PE drainage pipes are divided into drainage pipes, sewage pipes and rainwater downpipes. How to choose PE pipe?
PE pipe has the following characteristics:
(1) Good chemical corrosion resistance;
(2) Self extinguishing and flame retardant;
(3) Good aging resistance, 30-50 years of use at - 15 ℃ - 60 ℃;
(4) Good electrical performance;
(5) The inner wall is smooth, the surface tension of the inner wall is small, and it is difficult to form scale;
(6) Lighter than steel pipe and iron pipe, easy to expand, bond and bend;
(7) PE pipe has low toughness, large linear expansion coefficient and narrow temperature range.
How to choose:
PE drainage pipe has a wide range of raw materials and low production cost, so there are many manufacturers nationwide. So as to give Ultra wear-resistant composite pipe The PE drainage pipe market has caused great confusion, so users should pay special attention to:
1. For the most common white PE drainage pipes at present, the color is milky white and uniform, and the inner and outer walls are relatively smooth but a little bit dull. The color of the super wear-resistant composite pipes and the less common PE drainage pipes is not snow-white, some are yellow and hard, some are uneven in color, some are particularly smooth on the outer wall, while the inner wall is rough, and sometimes there are pinpricks or holes.
2. The toughness of PE drainage pipe is a key indicator. When we saw the super wear-resistant composite pipe into a narrow strip, we tried to fold it 180 °. If it breaks once, it means that the toughness is very poor and the brittleness is great; If it is difficult to break, it indicates that the pipe has toughness, and it needs more effort to break when breaking. The strength is very good, and the toughness is generally good.
3. The impact resistance of PE drainage pipe can also be roughly judged by a simple method. The super wear-resistant composite pipe can be sawed into 200mm long pipe sections, which can be pounded with a hammer. Good pipes are hard to be broken by manpower at one time.
