NBG 50-32-125.1/129 AF2BBAQE
Non-self-priming, single-stage, centrifugal volute pump designed according to ISO 5199 with dimensions and rated performance according to ISO 2858 (16 bar). Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, radial discharge port, horizontal shaft and a back pull-out design enabling removal of the motor, motor stool, cover and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is close-coupled to a fan-cooled asynchronous motor.
| 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: | 3505 rpm | |
| Rated flow: | 25.34 m³/h | |
| Rated head: | 26.68 m | |
| Actual impeller diameter: | 129 mm | |
| Nominal impeller diameter: | 125.1 | |
| Shaft seal arrangement: | Single | |
| Code for shaft seal: | BAQE | |
| Curve tolerance: | ISO9906:2012 3B2 | |
| Bearing design: | Standard | |
| Materials: | ||
| Pump housing: | Cast iron | |
| EN-GJL-250 | ||
| ASTM class 35 | ||
| Wear ring: | Brass | |
| Impeller: | Bronze | |
| CuSn10-C | ||
| 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 | |
| Size of inlet connection: | DN 50 | |
| Size of outlet connection: | DN 32 | |
| Pipe connection standard: | EN 1092-2 | |
| Pressure rating for connection: | PN 16 | |
| Pump housing with feet: | Yes | |
| Support block: | N | |
| Electrical data: | ||
| Motor type: | SIEMENS | |
| IE Efficiency class: | NEMA Energy / IE2 60Hz / NRC | |
| Rated power - P2: | 3 kW | |
| Mains frequency: | 60 Hz | |
| Rated voltage 2.nd value: | 3 x 220-240D/380-420Y V [ x 255-277D/440-480Y V] | |
| Rated current: | 10,0-9,0/5,80-5,20 A [10,0-9,00/5,80-5,20 A] | |
| Starting current: | 740-740 % [850-850 %] | |
| Cos phi - power factor: | 0.90 | |
| Rated speed: | 3505 rpm [3520 rpm] | |
| Efficiency 2.nd value: | IE2 87,5% [IE2 88,5%] | |
| Motor efficiency at full load 2.nd value: | 87.5-87.5 % [88.5-88.5 %] | |
| Motor efficiency at 3/4 load 2.nd value: | 88.6-88.6 % [89.2-89.2 %] | |
| Motor efficiency at 1/2 load 2.nd value: | 88.6-88.6 % [88.7-88.7 %] | |
| Number of poles: | 2 | |
| Enclosure class (IEC 34-5): | IP55 | |
| Insulation class (IEC 85): | F | |
| Motor No: | 83U05210 | |
| Others: | ||
| Minimum efficiency index, MEI ≥: | 0.70 | |
| Net weight: | 52 kg | |
| Gross weight: | 62 kg | |
| Shipping volume: | 0.178 m³ |