MDOZRS series GMR, Motor-driven double-diaphragm pump. Head material: 1.4571, Seal material: Hypalon. Electrical drive: Variable speed transmission with three-phase motor 2.2 kW, IP 55, ISO-class F, 380-420V/220-240V, 50 cy. Capacity adjustment: Speed variation in the range of 1:6 by manual adjustment of the control gear