Pump Selector
Pump Selector
pump
Model
NMD 20/140B/A
Family
NM, NMD
Code
6020004400000
Speed
Fixed speed
Max Flow Rate
4,80 m³/h
H max
53,00 m
Pump casing
Cast iron GJL 200 EN 1561
Min Flow Rate
1,00 m³/h
Min head
40,00 m
kW
1,10
kW
Power consumption
---
Efficiency
---
Curve
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Pump and motor datasheet
-
n (rpm):
2900
-
N. of impellers:
2
-
H max (m):
53.00
-
H min (m):
40.00
-
Q min (mc/h):
1.00
-
Q max (mc/h):
4.80
-
Pn (kW):
1.10
-
Pn (HP):
1.50
-
Impeller diameter (mm):
143.00
-
Motor type:
IM
-
Motor phases:
3~
-
Un (V):
230/400
-
fn (Hz):
50
-
Motor poles:
2
-
In (A):
4.6 / 2.7
-
Insulation class:
F
-
Service:
S1
-
Min liquid temperature (°C):
-10.00 °C
-
Efficiency Index (EI):
IE3-82.7
-
Weight (kg):
23.700
-
Protection:
IP 54
Construction materials
-
Pump Casing:
Cast iron GJL 200 EN 1561
-
Lantern bracket:
Cast iron GJL 200 EN 1561
-
Impeller:
Brass P-Cu Zn 40 Pb 2 UNI 5705
-
Shaft:
Cr-Ni steel 1.4305 EN 10088 (AISI 303)
-
Mechanical Seal:
Carbon-Ceramic-NBR
Files
Dimensions (mm)
- a 79.00 mm
- b 38.00 mm
- fM 416.00 mm
- g1 10.00 mm
- h1 112.00 mm
- h2 150.00 mm
- l1 110.00 mm
- l2 110.00 mm
- m1 75.00 mm
- m2 55.00 mm
- n1 200.00 mm
- n2 160.00 mm
- n3 31.00 mm
- HD 242.00 mm
- w 257.00 mm
- w5 27.50 mm
- dn1 G 1 1/4"
- dn2 G 1"
- s1 9.5
NM, NMD
Close coupled centrifugal pumps with screwed connections
Construction
Close-coupled, centrifugal pumps; electric motor with extended shaft directly connected to the pump.NM: single-impeller
NMD: with two back-to-back impellers (with axial thrust balancing).
Connections: threaded ports ISO 228/1 (BS 2779).
NM, NMD: version with pump casing and lantern bracket in cast iron.
BNM, BNMD: version with pump casing and lantern bracket in bronze.
The pumps are supplied fully painted.
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.
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 10 bar (16 bar for pumps NMD 25/190; NMD 32/210; NMD 40/180).
Continuous duty.