Grundfos NBE 50-250/233 A-F-A-GQQE
Product ID: 96539147
Request Price and Availability
Grundfos NBE 50-250/233 A-F-A-GQQE
Non-self priming, single-stage centrifugal pump according to DIN.
The pump is for the pumping of thin, clean or slightly contaminated liquids without abrasive or long-fibred solids.
The impeller is hydraulically as well as dynamically balanced.
The pump has the following characteristics:
|
The pump is fitted with an IEC-flanged three-phase MGE motor with frequency converter and PI-controller integrated in the motor terminal box. No additional motor protection is required, as both motor and electronics are protected by integrated overload and temperature protection.
An external sensor can be connected if controlled pump operation based on for example flow, differential pressure or temperature is required.
A control panel enables setting of required setpoint as well as setting of pump to MIN or MAX operation or to STOP. The control panel has indicator lights for "Operation" and "Fault".
Communication with the pump is possible by means of Grundfos R100 Remote Control enabling further settings as well as reading out of a number of parameters such as "Actual value", "Speed", "Power input" and total "Power consumption".
The terminal box holds terminals for the connection of:
|
| Specification | Value | |
|---|---|---|
| Liquid: | ||
| Pumped liquid: | Water | |
| Liquid temperature range: | -25 .. 90 °C | |
| Liquid temperature during operation: | 20 °C | |
| Density: | 998.2 kg/m³ | |
| Technical: | ||
| Speed for pump data: | 2910 rpm | |
| Rated flow: | 78 m³/h | |
| Rated head: | 61.7 m | |
| Actual impeller diameter: | 233 mm | |
| Impeller nom: | 250 mm | |
| Primary shaft seal: | GQQE | |
| Materials: | ||
| Pump housing: | Cast iron | |
| EN-JL1040 | ||
| Impeller: | Cast iron | |
| EN-JL1030 | ||
| ASTM A48-30 B | ||
| Installation: | ||
| Maximum ambient temperature: | 40 °C | |
| Maximum operating pressure: | 16 bar | |
| Flange standard: | DIN | |
| Pump inlet: | DN 65 | |
| Pump outlet: | DN 50 | |
| Pressure rating: | PN 16 | |
| Electrical data: | ||
| Motor type: | 180M | |
| Rated power - P2: | 22 kW | |
| Mains frequency: | 50 Hz | |
| Rated voltage: | 3 x 380-415 V | |
| Rated current: | 42 A | |
| Cos phi - power factor: | 0,94 | |
| Rated speed: | 360-2910 rpm | |
| Number of poles: | 2 | |
| Enclosure class (IEC 34-5): | IP54 | |
| Insulation class (IEC 85): | F | |
| Others: | ||
| Net weight: | 270 kg | |
| Gross weight: | 291 kg | |
| Shipping volume: | 0.96 m³ | |