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Home / Products / Heating Water Filter Heating System Filter Magnetic Sludge Separator FDM-2B 3/4
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Heating water filter heating filter magnetic sludge separator filter FDM-2B

with 3/4" brass thread

The heating water filter filters magnetic and non-magnetic particles and especially loosened corrosion deposits 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.

“Highest quality – 10-year warranty – Made in Italy – No cheap imported goods from China!”

A magnetic sludge separator (heating water filter) offers a range of benefits for heating systems – especially for water-based systems with radiators or underfloor heating. Here are the main advantages and benefits at a glance:


🔧 Benefits of a magnetic sludge 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 or heating valves.

  2. Protection against corrosion:

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

  3. Increased efficiency of the heating system:

    • Less buildup = better heat transfer.

    • Fuel consumption can decrease because the system runs more efficiently.

  4. Extended service life of the heating system:

    • Less wear thanks to clean heating water.

    • Saves repair and maintenance costs in the long term.

  5. Easy maintenance:

    • Most filters can be cleaned or flushed without much effort.

    • Magnets can be easily removed for cleaning.

  6. Improved water quality:

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

    • Supports compliance with VDI 2035 (recommendation for water quality in heating systems).

  7. Ideal for refurbishment or retrofitting:

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


Benefits in practice:

  • Fewer malfunctions and failures.

  • Lower maintenance effort for specialist companies.

  • Sustainable operation of the heating system – ecologically & economically.

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



Technical data:

3/4” brass connection
Housing and cover: Reinforced polyamide PA66
Filter element: Stainless steel AISI 304 L
O-rings: EPDM
Drain thread: Brass CW 614 N - 1” inch
Magnet: NdFeB - 4500 Gauss - brass magnet holder CW 617 N
Magnet holder: Polypropylene
Filtration level 500 μm


Dimensions: 135 x 180 x 70 mm (HxWxD)
Operating pressure: maximum 3.0 bar
Temperature range: 4 - 90 °C

Areas of application: Heating protection filter

You will receive a heating protection filter FDM-2B.

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