KDOZS Series ZKN, Motor-driven piston metering pump - Duplex version. Head material: 1.4571, Seal material: AF for KN 10…350 & Hypalon for KN 500, Packing material: PTFE silk-cord packing up to 40 bar (Special packings and pistons for pressures > 40 bar). Electrical drive: Three-phase motor 0.55…1.1 kW, IP 55, ISO-class F, 380-420V/220-240V, 50 cy. Operating pressure: Up to 400 bar depending on the pump size and the packing material (values in brackets are maximum pressure)