declines any liability for damage related to the
non-compliance of this warning.
1.4 Warranty
For the product warranty refer to the general terms
and conditions of sale.
The warranty covers only the replacement and
the repair of the defective parts of the goods
(recognized by the manufacturer).
The Warranty will not be considered in the following
cases:
- Whenever the use of the device does not conform
to the instructions and information described in this
manual.
- In case of changes or variations made without
authorization of the manufacturer.
- In case of technical interventions executed by a
non-authorized personnel.
- In case of failing to carry out adequate maintenance.
1.5 Technical assistance
Any further information about the documentation,
technical assistance and spare parts, shall be reque-
sted from: Calpeda S.p.A. (paragraph 1.2).
2 TECHNICAL DESCRIPTION
Close-coupled centrifugal pumps; electric motor with
extended shaft directly connected to the pump up to 15
kW for NM4 and 30 kW for NM, new bracket construc-
tion for standard motors (stub-shaft construction) from
18,5 to 75 kW for NM4 and 37 to 75 kW for NM with
integrated thrust bearing.
Pump casing with axial suction and radial delivery on top,
main dimensions and performance according to EN 733.
NM..: version with pump casing and lanter bracket in
cast iron.
B-NM..: version with pump casing and lanter
bracket/casing cover
in bronze. (the pumps are supplied fully painted).
2.1 Intended use
Standard construction
For clean liquids, non-explosive and non-flammable,
without abrasives, which are non-aggressive for the
pump materials (contents of solids up to 0.2%).
Liquid temperature from -10 °C to +90 °C.
Special construction
For clean liquids, non-explosive and non-flammable,
without abrasives, which are non-aggressive for the
pump materials (contents of solids up to 0.2%) with
the following characteristics:
-Cooling mixtures with temperatures from 0 to -30 ° C.
- Water with temperatures from 90 ° C to 140 ° C.
- Oil with temperature up to 200 ° C and / or maximum
density of 30 cSt.
2.2 Improper use
The device is designed and built only for the purpose
described in paragraph 2.1.
Improper use of the device is forbidden, as is
use under conditions other than those
indicated in these instructions.
Improper use of the product reduces the safety and
the efficiency of the device, Calpeda shall not be
responsible for failure or accident due to improper use.
2.3 Marking
The following picture is a copy of the name-plate
that is on the external case of the pump.
3 TECHNICAL FEATURES
3.1 Technical data
Dimensions and weight (paragraph 12.1).
Nominal speed 1450/1750/2900/3450 rpm
Protection IP54
Supply voltage / Frequency:
- up to 240V 1~ 50/60 Hz
- up to 480V 3~ 50/60 Hz
Check that the mains frequency and voltage corre-
spond to the electrical characteristics shown on the
indicator plate.
The electric data marked on the label are referred to
the nominal power of the motor.
Rated motor power
NM
(S) (2900 1/min) up to
kW:
2,2
7,5
30
75
NM
(S)
4
(1450 1/min) up to
kW:
7,5
30
75
Sound pressure dB (A)
max:
70
80
85
90
Starts per hour
max:
60
40
20
10
Maximum permissible working pressure (PN) up to
100 m (10 bar), 160 m (16 bar) pump in ductile iron.
The max. inlet water pressure: PN (Pa) - Hmax (Pa).
3.2 Operating conditions
Installation in well ventilated location protected from the
weather, with a maximum ambient temperature of 40 °C.
4 SAFETY
4.1 General provisions
Before using the product it is necessary to
know all the safety indications.
Carefully read all operating instructions and
the indications defined for the different steps:
from transportation to disposal.
The specialized technicians must carefully
comply with all applicable standards and laws,
including local regulations of the country
where the pump is sold.
The device has been built in conformity with
the current safety laws. The improper use
NM 40/20 - Operating Instructions
Page
3
XXXXXXX
IE2-87
XXXXXXXX
H max/min
XX
/
XX
m
n 2900/min
XXXXXX
IEC 60034-1
XX
kW (
XX
Hp)
Q min/max
XX
/
XX
m
3
/h
XXXXXXXX
IP 54
n 2900/min
400∆/690Y V3~50Hz
%
100
75
50
cos
ϕ
0,84
0,78
0,67
η
87,5
88,1
87,4
V
400
400
400
XX
/
XX
A
S1 l.cl. F
S1 49kg
92kg
XX
kW (
XX
Hp)
1
11
2
3
4
4
5
6
7
8
9
10
12
13
19
20
8
9
13
14
15
16
17
18
Montorso (VI) Italy IT 00142630243
Made in Italy
Montorso (VI) Italy IT 00142630243
Made in Italy
1 Type 1
2 Delivery
3 Head
4 Rated power
5 Supply voltage
6 Fréquence
7 Nom. motor current
8 Rotation speed rpm
9 Operation Duty
10 Insul. class
11 Certifications
12 Serial number
13 Weight
14 Notes
15 Voltage
16 % Load
17 Power factor
18 Efficiency
19 Protection
20 Efficiency Class
Example plate motor
Example plate pump
IST NM 07_2018ed26_MXS 11_03con gall 19/06/18 09:03 Pagina 10
