Pump circulation flange 1,3kVt Hmax 20,3m Qmax 300l / min DN50 280mm + mating flange AQUATICA (774,198) These pumps are designed for pumping clean water, may be used for water circulation in the central and zonal heating systems, air conditioning systems and in the hot water systems, Pumping Unit: - Body: cast iron; - The motor shaft: ceramic; - Impeller: technopolymer Motor: - Motor type: asynchronous, low noise; - the stator windings of copper; - motor stator sleeve: Stainless steel AISI 304; - Bearing: Ceramic groove; - Voltage: 220-240V; - Frequency: 50 Hz; - Insulation class: H; - Protection: IP44, Nozzle: - DN pump 50; - DN flange 50, applying conditions: - maximum liquid temperature: +110 ºC; - Maximum ambient temperature: +40 ºC; - Permitted system pressure up to 10 bar; - only clean water without abrasive impurities (sand, clay, lime and