The difference between PE pipe and PPR pipe fittings

1. Brief introduction of PE pipe

PE pipe is a pipe made of polyethylene material through processing technology. According to different polymerization conditions such as temperature, resins with different densities can be obtained, so there are high-density polyethylene, medium-density polyethylene, and low-density polyethylene.

2. Brief introduction of PPR pipe

PPR water pipe is a kind of polymer material pipe. PPR is the abbreviation of Polypropylene-Random in English. Commonly known as three-type polypropylene. PPR pipe is an updated product of UPVC water supply pipe, aluminum-plastic pipe, PE pipe, PE-X pipe, and PE-RT pipe. Because it uses random copolymerization technology, the strength and high-temperature resistance of polypropylene are well guaranteed, thus becoming the main force of water pipe materials.

Three, the advantages of PE pipe

1. The connection is reliable, and the connection part of the sleeve pipe fitting or the locking pipe fitting is firm, and there will be no leakage.

2. Polyethylene has good low-temperature impact resistance and low low-temperature embrittlement temperature and can be used in the temperature range of -6OC. In winter construction, due to the good impact resistance of the material, pipe brittleness will not occur.

3. Good resistance to stress cracking, small gap, high shear strength, good scratch resistance, and outstanding environmental stress crack resistance.

4. It has good chemical corrosion resistance and can withstand the corrosion of various chemical media. The existence of chemical substances in the soil will not cause any degradation to the pipeline. 5. Good wear resistance, which means that PE pipes have a longer service life and better economy.

6. Good elasticity, the dexterity of the pipeline makes it easy to bend, and the project can change the direction of obstacles around the pipeline. In many cases, the dexterity of the pipeline can reduce the number of pipe fittings and reduce the installation cost.

7. The flow resistance of PE pipe is small, the performance is stable, and there is no adhesion, which ensures that PE pipe has a higher conveying capacity than traditional pipes, and also reduces the pressure loss of the pipe and the energy consumption of water.

8. It can be coiled into a thin circle, is easy to install, use, and recycle, and can be used repeatedly.

Fourth, the advantages of PPR pipe

1. PPR pipe has good corrosion resistance, does not form scale, does not breed bacteria, and can avoid the worries of pipe scaling and clogging, and macular rust on basins and bathtubs. 2. PPR pipes have been strictly tested and fully meet the national drinking water standards, and can be used in drinking water and food industry piping systems.

3. The softening temperature of the PPR pipe is 131.5 degrees. Under long-term continuous working pressure, it can transport hot water with a water temperature of up to 95 degrees. At the same time, it has good thermal insulation performance, and the thermal conductivity is about 1/200 of that of metal pipes, which reduces the heat loss in the process of conveying hot water.

4. The inner wall of the PPR pipe is smooth, the water flow resistance is small, and the flow rate is large. Compared with the metal with the same inner diameter, the flow volume can be increased by more than 30%. 5. PPR pipe has good toughness, impact resistance, and high mechanical strength, especially in low-temperature and high-temperature environments.

6. The weight of PPR pipe at 20C is only one-ninth of that of steel pipe, and one-tenth of that of copper pipe. The weight of the product is light, which greatly reduces the construction strength. 5. Which is better, the PE tube or the PPR tube?

1. Heat resistance

The maximum stable temperature of the PE water pipe is 70°C, and the minimum temperature is minus 30°C. The maximum stable temperature of the PPR pipe is 70°C, and the minimum temperature is minus 10°C. It can be seen that the PE water pipe and the PPR water pipe have the same high-temperature resistance, but the low-temperature performance of the PE pipe is better than that of the PPR pipe.

2. Welding method

There are similarities and differences in the welding methods of pipelines. Both kinds of pipes can be connected together by hot-melt welding, but the PPR pipe will be relatively simple during the construction process, and its edges are relatively smooth. The pe pipe is irregular, and it is easy to block after a long time of use.

3. Soldering temperature

The welding temperature of the PPR pipe can reach 260 degrees, but the pe pipe can only reach 230 degrees, which will be lower than the PPR pipe. 4. Low-temperature impact strength

Why PPR pipes are preferred for water pipes is precise because PPR pipes are stronger than pe pipes and can withstand the impact of water pressure. PE pipes are more flexible than PPR pipes. 5. Pipe size

The size of the PE pipe can reach dn1000, so it is often used for drain pipes. The PPR pipe size is dn160, so it is often used as a water supply pipe.


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