Protective anode made of magnesium alloy with zinc plating. plug - 6/4 "x700mm; dia. 32mm; 800-2000l IVAR.AM5

Product detailed description

Protective anodes are essential components in thermal energy storage systems and hot water tanks where internal corrosion must be controlled. Installers working in residential and commercial buildings often encounter systems where the water is heated and stored for extended periods. In such environments, metallic components are exposed to electrolytic processes that can lead to degradation over time. Sacrificial anodes, such as those made from magnesium alloys, are used to mitigate this risk by corroding preferentially instead of the tank walls or internal components.

The installation of a protective anode is typically part of a larger system design involving water heating units, circulation pumps, and insulation. The anode must be correctly sized and positioned to ensure effective corrosion protection. This requires an understanding of the system’s volume, water quality, and expected service life. The anode should be installed in a location that allows for easy access during inspection or replacement.

Technical parameters

Installation and connection

Installation involves connecting the anode to the designated port on the tank using a threaded connection. The anode has a plug with a zinc plating that provides additional corrosion resistance. The installer should verify that the connection is secure and watertight to prevent leaks. Common mistakes include incorrect orientation or failure to clean the connection surface before assembly. It is important to follow the manufacturer's guidelines for tightening torque and sealing methods.

Compatibility and accessories

This protective anode is compatible with standard hot water storage tanks and thermal accumulators designed for internal anode installation. It does not require additional control units or electronic components. For systems requiring electronic monitoring, alternative models such as IVAR.AE or IVAR.AM5 are available. No special tools are required for installation, but a wrench or spanner may be needed for securing the threaded connection.

Technical background for designers

The anode operates on the principle of galvanic corrosion, where the magnesium alloy acts as the sacrificial metal. When connected to the tank body, which is typically made of steel, the magnesium corrodes preferentially, protecting the tank from degradation. The zinc plating on the plug enhances the initial corrosion resistance and ensures a stable electrical connection. The effectiveness of the anode depends on factors such as water conductivity, pH level, and the presence of dissolved oxygen. The system must be electrically continuous for the anode to function correctly.

Service and operation

Regular inspection is necessary to assess the condition of the anode and determine when replacement is required. Signs of significant corrosion, such as pitting or thinning, indicate that the anode is nearing the end of its useful life. The service interval depends on the water quality and system usage. During inspection, the installer should check for leaks at the connection point and ensure that the anode remains fully submerged in water.

Frequently asked questions

Can the protective anode be installed in existing hot water tanks?
Yes, provided the tank has a suitable port for the anode and the internal structure allows for proper positioning.

Does the anode require electrical power to operate?
No, it functions passively through electrochemical processes and does not need an external power supply.

What is the difference between this model and the IVAR.AE version?
The IVAR.AE includes an electronic control unit for monitoring and diagnostics, while this model is a basic sacrificial anode without additional features.

Is the zinc plating on the plug sufficient for long-term corrosion protection?
The zinc plating provides initial protection and improves the connection stability, but the magnesium body is the primary sacrificial element in the system.