NF
Construction
End-suction centrifugal pumps compliant with UNI EN 12845 and UNI E
N
12259-12 standards.
Pump casing with axial suction and radial delivery on top, main dimensions and
performance according to EN 733 with additional sizes for completion
.
Back Pull-Out construction, for simple and quick dismantling and reassembly.
Connections: Connections: PN 10-16 flanges EN 1092-2 (PN 10 for DN 200).
Counter-flanges (on request
)
Maximum rotation speed
TYPE
RP
M
NF 32L-200A
290
0
NF 40-250C
290
0
NF 40-250B
290
0
NF 40-250A
290
0
NF 50-160A
290
0
NF 50L-200C
290
0
NF 50L-200B
290
0
Sizes
Flanges
NF 50L-200A
290
0
from NF 32-160 to NF 50-250
Screwed flanges PN 16 EN 1092-1
NF 50-250C
290
0
from NF 65-125 to NF 150-400
Flanges for welding PN 10-16 EN
1092-1 (PN 10 for DN 200)
NF 50-250B
290
0
NF 50-250A
290
0
Shaft sealin
g
– Standardized mechanical seal in accordance with ISO 3069
.
– Stu
ffing box seal (on request).
Application
s
For clean liquids without abrasives, which are non-aggressive for the pum
p
materials ( solids content up to 0.2%)
.
For
fire fighting applications. UNI EN 12845, UNI EN 12259-12
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 NF 40-250; NF
100-250)
.
Special features on reques
t
Special mechanical sea
l
Higher or lower liquid or ambient temperatures.
Designatio
n
Example: NF 50-250B/
A
NF = Series
50 = Delivery port diameter in m
m
250 = Nominal diameter of impelle
r
B = Impeller size
/A = indicates the versio
n
NF 50-250S
290
0
NF 50L-250C
290
0
NF 50L-250B
290
0
NF 50L-250A
290
0
NF 65-160B
290
0
NF 65-160A
290
0
NF 65-200C
290
0
NF 65-200B
290
0
NF 65-200A
290
0
NF 65L-200C
290
0
NF 65L-200B
290
0
NF 65L-200A
290
0
NF 65-250C
290
0
NF 65-250B
290
0
NF 65-250A
290
0
NF 80-250E
290
0
NF 80-250D
290
0
NF 80-250C
290
0
NF 80-250B
290
0
NF 80-250A
290
0
NF 100-200E
290
0
NF 100-200D
290
0
NF 100-200B
290
0
NF 100-200A
290
0
NF 100-250B
290
0
NF 100-250A
290
0
NF 125-315A
264
0
NF 125-400A
210
3
NF 150-315S
184
0
NF 150-400S
204
5
Materials
Components
NF
Mechanical seal
N
F
Packed gland
Pump casing
Cast iron GJL 250 EN 1561 for PN 1
0
Cast iron GJS 400-15 EN 1563 for PN 16
Cast iron GJL 250 EN 1561 for PN 10
Cast iron GJS 400-15 EN 1563 for PN 16
Casing cover
Cast iron GJL 200 EN 1561
Cast iron GJL 200 EN 156
1
Wear ring
Bronze CC493K EN 1982
Bronze CC493K EN 198
2
Impeller
Stainless Steel 1.4401 EN 10088 (AISI 316
)
Bronze CC480K EN 1982 for NF 100.., 125.., 150.
.
Stainless Steel 1.4401 EN 10088 (AISI 316
)
Bronze CC480K EN 1982 for NF 100.., 125.., 150..
Shaft
Stainless Steel 1.4401 EN 10088 (AISI 316)
Stainless Steel 1.4401 EN 10088 (AISI 316
)
Shaft sleeve
-
Bronze CC480K EN 1982 with chromate surfac
e
Shaft sealing
Carbon - Ceramic - NBR
-
Counter-
flanges
Steel 1.0044 EN 10025-2 (Fe 430B)
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