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The genuine PPR pipes available on the market are so good and yet so expensive – can you really tell the difference between genuine and fake ones? PPR pipes, also known as type 3 polypropylene pipes or hot and cold water pipes, are essential materials for home installations. Currently, the genuine PPR pipes available on the market are mainly imported from abroad, and their price is relatively high, at around 15,000 per ton. PPR pipes feature light weight, corrosion resistance, no scaling, and a long service life. To reduce costs, some manufacturers add calcium carbonate at a cost of only 2,000 to 3,000 yuan per ton when producing PPR pipes. This product ages easily and has a short lifespan. How to tell genuine PPR pipes from fake ones? Learn these four tips! 1. Combustion: Select two identical long PPR pipes and light them on fire, then observe the residues left after combustion. The fewer residues there are, the purer it is; the more residues there are, the more impurities it contains. 2. Check the weight: http://www.yeyajian.cc/file/upload/201605/17/10-59-12-53-1.jpg “For one-yuan coins produced after 2004, the standard weight is 6 grams.” ”A one-dollar coin was taken out and set aside. Then, a small section of PPR pipe was cut off and weighed on an electronic scale; it was ensured that the PPR pipe used in the experiment weighed 60 grams, which is 10 times the weight of the coin. Then, make a small cut in the PPR pipe and insert the coin there. Then he prepares another basin of water. An important step comes now: the PPR pipe with the coin inside is placed in water, and the PPR pipe floats on the surface. “This PPR pipe is genuine. ”If a PPR pipe sinks in water, then it must be contaminated with impurities such as calcium carbonate. Principle: The specific gravity of pure water is 1, while that of genuine PPR pipes ranges between 0.90 and 0.91, so they do not sink in water. The specific gravity of calcium carbonate is above 2.7, and once it is incorporated into PPR pipe materials, it increases the specific gravity. They conducted many experiments, and the weight ratio of PPR pipes to coins is 10:1. When placed on the water surface, genuine PPR pipes will not sink. When recycled material is used, the color is poor and black spots appear; when powder material is added, the surface and inner cavity of the pipe give a slightly dry feel, though it’s not very noticeable. 3. Hot melting: Check whether sticking to the mold occurs during hot melting; if it does, it indicates that the material is of poor quality. 4. Check toughness: Hit it again. Just because a pipe cannot be broken does not mean it is of good quality; it must remain unbreakable despite a certain level of impact. Because if it’s too soft, the performance of the pipe with hot water will be poor; if it’s too hard, it’s prone to cracking in winter. If it’s either too soft or too hard, there’s a high likelihood that inferior materials have been used in its formulation. PPR is made by modifying PP to produce material suitable for hot water use, or PPB for cold water use in plumbing applications. Its products possess good toughness, high strength, excellent processability, good resistance to creep at high temperatures, and also benefit from the high transparency characteristic of random copolymerized polypropylene.