PE pipe is widely used in the field of water supply and drainage manufacturing due to its high strength, corrosion resistance, non-toxicity, and wear resistance. It plays an important role in the field of pipeline transportation. In today's market, some illegal manufacturers are gradually reducing production costs in pursuit of high profits, which seriously affects the product quality of PE pipes, not only affecting water quality, but also causing great harm to health and environmental protection.
1. Look at the appearance
The inner and outer surfaces of high-quality PE pipes are smooth and free of defects such as bubbles, depressions, impurities, etc.;
Inferior PE pipes have uneven inner and outer surfaces, not shiny, pitted, and obvious depressions on the inner and outer surfaces.
2, look at the wall thickness
The wall thickness of each point of the high-quality PE pipe is relatively uniform;
Disadvantages PE pipes are not uniform due to poor extrusion equipment.
3. Look at the ups and downs
The density of high-quality PE pipes is slightly less than that of water, and they are generally suspended or floating in water;
Inferior PE pipe, if more fillers (such as calcium powder, etc.) are added, it will sink to the bottom.
4. Look at the welding port
The high-quality PE pipe is uniformly flanged, dense and without pores during hot melting;
Inferior PE pipes are added with some recycled materials or the used raw materials have excessive water content, which will cause pores in the welding flanging.
The product after the high-quality PE tube is heated and melted has a slight plastic fragrance, and the product after cooling has no peculiar smell.
Inferior PE pipe has a pungent smell.
6, burning flame
The high-quality PE pipe burns and melts steadily, and the flame base is light blue with no peculiar smell.
Inferior PE pipes burn unstable, melt dripping irregularly, and have a small amount of black smoke and peculiar smell.
There are nine cold days. In fact, whether it is winter or summer, the requirements for municipal drainage equipment are very high, and PE management is duty-bound. Compared with metal pipes, the advantages of PE pipes are very obvious, and the physical properties are even more superior. The PE pipe is non-toxic and has strong impact resistance and stress crack resistance. From the perspective of application areas, PE pipes can be divided into five types: PE water supply pipes, HDPE drainage pipes, special pipes for ground source heat pumps, buried polyethylene PE gas pipes, and PE mining pipes.