NK 50-250/263 AA2F2AESBAQEKW3 [97831675]
NK 50-250/263 AA2F2AESBAQEKW3 [97831675]
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Bomba centrífuga de voluta, no autocebante y de una etapa, diseñada de acuerdo con la norma ISO 5199, con dimensiones y rendimiento nominal de acuerdo con la norma EN 733. Las bridas son de PN 16 y sus dimensiones satisfacen los requisitos establecidos por la norma EN 1092-2. La bomba posee un puerto de aspiración axial, un puerto de descarga radial y un eje horizontal. Su diseño incluye un sistema de extracción trasera que permite desmontar el acoplamiento, el soporte de los cojinetes y el impulsor sin que esto afecte al motor, la carcasa de la bomba o las tuberías. El cierre de fuelle de caucho no equilibrado satisface los requisitos establecidos por la norma DIN EN 12756. La bomba está equipada con un motor asíncrono refrigerado por ventilador y montado sobre soportes. La bomba y el motor se encuentran montados en una bancada común.
Specs Table
Controls: | |
Frequency converter: | None |
Pressure sensor: | N |
Liquid: | |
Pumped liquid: | Water |
Liquid temperature range: | 0 .. 120 °C |
Selected liquid temperature: | 20 °C |
Density: | 998.2 kg/m³ |
Technical: | |
Pump speed on which pump data are based: | 1460 rpm |
Rated flow: | 47.12 m³/h |
Pump with motor (Yes/No): | Y |
Rated head: | 19.67 m |
Actual impeller diameter: | 263 mm |
Nominal impeller diameter: | 250 |
Primary shaft seal: | BAQE |
Code for shaft seal: | BAQE |
Mechanical seal type: | Single |
Curve tolerance: | ISO9906:2012 3B2 |
Bearing design: | Standard |
Materials: | |
Pump housing: | Cast iron |
EN-GJL-250 | |
ASTM class 35 | |
Wear ring: | Brass |
Impeller: | Cast iron |
EN-GJL-200 | |
ASTM class 30 | |
Internal pump house coating: | CED |
Shaft: | Stainless steel |
EN 1.4301 | |
AISI 304 | |
Installation: | |
Maximum ambient temperature: | 55 °C |
Maximum operating pressure: | 16 bar |
Pipe connection standard: | EN 1092-2 |
Type of inlet connection: | DIN |
Type of outlet connection: | DIN |
Size of inlet connection: | DN 65 |
Size of outlet connection: | DN 50 |
Pressure rating for connection: | PN 16 |
Coupling type: | Flexible w/spacer |
Base frame design: | EN/ISO |
Code for base frame: | 5 |
Grouting (Yes/No): | N |
Electrical data: | |
Motor type: | INNOMOTICS_SIEMENS |
Rated power - P2: | 4 kW |
Mains frequency: | 50 Hz |
Rated voltage: | 3 x 380-420D/660-725Y V |
Rated current: | 7.9/4.6 A |
Starting current: | 710 % |
Cos phi - power factor: | 0.82 |
Rated speed: | 1460 rpm |
IE efficiency: | IE3 88,6% |
IE Efficiency class: | IE3 |
Motor efficiency at full load: | 88.6 % |
Motor efficiency at 3/4 load: | 89.2 % |
Motor efficiency at 1/2 load: | 88.6 % |
Number of poles: | 4 |
Enclosure class (IEC 34-5): | IP55 |
Insulation class (IEC 85): | F |
Motor No: | 98957789 |
Bearing insulation type N-end: | N |
Others: | |
Minimum efficiency index, MEI ≥: | 0.70 |
Net weight: | 162 kg |
Gross weight: | 183 kg |
Shipping volume: | 0.44 m³ |
Country of origin: | HU |
Custom tariff no.: | 84137059 |
Language on pump nameplate: | GB |




