Method for placing a liquid treatment cartridge, a liquid treatment system and a liquid treatment cartridge in a cartridge seat

摘要

The liquid treatment cartridge includes a housing into which at least a portion can be inserted into the cartridge sheet through the mouth of a cartridge sheet. The housing has an axis (23) corresponding to the intended insertion direction of at least a portion of the housing to the cartridge seat. The axial leading section of the housing extends sideways 35 which comprise the individual members 37a to 37d of each of at least one pair of guide grooves 37 and a pair of different Has at least one set of protrusions (16) that are receivable in the guide groove during insertion of the liquid treatment cartridge into the cartridge seat with side walls comprising the member (16). The housing includes axially circumferential sealing rims 29 at a distance from at least a pair of members 37a to 37d provided with side walls 35. The sealing rim 29 has a section 39 projecting outwardly from the remainder 35 of the housing and an additional section 40 projecting predominantly axially from the axial leading side of the section 39 projecting outwardly, . The surface facing the outer chamber of at least the further section (40) of the sealing rim (29) is a single surface. The surface facing the outer chamber is inclined with respect to the axis 23 so that the additional section 40 extends into the outer chamber towards its edge distal to the protruding section 39.