Home decoration people often neglect the choice of water pipes and pipe diameters. After the check-in, they found that there are many problems, such as water leakage damage to the decoration, insufficient water pressure, and the water heater cannot start.
The water pipes must meet the health needs, and the sanitary indicators of the water pipes must meet the national standards before they can be used. However, the cleanliness of the water does not depend entirely on the water quality of the pipeline. It depends on whether the pipeline used can withstand the penetration of oxygen from the outside air into the pipe wall. Long-term oxygen permeation easily causes bacteria, scale, and long moss to grow in the pipeline, thus polluting the water. Therefore, when consumers buy household plastic pipes, it is best to ask the merchants for product quality inspection reports, and do not buy cheap pipes with no factory name or site.
The aluminum-plastic composite pipe has low loss, the coil is easy to transport, can be arbitrarily cut, easy to install, and convenient to construct. But the accessories are pure copper and expensive. The aluminum-plastic pipe is made of high-density polyethylene sandwiched with aluminum. The melting point of polyethylene is 140 °C, so its long-term high temperature resistance is good. The ferrule nut type and steel sleeve clamp type pipe fittings used together are highly reliable.
The pp-r pipe is regarded as a green and reliable pipe by the building water supply and drainage industry. Compared with the aluminum-plastic composite pipe, the cost is lower, and the pipe fittings are installed outside the pipe so that the flow rate is not reduced. However, the pp-r tube should not be suspended for a long distance. A fixed bracket should be provided every 50cm or so, otherwise it will be easy to sag and bend.
Pe pipe structure is single, the comprehensive performance is not as good as aluminum-plastic pipe, mainly used for floor heating pipes, floor heating facilities are generally done by builders, and home decoration is generally not used.
The connection method of the pvc-u tube is glued, and it is easy to fall off when it is hot. It is only suitable for underground pipelines or buried pipelines. If it is used for large-diameter high-pressure pipe, special brackets must be designed, especially at the corners. The impact of water flow on the turning is extremely great. The pvc-u tube is not recommended for water pipes at home.
The copper tube has superior sanitary performance but high cost. The connection method of the copper pipe is welding and pipe fitting. The pipeline is easily damaged by subsequent construction or secondary decoration.
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