Point of use
The system ensures WFI or PW dosing at a specific temperature. It is required to meet the stringent quality and hygiene criteria of the pharmaceutical industry.
Most often this is between 25°C and 45°C. If there is more than one point of use with the same temperature, an additional cycle is arranged in the system, where a P-line heat exchanger is installed to cool the water to its application temperature.
The second solution is to use a heat exchanger upstream the point of use (POU). The P-line exchanger used here cools down the WFI to the required level.