Grundfos NBE
SubCategory: CentrifugalPumps
Manufacturer: Grundfos
Industry:
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Key specifications
- Flows up to 1215 m³/h
- Pressure up to 16 bar
Key product features
- Integrated variable-speed motor → Matches pump output to changing hydraulic demand.
- EN 733 hydraulic platform → Supports standardized dimensional selection and system planning.
- Close-coupled end-suction design → Reduces footprint and alignment work.
- Single-stage axial-inlet, radial-outlet layout → Provides a defined end-suction hydraulic arrangement.
- Published flow up to 1215 m³/h → Covers high-capacity variable-demand circulation and transfer duties.
- Published pressure up to 16 bar → Supports demanding controlled systems within the verified range.
- Published head up to 190 m → Provides a broad verified head range for NBE applications.
- Liquid-temperature range from -25 to 120 °C → Supports a wide verified temperature envelope.
- Demand-based speed control → Can reduce throttling losses compared with fixed-speed operation.
- NB-based service platform → Provides a familiar basis for maintenance and spare-parts planning.
Grundfos NBE is relevant where an end-suction pump must adapt to variable demand rather than operate continuously at one fixed speed. Typical uses include HVAC, cooling, industrial circulation, process water, irrigation and pressure-controlled transfer. Matching pump speed to the actual requirement can improve process control and reduce avoidable throttling losses in systems with changing load.
NBE combines the NB close-coupled end-suction pump layout with an integrated variable-speed motor and control functions. The hydraulic platform follows EN 733 and uses the single-stage axial-inlet, radial-outlet arrangement of the NB family. Electronic speed control allows the pump to respond to pressure or flow demand according to the selected control setup instead of relying only on fixed-speed operation.
AxFlow publishes NBE performance up to 1215 m³/h, differential pressure up to 16 bar, head up to 190 m and liquid temperatures from -25 to 120 °C. These are series-level values and the allowable operating range depends on size, materials, motor and control configuration. The actual duty point, system curve and liquid properties must be verified before selection.
Integrated speed control can reduce energy wasted through throttling and excessive pump output at part load. The close-coupled NB platform also reduces alignment and footprint requirements compared with long-coupled arrangements. Correct control tuning and hydraulic selection help avoid hunting, off-design operation and unnecessary wear, supporting predictable maintenance and lifecycle cost.
