In the former article we learned that PE pipe is a great material for water supply in municipal engineering and community. Besides, it’s also suitable for irrigation. However, you may experienced that the PE pipe leak during the usage. Then what cause the leakage? Let’s analyze next.
When doing the hot melt connection work, the temperature, pressure and time don’t meet the requirements of regulation. Then this cause the bad connection.
When install the underground pipe, didn’t fill the sand and backfill according to relevant regulations. Besides, the bury in somewhere is not deep enough, then cause the cover soil shallow.
Some straps and nuts are not tight because the installation of stand and strap is uneven. Besides, the season change cause vertical retraction and then cause uneven stress. As a result, it will crack the hot melt connectors.
Another reason is that to meet the deadline, install the pipe in uncompacted soil. Thus the uneven subsidence causes the uneven pressure. At last, the pipe bursts because of this.
When set the pipe, people seldom consider the retraction. However, it has great effect to the installation quality. Because vertical retraction cause larger displacement length and the pipe is easy to burst. Normally, we need to set corrugated compensator for long distance installation.
Rough construction conditions
In some cases, the construction is in the wild, thus it’s hard to control the temperature, humidity and dust. On such occasion, once we use the bad quality parts, there will be risk for long-term use.
The pipe may exposed in the air if the covered soil was transferred. People may think it’s a trash dump pit and burn something inside, then cause accident.
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