CENTRIFUGAL PUMP GRUNDFOS NB125-250/269 A-F2-A-BAQE

Normally, the dimensions of a single-stage, end-suction centrifugal pump comply with standard ISO 5199, and the rated capacity conforms to standard EN 733 (10 bar). The dimensions of PN 16 flanges are in accordance with standard EN 1092-2. The pump has an axial suction opening, a radial discharge opening, and a horizontal shaft. The motor, motor bracket, guard, and impeller can be removed from the rear of the pump without disturbing the pump casing or piping. The unbalanced rubber mechanical seal complies with standard DIN EN 12756. The pump is coupled via a short coupling to a fan-cooled asynchronous motor. Fluid: Fluid temperature range: 0 .. 120 °C Technical: Pump speed: 975 rpm Rated flow rate: 202 m³/h Rated head: 9.3 m Actual impeller diameter: 269 mm Rated impeller: 250 mm Shaft seal code: 1: Type 2: Impeller seal face 3: Static face 4: Secondary seal: BAQE Materials: Pump casing: Cast iron Pump casing: EN-GJL-250 Pump casing: ASTM A48-40 B Impeller: Cast iron Impeller: EN-GJL-200 Impeller: ASTM A48-30 B Shaft: Stainless steel Shaft: 1.4301 Shaft: 304 Rubber: EPDM Wear ring material: High-alloy brass (CuZn34Mn3AI2) Installation: Maximum ambient temperature: 55 °C Maximum allowable operating pressure: 16 bar Standard flange: EN 1092-2 Pump suction opening: DN 150 Pump discharge opening: DN 125 Pressure class: PN 16 Electrical: Motor model: SIEMENS IE Efficiency class: IE3 Rated power - P2: 7.5 kW Supply frequency: 50 Hz Rated voltage: 3 x 380-420D/660-725Y V Rated current: 16.0-14.6/9.20-8.40 A Starting current: 630-630 % Power factor (Cos phi): 0.80 Rated speed: 975 rpm Efficiency: IE3 89.1% Motor efficiency at full load: 89.1-89.1 % Motor efficiency at 3/4 load: 90.0-90.0 % Motor efficiency at 1/2 load: 89.8-89.8 % Number of poles: 6 Protection class (IEC 34-5): 55 Dust/Jetting Insulation class (IEC 85): F Lubricant type: Grease Other: Minimum efficiency index, MEI =: 0.70 Net weight: 225 kg Gross weight: 247 kg This product description is an automated translation of the original Finnish description.