Dirt separation
Air causes contamination
Air – in other words oxygen – can remain in the installation causing corrosion, and contaminating the system. The problems keep mounting at the expense of system efficiency.
The reaction between iron, water and oxygen is as follows:
O2 + Fe + 2H2O > Fe(OH)2 + H2
3Fe(OH)2 > Fe3O4 + H2 + 2H2O
This reaction creates magnetite (Fe3O4).
In the continued presence of oxygen, this magnetite will be converted into the much more voluminous haematite, Fe2O3. The following equation explains how:
4Fe3O4 + O2 > 6Fe2O3
How small can dirt particles be?
Some dirt particles are so small that they cannot be observed by the human eye. It is the smallest dirt particles (5-10 µm) that cause the most problems. A filter is often used to counteract this, but this solution is not ideal. Filters get blocked and must be regularly cleaned and replaced, resulting in extra work and costs. Spirotech has the most effective solution in its SpiroTrap dirt separator. A SpiroTrap dirt separator is almost maintenance-free and removes all dirt particles continuously. Independent tests show that even microscopic particles are removed from the fluid stream and that the SpiroTrap remains unaffected by the dirt collected. Furthermore, contrary to a filter, the SpiroTrap has a very low and constant flow resistance.
