipe materials occupy an important position in the application market for a long time.

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