Grundfos - NB50-125/113 - Water pump

Medium to be pumped: Water Liquid temperature range: -25 .. 120 °C Medium operating temperature: 20 °C Density: 998.2 kg/m³ Technical: Speed on which the pump data is based: 1400 rpm Rated flow rate: 28.77 m³/h Nominal head: 2,797 m Actual impeller diameter: 113 mm Nominal Impeller Diameter: 125 Shaft seal arrangement: Single Shaft seal code: BQQE Curve tolerance: ISO9906:2012 3B2 Lower Design: Standard Materials: Pump housing: Cast iron Pump housing: EN-GJL-250 Pump housing: ASTM class 35 Wear Ring: Brass Impeller: Cast Iron EN-GJL-200 ASTM class 30 Shaft: Stainless steel EN 1.4301 AISI 304 Internal coating pump housing: CED Installation: Maximum ambient temperature: 40 °C Maximum operating pressure: 16 bar Pipe connection standard: EN 1092-2 Size of the suction connection: DN 65 Size of the press connection: DN 50 Pressure stage for pipe connection: PN 16 Bearing Lubrication: Grease Pump housing with feet: Yes Filling block: N Electrical data: Engine type: 71B IE efficiency class: IE2 Rated power – P2: 0.37 kW Mains frequency: 50 Hz Rated voltage: 3 x 220-240D/380-415Y V Rated current: 1.80-1.83/1.04-1.06 A Starting current: 390-430 % Cos phi - power factor: 0.78-0.69 Rated speed: 1390-1410 rpm Efficiency: IE2 72.8% - IE2 73.1% Motor efficiency at rated load: 72.8-73.1 % Engine efficiency at 3/4 power: 75.6 % Engine efficiency at half power: 73.8 % Pool number: 4 Enclosure class (IEC 34-5): 55 Dust/Jetting Insulation class (IEC 85): F Engine No.: 99957665 Remainder: Minimum Efficiency Index, MEI ≥: 0.64 Net weight: 35 kg Gross weight: 45 kg Transport volume: 0.134 m³