In the renovation of many homeowners will encounter a variety of pits, including water pipe leakage is one of the most serious. Household water pipes can be divided into two kinds of water pipes and water pipes, compared to the water pipes, water pipes can say not much, only need to be strong and durable, pay attention to good drainage slope and water pipe protection in the construction process. But the water pipe is different, not only need the corresponding construction technology, at the same time on the material has different needs. So in the plumbing remodeling, how to choose the material for the water pipe?
In modern home decoration, most of the water supply pipe is PPR pipe, in the 80’s, the water supply pipe material is galvanized pipe, galvanized pipe is now in our kitchen, gas, natural gas and other iron gas pipe. Galvanized pipe can only go to the open line, and the galvanized pipe itself is very easy to rust, breeding bacteria and other defects, so the state banned its use as water supply pipe.
Usually in the use of galvanized water supply pipe for the transformation of the old house, we generally do not directly replace the water meter in front of the pipe, if it is really pipe aging, rust and corrosion of the situation is serious, the need for owners to contact the property owners or the water company, close their own valve for the replacement of water pipe work. In the replacement of water pipes before, also need to coordinate with other households in advance, to avoid the replacement of water pipes due to their own homes, affecting the water use of the entire building.
In fact, in the beginning, used to replace the galvanized pipe is aluminum-plastic composite pipe. This kind of water pipe when the multi-layer pipe, the pipe’s inner and outer military division plastic products, while the middle is aluminum cast layer. Aluminum-plastic pipe is a kind of metal and plastic fusion in a new type of pipe (for that era), it itself has a very high toughness, in the resistance to high temperature, high pressure also has a very strong performance. The cast aluminum layer in the middle not only insulates the air, but also effectively inhibits the growth of bacteria.
However, the interface of the aluminum-plastic tube, you need to use the ferrule for splicing, this ferrule has a certain service life, after a long time to use the ferrule joints are very easy to aging, and even leakage phenomenon. In order to solve this situation, PPR pipe also came into being!
The main material of PPR pipe is random copolymer polypropylene, which is a non-toxic, odorless and will not pollute the water supply of environmentally friendly materials. Usually only due to the water flow for a long period of time in the case of static, bacteria will grow. Although the high temperature resistance range of PPR pipe is slightly lower than aluminum-plastic pipe, but -15 ° to 95 ° category, but also fully able to meet the needs of our family water.
PPR pipe pressure resistance is very strong, its working pressure can reach 2.0Mpa to 2.5Mpa, most of the PPR manufacturers on the market have promised that the service life of this pipe can reach 50 years! And aluminum-plastic pipe splicing process is different, PPR uses a hot melt process, as long as the overall quality of the water pipe is qualified, you can guarantee that there will be no leakage.
Of course, in addition to PPR pipe, there are copper pipe and stainless steel pipe which are suitable for use as water pipes. Copper pipe itself corrosion resistance, long service life, the new energy is more stable and known, while the copper pipe itself not only does not breed bacteria, but also can play the effect of sterilization. Copper pipe itself is connected in two ways, respectively, ferrule and welding, ferrule and aluminum-plastic pipe as easy to appear aging, water leakage phenomenon, while the welding is different, welding treatment of copper pipe, there will be no leakage phenomenon. But copper pipe has a fatal disadvantage! Its own insulation is extremely poor, if you use copper pipe for hot water pipe, you must do a good job of insulation measures.
Stainless steel pipe is currently the best metal water pipe, corrosion resistance, impact resistance are very strong, the water pipe system pressure can reach more than 2.5Mpa, can withstand the temperature range in -40 ° ~ 120 °, environmental health. Installation is the same as copper pipe, it is best to use welding. Some families only do washbasin do not do bathroom cabinets, the sewer or floor drainage way, like to use stainless steel water pipe to do the upper and lower water, exposed to look better.
Overall copper and stainless steel pipe in the home use rate is not high, the most important reason is expensive, expensive materials (retail price is several times the PPR pipe), installation is also expensive.