In ongoing operation, the substances suspended in the boiler water are concentrated. In order to avoid the negative consequences (foaming, deposits) of excessive salt content in the boiler water, specified limit values must not be exceeded. With the aid of a desalination control valve, boiler water with concentrated content is constantly removed and replaced with clean water. If the limit values are exceeded, the conductivity limitation ensures prompt switching off of the burner(s). Foreign substances that have sunk to the bottom of the boiler are removed by briefly opening a drainage valve.
By IGEMA GmbH based in Münster, GERMANY.
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