Magnetic filters for central heating are elements that significantly increase the life of heating installations by protecting them against harmful contaminants, such as iron oxides, which are the main component of rust. Iron oxides are formed as a result of corrosion of metal elements in the installation and then circulate in the system, depositing in its various parts. Installing magnetic filters prevents the deposition of these particles, which protects the system against loss of efficiency and increases its durability.
Principle of operation of magnetic filters
Magnetic filters work by capturing iron oxide particles and other impurities that may be present in the heating medium. They are particularly effective in installations where the heating medium is a solution of water and glycol (with glycol content up to 50%). These filters can also be used in refrigeration and solar systems, where they additionally capture impurities such as sand. These systems use double filtration, which enables effective removal of both magnetic and non-magnetic particles.
The key element of the magnetic filter is a magnet with a strength of 9000 Gauss, which separates magnetite and other ferromagnetic impurities. Non-magnetic impurities are captured by an additional filter element in the form of a mesh or sleeve. This design ensures effective filtration without disturbing the flow of the heating medium.
Installation of magnetic filters
The installation of the magnetic filter should be carried out in accordance with the manufacturer's guidelines and the specificity of the heating installation. Magnetic filters are usually installed on the return line before the boiler, at a distance of at least 1 meter from the boiler, to effectively protect the system against contamination. Installation should be carried out after turning off the installation, draining the water and properly preparing the installation site.
During installation, install the shut-off valves and gaskets supplied with the filter. It is important that the direction of flow of the heating medium is consistent with the arrows placed on the filter body. After completing the installation, make sure that all connections are tight, then start the installation and bleed the magnetic filter.
Why is it worth using magnetic filters?
The use of magnetic filters in central heating installations brings a number of benefits. First of all, these filters protect boilers, pumps and heat exchangers against contamination that may lead to their failure. Thanks to this, the installation operates more efficiently, which translates into lower operating costs and longer service life of individual elements.
Magnetic filters, thanks to double filtration, effectively remove both magnetic and non-magnetic impurities, such as sand. Regular maintenance of the filters, including cleaning and emptying them, ensures uninterrupted operation of the installation without the risk of sudden drops in performance.
Types of magnetic filters
There are several types of magnetic filters available on the market, which differ in technical parameters and scope of applications. The most commonly used models, such as the I-001 and I-002, can be mounted in both vertical and horizontal positions, while the I-003 model is designed for vertical installation only. The choice of the appropriate filter depends on the specificity of the installation and the available installation space.
Maintenance of magnetic filters
For the magnetic filter to serve its purpose for a long time, regular maintenance is necessary. The filter chamber should be regularly emptied of accumulated dirt using the drain valve. Regular maintenance not only ensures optimal operation of the system, but also extends the life of the filter itself.
