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Home / Products / Heating System Water Filter, Magnetic Sludge Separator FDM-3
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Heating water filter, heating system filter, magnetic dirt separator filter FDM-3 

with 3/4" and 1" plastic threads


The heating water filter filters magnetic and non-magnetic particles, especially corrosion deposits loosened in older heating systems.
Contaminants from heating, cooling, and solar systems. Iron-containing contaminants, as well as non-magnetic contaminants and sludge, are filtered out of the heating water.


"Top quality – 10-year warranty – Made in Italy – No cheap imports from China!"

A magnetic dirt separator (heating water filter) offers a range of benefits for heating systems, especially water-based systems with radiators or underfloor heating. Here is an overview of the main advantages and benefits:


🔧 Advantages of a magnetic dirt separator:

  1. Removal of magnetic particles (e.g.  iron oxides / magnetite):

    • Prevents deposits in radiators, heat exchangers, and valves.

    • Protects sensitive components such as circulation pumps and heating valves.

  2. Protection against corrosion:

    • Iron particles promote corrosion in the heating system. A filter significantly reduces this effect.

  3. Improved heating system efficiency:

    • Fewer deposits = better heat transfer.

    • Fuel consumption can be reduced because the system runs more efficiently.

  4. Extends the service life of the heating system:

    • Less wear thanks to clean heating water.

    • Saves on repair and maintenance costs in the long term.

  5. Easy maintenance:

    • Most filters can be cleaned or flushed with little effort.

    • Magnets can simply be removed for cleaning.

  6. Improved water quality:

    • Also protects against non-magnetic suspended particles (with combination filters).

    • Helps meet VDI 2035 guidelines (recommendations for water quality in heating systems).

  7. Ideal for renovation or retrofitting:

    • Especially recommended for older systems with steel pipes or cast-iron radiators.


✅ Practical benefits:

  • Fewer malfunctions and breakdowns.

  • Less maintenance work for service professionals.

  • Sustainable heating system operation – environmentally and economically friendly.

  • A worthwhile investment for new systems or as a retrofit.



Technical specifications:

Plastic connections  3/4" and 1"

Housing: Reinforced polyamide PA66.
Filter element: Stainless steel AISI 304 L
O-rings: EPDM
Drain plug: Brass CW 614 N - 3/4”
Magnet: NdFeB - 4500 Gauss - Brass magnet housing CW 617 N
Vent / filling plug: Brass CW 614 N
Mounting clip / fork: Stainless steel AISI 304
Plastic threads in 3/4” and 1”
Filtration rating: 500 μm


Dimensions: 135 x 188 x 145 mm (H x W x D)
Operating pressure: maximum 3.0 bar
Temperature range: 4 - 90 °C


Applications:  Heating system protection filter

 

You will receive one FDM-3 heating system protection filter.