What kind of water pipe is used for decoration?
Part1: The most important thing is to know the material
"Concealed works" is a very important issue, if water pipes leak and burst will have irreparable consequences. In the past, the pipes used for water supply were mainly cast iron pipes. The sand mold cast iron pipe is mainly used outdoors, and the galvanized cast iron pipe is used indoors. However, since it is easy to produce a large amount of rust after a few years of use, it breeds bacteria and seriously endangers the health of the human body. It can be seen that the choice of water pipe material is very important.
Water pipe bridge classification: metal plastic is different
Water pipes are water supply pipes. Modernly renovated water pipes are constructed by buried wall. There are three types of water pipes. The first type is metal pipes, such as hot-dip cast iron pipes, copper pipes and stainless steel pipes. The second category is plastic-plastic pipes, such as plastic-coated steel pipes and aluminum-plastic composite pipes. The third category is plastic pipes such as PB and PP-R.
Advantages and disadvantages of materials: contrast between different materials
Standard water pipes are required: in line with the actual most important
The water pipe is a concealed project in the home decoration, and the water pipe in the kitchen and bathroom is an indispensable part of the home. The domestic water, the bath, the bathroom drainage and the like are inseparable from the water pipe. However, due to its concealment, the choice of water pipes has become extremely important. According to some data, once these concealed projects have been renovated, their investment will be more than 10 times of the initial investment. Then what requirements should be met by standard water pipes?
(1) Economic performance
The water pipe economy cannot be measured by the first investment because it is a "small investment, large loss" product. Long life, maintenance-free, and no loss are the key to the economic performance of water pipes. If the water pipe and pipe fittings are not equivalent to the life of the building, they will bring the consumers more than 10 times the loss of the first investment of the water pipe (mainly the loss of the decoration materials), and may also cause the property loss of the family and increase the maintenance. cost.
(2) Environmental sanitation performance
High-quality water pipe materials should not pollute the water, and can be recycled. There is no need to reuse them. It will not leave a lot of polluted garbage for future generations. There is no good way to deal with them. We must think for future generations.
(3) Corrosion resistance
In addition to the strength of the water pipe material, the high quality water pipe material must have strong corrosion resistance. Mainly include: water flow corrosion resistance, water corrosion resistance, air corrosion resistance, etc. Corrosion is the second factor in water leakage, but it is the first factor that causes water pollution from water pipes.
(4) Thermal expansion performance
We use cold water and hot water; the environment we live in will also change throughout the year. Therefore, high-quality water pipe material should not be a heat-conducting material. It should have a small coefficient of thermal expansion and be highly adaptable to ambient temperature and temperature. Too high a coefficient of thermal expansion is also one of the causes of water leakage.
Part2: Water pipes carefully selected to consider the number of points by number
Water pipe engineering is a very important engineering problem for the family. It involves the water supply and safety of the family. So what do you need to pay attention to when choosing a water pipe? Mainly from the quality of the water pipe, the construction of water pipes and the convenience of water pipe installation and maintenance and after-sales service considerations.
Note 1: The quality of the water pipe determines whether the water quality is good or bad.
"The water quality is good, the key is to look at the pipeline." The traditional galvanized pipe is easy to rust, easy to corrode, easy to scale, easy to breed microorganisms, secondary pollution, and threaten human health. We often have this experience, no one in the house for a few days, open the faucet, out of the yellow rust. This is the best example of pipe pollution water quality. At present, domestic drinking water pipelines mainly include aluminum-plastic pipes and PP-R pipes, which are widely used in drinking water pipes because of their characteristics of corrosion resistance and scaling, but they are easily doped due to plastics.
Note 2: Water pipe construction is a durable guarantee
Product quality does not equal the quality of the project. If the installation is not in place, the insurance factor of the product will be greatly discounted. Generally, the household water pipes are mostly buried, and if you are not careful, you will be stolen and replaced. The consumers may have to pay more attention.
Note 3: Consider the convenience of maintenance and repair
In the case of unreasonable piping design or inconvenient use, it is necessary to repair and renovate. It is very important to choose a water pipe that is convenient and easy to maintain. At present, there are commonly used aluminum-plastic tubes and pure plastic tubes (such as PVC tubes and PPR tubes). The aluminum-plastic tubes can be bent without any bounce by hand, and the buttons are convenient to connect. It is easy to detect the buried position with metal detectors, and the maintenance is simple. Convenient; PPR pipe is easy to embrittlement due to hot-melt connection, and maintenance and repair will affect the safety of the entire pipeline, which requires great care. After the completion of the construction, it is best to take a picture of the pipeline arrangement to facilitate the future maintenance. '
Note 4: Water pipe service
Dare to issue a written product service commitment, from one side to see the quality and credibility of a product. Consumers can't figure out the cheap, buy water pipes without written promises, the general brand pipeline has perfect after-sales service, whether the warranty book has 50 years of quality assurance, and at the same time it is necessary to see whether it is a double warranty. If it is only 50 years warranty, it may be a product warranty.
This makes it easy to get a problem if something goes wrong. The manufacturer is responsible for all compensation for the loss caused by the quality problem. And the construction. It is time to find a manufacturer of double quality assurance. 50 years of product quality + construction quality. Only such a commitment can make consumers buy with confidence, buy comfortably, and use the satisfaction. As long as you take the right purchase channel, you can buy a healthy, durable and reliable water pipe.
Part3: The water pipe is good for identifying and selecting materials is the key
The important step in selecting a water pipe is how to choose the material. The good quality is the key to the durability of the water pipe. If you want to use water safely and at home, you must pay attention to the identification work when purchasing water pipes.
Identification 1: There is a decision to choose a good water pipe
A smell: smelling the water pipe has no smell. Parallel pipes are often mixed with recycled toxic plastics, which often smell pungent.
Second look: first look at the color, thickness, gloss of the water pipe, whether the outer wall of the pipe indicates the trademark, specification, temperature, pressure, production batch number, date of production and actual place of origin, aluminum plastic pipe depends on the thickness and uniformity of the aluminum layer; See if there is a health permit. Water pipes without a sanitation permit cannot be used for drinking water pipes.
Three notes: First of all, you should pay attention to the formal agent store that has the pipe authorized distribution book; then pay attention to whether the purchased pipe and fittings are produced by the same manufacturer; finally, pay attention to the product service card.
Water pipe size
Divide 1 inch into 8 equal parts: 1/81/43/81/25/83/47/8 inches. It is equivalent to the usual one to seven points.
Smaller sizes are expressed in 1/16, 1/32, 1/64, and the unit is still inches. If the denominator and the molecule can be divided (eg, the molecules are 2, 4, 8, 16, 32), they should be approximated.
The inch is indicated by two inches in the upper right corner, such as 1/2"
For example, the water pipe of DN25 (25mm, the same below) is the British 1" water pipe, and it is also the 8-point water pipe before liberation.
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