CME-15

Summary

Product Identification

The Grundfos CME 15 is a horizontal, multistage centrifugal pump designed for 50/60 Hz operation. It is part of the Grundfos E-pump family, built upon the CM pump range but featuring a Grundfos MGE motor with an integrated frequency converter.

General Description

CME pumps offer continuously variable control of motor speed, allowing the pump to operate at any duty point to adjust performance to specific requirements. They are suitable for applications requiring:

• Controlled operation where consumption fluctuates.
• Constant pressure.
• Communication with the pump.

Benefits of frequency-controlled speed adaptation include energy savings, increased comfort, and enhanced control and monitoring of the application and pump performance. A pressure sensor can be connected to the built-in frequency converter.

Performance Characteristics

The 100% speed of CME pumps is approximately 3400 min⁻¹, irrespective of the input frequency.

• CME 15 Series Performance (approximate ranges from graphs):
  • Flow rate (Q): Up to approximately 24 m³/h (7 l/s)
  • Head (H): Up to approximately 75 m
  • Pressure (p): Up to approximately 700 kPa

See the official PDF for exact tabulated values and detailed performance curves, including NPSH and efficiency (Eta) data.

Electrical Data

CME 15 pumps are equipped with a Grundfos MGE motor incorporating a frequency converter.

• Supply Voltage:
  • 3 x 380-480 V, 50/60 Hz (supply voltage L)
  • 3 x 460-480 V, 60 Hz (supply voltage N)
• P2 [kW] (Nominal Power):
  • CME 15-1: 2.20 kW
  • CME 15-2: 4.0 kW
  • CME 15-3 (50/60 Hz supply): 7.5 kW
  • CME 15-3 (60 Hz supply): 5.5 kW

Control and Communication

Communication with CME pumps is possible through:

• A central building management system, allowing remote monitoring and adjustment of control modes and setpoint settings.
• A Grundfos R100 remote control (accessory), which uses an IR signal to communicate with the control panel.
• A control panel on the CME pump terminal box for manual setpoint adjustments.

Communication interfaces for CIU units (mentioned in context of CME communication): LON, PROFIBUS DP, Modbus RTU, GSM, GRM, BACnet MS/TP.

Mechanical / Hydraulic

Materials of Construction

CME pumps are available in cast iron (EN-GJL-200) and stainless steel (EN 1.4301/AISI 304 or EN 1.4401/AISI 316) versions.

• Key Motor Parts:
  • Motor flange: Cast iron
  • Stator housing: Silumin (Alu)
  • Fan cover: Composite PBT/PC
  • Fan: Composite PA 66 30 % GF
  • Terminal box: Composite PC/ASA or silumin (Alu)
  • Base plate: Steel, electro-coated or powder-coated
  • Diverting disc: Silicone fluid (LSR)
  • Bearing cover plate: PPS
• Key Pump Parts:
  • Shaft seal (steel parts): Stainless steel (1.4301/1.4401 or 1.4401)
  • Shaft seal (seal faces): Al₂O₃/carbon or SiC
  • Pump shaft: Stainless steel (1.4057/AISI 431, 1.4301/1.4401, or 1.4401)
  • O-rings: EPDM, FKM or FFKM
  • Chamber: Stainless steel (1.4301/1.4401 or 1.4401)
  • Plug: Stainless steel (1.4404/AISI 316L)
  • Impeller: Stainless steel (1.4301/1.4401 or 1.4401)
  • Spacing pipe: Stainless steel (1.4401)
  • Clamp: Stainless steel (STX2000)
  • Nut: Stainless steel A4
  • Washer (NORD-LOCK®): Steel (1.4547)
  • Cast iron versions (CM(E)-A) include: Discharge part (Cast iron), Inlet part (Cast iron), Gasket (Aramide fibres (nbr)).
  • Stainless steel versions (CM(E)-I/G) include: Flange (Cast iron), Sleeve (Stainless steel 1.4301/1.4401 or 1.4401), Gasket (Paper).

Dimensions

Exact dimensions (A1-A4, B1-B3, H1, H2, L2-L9) vary by pump type and frame size. See the official PDF for detailed dimensional drawings and tables.

• CME 15-A (Cast Iron) - Key Dimensions (L1, H in mm):
  • CME15-1 (2.20 kW): L1=461, H=267
  • CME15-2 (4.0 kW): L1=530, H=300
  • CME15-3 (7.5 kW or 5.5 kW): L1=560, H=300
• CME 15-I and CME 15-G (Stainless Steel) - Key Dimensions (L1, H in mm):
  • CME15-1 (2.20 kW): L1=490, H=267
  • CME15-2 (4.0 kW): L1=559, H=300
  • CME15-3 (7.5 kW or 5.5 kW): L1=559, H=300

Weights and Shipping Volume

• CME 15-1: Net weight 36.3-36.4 kg, Gross weight 39.8-39.9 kg, Shipping volume 0.0847 m³
• CME 15-2: Net weight 54.3-57.6 kg, Gross weight 57.8-61.1 kg, Shipping volume 0.0847 m³
• CME 15-3: Net weight 58.2-62.0 kg, Gross weight 61.7-65.5 kg, Shipping volume 0.0847 m³

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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 complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror