HDPE Pipeline Rehabilitation
Polycan’s process uses HDPE pipe which has a slightly larger outside diameter than the inside diameter of the pipe being lined. During the installation process, the HDPE pipe is pulled through the pipe reduction method to temporarily reduce its outside diameter. The reduction allows the HDPE to be easily pulled through the host pipe by a winching method.
When the pulling force has been released, the HDPE pipe begins to revert to its original diameter. As the HDPE continues to relax, it presses tightly against the inside of the host pipe, eliminating the annular space.
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