2 nomenclature – Flowserve NM User Manual
Page 13
NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09
Page 13 of 48
•
Maximum pumped fluid temperature
- With a stuffing box without cooling ....105 °C
- With a stuffing box and cooling ..........140 °C
for the pumps 32, 40, 50, 65, 80, 100, 125,
150, 200 and 201 NM.
- With a mechanical seal without cooling
............................................................. 80 °C
- With a mechanical seal and cooling
...................................................... Consult us
•
Minimum pumped fluid temperature.... -10 °C
•
Maximum solid suspension ................. 50 g/m
3
•
Density................................................. 1
•
Viscosity .............................................. 1 mm²/s
•
Frequency .............. 50 Hz (1450 - 2900 min
-1
)
................................ 60 Hz (1750 - 3500 min
-1
)
•
Maximum number of stages (according to speed of rotation)
Maximum number of stages
Speed
min
-1
32
NM
40
NM
50
NM
65
NM
80
NM
100
NM
125
NM
150
NM
200
NM
201
NM
102
NM
122
NM
152
NM
202
NM
252
NM
352
NM
3500
10
7
6
6
5
4 6
3*
2900
12
10
9
8
7
6 9
5
1750
12
10
9
8
7
8 9
10
6 9
6 7
4
7
5
4
4
4
1450
12
10
9
8
7
9
10
9 12
8 11
6
10
6
6
5
5
4*
* With impeller in bronze
In heavy type: Realization, which needs Ductile
cast iron.
The maximum speed is shown on
the pump nameplate.
3.2 Nomenclature
Characteristics shown on the nameplate fixed on the pump are as shown below:
Each pump is supplied with the following nameplate:
Each pump unit is supplied with the following nameplate:
Mass of the set
Pump type
Speed of rotation
Flow rate
Year of construction +
Manufacture number
Head
Radial/thrust bearing
Mass
Maximum admissible
Pressure at 20 °C
Maximum / minimum
temperature