How to connect double wall corrugated pipes? Many people have such a problem on Baidu or Google. For people in the industry, this is a simple question; for people outside the industry, some people ask this question.
Although the problem is simple, we are still willing to explain it to everyone. Double-wall corrugated pipes are not hot-melt sockets, hot-melt butt joints, electric fuse sockets, etc., like PE solid-wall pipes, because the structure of PE solid-wall pipes is relatively simple and can be applied to a variety of connection methods.
Double-wall corrugated pipe, also called HDPE double-wall corrugated pipe, has a smooth and flat inner wall and a corrugated outer wall. Its main purpose is drainage and sewage. Due to the special structure of the crest and trough on the outer wall of the double-wall corrugated pipe, it is not easy to perform electrothermal fusion connection.
The most suitable connection method for double wall corrugated pipes is the socket connection. Friends who have seen this kind of pipe will find that the double wall corrugated pipes are different at both ends, one is a flared structure, and the other is a small head structure. The two pipes can be perfectly inserted together through this structure, and it’s smart to make flared end towards to the drainage upstream, and the small end towards the drainage downstream, thus ensure the connection part much more safety from leakage.