Grundfos revolutionises protection against mechanical failures in heating systems

The invisible threat: what is magnetite?

Magnetite, a mineral composed of iron oxide, forms in the water in heating systems due to the corrosion of metal components. Over time, these heavy particles build up, creating a black sludge that settles on the undersides of radiators and other critical areas. This sludge can block water flow, overload mechanical components and cause pumps and boilers to fail.

Grundfos: solutions to combat magnetite

Thanks to decades of experience in heating systems, Grundfos has developed innovative technologies to protect systems from the damaging effects of magnetite:

1. Magnetite-resistant materials:

   - Components such as bearings and shafts are made of ceramic and carbon, materials that do not attract magnetite.

   - Stainless steel coated rotating surfaces for added protection against impurities.

2. Optimized design to minimize build-up:

   - Flow conditions designed to prevent large particles from entering critical components.

   - Internal systems that ensure effective lubrication and cooling to prevent damage.

3. Specific magnetite testing:

   - During the development of its circulators, Grundfos performs magnetite resistance tests at its test facilities, ensuring reliable performance under real-world conditions.

4. Advanced control functions:

   - Automatic unblocking: Built-in function to release components blocked by debris.

   - Summer mode: Reduces the risk of blockages during long periods of inactivity.

   - Manual release screws to free shafts in case of severe blockages.

How to avoid magnetite formation

Grundfos recommends taking preventive measures to minimize the presence of magnetite:

- Check for leaks: Magnetite is generated in the presence of oxygen, so it is vital to identify and repair leaks in the system.

- Meet water quality standards: Use water that complies with standards such as VDI 2035 to prevent corrosion and residue formation.

Benefits of keeping your system magnetite-free

Magnetite protection not only prevents mechanical failures, it also offers key benefits:

- Increased system durability: Less stress on mechanical parts reduces wear.

- Efficient operation: Minimizes start-up problems after long periods of inactivity.

- Reduced costs: Avoids costly repairs and extends the life of equipment.

Grundfos, an ally for efficiency and durability

With its innovative approach and advanced design technologies, Grundfos is positioned as a benchmark in the protection and optimization of heating systems. Whether preventing magnetite build-up or ensuring performance for years, Grundfos circulators offer users peace of mind and efficiency.

Grundfos: creating solutions that protect your heating system while ensuring optimal performance.