HDPE double-wall bellows, referred to as PE bellows, was first successfully developed in Germany in the early 1980s
Double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. It has the characteristics of light weight, high pressure resistance, good toughness, fast construction, and long life. Its excellent pipe wall structure design is different from other structures. Compared with pipe materials, the cost is greatly reduced. And because the connection is convenient and reliable, it is widely used at home and abroad. Great replacement for concrete and cast iron pipes.
It is very mature in production process and application technology. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States.
Double-wall corrugated pipe Features
1. Unique product structure and strong pressure resistance.
2. The inner wall is smooth and the flow rate is large.
3. The product is easy to connect, the interface is well sealed, corrosion-resistant, zero leakage, no scaling, and avoids secondary pollution. It is an ideal “green pipe”.
4. The product has good flexural properties and can adapt to uneven settlement of soil.
5. Long service life, buried in the ground can be used for more than 50 years.
6. The product is light in weight and convenient in construction, which can reduce construction costs and shorten the construction period.
7. At a speed of 15 feet per second, the wear resistance is 3 to 5 times higher than that of ordinary or fine-grained steel pipes.
What is the wall thickness of hdpe double wall corrugated pipe?
Bellows are very common in daily life, but when many people buy bellows, they don’t know how to choose bellows very well. As a result, they find that the materials they buy do not meet their personal needs after purchasing. I will tell you below Talk about the wall thickness of the hdpe double-wall corrugated pipe and how to distinguish the quality of the corrugated pipe.
1. What is the wall thickness of hdpe double-wall corrugated pipe
There is no clear standard for the wall thickness of hdpe double-wall corrugated pipe, only the minimum lamination and inner layer of SN4 and SN8 are required to be the same. It is generally divided into two types of large and small outer diameters. If it is a bellows with a large outer diameter series, the wall thickness of DN500 is generally 8 mm, and the wall thickness of DN400 is 6 mm. If it is a bellows with a small outer diameter series, the wall thickness of DN500 The wall thickness of DN400 is 26mm.
Second, how to distinguish the quality of corrugated pipe
1. When buying bellows, first check whether the surface of the bellows is shiny and round. If the surface is pitted and looks white, it means that too much calcium powder has been added to the pipe during production. As a result, the flexibility of the pipe is reduced, and it is recommended that you do not buy it.
2. When purchasing, you can directly touch the corrugated pipe with your hands to feel whether the surface of the corrugated pipe is smooth, and then squeeze the pipe with your hands. If the pipe is dented after extrusion, it means that the quality of the pipe is not very good. If you press After the pipe has not changed, indicating that the quality of the pipe is still good.
3. Smell the bellows with your nose. Generally, good-quality bellows will not emit an unpleasant smell, but poor-quality bellows can smell obvious odors, and even emit a foul smell. Smelling it for a long time will make people feel uncomfortable, so don’t buy this kind of bellows.
Summary: The relevant content of the wall thickness of the hdpe double-wall corrugated pipe is introduced here, and I hope to help friends in need. In addition to paying attention to the purchase of corrugated pipes, the installation method of the corrugated pipes cannot be ignored. Professionals must be invited to install them on site to ensure that the corrugated pipes can be used normally after installation.