Pump Selector
Pump Selector
pump
Model
N 40-250A/A
Family
N
Code
5000078000000
Speed
Fixed speed
Max Flow Rate
42,00 m³/h
H max
90,00 m
Pump casing
Cast iron GJL 250 EN 1561
Min Flow Rate
15,00 m³/h
Min head
70,50 m
kW
15,00
kW
Power consumption
---
Efficiency
---
Curve
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Pump and motor datasheet
-
n (rpm):
2900
-
N. of impellers:
1
-
H max (m):
90.00
-
H min (m):
70.50
-
Q min (mc/h):
15.00
-
Q max (mc/h):
42.00
-
Pn (kW):
15.00
-
Pn (HP):
20.00
-
Impeller diameter (mm):
251.00
-
fn (Hz):
50
-
Motor poles:
2
-
Service:
S1
-
Min liquid temperature (°C):
-10.00 °C
-
Weight (kg):
55.000
Construction materials
-
Pump Casing:
Cast iron GJL 250 EN 1561
-
Casing Cover:
Cast iron GJL 200 EN 1561
-
Impeller::
Cast iron GJL 200 EN 1561
-
Shaft:
Chrome steel 1.4105 EN 10088 (AISI 430F)
-
Mechanical Seal:
Carbon-Ceramic-NBR
Files
Dimensions (mm)
- a 100.00 mm
- b 65.00 mm
- f 360.00 mm
- g1 15.00 mm
- h1 180.00 mm
- h2 225.00 mm
- l 50.00 mm
- l1 177.00 mm
- l2 177.00 mm
- m1 125.00 mm
- m2 95.00 mm
- n1 320.00 mm
- n2 250.00 mm
- n5 110.00 mm
- t 27.00 mm
- u 8.00 mm
- w 263.00 mm
- x 100.00 mm
- d 24
- dn1 65
- dn2 40
- s1 14
- s2 14
N
End-suction centrifugal pumps EN 733
Construction
Single-stage end-suction centrifugal pumps, with bearing bracket.The electropumps N, B-N, N4, B-N4 series comply with the European Regulation no. 547/2012 in force starting from 01.01.2013.
Nominal duty points and main dimensions in accordance with EN 733.
Back Pull-Out construction, for simple and quick dismantling and reassembly.
N, N4: version with pump casing and lanter bracket in cast iron.
B-N, B-N4: version with pump casing and lanter bracket in bronze (the pumps are supplied fully painted).
Rated speed of rotation (50 Hz): N = 2900 rpm. ; N4 = 1450 rpm.
Shaft sealing
Standardized mechanical seal in accordance with ISO 3069.
Stuffing box seal (on request).
Application
For clean liquids without abrasives, which are non-aggressive for the pump materials ( solids content up to 0.2%).For water supply.
For heating, air-conditioning, cooling and circulation plants.
?For civil and industrial applications and for agriculture.
For fire fighting applications.
For irrigation.
Operating conditions
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 per N,N4 32-12,16,20; N,N4 40-25; N,N4 50-20,25, N4 65-31, N,N4 100-250,315,400, N4 125-250,400, N4 150-400 and bronze version).