Stainless steel drainage pump with double shaft seal with oil chamber suitable for continuous operation. Models GXR for clean water containing solids up to 10 mm grain size and models GXV with vortex impeller for clean or slightly dirty water containing solids up to 25 mm grain size. Single and three-phase executions available as well as with and without automatic level control. For flow rates up to 30 m³/h and maximum head of up to 20m water column. Our GX ZERO models enables flat suction down to 1 mm water level, for pure water or also with solid particles up to 3 mm grain size.