The installation of water pipes must be carried out during the renovation. What kind of water pipes will be selected will become a problem. Commonly used water pipes in the market are divided into materials: aluminum-plastic composite pipes, PP-R pipes, PE pipes, PVC-U pipes, and copper pipes. Species, five kinds of materials are different in price and quality are also different.
Brand Shop: Kinder Water Pipes
Aluminum plastic composite pipe aluminum plastic composite pipe loss is small, the coil is easy to transport, can be arbitrary cut, easy to install, easy to construct. However, the accessories are pure copper, and the price is expensive. The inner diameter of the copper part is smaller than the inner diameter of the aluminum-plastic composite pipe, the flow rate of the caliber is small, and the installation is not good, and the water leaks due to thermal expansion and contraction. The pipelines are vulnerable to destruction by other professional construction processes, waste of parts during repairs, and high construction costs. Aluminum plastic pipe is made of high-density polyethylene sandwiched aluminum, the melting point of polyethylene is 140 °C, so its long-term high temperature performance is good, the supporting nut nut and steel sleeve pressure pipe fittings, as long as the correct installation, reliable High degree.
PP-R pipe PP-R pipe is considered as a green, reliable pipe by the building's water supply and drainage community. PP-R pipe fittings are also PP-R material, compared with aluminum plastic composite pipe, the cost is lower, and the pipe fittings are installed on the outside of the pipe, so that the flow is not reduced. However, the PP-R tube should not be suspended for a long distance, and a fixing bracket should be set every 50 cm or it is easy to hang down and bend. In addition to the pure PP-R pipe, there is a PP-R aluminum plastic pipe. The pipe fittings of this pipe are the same as the PP-R pipe, but it is equivalent to the performance of the aluminum plastic pipe, the cost is lower than that of the aluminum plastic composite pipe, and the resistance Aging and strength properties are good, long-distance hanging without sagging, bending.
It is understood that, PP-R pipe due to the molecular characteristics of polypropylene itself, whether imported or domestic, there are disadvantages such as poor high temperature performance and large linear expansion coefficient. Therefore, Document 54 of the Ministry of Construction [2001] expressly stated that the long-term working temperature of PP-R pipes should not exceed 70°C; and the hot-melt jointing technology is more complicated, and defects in the stacking material are easily generated during push-pull, resulting in stress concentration and affecting the pipelines. Long-term performance. Therefore, at the time of purchase, do not easily commission a hydraulic or some non-qualified decoration company. When purchasing, please pay attention to the actual origin, trademark, and after-sales service guarantee of the product.
PE pipe PE pipe structure is single, the overall performance is inferior to aluminum plastic pipe, mainly used for floor heating pipes, floor heating facilities are generally completed by the builders, home improvement generally do not use PE pipe.
PVC-U pipe PVC-U pipe connection method is glue, easy to fall off when hot, open plastic, only applicable to underground pipelines or buried pipelines, if used for large-diameter high-pressure hydraulic pipe, special brackets must be designed, especially At the corners, the impact of the current on the turn is extremely damaging. It is not advisable to use PVC-U pipes in home-installed water pipes, but threading pipes are generally flame-retardant PVC plastic flat pipes (PVC threading pipes).
The copper pipe has superior sanitary performance but the cost is high. The connection method of the copper pipe is welding (the pipe is divided into tin without tin) and the pipe is snapped (the pipe is divided into two types, one is the clamp type, the other is the reverse bite, the apron seal). The pipeline is easily damaged by subsequent construction or secondary decoration.
Say so much, I believe we do not have to give me a clear answer, the market is selling these types of water pipes are also pretty good, it can be said to be evenly divided, after all, from the price to consider, we still difficult to distinguish the pros and cons.
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