The Pharma-X heat exchanger is ideal for point-of-use cooling of WFI, and it can be used for other duties where the purpose is to quickly heat or cool purified water or WFI. The Pharma-X heat exchanger consists of three tubes placed within each other with the product in the center tube and the heating or cooling media in the inner and outer tube. A spiral is used to aid uniform spacing of the tubes, eliminating laminar flow of the fluid and increasing the efficiency of the heat exchanger. The turbulent flow also minimizes the risk of bio-film build-up. The three tubes and spirals are bent 180 degrees in one unit to form a "U" bend. This provides a compact design with optimum space utilization. Thermal expansion is absorbed by the bend, which makes the Pharma-X very suitable for extreme temperature differences in heating and cooling applications, as well as for steam sterilization.
