DECREASED ADHESION PRESSURE VESSEL FOR BAG-TYPE FILTRATION SYSTEMS

摘要

A pressure vessel adapted to hold a compatible filter cartridge encased in a polymeric film is provided. The pressure vessel comprises a pressure vessel outer wall and a pressure vessel inner wall. The pressure vessel inner wall comprises an inner circumference and one or more depressions extending from the inner circumference toward the pressure vessel outer wall, the one or more depressions creating one or more fluid passages between the polymeric film and the pressure vessel when the filter cartridge is installed in the pressure vessel. The one or more depressions comprise a first depression wall joining the pressure vessel inner wall at the inner circumference such that an angle a facing away from the depression between the first depression wall and a tangent of the inner circumference is greater than or equal to ninety degrees.