FERRO Angled Filter with Magnet – Effective Protection for Water and Heating Systems

The FERRO Angled Magnet Filter is a simple and exceptionally effective solution that improves the performance and service life of heating and water supply systems. By combining a traditional mesh filter with a magnet, it effectively removes even very fine contaminants, such as magnetite produced by corrosion.

FERRO magnetic angle filters are designed for all types of plumbing and heating systems where the medium is water or a glycol solution (up to 50%). They can be used in:

• central heating systems (with boilers and heat pumps),

• cooling and air conditioning systems,

• water supply systems,

• systems using renewable heat sources, such as solar systems.

Their primary function is to protect system components from contaminants such as sand, rust, or magnetite—a black sludge that forms as a result of corrosion of system components. Thanks to the use of a neodymium magnet with high magnetic pull, the FERRO filter allows for the nearly complete removal of metallic particles, which protects the system from a drop in efficiency.

Filter Design and Technical Specifications

• CW617N-4MS brass housing , ensuring resistance to high pressure and temperature,

• A mesh filter made of AISI 304 stainless steel with a mesh density of 0.36 mm², which traps solid particles,

• An N35 neodymium magnet with a strength of 6,000–9,500 Gauss, housed in a brass casing—responsible for capturing magnetite,

• Operating temperature up to 100°C and operating pressure up to 1.6 MPa (16 bar).

Thanks to its compact design, the filter can be installed even in spaces too small for the FERRO magnetic contaminant separator. Various diameter options (DN 15–50) are available, allowing for adaptation to different types of installations.

Principle of Operation and Efficiency

The FERRO filter combines two filtration mechanisms: mechanical and magnetic. First, a stainless steel mesh traps larger solid particles; then, a neodymium magnet attracts the smallest magnetic fractions—iron oxides, known as magnetite.

This is a byproduct of the corrosion process. Even small amounts of it can cause:

• blocking of valves and flow meters.

• reduced efficiency of circulation pumps,

• uneven heating of radiators,

• increased energy consumption and system failures.

Thanks to its built-in magnet, the FERRO filter eliminates this problem and extends the service life of the system’s most sensitive components.

Angled Filter with Magnet – Installation Instructions

The product can be installed in any position, provided that the flow direction is taken into account and the plug is oriented downward—so that contaminants settle at the bottom. Here are the basic guidelines:

1. Shut off the system and check the pressure to ensure safety.
2. Mark the direction of medium flow —it is indicated on the filter body.
3. Remove the magnet to prevent it from being damaged during installation.
4. Seal the threads with Teflon tape or hemp.
5. Tighten using a wrench only on the octagonal connections—do not turn the filter body.
6. After completing the installation, place the magnet back into the filter and check the system for leaks.

The filter is typically installed on the return line of the system upstream of the heat source (e.g., a boiler or pump), where the risk of equipment damage from sediment is highest.

Cleaning an Angled Filter with a Magnet

To ensure the filter functions effectively, it should be cleaned at least once a year—preferably before the heating season. Here’s how to do it:

• Close the valves and unscrew the filter cap.

• Remove the magnetic cartridge and clear out the sediment.

• Rinse the filter screen under running water.

• Check the gaskets and the condition of the insert, and replace any parts as needed.

• Reassemble the filter and make sure there are no leaks. Key Benefits of the FERRO Filter

Compared to traditional mesh filters, the magnetic version offers greater efficiency:

• It removes nearly 100% of mechanical and magnetic contaminants ,

• Protects the system —extends the service life of pumps, valves, boilers, and heat exchangers,

• Saves energy —a clean system operates more efficiently,

• It is easy to maintain —quick disassembly and easy access to filter cartridges,

• It has a compact design —ideal for installation in confined spaces,

• It is versatile —it can be used in water, heating, cooling, and solar systems.

The FERRO magnetic slant filter is a small but extremely important component of the system. Its use significantly impacts the longevity, efficiency, and reliability of the entire system. It’s an investment that pays for itself.

You can find more expert advice on the FERRO PRO YouTube channel.