Grundfos NBE 50-250/233 AAF2AESBQQEQW1 Single-stage close coupled pumps 98978489
Nominal flow rate: 78.77 m³/h | Nominal head: 63 m | Max. operating pressure: 16 bar | Media temperature range: 0 ... 120 °C | Shaft diameter: 32 mm Operating pressure: 16 bar | Media temperature range: -25 ... 120 °C | Shaft diameter: 24 mm
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Grundfos 98978489 Single-stage block pumps NBE 50-250/233 AAF2AESBQQW1
Product number: 98978489
EAN Number: 5712604595107
Normal priming, single-stage centrifugal pump according to ISO 5199 with dimensions and rated power according to EN 733 (10 bar). The pump is equipped with PN 16 flanges. The dimensions comply with EN 1092-2. The pump has an axial suction port and radial discharge port as well as a horizontally arranged shaft. The process design allows the motor, motor lantern, cover and impeller to be dismantled without having to separate the pump casing from the piping. The non-relieved rubber bellows seal complies with DIN EN 12756.
Accessories
No installation set |
Tech. Details
| Product information | ||
| Product information. | type | Single-stage block pumps |
| Product number |
98978489 | |
| Product name |
NBE 50-250/233 AAF2AESBQQEQW1 | |
| EAN number |
5712604595107 | |
| Electrical data |
rated engine power P2 | 22 kW |
| Mains frequency | 50 Hz | |
| Dimensioning voltage | 3 x 380-480 V | |
| rated current | 43.5-35.0 A | |
| Power factor Cos phi | 0.91-0.90 | |
| Nominal speed | 480-3540 rpm | |
| Efficiency | IE3 92.7% | |
| Efficiency of the engine at full load | 92.7 % | |
| Efficiency of the engine at 3/4 load | K.A. | |
| Motor efficiency at half load | K.A. | |
| Motorpole | 2 | |
| Protection class (according to IEC 34-5) | IP55 | |
| Heat class (IEC 85) | F | |
| Integrated motor protection | Yes | |
| Fixing according to IEC 34-7 | IM B35 | |
| Control panel | Standard | |
| Function module | Pump I/O | |
| Installation |
Maximum ambient temperature | K.A. |
| Max. Operating pressure | 16 bar | |
| Pipe connection standard | EN 1092-2 | |
| Size of the suction nozzle | DN 65 | |
| Size of the pressure port | DN 50 | |
| Nominal pressure level | PN 16 | |
| Bearing lubrication | Grease | |
| Support block (Yes/No) | N | |
| Code connection type | F2 | |
| Technical data |
Pump speed on which the pump data is based | 2940 rpm |
| rated current | 78.77 m³/h | |
| Rated head | 63 m | |
| Actual impeller diameter | 233 mm | |
| Nominal impeller diameter | 250 | |
| GLRD arrangement | Simple mechanical seal | |
| Wave diameter | 24 mm | |
| ISO acceptance class | ISO9906:2012 3B | |
| Code execution | A | |
| Bearing construction | Standard version | |
| Materials | Pump housing | Grey cast iron |
| Pump casing | EN-GJL-250 | |
| Wheel material | Grey cast iron | |
| running wheel | EN-GJL-200 | |
| Wheel material according to ASTM | ASTM class 30 | |
| Internal pump house coating | CED coating | |
| code material | A | |
| Stainless steel | Stainless steel | |
| Support medium. | Media temperature range | -25 ... 120 °C |
| Medium temperature during operation | 20 °C | |
| Density | 998.2 kg/m³ | |
| Type of control. | Frequency inverter | integrated |
| Pressure sensor | no | |
| Sensor type | K.A. | |
| Others | Minimum Efficiency Index MEI ≥ | 0.67 |
| Net weight | 217 kg | |
| Gross weight | 242 kg | |
| Shipping vol. | 0.707 m³ | |
| Country of origin | HU | |
| Tariff No. | 84137051 | |
Features:
Single-stage close-coupled pumps according to EN 733 with MGE motor |
The pump is directly connected to a fan-cooled asynchronous motor. For speed control, the motor has a frequency converter and PI controller housed in the motor's terminal box. The electronic speed control enables continuous adjustment of the motor speed and thus the pump performance to the current demand. . |
Worth knowing about Grundfos
Grundfos is one of the world's leading suppliers of high-efficiency pumps and the world market leader for circulators in the in heating technology. In addition to stainless steel pumps for industrial applications applications, Grundfos offers innovative pumps for building services and water management. As an authorised service partner, you will find in our profluid webshop you will find a wide selection of the extensive Grundfos range. Through excellent service, advice by telephone and fast delivery we offer a suitable (pump) solution for almost every application. solution. You too can benefit from our large selection at top prices!