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Do you dare to believe that PPR tube should be smart and prefer "double eyelids"?

"Double eyelids" is a jargon that plumbers often say. The double eyelid of PPR tube is a hot and soft fold at the joint of two layers of tube by hot melting. The appearance of double eyelids means that the PPR tube overflows evenly, the structure is firm and perfect, and its service life will be longer in the later period. Double eyelid is not the only criterion to judge whether the water pipe will leak, but it should be one of the signs of successful water pipe welding.

The two key factors affecting the service life of water pipes are the quality of PPR water pipes and the hot melt welding process.

PPR is polypropylene. The molecular structure of high-quality PPR raw meal is only two elements, C and H, and it does not contain any toxic substances, so it belongs to green environmental protection materials. High-quality PPR pipes are produced with high-quality imported raw materials to ensure the health and environmental protection of pipes from the source and ensure the health of consumers' drinking water! Paikang PPR tube has pure color, smooth feel and smooth incision. The PPR tube doped with impurities is not only rough and impure in appearance, but also smelly. Everyone should pay attention to visual and olfactory observation when buying.

It should be noted that the harder the PPR tube, the better. High-quality PPR pipe has certain flexibility. That is, after a certain pressure is given to the pipeline, it is easy for the pipeline to return to its original appearance. Some manufacturers improve hardness by adding too much impurities such as calcium carbonate, which is easy to be brittle after a long time.

Whether PPR tube can produce "double eyelid" effect has the following three key points:

1, water pipe itself: high-quality PPR material is pure and single. If other materials are added to the water pipe itself, the materials will be uneven and the hot-melt joints will not be tight.

Plumber's craft: This is very important. Mastering hot melt welding is a "double eyelid". When hot-melting, make sure that the pipe incision is smooth, the hot-melting time is sufficient, and do not rotate when docking.

For people, single eyelids and double eyelids have their own beauty, but in the pipeline industry, double eyelids are beautiful.