Elysator - Heating System

Heating System

The Problem

There are three major causes for corrosion in

closed water circuits: Diffusion of oxygen, forming

or entry of acids (low pH-value) and the content of

salts in the water.

Valves, threaded joints, recirculation pumps,

control units, automatic bleed devices or defective

expansion tanks are a significant source of

potential oxygen ingress. The oxygen diffusing into

the heating water leads to corrosion.

A low pH and increased electrical conductivity

in the system water also promote corrosion,

leading to clogging of the system by the products

of corrosion.

In the past, the most common method of

protecting against corrosion was to add chemical

corrosion inhibitors. However, in many cases it

was found that active protection was not achieved

in cracks or under deposited dirt or rust and there

was therefore no adequate solution to the problem.

Moreover, monitoring the addition of the correct

quantities of inhibitors is time-consuming and

costly and, if the wrong concentration is used, they

can lead to corrosion. The use of heat exchangers

to separate the system into a heating circuit

and a hot water circuit ultimately has the effect

of merely dividing the problem into two without

achieving active corrosion protection.

The Solution

The ELYSATOR corrosion protection system has

been used to extend the life of water circuits made

of metallic materials for over 30 years.

In the ELYSATOR method, high-purity magnesium

anodes in a Cr-Ni steel container are exposed to an

electrolytically induced reaction process, not only

reacting to form their familiar oxides but also

entering into neutralising compounds with various

aggressive substances in the water and thereby

reducing its corrosiveness.

Colloids with a redox action are additionally

formed from the anodes through controlled charge

circulation via the ELYSATOR. As soon as these

come into contact with the inside of the pipes in the

rest of the system, they act as mobile microanodes.

Through redox processes and slight alkalisation,

they also promote the build-up of a natural protective

layer in the pipe system.

The ELYSATOR process has no known or

theoretically conceivable negative effects on people

the environment or machinery components. The

ELYSATOR is recommended for new installations

as well as for retro-fit applications.

Good water treatment will lead to less energy

consumption and longer life of the components

involved.