Nocchi CB

Summary

Product identification

The Nocchi CB series consists of twin impeller centrifugal pumps designed for superior hydraulic performance, featuring two opposed impellers with balanced axial thrust.

Applications:

• Pressure booster systems
• Small irrigation systems
• Handling of non-aggressive liquids
• Washing systems
• Ideal for civil and industrial applications, autoclave units.

Operating limits

• Maximum liquid temperature:
  • 40°C for models 0.55 to 0.75 kW
  • 90°C for models 1.1 to 4.0 kW
• Maximum recommended suction height: 5 m with foot valve
• Maximum operating pressure:
  • 6 bar for models 0.55 - 0.75 kW
  • 10 bar for models 1.1 - 4 kW

Feed water

• Type of liquid: Clear or slightly cloudy, non-abrasive water.
• Suitable for handling non-aggressive liquids.

Electrical

• Motor type: Closed, ventilated from exterior
• Protection rating: IP 44
• Insulation class: F
• Single phase power supply: Permanently activated capacitor and thermal cutout protection incorporated in the motor winding.
• Three phase power supply: Requires external protection to be fitted by the user.

Mechanical / hydraulic

Materials of Construction:

• Pump body: Cast iron EN GJL 200 (ex G20)
• Motor bracket:
  • Aluminum on models: 0.55 - 1.00 kW
  • Cast iron on all other models in the range
• Impeller:
  • Technopolymer on models: 0.55 - 0.75 kW
  • Brass on all other models in the range
• Intermediate disk: Cast iron
• Motor shaft:
  • AISI 303 on models: 1.1 - 1.5 - 2.2 kW
  • AISI 304 on models: 3.0 - 4.0 kW
  • AISI 416 on models: 0.55 - 0.75 kW
• Mechanical gasket: Graphite
• Counterface: Ceramic
• Seal holder disk:
  • AISI 304 on models: 0.55 - 0.75 kW
  • Cast iron on all other models in the range
• Seals: NBR

Overall Dimensions and Weights: See the official PDF for exact tabulated values for models CB 80/38 through CB 210/76, including dimensions (A, B, C, D, E, F, H1, H2) in mm, connection sizes (DNA, DNM), and Weight (kg).

Performance Data

The document includes hydraulic performance curves and a detailed performance table.

• Hydraulic Performance Graph: Illustrates Head (H[m]) versus Flow Rate (Q[m³/h], Q[l/min]). See the official PDF for the full graph.
• Performance Table: Provides specific data points for various models (CB 80/38 M/T to CB 210/76 T) including:
  • Motor output (P2, P1) in HP and kW
  • Voltage (VOLT)
  • Current (In) in A
  • Capacitance (μF) for single-phase models
  • Head (m.c.a. / m.w.c.) at various flow rates (L/min, m³/h). See the official PDF for exact tabulated values across the full operating range for each model.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror