HDPE pipes are widely used in the repair and laying of engineering communications. It is ideal for both small private houses and spacious cottages. Low cost, simple installation, long service life and variability of use often make you choose pipes from this material.
Sometimes HDPE pipes are called polyethylene pipes.
They are tested to withstand high temperature water, a variety of chemicals and solvents.
For potable water systems, the pipes are blue or with blue stripes.
How suitable they are for this function can be seen in the certificate, where this information is written.
HDPE pipes are made of polyethylene. A method is used, the essence of which is the continuous extrusion of the molten mass.
Initially, raw materials can enter a special compartment in the form of powder or granules.
There are two main types of work for the production of polyethylene.
High pressure. This process produces a low density material. It is flexible and soft and cannot be used for pipes.
But for packaging it is good.
Low pressure (20 atmospheres and 150 degrees of heat) At the exit, polyethylene already has a high density and strength. Pipes are made from it.
Advantages in use.
They are not exposed to chemical elements, do not oxidize or rust.
Pipes have the ability to grow without breaks in diameter and return to their original state.
Disadvantages in application.
Sometimes hot water cannot be used.
Pnd pipes are divided into pressure and non-pressure.
The former are used for water supply and gas communications.
The second is for the storm and faecal system.
The differentiation of types by purpose is as follows:
Their cost depends on the technical characteristics:
Fittings are used in the installation. Pipes can be combined with each other by two types of soldering - in a socket and butt.
When connected without breaking the technology, the soldering points will be durable and will not undergo destructive changes.
Fittings are compression and electrofusion. In the first case, a special rubber ring is pressed with a nut. Installation resembles the technology of joining metal-plastic pipes.
When using a spanner or spanner, care must be taken not to damage the integrity of the structure.
Electrofusion fittings are more expensive.
There is a special heating element in their design. By the code on them, you can determine the required voltage and soldering time.
Due to the destructive effect of sunlight, it is recommended to lay plastic pipes in such a way that the area of exposure to UV rays is minimal.
If the system is mounted underground, then the pipe must be laid in the form of a snake.
This is due to the difference in temperature between winter and summer, as well as a large coefficient of thermal expansion.
Such communications are economically beneficial.
Long life at low prices is a huge advantage. This is why they are so widely used.
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