Pipework

After installation, steel pipework can contain steel swarf, millscale, grease, hemp etc.  Unless these items are removed, they can cause problems later.  A chemical clean (“precommission clean”) is carried out using a chemical cleaner which can contain detergent, dispersant, de-greaser etc.

After cleaning, a corrosion inhibitor should be added and afterwards monitored regularly.

If there is a chilled water system as well, it may be necessary to add antifreeze to avoid frost damage in cold weather.

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