Filter device for accommodating replaceable filter cartridge, has filter head fastened to holder, and check valve arranged in area of water intake such that check valve is opened during inserting filter cartridge

摘要

The device has a guide pin with a holder (100) including a guide path (150), a filter head (200) with a water intake (210), a water drain (220) and another guide path. The filter head is fastened to the holder, and the guide paths are combined in such a manner that the guide pin of a filter cartridge (300) is guided along the guide paths for fastening the filter cartridge. A check valve is arranged in an area of the water intake in such a manner that the check valve is opened during inserting the filter cartridge. An independent claim is also included for a cascade connection of two filter devices, comprising filter heads.