Abstract: A sealing element (5) for a filter element (2) in a housing body (1) of a filtration system, preferably in a cross-flow filtration system.

Abstract: The invention relates to a crossflow filter membrane comprising an active layer whose size is equal to or greater that 1 mm. Said crossflow filter membrane makes it possible to simultaneously carry out a crossflow filtration along a surface and a deep-bed filtration in the membrane depth. A connecting element for connecting module pads, a method for producing said connecting element and a crossflow filtering module are also disclosed. The connecting element supported by a filter pad surface on the side of unfiltered fluid closes an unfiltered fluid area for preventing a filtrate flowing and is provided with at least one closure element positively connectable to at least one other connecting element.

Abstract: The invention relates to a process for the crossflow micro-filtration of beer. In order to prevent the clogging of the membrane of the filter module by components of the non-clarified beer which are to be filtered out and settle in the form of a covering, the filtration is interrupted at intervals. In a subsequent brief pause the covering on the membrane is chemically and partially dissolved with a caustic solution whereafter the covering is subsequently removed by backwashing of the membrane with water. In order to further improve the filtration, the transmembrane pressure (p) is regulated during the filtration phase according to a substantially periodic time function, and the crossflow velocity (v) of the beer over the membrane is increased substantially continuously.