CMA / CMB / CMC / CMD

Summary

Product Identification

Ebara CMA-B-C-D series centrifugal pumps, 50 Hz, Rev. P.

Operating Limits

• Liquid Handled: Clean water
• Liquid Temperature:
  • Min: +5 °C
  • Max: +40 °C (CMA up to 1.00 models)
  • Max: +90 °C (all other models)
• Maximum Working Pressure:
  • 0.6 MPa (CMA up to 1.00; CMB up to 3.00; CMC; CMD models)
  • 0.8 MPa (all other models)
• Minimum Flow Rate: Pumps should not be used at a flow rate below 10% of the best efficiency point to avoid overheating.
• Rotation Speed:
  • ≈ 2800 min⁻¹ (CMA, CMB, CMC series)
  • ≈ 2850 min⁻¹ (CMD series)
• Test Standard: ISO 9906:2012 – Grade 3B

Feed Water

• Type of Liquid: Clean water
• Kinematic Viscosity (for performance curves): ν = 1 mm²/s (1 cSt) at 20 °C

Mechanical / Hydraulic

• Pump Type: Centrifugal
• Impeller: Closed centrifugal
• Shaft Seal Type: Mechanical seal
• Bearing: Sealed ball bearing
• Pipe Connection (UNI ISO 228):
  • Suction:
    • G 1” (CMA up to 1.00)
    • G 1”¼ (CMA 1.50 and above)
    • G 2” (CMB - CMC)
    • G 2”½ (CMD)
  • Discharge:
    • G 1” (CMA)
    • G 1”¼ (CMB)
    • G 2” (CMC)
    • G 2”½ (CMD)
• Materials:
  • Casing: Cast iron
  • Impeller: PPE+PS glass fibre reinforced, Brass, Cast iron (material varies by application, see PDF pages 301-303)
  • Shaft Seal: Ceramic/Carbon/NBR
  • Shaft: AISI 416 (integral), AISI 303 (wet extension), AISI 304 (wet extension) (material varies by application, see PDF pages 301-303)
  • Bracket: Cast iron, Aluminium (material varies by application, see PDF pages 301-303)
  • Casing Cover: AISI 304 (material varies by application, see PDF pages 301-303)
  • Motor Casing: Aluminium
  • Base Material / Motor Support: Aluminium / Cast iron / Plastic foot
• Mechanical Seal Details:
  • Up to 1.00 models: Rotary seal ring (Carbon graphite), Stationary seal ring (Ceramic), Gasket (NBR), Bellows (NBR), Ring (AISI 304), Self driving spring (AISI 304), Frame (AISI 304), Retainer ring (AISI 304). Dimensions are tabulated in the PDF.
  • 1.50 and above models: Rotary seal ring (Ceramic), Stationary seal ring (Carbon graphite), O Ring (NBR), Self driving spring (AISI 316), Frame (AISI 304). Dimensions are tabulated in the PDF.
• Bearings: Specific ball bearing types (e.g., 6201 2RSH, 6201-ZZ C3) are tabulated for pump and fan sides, for both single and three-phase models, with specific notes for IE3 motors. See the official PDF for exact tabulated values.
• Impeller Diameters:
  • CMA Series: 130 mm (CMA 0.50) to 201 mm (CMA 3.00)
  • CMB Series: 112 mm (CMB 0.75) to 204 mm (CMB 5.50)
  • CMC Series: 100 mm (CMC 0.75) to 112 mm (CMC 1.00)
  • CMD Series: 105 mm (CMD 1.50) to 120 mm (CMD 3.00)
• Dimensions and Weight: Detailed dimensions (mm) and weights (kgf) are provided in tables for each pump model, including variations for single-phase, three-phase, and IE3 motors. See the official PDF for exact tabulated values.
• Packing Dimensions and Weight: Packing dimensions (mm) and weights (kgf) are provided for each pump model. See the official PDF for exact tabulated values.

Electrical

• Motor Type: Electric - TEFC
• No. Of Poles: 2
• Frequency: 50 Hz
• Insulation Class: F
• Protection Degree (CEI EN 60034-5): IP 44
• Power Rating:
  • Single Phase: 0.37 ÷ 1.5 kW (0.5 ÷ 2 HP)
  • Three Phase: 0.37 ÷ 4 kW (0.5 ÷ 5.5 HP)
• Voltage:
  • Single Phase: 230 ±10% V
  • Three Phase: 230/400 ±10% V
• Capacitor:
  • Single Phase: Built in
  • Three Phase: Not applicable
• Overload Protection:
  • Single Phase: Built in
  • Three Phase: Provided by the user
• Efficiency Level (Reg. 640/2009):
  • From 0.37 kW up to 0.6 kW: Not specified
  • From 0.75 kW up to 4.0 kW: IE2 (Single Phase), IE3 (Three Phase)
• Cable Entry Dimensions: PG11, PG13.5, PG16, M16x1.5, M20x1.5 (specific to model, see PDF page 401)
• Motor Data: Detailed tables for efficiency (η %), full load current (A), locked rotor current (A), and capacitor values (µF, V) are provided for each pump model, including variations for single-phase, three-phase, and IE2/IE3 motors. See the official PDF for exact tabulated values.

Noise Data

• Sound Pressure Level (LpA):
  • <70 dB(A) for most models
  • 72 dB(A) for CMD 4.00T
• Tolerance: ± 2.5 dB
• Measurement: Mean value of several measures at 1m distance around the pump.

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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. For contractual data and complete specifications, the official OEM PDF revision used on the project must be consulted.

Official datasheet (PDF)

Lenntech datasheet mirror