CALPEDA NM4 – End Suction 4 Pole Centrifugal Pumps


DELIVERY??-5 Days if in Stock | Average 2-3 Weeks | Contact us for Confirmation


Calpeda NM4

For clean liquids without abrasives, which are non-aggressive for the pump materials (contents of solids up to 0,2%).
For water supply. For heating, air conditioning, cooling and circulation plants. For civil and industrial applications.
When low noise operating is required. For irrigation.

Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 15 kW, new bracket construction for standard motors (Stub-shaft construction) from 18,5 to 75 kW with integrated thrust bearing. Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733 with additional sizes for completion.
NM(S)4: version with pump casing and lantern bracket in cast iron.
B-NM(S)4: version with pump casing and lantern bracket/casing cover in bronze. (the pumps are supplied fully painted).

NM4 25/…: Threaded ports ISO 228
from NM4 32/.. to NMS4 150/.. : Flanges according to PN 10, EN 1092-2

Counter-flanges (on request)
from NM4 32/.. to NM4 50/.. : Screwed flanges EN 1092-1, PN 16
from NM4 32/.. to NMS4 150/.. : Flanges for welding EN 1092-1, PN 10
Version with frequency converter (on request)

Operating conditions
Liquid temperature from -10 DegC to +90 DegC.
Ambient temperature up to 40 DegC.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar (16 bar for NM4 40/16,20; NM4 50/16; NM4 65/16,20,25; NM(S)4 80/16,31,400).
Continuous duty.

4-pole induction motor, 50 Hz (1450 rpm).
NM4, NMS4: three-phase 230/400V up to 3 kW;
400/690V from 4 to 75 kW.
Insulation class F. Protection IP 54 (IP 55 for NMS4).
Motor suitable for operation with frequency converter from 0,75 kW.
Classification scheme IE3 for three-phase motors from 0,75 kW.
Constructed in accordance with: EN 60034-1; EN 60034-30-1.

Special features on request
– Other voltages. – Frequency 60 Hz (as per 60 Hz data sheet).
– Protection IP55. – Special mechanical seal.
– Higher or lower liquid or ambient temperatures.
– Motor suitable for operation with frequency converter up to 0,55 kW

Calpeda are an Industry Leading Italian manufacturer of electric water pumps, for more general information on Calpeda and their range you can visit here

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Additional information

Discharge Size

1, 10, 100, 11, 12, 120, 125, 132, 17, 180, 2, 20, 25, 3, 32, 40, 50, 50M, 65, 80


110A/A, 110B/A, 110Z/A, 1110Z/A, 116B/A, 12A/A, 12A/B, 12AE, 12B/A, 12C/A, 12D/B, 12DE, 12e-c, 12F/A, 12F/B, 12FE, 12s-c, 12SE, 140AE, 140BE, 160AE, 160BE, 16a-c, 16A/A, 16A/B, 16AE, 16ar, 16b-c, 16B/A, 16B/B, 16BE, 16c-c, 16C/A, 16C/B, 16d-c, 16D/B, 16e-b, 180A/A, 180B/A, 180C/A, 180D/A, 190A/A, 190B/A, 190C/A, 1AE, 200A/B, 200B/A, 200C/A, 20A/A, 20A/B, 20A/C, 20AR/A, 20B/A, 20B/B, 20B/C, 20BE, 20C/A, 20C/B, 20D/A, 20S/C, 210A/A, 210B/A, 210C/A, 210D/A, 250B, 25A/B, 25A/C, 25B/A, 25B/B, 25B/C, 25c, 25C/A, 25C/B, 25C/C, 25D/A, 25D/B, 25E/B, 31A/B, 31B/B, 31C/B, A/A, AE, B/A, BE, C/A, CE, D/A, DE, e-a, F/A, FE, GE, HE, S/A, SE


240, 415, Flanged, Threaded

Shipping & Delivery

We offer free standard delivery (3-5 working days) to all UK Addresses. Free delivery relates to all Pumps on our website and individually purchased spares or accessories over the value of £60 (before VAT). Individual Spares or Accessories purchased under £60 will incur a £8.50 + vat delivery charge.

Returns Policy