Magnesium anode M8 33x370 - OKC200/250 (before 2018) 83.30.10

Corrosion protection in enamelled heaters

The magnesium anode is a key protective element in domestic hot water heaters, acting as active cathodic protection in combination with the enamel layer. Its main task is the neutralization of corrosive micro-cells that form in water installations containing various materials such as steel, copper, or brass.

In an aqueous environment, natural electrolytes are formed, which initiate corrosion processes between metals with different electrochemical potentials. Due to its electrochemical properties, the magnesium anode takes over the corrosion process, thereby protecting the metal structure of the heater from degradation.

Technical specification and compatibility

The magnesium anode M8 33x370 mm has been designed specifically for HEWALEX and DZ DRAZICE water heaters from the OKC200/250 series produced before 2018. The M8 thread allows for easy installation in the dedicated threaded holes of the heater.

The 33×370 mm dimensions ensure optimal contact surface area with the medium and appropriate electrochemical efficiency for water heaters with a capacity of 200-250 liters.

Anode depletion and maintenance

The magnesium anode is a consumable component that wears down during operation. The rate of depletion is not precisely defined and depends on many factors:

• Domestic water hardness - the harder the water, the faster the depletion
• Medium quality - the presence of aggressive ions accelerates the process
• Operating temperature - higher temperatures intensify electrochemical reactions

It is recommended to check the condition of the anode at least once a year. Replacement should occur when depletion exceeds 2/3 of the initial volume, but no later than every two years.

Importance of warranty and device durability

Regular replacement of the magnesium anode has a direct impact on maintaining the manufacturer's warranty. Documentation of performed replacements may be a condition for preserving warranty rights.

A correctly operated anode ensures:

• Long-term protection against electrochemical corrosion
• Maintaining the tightness of the enamelled tank
• Minimizing the risk of electric heater failure
• Maintaining domestic water quality standards