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Flanged circulation pump 1.3kW Hmax 20.3m Qmax 300L/min DN50 280mm + mating flange AQUATICA (774198). Pumps of this series are designed for pumping clean water. They can be used for water circulation in central and zonal heating systems, air conditioning systems, and hot water supply systems. Pump part: Housing: cast iron; Motor shaft: ceramic; Impeller: technopolymer. Electric motor: Motor type: asynchronous, silent; Stator windings: copper; Motor stator sleeve: stainless steel AISI 304; Bearing: ceramic radial; Voltage: 220-240V; Frequency: 50Hz; Insulation class: H; Protection class: IP44. Connection: Pump DN: 50; Flange DN: 50. Operating conditions: Maximum pumped liquid temperature: +110°C; Maximum ambient temperature: +40°C; Permissible system pressure: up to 10 bar; Only for clean water without abrasive impurities (sand, clay, lime, etc.); Water pH: 6.5 - 8.5; Total water mineralization: no more than 1500 g/m³; Warranty period: 18 months. Package contents: Mating flange - 2 pcs; Gasket - 2 pcs; Bolt, wa