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PVC power pipe is better than PE It has the characteristics of high strength, good flexibility, high temperature resistance, corrosion resistance, flame retardant, good insulation performance, no pollution, not easy to age, light weight, convenient construction, etc., and its performance indicators have been tested, identified and certified by the national and provincial levels, and have reached or exceeded the level of similar products in China.
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The PE pipe connection method adopts welding, the interface quality is excellent, the flexibility is good, and the application advantages are obvious in trenchless technologies such as road crossing or river crossing, and the development trend of water supply pipelines in the future. However, the construction speed is slow and the construction conditions are stricter. **High.
PVC pipes with large diameters are generally connected flexibly, which is quick and simple to install. **Low.
In terms of convenient construction and economic cost, PE pipes are better than PVC pipes.
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Both of them have their own benefits, both have their own characteristics, as long as you see which aspect you use, some places use PE is good, and some places use PVC pipes.
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Power pipes are still PE's best, strong and durable***.
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Power pipe PE or PVC pipe is better, of course, PE pipe is better.
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Generally speaking, I feel that there is not much difference between the two, both can be, and there are more people who buy PE pipes.
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Then I think it's still a pvc pipe, okay, the pv thin pipe is *** or it's better, right?
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Under what circumstances can be used to consider PVC for indoor aesthetics
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The PE pipe is connected with hot melt, and the connection is more firm; The small diameter of PVC pipe is connected with a thread, and the large diameter is connected with a rubber ring, and the connection safety performance is slightly worse, but the construction cost is lower.
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Dear, hello, I am glad to answer for you, PVC pipe material is good PE pipe and PVC pipe ratio, PE pipe ***. PE refers to polyethylene plastic, PE pipe has strong corrosion resistance, good toughness and flexibility, and can reduce the use of pipe elbows in the construction process (the pipe can be bent directly), the biggest advantage is that the construction is easy and the hole is convenient. Secondly, the PE pipe has good environmental affinity (environmental protection and non-toxic), and the outer wall is a hollow layer, which is less noisy than PVC pipe.
However, the disadvantages of PE pipes are also obvious, they are expensive, and the wind resistance is greater than that of PVC. I think it's still PVC pipe, because the quality of PVC pipe is very good, the material used is good, his usefulness is great, and he can play his role in **, and he is also strong and soft, the utilization rate is very high, the PE pipe is worse than the PVC pipe, his quality is not as good as the PVC pipe, the softness is almost there, so it is still PVC pipe than PE pipe. 1. The difference between PE pipe and PVC pipe in transportation safety PE material and PVC material are non-toxic and tasteless, and the pipeline is strictly tested after production and processing to ensure its transportation safety.
In terms of material, both are excellent choices for water pipelines. 2. The elastic modulus of PE pipe is usually lower than that of PVC pipe, and the toughness will be better, but the toughness is more than enough and the stiffness is missing, and the straightness is not good and easy to deform in the field of building water supply, resulting in unsightly pipelines. Therefore, PVC pipes are commonly used to ensure the straightness and beauty of the pipes.
The toughness of PVC pipe is relatively poor and has strong rigidity. In installation, transportation and use, it is easy to brittle and has a low expansion coefficient. Therefore, PE pipes are often used in gas transportation.
3. The difference in thermal conductivity is that the density of PE pipe is higher than that of PVC, and the thermal conductivity is about twice that of PVC. Therefore, it is more suitable to lay underfloor heating pipes in the decoration. PVC has less thermal conductivity and is better able to maintain temperature during hot water transportation in solar water heaters.
Conclusion: PE pipes and PVC pipes are both suitable for water supply pipes, but due to the different materials and properties of the pipes, the use fields of the two are different. The same specification of PE pipe is about 30% more expensive than PVC, but some areas of PE pipe are not available for PVC, and similarly, PVC also has its unique use areas.
Therefore, the choice of the two pipelines first depends on the field of use and the attribute requirements for the pipeline. Make the best use of the right pipes in the right field!
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PVC pipe and PE pipe are common pipe materials, and they differ in many aspects, including material characteristics, scope of application, and use environment. Here are some of their key differences:
1.Material Convergence Characteristics: PVC pipes are made of polyvinyl chloride (PVC) material, while PE pipes are made of polyethylene (bent PE) materials. The chemical and physical properties of these two materials are different, resulting in differences in their pipe properties and properties.
2.Strength and hardness: PVC pipes are relatively hard and have high compressive and flexural strength, while PE pipes are relatively soft and have high toughness and impact resistance.
This makes PVC pipes suitable for applications that require high stiffness and pressure carrying capacity, while PE pipes are suitable for underground and above-ground piping systems, able to adapt to deformation and vibration of the ground.
3.Corrosion resistance: PVC pipes have good corrosion resistance to general chemicals and acidic and alkaline media, but some chemicals and solvents may cause corrosion to them.
PE pipe has good chemical stability and corrosion resistance, and has good corrosion resistance in many acidic and alkaline media and chemical environments.
4.Operating temperature range: The maximum use temperature of PVC pipes is usually between 60-70 degrees Celsius, while the maximum use temperature of PE pipes can reach 80-90 degrees Celsius. Therefore, in high temperature environment, PE pipe has better heat resistance than PVC pipe.
5.Installation and connection: PVC pipes and PE pipes are also different in installation and connection. PVC pipes are usually joined using adhesives, hot melt connections, or mechanical connections. The PE pipe is generally connected by hot melt connection or mechanical connection.
It should be noted that the specific performance and scope of application of PVC pipe and PE pipe may vary due to different specifications and manufacturers. When selecting piping materials, comprehensive consideration should be made based on specific application needs, engineering environment and relevant standards. If you need more accurate information and advice, it is recommended to consult a professional plumbing material supplier or engineer.
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There are obvious differences between PVC pipes and PE pipes in terms of raw materials, performance, application fields, connection methods, ** and hygienic properties.
Raw material: PE pipe is made of polyethylene resin, which contains only two atoms, carbon and hydrogen. The PVC pipe is made of polyvinyl chloride resin and contains chlorine atoms in addition to carbon and hydrogen.
Performance: PE pipe has good flexibility and impact resistance, which is superior to PVC pipe. PVC pipes show the characteristics of strong rigidity and easy brittleness, and their expansion coefficient is low.
Applications: PE pipes can not only be used as water supply pipes, but also can transport gas. PVC pipes are mainly used in drainage pipes, because of their flame retardant insulation properties, they can also be used in the flame retardant threading industry.
Connection: PE pipes are mainly connected by hot melt or electric melting, and the connection will be integrated, and the interface strength is high. PVC pipes are generally connected by glue or sealing rings, and the strength and tightness of the joints are relatively low.
**: Under the condition of ensuring the same pressure demand, the wall thickness of the PE pipe needs to be made thicker, so it is relatively higher. Whereas, PVC pipes are comparatively thin and relatively cheap.
Hygienic performance: PE pipes have fewer raw material additives, so they are more in line with the requirements of drinking water pipes. PVC pipes may contain heavy metals such as lead and have relatively poor hygienic performance.
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The composition is different: PVC materials are mostly PVC, which belongs to ordinary plastics; The composition of PC is mainly carbonate, which belongs to engineering plastics;
Different properties: PC material has the advantages of high strength, good transparency, good impact resistance, etc., relatively speaking, PVC material is softer, transparent and resistant, and the mechanical properties are not as good as PC material;
Different: PVC material is cheaper, and it's usually only half to a quarter of the PC material;
Different uses: with high transparency, light weight, impact resistance, sound insulation, heat insulation, flame retardant, anti-aging and other characteristics, is a high-tech, comprehensive performance of extremely excellent, energy-saving and environmentally friendly plastic plate, is currently the international commonly used plastic building materials, has other building decoration materials (such as glass, plexiglass, etc.) can not be compared.
Different characteristics: the light transmittance of the PC board can reach up to 89%, which can be compared with glass. The UV coated board will not produce yellowing, atomization, and poor light transmission in the sun, and the light transmission loss is only 6% after ten years, and the PVC loss rate is as high as 15%-20%, and the glass fiber is 12%-20%.
The PC board is coated with an anti-ultraviolet (UV) coating on one side and an anti-condensation treatment on the other side, combining anti-UV and thermal insulation and anti-dripping functions.
Different mechanical properties: PVC has higher hardness and mechanical properties of closed code. It increases with the increase of molecular weight, but decreases with the increase of temperature.
Hard PVC has good mechanical properties, and its elastic modulus can reach 1500-3000MPa. And the elastic MPA of soft PVC. However, the elongation at break is as high as 200%-450%.
The friction of PVC is general, the static friction factor is, and the dynamic friction factor is.
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1. Different materials: the main difference between PE water pipe and PPR water pipe is the material, the material of PE pipe is polyethylene, the material is medium density polyethylene, the elastic modulus is only about 550MPa, the flexibility is good, but the stiffness is insufficient, and the material of PPR pipe is random copolymer polypropylene, the elastic modulus of PPR water pipe is 850MPa, the stiffness is good, but the flexibility is insufficient. Plastic PVC is a polyvinyl chloride resin material.
2. Different uses: Another difference between PE pipes and PPR pipes is the use, PE water pipes are often used for municipal water supply and drainage pipelines, while PPR water pipes are often used for building water supply and home decoration water supply pipelines. PVC pipes are used for water supply and drainage, irrigation, gas supply, exhaust pipes, wire conduits, rainwater pipes, industrial anti-corrosion pipes, etc. for residential life, industrial mining, and agriculture.
3. Different installation: PE water pipe and PPR water pipe installation and welding are also different, PPR water pipe installation and welding temperature is 260, PE water pipe installation and welding temperature is 230. The installation and welding temperature of PVC pipe is 200 230.
PVC installation precautions.
1. When installing, the size should be measured according to the requirements of the drawings, the pipe should be broken, and the fracture should be ensured.
2. It cannot be fully inserted before the connection of PVC pipes, and the socket needs to be test-inserted. When bonding, if there is oil, dust, and even moisture inside, it must be removed.
3. Inspection openings should be set at the bottom and top of the drainage pipe, and the center of the inspection port should be one meter from the ground.
4. During the installation, the pipe should be placed gently to avoid damage caused by the installation process and ensure that the pipe can be kept complete and clean. After installation, a pressure test should also be carried out to confirm that there is no water leakage at each interface, otherwise it needs to be replaced and reinstalled immediately.
The above content refers to Encyclopedia-PPR Tube.
Encyclopedia-PE pipes.
Encyclopedia - PVC pipe.
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Water pipes are indispensable building materials in our daily life, and they can be seen in both construction and urban projects. However, in use, many users are confused about these two types of water pipes. So what is the difference between PE pipe and PVC pipe?
What is the difference between PE pipe ruler and PVC pipe?
The toughness and hygienic properties of PE pipes are good, while PVC pipes are poor, and they are also brittle when installed; Secondly, PE pipes need hot melt technology when they are connected, while PVC pipes are connected by glue rings and threads according to the diameter of the pipes. Finally, under the same water pressure, the PE pipe wall is not only thicker than PVC, but also more expensive.
How to choose PVC pipes:
1. Quantity: First of all, in the selection of PVC pipes, it is necessary to measure whether the wall thickness is up to standard, and it should be noted that some manufacturers use the method of evacuation in order to reduce costs, resulting in the thickness of the pipe at both ends reaching the standard, and the middle wall thickness is thinner, which cannot be used normally.
2. Look: Secondly, look at the gloss of the surface of the water pipe, the surface of the water pipe is generally oily, and the color is light beige. On the contrary, some tubes have a dull surface and are yellow and black, so it is not recommended to buy them.
Because these tubes may be made of too many miscellaneous materials or ** materials in production.
3. Weigh the weight of the pipe, it is best to weigh two pipes of the same specification, if one of them is heavier, it is not recommended to buy, it may be that too many impurities are added, and it cannot meet the use standard.
4. Fall: Finally, you can drop the PVC pipe to the ground or step on the pipe with your feet to see if the pipe is cracked or broken. If it is fragile, it means that the manufacturer has mixed too much calcium powder into the pipe in order to save costs during production, which will lead to a decrease in the hardness of the pipe.
On the contrary, whether the high-quality pipe is stepped on by foot or rolled by turning, it will only be flattened but not broken.
Summary: The above is the difference between PE pipe and PVC pipe and how to buy PVC pipe for everyone, I hope to help friends who need to know, if you need to know more about related knowledge in the later stage, welcome to pay attention to Qeeka Home information.
I don't know how big the PVC pipe 2cm you said, I've been doing this for a few years, I haven't measured it like this, don't laugh at it, I think you're talking about the PVC insulated flame retardant electrical sleeve (PVC threading pipe, used to thread wires) Its specifications are: 16 20 25 32 40 50 63 You should have a spring there when you buy it, and the special one is the cold bending method you say, and the construction site is all like this, but it takes a little bit of technology to bend well, and it is absolutely different from the bending that has not been done. That is to say, it depends on the quality and technology of the tube, and there are not many on the market, which depends on what you are using this shelf for. Strict, no? >>>More
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Insert PVC pipes in the cross-section (transverse or vertical) of concrete beams, generally reserved holes, to avoid damage to concrete strength or accidental damage to steel bars in the future. In this case, the height of the indoor space is generally small, the clearance height at the bottom of the beam is not enough, if the pipeline passes through the bottom of the beam, it will affect the use of the clearance height (such as the floor 3000, the beam height is 700, and the fire D 100 pipeline is installed below, the wire tray, etc.), if the ceiling is also to be set up, the clearance under the ceiling is too small, which affects the use of height, or the visual sense is not good. At this time, the design arranges some equipment to pass through the beam to facilitate the spatial layout, and the pipe hole is inserted in the beam in advance.