CVM A / AM / B / BM

Summary

Product identification

EBARA CVM series multistage centrifugal pumps are designed for 50 Hz operation.

Operating limits

• Liquid Temperature: min. +5 °C, max. +40 °C
• Maximum Working Pressure: 1.1 MPa
• Minimum Flow Rate: Pumps should not be used at a flow rate below 10% of the best efficiency point to avoid the risk of overheating.

Feed water

• Type of Liquid: Clean water
• Temperature: min. +5 °C, max. +40 °C
• Kinematic Viscosity (for performance curves): ν = 1 mm²/s (1 cSt) at 20 °C

Electrical

• Motor Type: Electric asynchronous - TEFC
• Number of Poles: 2
• Rotation Speed:
  • Motor: ≈ 2850 min⁻¹
  • Performance Curves: ≈ 2800 min⁻¹
• Insulation Class: F
• Protection Degree (CEI EN 60034-5): IP 44
• Frequency: 50 Hz
• Voltage:
  • Single Phase: 230 ±10% V
  • Three Phase: 230/400 ±10% V
• Power Rating:
  • Single Phase: 0.3 ÷ 1.7 kW (0.4 ÷ 2.3 HP)
  • Three Phase: 0.3 ÷ 1.85 kW (0.4 ÷ 2.5 HP)
• Capacitor: Built in (Single Phase models), Not applicable (Three Phase models)
• Overload Protection: Built in (Single Phase models), Provided by the user (Three Phase models)
• Casing Material: Aluminium
• Cable Entry Dimensions: PG 11 – PG 13.5 - M16x1.5 – M20x1.5
• Efficiency Level (Reg. 640/2009):
  • From 0.3 kW up to 0.6 kW: Not specified
  • IE2: From 0.75 kW up to 1.85 kW
  • IE3: From 0.75 kW up to 1.85 kW
• Detailed Motor Data: For specific efficiency percentages, full load current, locked rotor current, and capacitor values per model, see the official PDF for exact tabulated values.

Mechanical / hydraulic

• Pump Type: Multistage Centrifugal
• Construction:
  • Impeller: Closed centrifugal, PPE+PS Glass fibre reinforced (diameter = 102 mm for CVM A/B models listed)
  • Shaft Seal Type: Mechanical seal
  • Bearing: Sealed ball bearing
• Pipe Connection:
  • Suction: G 1”¼ UNI ISO 228
  • Discharge: G 1”¼ UNI ISO 228
• Materials:
  • Casing (Suction/Delivery): Cast iron EN-GJL-200-EN 1561
  • External Pump Casing: AISI 304 (EN 1.4301)
  • Shaft: AISI 416 (EN 1.4005)
  • Shaft Seal: Ceramic/Carbon/NBR
  • Stages: PPE+PS Glass fibre reinforced /PTFE
  • Diffuser: PPE+PS Glass fibre reinforced
  • Bracket: Cast iron
  • Motor Casing: Aluminium
  • Fan: PA
  • Fan Cover: Galvanized Fe P04
  • Terminal Box Cover: Aluminium (for three phase models)
  • Priming Plug: OT 58 UNI 5705
  • Drain Plug: OT 58 UNI 5705
  • Counter Flange: Cast iron EN-GJL-200-EN 1561
  • Counter Flange Gasket: NBR
  • Tie Rod: Galvanized Fe P04
  • Capacitor Box / Cover: ABS class V-0 (for single phase models)
• Mechanical Seal Components:
  • Up to 0.6 kW models: Rotary seal ring (Carbon graphite), Stationary seal ring (Ceramic), Gasket (NBR), Bellows (NBR), Self driving spring (AISI 304), Frame (AISI 304), Retainer ring (AISI 304).
  • 0.75 kW and above models: Rotary seal ring (Ceramic), Stationary seal ring (Carbon graphite), O Ring (NBR), Self driving spring (AISI 316), Frame (AISI 304).
• Applicable Standard of Test: ISO 9906:2012 - Grade 3B
• Performance Range and Selection Chart: For detailed capacity (Q) and total manometric head (H) values for each pump model, see the official PDF for exact tabulated values.
• Dimensions and Weight: For specific dimensions and weights per pump model, see the official PDF for exact tabulated values.
• Bearings: For specific ball bearing types (e.g., 6304 2RSH C3, 6203-ZZ C3) for pump side and fan side, per pump type and phase, see the official PDF for exact tabulated values.

Noise Data

• Sound Pressure Level (LpA): Ranges from 53 dB(A) to 67 dB(A) depending on the model.
• Tolerance: ± 2.5 dB.
• Measurement: Mean value of several measures at 1m distance around the pump.

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

Official datasheet (PDF)

Lenntech datasheet mirror