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Does HDPE pipes burst with frost?

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Today I want to talk about HDPE pipes. They say that pipes made of this material do not burst in the cold. Is it so? First, let's figure out what is HDPE?

It is polyethylene with a high degree of density. In other words it low-pressure polyethylene (0,941-0,965).

Externally pipes made of HDPE no different from pipes LDPE (high pressure polyethylene). Therefore, it is possible to objectively distinguish them only if there is a marking or a passport.

HDPE and LDPE pipes
HDPE and LDPE pipes

Overall pipes HDPE very solid. And if you run a sharp object along the surface of the pipe, there will be practically no scratches on it.

Now let's talk frost resistance. I think everyone knows that when it freezes, the liquid expands, providing strong pressure on the pipe surface. In this case, the material of the pipes does not matter. For all types there is a single rule - the thinner the pipe, the better its resistance to liquid freezing.

Generally HDPE pipes calmly withstand several cycles of defrosting and freezing. Therefore, if you are concerned specifically with the issue of material resistance to cold weather, then

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HDPE will be an excellent choice. The only thing I recommend is to pay attention to what the couplings and pipe connections are made of. Some materials cannot withstand even small cold snaps. As a result, the selection of the most durable pipes HDPE would be useless.

HDPE pipe for water supply, laid in a trench

HDPE retains its stability at temperatures up to -15 degrees. Freezing of the pipe can occur only when there is liquid in it for a long time. In this case, the material will not burst. It will only expand in size, which is absolutely not scary. Once the water has thawed, the pipe will return to its original size. These characteristics perfectly show strength and reliability. HDPE pipes.

In any case, when laying such pipes, it is necessary to move them as low as possible to the level of freezing of the ground. If the problem of freezing of the ground still overtook you, then the method of loosening the soil will help. Also, when laying pipes, electrodes or fire tools are sometimes used, which will also not be superfluous.

HDPE pipe connection

The result can be done as follows: HDPE pipes copes well with frost trials. This is a great solution to avoid problems in severe frosts. However, do not forget that various connections can fail. Fittings are usually made from other materials, some of which are very poorly freeze resistant.

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