KSB 01028502 is a mechanical seal reference with the designation KSB-MG12/..-G60 Q1Q1EGG. The MG12 configuration uses a rotating elastomer bellows with an extended bellows tail and a G60 stationary seat. The specified material combination includes sintered silicon carbide on both sealing faces (Q1/Q1), with EPDM secondary seals (E). This OEM reference is listed for the Etachrom, Etanorm and Etabloc pump families; the exact pump model and installation dimensions should be verified. The corresponding KE MOTION HYDRO product reference is NM-1.