many people's impression of PE pipe may stay on the "drain pipe" and "threading pipe", it is inevitable to wonder: can PE pipe be used for water supply? Especially for conveying drinking water, is it safe? In fact, the answer is very clear - PE pipe can not only supply water, but also one of the high-quality pipes commonly used in the current water supply system.

First of all, it must be clear that the "identity" of PE pipe is not just the drain pipe. Its core material is food-grade polyethylene resin. This material itself is non-toxic, odorless and non-corrosive, and fully meets the standard requirements of the national "Polyethylene (PE) Pipeline System for Water Supply" (GB/T 13663). That is to say, as long as it is a drinking water grade PE pipe produced by a regular manufacturer, it will not precipitate any harmful substances into the water, and even the "last mile" from the water plant to the user's home can be transported with confidence.

Why is PE pipe suitable for water supply? Look at its "hard strength" to know:

First, it has strong corrosion resistance. Traditional cast iron pipes and galvanized pipes will rust after being used for a long time, which not only pollutes the water quality, but also blocks the pipeline; while PE pipes are not afraid of acid, alkali and salt erosion, even if buried in wet soil, they will not be corroded, avoiding the problem of "yellow water" and "rust water" from the root cause.

Second, the flexibility is good enough to "adapt to the terrain". PE pipe has low elastic modulus, and can slightly deform without breaking when encountering ground subsidence and mountain undulations - this is too important for the transformation of rural mountainous areas and old residential areas. After changing PE pipes in many places, there has never been "freezing crack and water leakage".

Third, the lifespan is long enough to "pass on to two generations". The design life of high-quality PE pipes can reach more than 50 years, which is much longer than galvanized pipes (20 years) and cast iron pipes (30 years). There is almost no need to replace them halfway, which reduces maintenance costs.

Look at the practical application: now most of the municipal water supply main roads, community branch pipe networks, and even rural "safe drinking water projects" in the country are using PE pipes. For example, in a rural area in the northwest, galvanized pipes were used to deliver water, but the water turned yellow in less than 10 years. After replacing it with PE pipes, the water became clear, and it was not crushed by agricultural machinery when buried under the ridge. PE pipes are used as indoor water supply pipes in new areas of first-tier cities, because it will not expand and contract like PPR pipes, and the construction is simpler.

Of course, it should be noted that "drinking water grade" PE pipes (marked "GB/T 13663" or "for food contact") must be selected, and drainage pipes cannot be used instead. As long as the right product is selected, PE pipes are definitely a "good helper" for water supply.

To sum up, PE pipes can supply water, and they are a safe, durable and economical choice. Whether it is municipal engineering or home decoration, choosing the right drinking water grade PE pipe does not have to worry about water quality problems at all - which is why it has become a "mainstream player" in water supply pipes.