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Heating water filter Heating filter Magnetic sludge separator filter FDM-2B

with 3/4" inch brass thread

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

“Highest quality – 10 years warranty – Made in Italy – Not cheap import goods from China!”

A magnetic sludge separator (heating water filter) offers a number 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:


🔧 Advantages 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:

    • Fewer deposits = better heat transfer.

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

  4. Extension of the service life of the heating system:

    • Less wear due 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. Improvement of water quality:

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

    • Promotes compliance with VDI 2035 (recommendation 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.

  • Reduced maintenance effort for specialist companies.

  • More sustainable operation of the heating system – ecological & economical.

  • Sensible investment for new systems or as a retrofit.



Technical data:

Brass connection 3/4“ inch
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 - Magnet housing brass CW 617 N
Magnet holder: Polypropylene
Filtration rating 500 μm


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

Application areas: Heating protection filter

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