Magnesium anode 21x280 3/4" 22173

Cathodic protection of tanks – how does it work?

A magnesium anode is a key element in protecting against corrosion in water heaters and enameled tanks. Its operation is based on a simple principle: magnesium is a chemically more active metal than steel, so it corrodes instead of the steel tank. In practice, this means that the anode "takes over" the corrosion process, thereby protecting the internal enamel coating and preventing the formation of micro-defects. This translates into a longer service life of the device and safe use.

The magnesium anode, by generating a protective current, creates a protective barrier. In the event of damage to the enamel, the current flows through the anode, not through the steel tank – it is the anode that dissolves. It should be remembered that magnesium anodes are consumed over time and require periodic replacement.

Characteristics and application of the 21x280 3/4" anode

This magnesium anode with dimensions of 21x280 mm and a 3/4 inch thread is intended for use in water heaters and enameled tanks. Its rod construction provides an effective surface for delivering protective current. The net weight of the anode is 0.24 kg. It is compatible with a wide range of Biawar models, including OW-E 50.1+/80.1+/100.1+, OW-E 60.5/80.5/100.5 and VIKING E 60/100 and VIKING SMART 80/100 (full compatibility list available in the manufacturer's technical documentation).

Why choose a magnesium anode?

• Effective corrosion protection: Prevents damage to the internal enamel coating and extends the life of the tank.

• Simple installation: The 3/4 inch thread allows for easy installation in most standard water heaters.

• Low price: It is a relatively inexpensive way to protect against costly repairs resulting from corrosion.

• Compatibility: A wide range of applications means that the anode fits many popular Biawar models and others.

• Safety: Protects against potential failures caused by corrosion, ensuring safe use of the device.

• Easy replacement: Regular replacement of the anode allows you to maintain optimal corrosion protection for a long time – replacement is simple and does not require specialized tools or skills.