How to buy water pipes, how to buy decoration water pipes

When buying water pipes, you should pay attention to the most direct ways to start with the most direct ways to identify the quality of water pipes, mainly from the following aspects, you can learn from them. The first is "touch": whether the texture is delicate and whether the particles are uniform.

Now there are several colors of PPR pipes on the market, white, gray and green, under normal circumstances, plastic can not be made white, so many people often think that white is the best, in fact, this view is more one-sided. With the update and improvement of technology, color is not the standard to distinguish the good and bad of PPR tubes. The quality of the tube can't solve the problem, touch it, the rough particles are likely to be mixed with other impurities.

Smell": whether there is a smell or not. The main material of PPR pipe is polypropylene, the good pipe has no smell, and the bad pipe has a strange smell, which is likely to be mixed with polyethylene, not polypropylene.

The "pinching" :p PR tube has considerable hardness, and it can be kneaded into a deformed tube casually, and it is definitely not a PPR tube. "Smash":

A good PPR tube has good "resilience", and it is naturally not a good PPR tube if it is too easy to smash. However, strong hardness does not mean good elasticity, and everyone has to have doubts about the PPR pipe that cannot be broken. Because some unscrupulous manufacturers increase the hardness of pipes by adding too much calcium carbonate and other impurities, such pipes are prone to brittleness after a long time.

"Burn": Ignition is very intuitive and effective. PPR tubes mixed with ** plastic and other impurities in the raw materials will emit black smoke and have a pungent odor; After burning, the good material not only does not emit black smoke and no smell, but after burning, the molten liquid is still very clean.

It is also very reassuring for later use, and it is important to compare the water you drink.

1. PPR water pipes, steel-plastic water pipes, and copper pipes are generally used for home decoration water pipes, and the steel-plastic pipes are relatively high, while the fittings of PPR water pipes are higher than those of steel-plastic pipe fittings, and copper pipes are the most expensive, which is equivalent to about 4 times that of PPR pipes.

2. Home decoration and laying water pipes should be avoided from the ground as much as possible, and it is best to walk the line from the top or wall, the amount of pipe may increase slightly, but it is conducive to future pipeline maintenance.

3. The thickness of the wall of the cold and hot water pipe is not the same, and the cold water pipe cannot be used as a hot water pipe, and the easy way to distinguish the cold and hot water pipe is to mark a red line on the hot water pipe.

4. The standard length of PPR pipes is four meters each, and when you buy it, you should ask clearly whether the merchant is talking about the ** or per meter of pipes, and remember to check whether the length of the pipe meets the requirements after the pipe is delivered.

5. Pay attention to the diameter and wall thickness of the water pipe for home decoration, the general general pipe should be in charge with 6 pipes, and the pipes can be selected with 4 pipes, in order to ensure water consumption, the pipes can also use 6 pipes.

6. When purchasing pipes for home decoration, it is necessary to pay attention to whether the inner diameter of the pipe is symmetrical, and the uneven thickness of the pipe diameter will affect the docking of the two interfaces.

7. The "Quality Code for Home Decoration and Decoration Engineering" of the Building Decoration Industry Association has such provisions on the time and pressure of the pressure test: the newly installed water supply pipeline must be pressurized in accordance with the relevant regulations. The test pressure of metal and its composite pipe should be stabilized for 10 minutes, and the pressure drop in the pipe should not be greater than that, and there should be no leakage; Test the pressure of the plastic pipe, stabilize the pressure for 20 minutes, and the pressure drop in the pipe should not be greater than that, and there should be no leakage.

Decoration of water pipes is a hidden project, so if the water pipe leaks or bursts, it will bring the consequences of unrepentance and filial piety, so when choosing a water pipe, it is necessary to choose a water pipe with excellent quality, so as to provide sufficient guarantee for people's household water safety. The following is an introduction to what kind of water pipe*** and how to buy water pipes.

What kind of water pipe***.

1. Galvanized iron pipe.

Galvanized iron pipe is a material that is currently used more in Lilu, due to the corrosion of galvanized iron pipe will cause high heavy metal content, affecting human health, in many countries and regions have begun to prohibit the use of galvanized iron pipe.

2. Copper pipe. Copper pipe is more durable, and the construction is convenient, in many imported bathroom products, copper pipe is the first choice, and ** is the main reason for the use of electricity. Copper erosion is also a factor.

3. Stainless steel pipe.

Stainless steel pipe is high, and the construction process requirements are high, especially the material strength is hard, and on-site processing is difficult. Therefore, the probability of being selected in the renovation project is low.

4. Aluminum-plastic composite pipe.

Aluminum-plastic composite pipe is a more commonly used pipe, this pipe material is light, durable, easy to build, and its bending is more suitable for use in home decoration; However, the disadvantage is that when used as a hot water pipe, due to long-term thermal expansion and contraction, the pipe wall will be misaligned and cause leakage.

5. PVC pipe.

PVC pipes are modern synthetic pipes, which are non-flammable, high-strength, resistant to climatic changes and excellent geometric stability.

How to choose a water pipe.

1. Environmental performance.

Good water pipes will not pollute the water, can be recycled, there is no concern about reuse, and it will not leave a lot of pollution for future generations.

2. Corrosion resistance.

High-quality water pipes have strong corrosion resistance, so try to choose water pipes with good corrosion resistance when purchasing water pipes.

3. Thermal expansion performance.

Hot water and cold water will be used in life, so when buying water pipes, it is better to choose water pipes with a small thermal expansion coefficient and strong adaptability to the ambient temperature and use temperature.