NKE 50-250/263 AA2F2AESBAQEKWA [99098372]
NKE 50-250/263 AA2F2AESBAQEKWA [99098372]
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Non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and horizontal shaft. It is of the back pull-out design enabling removal of the motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is fitted with a foot-mounted, fan-cooled, permanent-magnet synchronous motor. Pump and motor are mounted on a common base frame. The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement.
Specs Table
| Controls: | ||
| Frequency converter: | Built-in | |
| 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: | 1450 rpm | |
| Rated flow: | 46.8 m³/h | |
| Pump with motor (Yes/No): | Y | |
| Rated head: | 19.4 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: | ||
| Range of ambient temperature: | -20 .. 50 °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: | 112ME | |
| Rated power - P2: | 4 kW | |
| Mains frequency: | 50 Hz | |
| Rated voltage: | 3 x 380-500 V | |
| Rated current: | 7.70-6.00 A | |
| Cos phi - power factor: | 0.92-0.87 | |
| Rated speed: | 180-2200 rpm | |
| IE Efficiency class: | IE5 | |
| Motor efficiency at full load: | 90.3 % | |
| Number of poles: | 4 | |
| Enclosure class (IEC 34-5): | IP55 | |
| Insulation class (IEC 85): | F | |
| Motor No: | 93137619 | |
| Bearing insulation type N-end: | Steel Bearing | |
| Others: | ||
| Minimum efficiency index, MEI ≥: | 0.70 | |
| Net weight: | 144 kg | |
| Gross weight: | 165 kg | |
| Shipping volume: | 0.44 m³ | |
| Country of origin: | HU | |
| Custom tariff no.: | 84137059 | |
| Language on pump nameplate: | GB | |
