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NG | |
Self-Priming Jet Pumps
Construction
Close-coupled self-priming shallow well jet pumps with built-in
ejector.
Applications
For drawing water out of a well.
As pressure boosting pump for central water systems with low
pressure (follow local specifications if increasing network
pressure).
For clean liquods or slightly dirty surface water.
For garden use.
For washing with a jet of water.
Operating conditions
Liquid temparature up to 40°C.
Ambient temparature up to 40°C.
Maximum permissible working pressure up to 10 bar.
Continuous duty. |  |
|
Motor
2-pole induction motor, 50 Hz (n= 290 rpm).
NG: three-phase 230/400V ± 10%
NGM: single-phase 230V ± 10%, with thermal
protector.
Capacitor inside the terminal box.
Insulation class F.
Protection IP 54.
Constructed in accordance with: EN 60335-2-41.
Special features on request
- other voltages.
- Frequency 60 Hz.
- Protection IP 55.
- Special mechanical seal
- Higher liquid or ambient temparatures.
Materials
| Components
|
NG
|
B-NG |
Pump casing
Cover with latern bracket
Diffuser plate
|
Cast iron
GJL 200 EN 1561
|
Bronze
B-Cu Sn 10 UNI 7013 |
| Impeller | Brass P-Cu Zn 40 Pb 2 UNI 5705 |
| Shaft
|
Chrome steel
1.4104 EN 10088
AISI 420
|
Chrome-nickle steel
1.44.1 EN 10088
AISI 316 |
Diffuser
Ejector | Polycarbonate |
| Mechanical seal | Carbon - Ceramic -NBR |
|
|
|
Performance (2850 min-¹, 50 Hz) |
|
Characteristic Curves for suction lift Hs = 1m,
|
3~ 230V 400V
|
1~ 230V P1
|
P2
|
Q
m³/h
|
0,25
|
0,5
|
1
|
1,5 |
2 |
2,5 |
3 |
3,5 |
4 |
4,5 |
5 |
5,5 |
6 |
6,5 |
7 |
8 |
9 |
9,5 |
................... |
A |
A |
.............................. |
A |
kW |
kW |
HP |
l/min |
4,1 |
8,3 |
16,6 |
25 |
33,3 |
41,6 |
50 |
58,3 |
66,6 |
75 |
83,3 |
91,6 |
100 |
108 |
116 |
133 |
150 |
158 |
| NG
3E
B-NG 3E |
3
|
1,7
|
NGM 3E
B-NGM 3E |
4,5
|
0,9
|
0,55
|
0,75
|
H
(m) |
49
|
45,5
|
40
|
36
|
32
|
28
|
24
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
NG 4E
B -NG 4E |
3,7
|
2,2
|
NGM 4E
B -NGM 4E |
5,7
|
1
|
0,75
|
1
|
41
|
39
|
36
|
33
|
31
|
29
|
26
|
24
|
21
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
B-NG 5/16E |
5
|
2,9
|
B-NGM 5/16E |
7,4
|
1,64
|
1,1
|
1,5
|
-
|
59
|
54
|
50
|
46
|
43
|
40
|
37
|
34,5
|
32
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
B-NG 5/18E |
5
|
2,9
|
B-NGM 5/18E |
7,4
|
1,68
|
1,1
|
1,5
|
-
|
48,5
|
46
|
43,5
|
41,5
|
39,5
|
38
|
35,5
|
34
|
32
|
30,5
|
29
|
28
|
-
|
-
|
-
|
-
|
-
|
|
B-NG 5/22E |
5
|
2,9
|
B-NGM 5/22E |
7,4
|
1,55
|
1,1
|
1,5
|
-
|
35,5
|
34,5
|
33
|
31,5
|
30,5
|
29,5
|
28
|
27
|
26
|
25
|
23,5
|
23
|
21,5
|
20,5
|
18,5
|
16,5
|
15,5
|
|
B-NG 6/18E |
7,5
|
4,3
|
- |
-
|
-
|
1,5
|
2
|
-
|
64,5
|
62
|
59
|
56
|
54
|
51
|
48,5
|
46
|
43,5
|
41,5
|
39
|
36,5
|
-
|
-
|
-
|
-
|
-
|
| |
-
|
-
|
B-NGM 6/16E |
9,2
|
2
|
1,5
|
2
|
-
|
59
|
57
|
54
|
51
|
48
|
45
|
43
|
40
|
37,5
|
35
|
33
|
30
|
-
|
-
|
-
|
-
|
-
|
| |
7,5
|
4,3
|
- |
-
|
-
|
1,5
|
2
|
-
|
51,5
|
50
|
48,5
|
47
|
46
|
44,5
|
43
|
41,5
|
40
|
39
|
37,5
|
36,5
|
35
|
33,5
|
31
|
28,5
|
27
|
| - |
-
|
-
|
B-NGM
6/22E |
9,2
|
2
|
1,5
|
2
|
-
|
47
|
45
|
43,5
|
42
|
41
|
40
|
38
|
37
|
36
|
35
|
33
|
32
|
31
|
30
|
27
|
24
|
23
|
| B-NG
7/16E |
9,15
|
5,3
|
- |
-
|
-
|
2,2
|
3
|
-
|
89
|
83
|
77
|
72
|
67
|
62
|
58
|
54
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
| B-NG
7/18E |
9,15
|
5,3
|
- |
-
|
-
|
2,2
|
3
|
-
|
74,5
|
71,5
|
68,5
|
65,5
|
63
|
60
|
57,5
|
55
|
53
|
51
|
49
|
47
|
45
|
-
|
-
|
-
|
-
|
| B-NG
7/22E |
9,15
|
5,3
|
- |
-
|
-
|
2,2
|
3
|
-
|
59
|
57,5
|
56,5
|
55
|
54
|
52,5
|
51
|
50
|
48,5
|
47
|
45,5
|
44
|
42,5
|
41,5
|
38
|
35
|
34
|
| P1 Max.
power input
|
P2
Rated motor power output
|
B-NG,
B-NGM = Bronze construction.
|
Tolerances
according to ISO 9906, annex A. |
|
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Installation examples |
Positive suction head
operation
| Suction
lift operation 
|
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Dimensions and weights |
 |
TYPE
|
DN1
|
DN2 | mm | kg |
ISO
228
|
a1
|
a2
|
f
|
h1
|
h2
|
h3
|
m1
|
m2
|
m3
|
n1
|
n2
|
b
|
s
|
w
|
g
|
NG
|
B-NG |
NG 3E
NG 4E
|
B-NG 3E
B-NG 4E
|
G1
|
G1
|
127
|
8
|
430
|
150
|
43
|
203
|
60
|
52
|
8
|
185
|
155
|
35
|
9,5
|
100
|
11
|
18,4
19,2
|
20,8
21,5 |
NG 5E
NG 6E
NG 7E
|
B-NG 5E
B-NG 6E
B-NG 7E
|
G1½
|
G1
|
160
|
10
|
560
|
165
|
57
|
197
|
60
|
50
|
10
|
215
|
175
|
40
|
11,5
|
115
|
11
|
29,2
30,8
31,3
|
31,6
32,9
33,4 |
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notice |
Subject to change! |
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Linn-Pumpen
GmbH 
NM
