UPVC Underground Water Supply Plastic Pipe

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UPVC pipe is a kind of plastic pipe with polyvinyl chloride (PVC) resin as raw material without plasticizer. With the development of chemical industry technology, can now produce non-toxic grade pipe, so it has the performance of general polyvinyl chloride, and increased some excellent performance, specifically, it has the advantages of corrosion resistance and good softness, so especially suitable for water supply pipe network. Because it is not conductive, and therefore not easy to acid, alkali, salt electrochemical reaction, acid, alkali, salt are difficult to corrosion it, so there is no need for external anti-corrosion coating and lining.

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And good softness this overcomes the shortcoming of brittle plastic pipe in the past, under the load can produce yield without fracture. An experiment was carried out in which a DN50mm UPVC tube was placed on the ground and the crown 3.0 car was driven over it. The tube was flat but not broken. Then we had a loaded dongfeng truck run over the pipe, and again the pipe just wasn't broken. In addition, UPVC pipe has a small elastic modulus, which can reduce the range of pressure impact and thus reduce the impact of water hammer. U-pvc pipe inner wall smooth, small resistance (UPVC pipe resistance coefficient is 0.009, while the general galvanized pipe.

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The resistance coefficient of cast iron pipe is 0.012-0.013), so the good hydraulic condition is obvious. When the same liquid is transported with the same pipe diameter, the resistance of UPVC pipe is about 30% smaller than that of galvanized pipe and cast iron pipe. When the head loss is the same, the capacity of UPVC pipe is more than 20% higher than that of cast iron pipe. Since the inner wall of UPVC tube is smooth and the liquid will not scale in the internal flow, its conveying capacity will not decrease with the increase of running time. And this also is galvanized pipe and cast iron, insurmountable shortcomings. With the deepening of reform and opening up, people's living standards have been improving, and the quality of tap water is becoming more and more demanding.

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In addition to ensuring that the delivered water meets the standards of drinking water, the water supply industry must also ensure that the water delivered through the pipe network is qualified. Of tap water, "including" "blackwater" reflect the phenomenon such as strong, and the guide system pipe network water quality variation is the main reason of the water supply pipeline corrosion, especially cold galvanized pipe, the pipe inner surface coating is not stable, the tube using gears is not long time begin to rust, caused by the water with iron, smell and color of the buried galvanized pipe corrosion is more serious. 

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UPVC tube is corrosion resistant. No scaling, can inhibit the growth of bacteria, is conducive to protecting water quality from secondary pollution of the pipeline. Therefore, UPVC has a broad application prospect, especially for a large number of buried pipes in front of the water meter.

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