| System pipelines are normally made of steel, non-ferrous metal or plastic. They must meet various criteria, which limits the choice of material for some applications:
- Protection against corrosion.
The question of resistance to corrosion is always a prime consideration unless the compressed air is dried in a pre-treatment
unit. The pipes must not rust through over the course of time.
- Maximum operating temperature.
Some materials lose tensile strength at high temperatures and become brittle at low temperatures.
- Maximum operating pressure.
The maximum operating pressure drops with increasing thermal stress.
- Low pressure loss.
Low pressure loss is obtained by high surface quality on the inside of the pipe.
- Low-cost installation.
Installation prices can be reduced by a multitude of pre-shaped parts, fast and easy installation and cheap material.
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