Polyethylene is used in a number of states as material for the production of pipes for transporting gas, for water-supply systems, sewerage systems and systems for irrigation, systems for heating, industrial systems and for telecommunications.
Table of development of polyethylene
This material has the following advantages:
- low specific gravity – high flexibility;
- good chemical resistibility;
- excellent weld ability;
- excellent resistibility to heat;
- resistibility to displacement of the terrain;
- a smooth interior of pipes with a resistibility to precipitates;
- health approved when in contact with food products.
Today, polyethylene is not classified according to its density (Type 1; Type 2; Type 3) anymore, but it is divided into classes (PE 63; PE 80; PE 100).
The latest development of polyethylene is the third generation HDPE, classified as PE 100. These materials are also described as MRS 10 materials. Anyway, PE 100 has improved mechanical characteristics such as increased incompressibility hardness.
As a result, this material is suitable for the production of wide diameter pipes and hoses under pressure and, in comparison to PE 80, it has 33 percent lesser thickness of the wall.