KSB 00103979 is a mechanical seal reference with the designation MG1/..-G9 AVEGG. The MG1 design uses rotating elastomer bellows together with a G9 stationary seat. The specified material combination includes antimony-impregnated carbon graphite for the rotating face (A) and aluminium oxide ceramic for the stationary seat (V), with EPDM secondary seals (E). The shaft diameter and installation dimensions must be confirmed against the pump before selecting a replacement. The corresponding KE MOTION HYDRO product reference is NM-1.
