| abstract |
The invention relates to a filter assembly for the vacuum filtration of aqueous media, in particular for the clarification and sterile filtration of aqueous media, preferably in litres, in laboratories and technical institutions. The inventive filter assembly (1) is equipped with a cartridge-type filter element (2) which is located in an encompassing, cylindrical housing (3) and separates off an inlet-side housing chamber (4). Said housing (3) is provided with an inlet (5) and an outlet (6). The filter element (2) consists of at least one tubular, pleated, hydrophilic, microporous membrane filter (8) which is fluid-tightly bordered at the front ends of a lower (9) and an upper end cap (10). The lower and upper end caps both have central openings (12, 13). The central opening (12) of the lower end cap (9) is connected to the outlet (6) of the housing (3), said outlet communicating with a filtrate container, and the central opening (13) of the upper end cap (10) is sealed off by a hydrophobic membrane (16). |