Accompanied by the accelerated demand for PE pipes in many urban planning and construction today, there is also a lot of demand for PE pipes, but in some cases we have no way to ensure that their quality is all very good, and the raw materials of pipe fittings used in conjunction with each other are also All are different.
When the cracked part is relatively large, the following methods can be applied: One of the methods is to use two gate valves and a water pipe that needs to be replaced. The advantage of this method is to solve the problem in the case of repairing. It is relatively fast, but the defect is that the bolts of the flange feet are in the soil, so the plastic in the pipe clamp is very easy to embrittle, so it is almost enough to use 2 to 3 times; there is also a way It is that the foundation pit does not need to independently excavate the PE pipe water pipe, and directly uses the docking machine to connect the two flange heads, and then applies the plastic expansion device in the middle. In this way, the damage to the expansion and contraction of the PE pipe is relatively small. However, in actual operation, it is necessary to excavate a large working face from the middle of the foundation pit, and then put it into the docking machine for connection.
