NM, NMS 60 Hz
Construction
NM, NM4 Close-coupled centrifugal pumps; electric motor with extended shaf
t
directly connected to the pump up to 22 kW (15 kW for NM4)
.
NMS, NMS4 Close-coupled centrifugal pumps, new bracket construction fo
r
standard motors (stub-shaft construction) with integrated thrust bearing
.
Rated speed of rotation (60 Hz)
:
NM, NM
S ≈
NM4, NMS
4
3450 1/min.
1750 1/min.
≈
Pump casing with axial suction and radial delivery on top, main dimensions and
performance according to EN 733 with additional sizes for completion.
(NMS4
80/400).
NM(S), NM(S)4: version with pump casing and lantern bracket in cast iron
.
BNM(S), BNM(S)4: version with pump casing and lantern bracket/casing cove
r
in bronze
.
The pumps are supplied fully painted
.
Version with frequency converter (on request
)
Connections: Flanges PN 10-16, EN 1092-2 (PN 10 for DN 200)
Counter-
flanges (on request
)
Sizes
Flanges
from NM, NM4 32/.. to NM, NM4 50/..
Screwed flanges EN 1092-1, PN 1
6
from NM, NM4 65/.. to NMS4 150/..
Flanges for welding EN 1092-1, P
N
10-16 (PN 10 for DN 200)
Application
s
For clean liquids without abrasives, which are non-aggressive for the pum
p
materials ( solids content up to 0.2%)
.
For water supply
.
For heating, air-conditioning, cooling and circulation plants
.
For civil and industrial applications
.
For irrigation.
Operating condition
s
Liquid temperature from -10 °C to +90 °C
.
Ambient temperature up to 40° C.
Total suction lift up to 7 m
.
Maximum permissible working pressure up to 16 bar (10 bar for NM 32/12;
NM,NM4 32/16,20; NM,NM4 40/25; NM,NM4 50/20,25; NM4 65/31; NM,NM4
100/25; NM4 100/315,400; NM4 125/250 and bronze version)
.
Continuous duty
.
Motor
2-pole induction motor, 60 Hz (
n
NM, NMS: three-phase
≈ 3450 1/min).
220/380 V, 220/440 V, up to 3 kW
;
380/660 V from 4 to 75 kW
;
4-pole induction motor, 60 Hz (
n ≈ 1750 1/min).
NM4, NMS4: three-phase
220/380 V, 220/440 V, up to 3 kW
;
380/660 V from 4 to 75 kW
;
Insulation class F
.
Protection IP 54 (IP 55 for NMS)
.
Motor suitable for operation with frequency converter
.
Three-phase motors with efficiency class IE2 up to 0.65 kW, IE3 from 0.7
5
to 55 kW, IE4 from 75 kW
.
Constructed in accordance with: EN 60034-1; EN 60034-30-1
.
Special features on reques
t
Other voltages.
Impeller in chrome-nickel stainless steel AISI 316 for: from 32/... to 80/..
.
Protection IP 55.
Special mechanical sea
l
IE4 e
fficiency class for three-phase motor
s
Single-phase motor (NMM) up to 1,8 kW.
Higher or lower liquid or ambient temperatures
.
Designatio
n
Example: BNMS(4) EI 32/16A/B-60
B = Bronze version (no indication: the pump is in the Cast Iron version
)
NM = Series
S = Series Version Stub-Shaft
4 = 4-pole version (without indication, 2-pole version)
EI = With frequency converter I-MAT
32 = Delivery port diameter in m
m
16 = Nominal impeller diameter
A = Impeller siz
e
/
B = It refers to a revision
60 = Frequency 60Hz
The electropumps comply with the European Regulation no. 547/2012
.
Materials
Components
NM, NM4, NMS, NMS4
BNM, BNM4, BNMS, BNMS4
Pump casing
Cast iron GJL 250 EN 1561 for PN 1
0
Cast iron GJS 400-15 EN 1563 for PN 16
Bronze CC480K EN 198
2
Lantern bracket NM
Cast iron GJL 200 EN 1561
Bronze CC480K EN 198
2
Casing cover for NMS(4)
Cast iron GJL 200 EN 1561
Bronze CC480K EN 198
2
Lantern bracket NMS(4)
Cast iron GJL 200 EN 1561
Cast iron GJL 200 EN 156
1
Cast iron GJL 200 EN 1561
Impelle
r
Cast iron GJL 250 EN 1561
For ..65/315; 80/315,400; 100/315,400; 125/315,400;
150/315,400
Bronze CC480K EN 198
2
Brass CW617N EN 12167
For .. 32/12-16-20, .. NM 40/20
Brass CW617N EN 12167
For .. 32/12-16-20, .. NM 40/20
Shaft
Chrome-nickel steel 1.4305 EN 10088 (AISI 303)
Steel 1.4401 EN 10088 AISI 316 (NMS, NMS4
)
Stainless Steel 1.4401 EN 10088 (AISI 316
)
Steel 1.4462 EN 10088 (AISI 2205) for NMS4150/400S Steel 1.4462 EN 10088 (AISI 2205) for BNMS4150/400
S
Mechanical seal
Carbon - Ceramic - NBR
Carbon - Ceramic - NB
R
Counter-
flanges
Steel 1.0044 EN 10025-2 (Fe 430B)
Steel 1.0044 EN 10025-2 (Fe 430B)
35
