A separator plate for an electrochemical system may have at least one passage opening for forming a media channel for feeding or discharging media. The system may also have at least one bead arrangement arranged around the at least one passage opening, for the purpose of sealing the passage opening. At least one of the flanks of the bead arrangement may have at least one opening for conducting a medium through the bead flank. The system may also have at least one guide channel that is connected, on an exterior of the bead arrangement, to the openings in the bead flank and is fluidically connected to a bead interior via the opening in the bead flank. The guide channel is designed such that a guide channel width, determined parallel to the flat surface plane of the separator plate, increases at least in some sections in the direction of the bead arrangement.