Can the PE water purifier pipe be buried directly?

install a water purifier at home, many people will find it difficult: the open pipe wall affects the appearance of the decoration, wants to bury the PE water purifier pipe in the ground, and is afraid that the "hidden" pipe is easy to break - can the PE water purifier pipe be buried directly? In fact, the answer is very clear: as long as the right materials are selected and the construction is done well, the PE water purifier pipe can be safely buried directly.

First talk about the "hard strength" of the PE pipe itself: PE (polyethylene) is a common material for water purification pipes, and it is naturally suitable for burial. It is corrosion-resistant and will not be corroded and rusted by acid and alkali in the soil like metal pipes; good flexibility, even if the ground has slight settlement, it can "follow the deformation" without cracking; and it meets food-grade hygiene standards and will not pollute the water purification. These characteristics are the "confidence" of direct burial.

But direct burial is not "just dig a hole and bury it", you have to grasp a few key points:

First, choose the right PE pipe grade. Be sure to choose a PE pipe dedicated to the water supply pipe (such as PE100 grade), do not use non-drinking water pipes or pipes made of recycled materials - the pressure level and hygiene standards of the water supply pipe are higher, and the burial ground is more secure.

Second, the burial depth should be enough. Generally, the burial depth of the pipe in the family courtyard or indoor is recommended to be 30cm; if it is under the roadway, it must be added to more than 50cm to avoid heavy objects crushing and breaking the pipe. The bottom of the ditch should be covered with 10-15cm of fine sand or soft soil, and sharp stones and bricks should be picked away to prevent puncturing the pipe body.

Third, the joint should be "welded firmly". The joints of PE pipes have to be connected by hot melt or electric fusion (don't stick with glue!). Hot melt is to heat and melt the two ends of the pipe and then connect it. Electric fusion is to use special pipe fittings for electric welding. The strength of such joints is higher than that of the pipe body and will not leak.

Fourth, backfill should be "gentle". Do not pour large stones or hard soil directly when backfilling. First fill it with fine sand or soil to 15cm above the top of the pipe, and then lay it down (about 20cm per layer) to prevent the pipe from being crushed and deformed.

Finally, be sure to do a water pressure test before burying: fill the pipe with water, press it to 0.8MPa (about 8 kg pressure), and keep it for 30 minutes without pressure loss, indicating that the pipe and joint are OK, and then bury it.

should also pay attention to a few details: the north should be buried below the permafrost layer in winter (for example, the northeast should be buried 1 meter deep) to avoid the pipe being frozen and cracked; if there are other pipelines (such as wires, gas pipelines) underground, keep a distance of at least 50cm and do not cross.

In fact, the core logic of the direct burial of PE water purifier pipes is very simple: with the protection of materials +, you can turn "hidden dangers" into "advantages" - after burying, it is both beautiful and avoids the problem of collision and aging of the open pipe. As long as you follow the above points, your home's PE water purification pipeline can be safely used for ten or eight years even if it is buried underground.

To summarize: PE water purifier pipes can be buried directly, but not "buried casually". Choose the right water supply pipe grade PE pipe, do a good job of burying depth and backfilling, welding joints, these three steps are in place, and direct burial is more worry-free than open pipes.