The water pipes are the pipes for water supply. The modern decoration pipes are constructed with embedded walls. There are three types of pipe classifications. The first type is metal pipes, such as hot-dip cast iron pipes, copper pipes, stainless steel pipes, etc. The second category is plastic compound metal pipes, such as plastic compound steel pipes and aluminum plastic composite pipes. The third category is plastic pipes, such as PB, PP-R. Correct installation of the water pipe is a very important issue. If the water pipe leaks and bursts, it will bring about irreparable consequences. So how to properly install the water pipe ? Let me explain it to everyone one by one.
Laying pipe considerations
1, calculate the approximate amount
Before estimating the amount of water before installing the water pipe, make a purchase of the material, so as not to buy more or less material, causing waste or lack of materials to affect the installation process.
2, using a new water pipe
If it is a second-hand house or old house reconstruction, the old water pipe is often damaged, do not hesitate to feel decisively renewed, some parts of the water pipe installed is not easy to replace, are replaced with new strategies for safety.
3, water pipes and accessories inspection
Before installation, check the water pipe and its various accessories to see if there are any problems such as damage, leakage, etc. The connection of the water pipes and fittings must be correct and secure. After the test is completed, install the pipes without any problems.
4, the direction of the water pipe
It is recommended that the water pipe be safest. The main reason is that most of the waterway reforms go through dark pipes, while the water is characterized by low water flow. If the pipeline goes underground, it is difficult to find water leakage in time. Only if the water is diffused into the Jinshan or the floor is deformed and leaked downstairs, water leakage will be discovered, and it is difficult to detect leaks due to buried pipes. At this time, the huge losses are even more irreversible. They have even seriously affected friendly neighborhood relations; if the water pipes are at the top, the cost of water reform may be higher, but as a long-term investment, it is worthwhile. When the water pipe is at the top, even if it leaks, it can be discovered in time and is easy to overhaul. The loss is also small.
5, drawing waterway map
After the installation of the water pipe, the waterway diagram of the room should be drawn out to facilitate maintenance and inspection.
Plumbing standard for bathroom
1. The pipeline shall not be installed close to the power supply, and under the electric conduit, excessive bridge bending shall be used during the crossing. The distance between the water pipeline and the gas pipeline shall not be less than 50mm;
2. Except for the design specification, the hot and cold water pipes are all made of aluminum-plastic pipes, and the supervisor is unified as Ф20mm and the branch pipe is Ф16mm; the pipeline shall be checked for smoothness before installation;
3. The steel pipes are all threadedly connected and lined with hemp, thick lacquer or raw material. Pipe acceptance should be consistent with pressure> = 0.6Mpa; voltage regulator "20 minutes of pipe internal pressure drop <= 0.5Mpa as standard; After the water pipes are completed, they shall be temporarily sealed to prevent choking;
4, the pipeline installation should be horizontal and vertical, laying firm, PVC pipe must be glued tightly, the slope meets 35/1000 requirements;
5, sanitary ware installation must be solid, not loose, smooth drainage, connection seals no leakage; after installation is complete, water for 2 hours, self-use visual inspection and feel test again;
6. It is not allowed to change the nature and location of waste and sewage drainage of drainpipes, floor drains and toilet bowls. (Except in special circumstances) The drain pipe must have a water trap to prevent odor emission;
7, the toilet installation must be connected with oil lime or silicon rubber, butter volume seal, is strictly prohibited with cement mortar, water pool, bathtub drain must be connected with a hard pipe;
8, the hot and cold water pipes exposed head spacing must be determined according to the actual size of the faucet. Two heads (surface mounted head must be extended with galvanized pipe 30mm sleeve to ensure that the triangle Valve is installed in parallel) must be on the same level; exposed head protruding plaster should not be less than 10-15mm, and fixed with cement mortar The depth of hot water management into the wall should ensure that there is a protective layer of cement mortar more than 15mm outside the pipe, so as not to be cracked by hot glaze (except in special cases). Long-distance hot water pipes must be treated with insulation materials.
9. The water pipe leading to the balcony must be equipped with a valve, and the joint should be avoided in the middle;
10. When the pre-project is completed, it is necessary to install 1-2 temporary faucets for the construction site (the low faucet is the best period), and provide a list of required materials (specifications, quantities, and types) in the later period so that customers can arrange their own time to purchase.
How to properly install the water pipe
1. It is best to find a professional company to install PP-R pipe, no matter how luxurious and upscale your decoration, if you are not willing to use money in this area, it is not worth it. Frequent crushing or blockage of pipelines will result in tens, hundreds, even incalculable consequences for the prices of the water pipes themselves.
2. Choose a health and environmental protection qualified water supply pipe. At present, most of the residential decoration of the water pipes are mainly divided into: UPVC pipe, PPR pipe, lining PVC galvanized steel pipe, aluminum plastic pipe, copper pipe and stainless steel pipe several categories.
3, must be pressurized after installation test. Pressurization tests are generally performed at 1.5 times the water pressure, and there should be no leakage during the test.
4. Select the laying method of the water supply pipe. The laying of pipelines is divided into surface and concealed installations, but which installation method is more suitable for the laying of indoor water supply pipelines? Surface installation is the laying of pipelines indoors along walls, beams, columns, ceilings and floor panels. The advantage is the cost Low, construction and installation and maintenance are easy to repair. The disadvantages are due to the gray surface area of ​​the pipes, the generation of condensed water, and so on, affecting the environmental sanitation. Concealed installation is where the pipe is concealed in the room on the ground, under the ceiling or in the tube well, pipe trough, and pipe ditch. The advantage of concealed installation is that the sanitary conditions are good and beautiful. The disadvantage is that the project investment costs are high and construction and maintenance are inconvenient. As it is a hidden project, if the selected drinking water pipe or construction problems cause leakage, the consequences are more serious and the new decoration may be destroyed. 5. A simple test method without pressurization is not completely feasible.
1) Close the water main valve. (ie the water switch in front of the water meter)
2) Open the faucet inside the room for 20 minutes, make sure that no water is dripped and then close all taps.
3) Close the water inlet switch of the water storage device such as the toilet tank and the washing machine.
4) Open the main valve of the water pipe.
5) Check whether the water meter is moving 20 minutes after opening the main valve, including slow walking. If there is movement, it is leaking. If you don't move around, it may be okay. (If there is a problem with the water meter or micro-permeation of the water pipe, it may be difficult to determine.) Therefore, it is recommended that a hydrostatic test be conducted after the completion of the construction, and the pressure is generally 0.6 MPa for 20-30 minutes. (It is best to see in person.) 6. The direction of the water pipe: It is recommended that the pipe is safest. The main reason is that most of the waterway reforms go through dark pipes, while the water is characterized by low water flow. If the pipeline goes underground, it is difficult to find water leakage in time. Only if the water is diffused into the Jinshan or the floor is deformed and leaked downstairs, water leakage will be discovered, and it is difficult to detect leaks due to buried pipes. At this time, the huge losses are even more irreversible. They have even seriously affected friendly neighborhood relations; if the water pipes are at the top, the cost of water reform may be higher, but as a long-term investment, it is worthwhile. When the water pipe is at the top, even if it leaks, it can be discovered in time and is easy to overhaul. The loss is also small.
7, in daily life, if you find the following situation, please check the relevant pipeline as soon as possible.
When the water pipe goes underground:
1) Moldy foam on the surface of the wall paint.
2) The baseboard or wooden floor is black and the surface appears fine.
When the hose goes to the top:
1) The canopy appears wet or has water drops.
2) There is dampness or water leakage from the wall of the walkway wall.
8, from the professional perspective of the installation of water pipes, it is recommended that the owner of the house decoration, the best installation of water pipes in place. The wall, the ground is broken, relatively easy to repair, but the water pipe problems, especially the hidden pipe problems, I am afraid that Not only is your own economic loss and troubles, but it is more likely to cause you to claim compensation from you for the loss and trouble of the downstairs tenants. The frequent occurrence of flooding is caused by the leakage of water pipes. Therefore, the water pipe problem must not be saved.
Editor's summary: The above is how to properly install the water pipe installation procedures and precautions related knowledge, water pipe installation is a very important part of the house decoration, water pipe installation requirements for the details are particularly high, the water pipe installation to choose excellent professional hydropower reform Companies, but also have professional quality inspection personnel, do a good job in the plumbing installation inspection, so as to better protect the quality of our plumbing installation project.
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