Foam and Level Measurement and Control



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Charis at Work.....Paint and Resin Manufacture

A process where a vacuum can cause foaming is in paint production where a vacuum is used to extract solvent. A well known UK based company was experiencing considerable disruption to their process due to foam until a Charis Foam Control system was fitted. On sensing foam the system closed the vacuum valve and injected controlled amounts of nitrogen to the process. This restored the stability of the process and provided considerable cost savings in lost production time and anti-foaming treatment.

Charis designed a special high-sensitivity foam sensor to deal with a problem caused by a gas stripping process used in resin manufacture. The nature of the foam was such that it proved very difficult to measure and it needed Charis expertise to design the high sensitivity system to control the problem.


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