Comparison of advantages and disadvantages of five

2022-07-22
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When decorating, we must install water pipes. What kind of water pipes to choose has become a problem. Common water pipes in the market are divided into five kinds according to materials: aluminum plastic composite pipe, PP-R pipe, PE pipe, PVC-U pipe and copper pipe. The prices of the five materials are different and the quality is also different

when decorating, we must install water pipes. What kind of water pipes to choose becomes a problem. The common water pipes in the market are divided into five kinds according to materials: aluminum plastic composite pipe, PP-R pipe, PE pipe, PVC-U pipe and copper pipe. The prices of the five materials are different and the quality is also different

brand stores: Jinde water pipe, Tianli water pipe

aluminum plastic composite pipe, aluminum plastic composite pipe loss is small, coil is easy to transport, arbitrary cutting, easy installation, convenient construction. However, the accessories are pure copper, which is expensive. The inner diameter of the copper parts is smaller than that of the aluminum-plastic composite pipe. The caliber flow is small, and the installation is not good. It is easy to leak water in case of thermal expansion and cold contraction. The pipeline is easily damaged by other professional construction processes, so accessories are wasted when repairing, and the cost is high. Aluminum plastic pipe is made of high-density polyethylene with aluminum. The melting point of polyethylene is 140 ℃, so its long-term high-temperature resistance is good. As long as it is installed correctly, the ferrule nut type and steel sleeve clamp type pipe fittings used together are highly reliable

PP-R pipe PP-R pipe is regarded as a green and reliable pipe by the building water supply and drainage industry. The fittings of PP-R pipe are also made of PP-R material. Compared with aluminum-plastic composite pipe, the cost is lower, and the fittings are installed outside the pipe, so that the flow does not decrease. However, PP-R pipe should not be suspended for a long distance, and a fixed support should be set every 50cm or so, otherwise it is easy to sag and bend. In addition to pure PP-R pipe, there is now another kind of PP-R aluminum-plastic pipe. The pipe fittings of this kind of pipe are the same as those of PP-R pipe, but they are equivalent to the performance of aluminum-plastic pipe. The cost is lower than that of aluminum-plastic composite pipe, and they have good aging resistance and strength performance. They are suspended for a long distance without sagging and bending

it is understood that due to the molecular characteristics of polypropylene itself, PP-R pipes, whether imported or domestic, have shortcomings such as poor high temperature resistance and large coefficient of linear expansion. Therefore, the Ministry of construction [2001] No. 54 document expressly stipulates that the long-term working temperature of PP-R pipe cannot exceed 70 ℃; However, the hot-melt connection process is complex, and it is easy to produce stacking defect areas during push connection, resulting in stress concentration and affecting the long-term performance of the pipeline. Therefore, when purchasing, do not easily entrust hydraulic engineering or some unqualified decoration companies. Pay attention to the actual origin, trademark and after-sales service guarantee of the products when purchasing

PE pipe PE pipe has a single structure, and its comprehensive performance is not as good as aluminum-plastic pipe. It is mainly used for floor heating pipes. Floor heating facilities are generally done by builders, and PE pipes are generally not used in home decoration

pvc-u pipe the connection method of PVC-U pipe is adhesive, which is easy to fall off and open when it meets heat. It is only suitable for underground pipelines or buried pipelines. If it is used for large-diameter high-pressure exposed pipes, special supports must be designed, especially at the corners. The water flow impact has great damage to the corners. PVC-U pipes are not recommended for water pipes in home decoration, but the threading pipes are generally flame-retardant PVC plastic flat conduits (PVC threading pipes)

copper tube copper tube has superior sanitary performance, but the cost is very high. The connection methods of copper pipes include welding (pipe fittings with tin or without Tin) and pipe fittings clamping (pipe fittings are divided into two types, one is clamp type, the other is inverted tooth occlusion and rubber ring sealing). The pipeline is easy to be damaged by subsequent construction or secondary decoration

having said so much, I believe you don't need me to give a clear answer. These kinds of water pipes sell well in the market, which can be said to be equal. After all, considering the cost performance, it's still difficult for us to distinguish the advantages and disadvantages

link: there are tricks to distinguish the fabric of fabric sofa, and the choice should be careful

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