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Idiomas disponibles
Idiomas disponibles
Close coupled
centrifugal in-line pumps
NR, NR4
OPER TING INSTRUCTIONS
S FETY
Read these instructions carefully before in-
stalling or using the device.
The assembler and final user must carefully com-
ply with all applicable standards and laws, inclu-
ding local regulations. The manufacturer declines
any liability in the event of damage due to impro-
per use or use under conditions other than those
indicated on the serial plate and in these instruc-
tions. The device has been built in conformity
with the current European Community laws.
Head
Delivery
Rotation speed rpm
Pump type
Example plate pump
MONTORSO
VICENZA
NR 50/160B/A
2900/min
5,5kW (7,5Hp)
Q min/max 15/30 m
H max/min 31/20 m
Example plate motor
MONTORSO
VICENZA
5,5kW (7,5Hp)
400∆/690Y V3~50Hz
n 2900/min
S1 l.cl. F
V
%
cosϕ
400
100
0,84
400
75
0,78
400
50
0,67
IEC 60034-1
Rotation speed rpm
Operation Duty / Insul. class
Supply voltage
Fréquence/Nom. motor current
Rated power
1. Operating conditions
Standard construction
- For clean liquids, without abrasives, non-explo-
sive, non-aggressive for the pump materials,
Notes
Liquid temperature
Serial number
Certifications
Made in Italy
0705158995
T.liq 50 °C
/h
3
XYXYRRY
Made in Italy
0705158995
10,8 / 6,2 A
η
87,5
45kg
88,1
87,4
IP 54
IE2-87
Efficiency class
Protection
Weight
with a maximum temperature of 90°C.
- Maximum permissible working pressure up to
10 bar.
- Installation in well ventilated location protected
from the weather with a maximum ambient tem-
perature of 40°C.
The electric data marked on the label are referred
to the nominal power of the motor.
Rated motor power
NR (2900 1/min)
up to kW:
NR4 (1450 1/min)
up to kW:
Sound pressure dB (A) max:
Starts per hour
TTENTION: for water circulation into
heating systems the choice of the pump
must be particularly careful in order to
avoid noise for excessive capacity.
2. Transportation
The safe movement of the equipment is
on the user responsability and any lif-
ting operation must be carried out by a
suitably trained and qualified personnel.
Raise the pump-motor unit slowly (fig.1), making sure
it does not move from side to side in an uncontrolled
way, to avoid the risk of imbalance and tipping up.
(fig. 1)
3. Installation
The NR, NR4 (NRM, NR4M with single phase
motor) close coupled pumps have suction and
delivery connections with the same diameter and
on the same axis (in-line), so that thet may be in-
serted into a straight pipe like a gate valve.
Into stable and rigid pipelines the pump can be
supported directly through the flanges (fig. 2).
2,2 7,5 18,5
5,5
68 72 78
max:
20 16 12
(fig. 2)
5
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