Virtually any liquid which is to be used for human consumption must be pasteurized. Pasteurization is the process of killing any harmful bacteria present in the liquid.
The process involves heating the liquid to a suitable temperature and then holding the temperature constant for a set period of time. Generally, the higher the temperature used, the less time required to ensure pasteurization is complete.
Systems can include hot water or steam heating to produce the desired temperature. Although this is normally a closed loop, scale, corrosion and other particulates can be present. If not removed from the system, these particles can foul or clog heat transfer surfaces, resulting in incomplete pasteurization.
Once the process is complete, the liquid must be cooled to a temperature more suitable for handling. This also generally involves a heat transfer fluid, in this case chilled water, which absorbs the excess heat from the liquid. This loop is also normally a closed loop, but again, scale and corrosion products may be present.
Orival filters provide an excellent solution for filtration of the heating or cooling loop systems in the pasteurization process. Ensuring that the system remains debris free will reduce operating and maintenance costs, resulting in increased profits.