Datasheet summary
Nocchi NRB
PDF datasheet mirror for Nocchi NRB (Nocchi Pumps). Verify with OEM before design.
Summary
Product identification
The NOCCHI NRB series consists of standardized close-coupled centrifugal pumps, available in 2-pole and 4-pole configurations. These single-stage, horizontal-axis pumps are designed in compliance with EN733/DIN24255 standards for component interchangeability. The impeller is dynamically and hydraulically balanced, and the shaft is oversized for stability, supported by grease-lubricated ball bearings.
Applications:
- Aqueducts
- Irrigation
- Water distribution
- Industrial applications
Operating limits
- Pumped liquid temperature: -10°C / +130°C
- Max. pressure on intake: 4 bar
- Maximum operating pressure: 10 bar
Product water
- Flow rate: up to 330 m³/h
- Head: up to 95 m
Electrical
The motor features:
- Closed, ventilated from exterior design
- Protection rating: IP 55
- Construction design: B3
- Insulation class: F
- Three phase power supply
- Rotation speed: 2850 rpm (for 2-pole models)
- Continuous duty
Mechanical / hydraulic
Materials of Construction:
- Pump body: Cast iron EN GJL 200 (ex G20)
- Motor bracket: Cast iron EN GJL 200 (ex G20) (Bronze on request)
- Body cover: Cast iron EN GJL 200 (ex G20)
- Pump support: Cast iron EN GJL 200 (ex G20)
- Shaft: Stainless steel AISI 420
- Mechanical gasket: Ceramic/Graphite/EPDM (Carbide/Carbide/EPDM on request)
Performance and Dimensions: Detailed performance tables (flow rate, head, power, current) and overall dimensions (mm) and weights (kg) are provided for specific models within the NRB2 (2-pole) and NRB4 (4-pole) series, including NRB2 32, NRB2 40, NRB2 50, NRB2 65, NRB2 80, NRB2 100, and NRB4 32, NRB4 40, NRB4 50, NRB4 65, NRB4 80, NRB4 100. These tables also specify nominal discharge (DNm) and suction (DNa) diameters. See the official PDF for exact tabulated values.
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF. Contractual data must always match the specific OEM PDF revision used for the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.