The hidden project in home decoration is a very important piece, and the waterway reconstruction in the hidden project is also a very important part. If there is a problem with the waterway, then he will cause damage and hidden dangers to the home, walls, and even the electrical circuit in the home. He will also be upstairs and downstairs. The consequences will be unimaginable. Then, when communicating with a decoration company, how do you check the waterway modification materials provided by the decoration company? What are the characteristics of each material?
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1. What is the biggest difference between water supply pipe construction and drainage pipe construction?
The water supply pipe is a pressure pipe, there is no limit to the direction of the pipe, and it can be installed in all directions to meet the requirements of use. After the completion of the construction, a pressure test should be conducted. Drainage pipes are generally rainwater pipes and sewer pipes and are non-pressure pipes. It depends on the inclination of the pipe to flow naturally. Therefore, when designing and constructing the drainage pipe, it is necessary to pay attention to the elevation of the bottom of the pipe, and to avoid passing the ball after completion of the “poured water†construction. In most cases, the same section drain is below the water supply pipe.
2. What is the difference between the water supply pipe and the drain pipe?
The water supply pipe is a pressure pipe, and the drain pipe is a non-pressure pipe. I believe you have already learned in the construction equipment course. Pressure pipelines have high requirements on the mechanical properties and installation process of materials, and non-pressure pipes are relatively bottom.
3. What pipe is used for the buried water supply pipe?
Of course, PP-R tube. PPR pipe has been used as a water supply pipe for decades in foreign countries. China started to import finished products around 1999, and now it is mostly self-produced. PP-R pipe has three major developments in the development process.
For the first time: PP-H. The characteristic is high temperature, suitable for 80-90 degrees Celsius. However, under 10 degrees Celsius, it is easily brittle due to external impact. Therefore, it cannot be used as a cold water pipe.
The second time: PP-B [PP-C], contrary to PP-H, has high toughness and strong elasticity. Even 0 degrees Celsius is not easy to crack. However, it is explosive when it is above 60 degrees Celsius, so it cannot be used as a hot water pipe.
The third time: PP-R integrated on the two kinds of pipe excellent, hot water pipe suitable for 80-90 degrees Celsius, cold water pipe 0 degrees Celsius is not easy to break, strong impact resistance, high toughness. At present, most people use this pipe as a water supply pipe.
4. Is it important to choose a good pipe for decoration?
In the decoration of the house, it is not as insignificant as the hydropower project, but it is so important. It is inconspicuous because it hides in the wall and cannot be seen or touched. Many people may consider designing, decorating, and other external things. Instead, they rarely pay attention to this internal detail. It is important to say that it is Because once a problem arises, such as water leaks and bursts, you often find yourself in a state of unfitness and suffering. Therefore, it is futile for the “hidden project†to fail to be completed and the surface to be beautifully decorated.
5, PPR tube characteristics and application:
PPR tube has the following characteristics:
1, health, non-toxic: This product is a green building materials, can be used for pure water, drinking water pipeline system.
2. Corrosion-resistance and non-fouling: It can avoid the worries of rust on the basin and bathtub due to the corrosion of the pipeline. It can avoid the blockage caused by the corrosion and scale of the pipeline.
3, high temperature, high pressure: pipeline delivery water temperature up to 95 °C.
4. Heat preservation and energy conservation: The thermal conductivity is only one-hundredth of that of the metal pipe, which is excellent for the heat preservation and energy-saving effect of hot water pipes.
5, light weight: the proportion is only one-seventh of the metal tube.
6, beautiful appearance: the product is smooth inside and outside walls, fluid resistance is small, soft color, beautiful appearance.
7, easy installation and reliable: using hot melt connection, a few seconds to complete, safe and reliable.
8, long service life: under the provisions of the long-term continuous working pressure, life under use up to 50 years
PPR tube application range:
1, residential hot and cold water pipe system;
2. Industrial water and chemical transport and discharge;
3, pure water, drinking water pipelines;
4, beverage, drug production delivery system;
5. Compressed air pipe;
6, other industrial, agricultural use.
6, home improvement water pipe reform how to choose
I hereby share my thoughts with you and hope to be helpful to everyone's decoration.
The pipes in the family are divided into cold water pipes, hot water pipes, heating pipes, gas pipes, and sewage pipes. From the material point of view, they are divided into: galvanized pipes, UPVC pipes, aluminum plastic pipes, PPR pipes, copper pipes, and not embroidered pipes. Several types of steel pipe.
Galvanized pipe: Most of the old houses use galvanized pipes. Now the kind of iron pipe used for gas and heating is also a galvanized pipe. The galvanized pipe is used as a pipe. After a few years of use, a lot of rust is generated inside the pipe. Huangshui not only pollutes sanitary ware, but also contains bacteria that grow on surfaces that are not smooth. Corrosion causes excessive levels of heavy metals in the water and seriously harms human health. In the 1960s and 1970s, developed countries in the world began to develop new types of pipes and banned galvanized pipes one after another. China's Ministry of Construction and other four ministries also issued a document stating that galvanized pipes have been banned since 2000. At present, galvanized pipes have rarely been used for cold water pipes in new communities, and hot water pipes in some communities use galvanized pipes. This kind of pipe can be used for general gas pipes, heating pipes and sewage pipes. Do not use cold water pipes and hot water pipes.
UPVC pipe: Actually it is a kind of plastic pipe, and the interface is generally glued. UPVC pipe is not good in antifreeze and heat resistance, so it is difficult to use as a hot water pipe, because its strength can not be applied to the bearing of the pipe. Pressure requirements, so cold water pipes are rarely used. In most cases, PVC pipes are suitable for wire and sewage pipes. In addition, in recent years, the scientific and technological community has discovered that chemical additives that can make PVC softer have a great impact on the kidneys, liver, and testicles in the human body. This can lead to cancer and kidney damage, as well as damage to the human body's functional reengineering system and affect development. Therefore, it is recommended that you do not buy it. Only water pipes can use this type of water pipe, other types of pipes do not use this type of pipe.
Aluminium plastic pipe: Aluminum plastic composite pipe is one of the more popular pipes in the market. The current market is famous for Nifeng and Kinder. Due to its light weight, durability and convenient construction, its bendability is more suitable for use in home wear. . The main disadvantage is that when used as a hot water pipe, the long-term thermal expansion and contraction will cause the wall to be misaligned and cause leakage. The leakage is still visible after a few years of renovation, so the more people use it now. The less you have come. Cold-water pipes, hot-water pipes, and heating pipes can all be used in this type of pipe. Most aluminum-plastic pipes are now used to change the heating. The construction is convenient and the performance can also be achieved.
PPR pipe: As a new type of pipe material, PPR pipe has unique advantages. It can be used as cold water pipe or hot water pipe. Because it is non-toxic, light weight, pressure resistance, corrosion resistance, it is becoming A popular material, PPR pipe is not only suitable for cold water pipes, but also for hot water pipes and even pure drinking water pipes. PPR pipe interface using hot-melt technology, the tubes are completely integrated together, so once the installation of pressure test passed, will not exist as long as the aluminum-plastic pipe aging leakage phenomenon, PPR pipe, said never scaling, will never be born Rust, never leaking, green advanced water supply material. At present, there are many PPR pipes in the country, which are mixed. It is better that the domestic Rinpo, Tianli, and Kinder are also good.
7. Why should the pressure test be performed after the water pipe is installed?
It is to see if the joints are in good condition and there is no discovery that the pipes have been broken during the prevention of construction. The purpose of pressure measurement is not to see if the water pipe can withstand much pressure. It is an indicator when the material is shipped. Therefore, when buying a water pipe, it depends on the quality of the water pipe.
8. Several suggestions for home improvement and hydropower reform
(1) Before the hydropower reform, we should determine the type of furniture in the home and the location of the furniture, such as where the closet is placed and how the nightstand should be placed so that when the electricity is changed, you can determine which potentials need to be changed and those that can be retained. Can not use it. The same is true for home appliances, considering their needs as much as possible.
(2) Prior to the hydropower reform, the designer of the electric water heater in the bathroom should be consulted, the location of the water heater should be determined, and the outlet for the hot and cold water and the electric potential must be kept. Similarly, for the kitchen treasure, whether or not to hang it before buying should be confirmed. We must invite its designers to stay at the door to keep a good outlet for hot and cold water and potential, and then communicate with the cabinet designers to determine the location of water and electricity. In short, when it comes to decoration, we must ask for more questions. If we don’t know, we’ll ask, if we’re not sure, If you ask too much, you naturally understand that mistakes are avoided.
(3) Owners should still have some basic principles for hydropower reform. For example, cold and hot water pipes should not be placed in a tank. The following are some basic principles. The detailed contents can be found on the Internet. I will summarize them briefly. The basic principle of waterway reform: the same level of hot and cold water and the distance of 10cm, hot and cold water left hot right cold, horizontal and vertical pipe, pressure test 0.8Mpa 30 minutes without dropping.
(4) The construction team is required to make hydropower reforms. It is recommended that the owners should go to the building materials supermarket to purchase branded pipe fittings.
(5) Change the water as little as possible, but do not change if you do not change it! Because it is easier to block after the change, it is not easy to clear
(6) Finally, if you don’t know anything about hydropower reform, you are advised to find a few professional companies or construction teams to measure and communicate with each other and make a budget before choosing. After several exchanges, you can obtain suggestions for all aspects. At the same time, there will be a general understanding of hydropower reform.
9. In order to prevent the pollution of drinking water in decoration, the following points must be achieved:
(I) Pay attention to the choice of materials used in pipeline reconstruction
The drinking water pipes installed and replaced in the decoration must meet the health needs. The hygienic indicators of the water pipes must meet the national standards before they can be used. In particular, the PVC pipes that are prohibited from use by the state and the waterproof materials that pollute the environment cannot be used. On the one hand, it is necessary to ensure that the pipeline material does not pollute the water quality. In addition, the choice of the water pipe also depends on whether the pipeline used can withstand the pollution infiltration in the external environment, thus contaminating the quality of drinking water.
(B) Pay attention to the inspection and inspection of drinking water after renovation
1. There is odor in the drinking water of the newly-decorated rooms, especially the smell is heavy every morning;
2. There is foreign matter in drinking water in newly renovated houses, especially when water is not used for a long time;
3. There is color and turbidity in the drinking water of newly-decorated rooms;
4. After staying in a new house, the family members have common unexplained diseases and discomfort.
10. What kind of pipe quality is the best for the water supply project?
Experts said that at present, copper pipes are the most used in the world. Copper pipes have obvious advantages in terms of high and low temperature resistance, strength, environmental protection and hygiene. Copper pipes occupy a monopoly in water supply systems in developed countries or regions. For example, in Hong Kong, copper pipes account for about 70% of the market, and domestic water systems in residential buildings are required to use copper pipes. Older developed countries such as the United Kingdom have higher copper penetration. However, in China, the use of copper pipes has been low. In the Beijing market, there is an optimistic estimate of about 10% utilization rate, mainly concentrated in high-end users such as five-star hotels and high-end residential communities. However, the cost of copper pipes is high.
The galvanized pipe has been gradually phased out due to its tendency to rust, fouling, non-insulation, and frost cracking.
The PPR pipe is currently used most often. These tubes have good plasticity and toughness, and the insulation does not crack or foul. The use of special copper joints or thermoplastic joints guarantees quality assurance and low energy consumption. However, at present, there are many counterfeit and inferior products in the PPR pipeline. The market is not standardized and must not be greedy and cheap.
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