This page lists the ISG, IRG, IHG and ISW single-stage pipeline centrifugal pumps we supply, 343 builds in all, from 25 mm to 400 mm. One hydraulic range is shared by the four types: ISG is the vertical clean water pump, IRG the hot water version, IHG the stainless steel chemical version and ISW the horizontal layout. Find the inlet size and duty you need in the summary, then the exact build in the list below.
How to read the model
Take 50-160(I)A. 50 is the inlet and outlet size in mm. 160 is the nominal impeller diameter in mm. (I) marks the higher-flow version of the same frame. A, B and C mark progressively trimmed impellers, which give a little less flow and head with a smaller motor. Some frames are built at two speeds, 2900 r/min (2-pole) and 1450 r/min (4-pole), under the same model name, so always quote the speed or the motor power with the model.
Summary by inlet size
Inlet / outlet
Builds
Rated flow (m³/h)
Rated head (m)
Motor (kW)
DN25
4
3.6 to 4
16 to 32
0.75 to 1.5
DN32
2
4.5 to 5
16 to 20
0.75
DN40
27
5.3 to 12.6
10 to 80
0.75 to 11
DN50
31
10 to 25
10 to 125
0.75 to 30
DN65
42
11 to 50
10 to 125
0.75 to 37
DN80
46
20 to 100
3.8 to 125
0.55 to 75
DN100
33
40.5 to 160
4 to 125
1.1 to 75
DN125
37
87 to 200
3.8 to 125
1.5 to 90
DN150
20
160 to 200
10 to 125
11 to 110
DN200
32
160 to 400
10 to 80
11 to 132
DN250
12
456 to 550
17 to 80
37 to 200
DN300
26
575 to 1080
12.5 to 80
37 to 250
DN350
23
692 to 1200
10 to 65
45 to 250
DN400
8
935 to 1080
10 to 32
45 to 132
Operating limits
System pressure up to 1.6 MPa, counted as suction pressure plus pump head. Above that, say so when ordering so the wet end and connections can be built for it
Solids in the liquid no more than 0.1% by volume and no larger than 0.2 mm. For fine particles, a wear-resistant mechanical seal is fitted on request
Ambient temperature up to 40 °C, relative humidity up to 95%
Flow, head and efficiency below are the rated duty point. Each pump also covers a band around it, roughly from 70% to 130% of rated flow, with head falling as flow rises. NPSHr is the net positive suction head the pump needs; see our installation height guide for how to use it.
Full model list
DN25
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
25-125
2900
4
20
0.75
36
2.3
25-125A
2900
3.6
16
0.75
35
2.3
25-160
2900
4
32
1.5
32
2.3
25-160A
2900
3.7
28
1.1
31
2.3
DN32
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
32-125
2900
5
20
0.75
44
2.3
32-125A
2900
4.5
16
0.75
42
2.3
DN40
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
40-100
2900
6.3
12.5
0.75
54
2.3
40-100A
2900
5.6
10
0.75
52
2.3
40-125
2900
6.3
20
1.1
46
2.3
40-125A
2900
5.6
16
0.75
45
2.3
40-160
2900
6.3
32
2.2
40
2.3
40-160A
2900
5.9
28
1.5
39
2.3
40-160B
2900
5.5
24
1.1
38
2.3
40-200
2900
6.3
50
4
33
2.3
40-200A
2900
5.9
44
3
31
2.3
40-200B
2900
5.3
36
2.2
29
2.3
40-250
2900
6.3
80
7.5
28
2.3
40-250A
2900
5.9
70
5.5
28
2.3
40-250B
2900
5.5
60
4
27
2.3
40-100(I)
2900
12.5
12.5
1.1
62
2.3
40-100(I)A
2900
11
10
0.75
60
2.3
40-125(I)
2900
12.6
20
1.5
58
2.3
40-125(I)A
2900
11
16
1.1
57
2.3
40-160(I)
2900
12.5
32
3
52
2.3
40-160(I)A
2900
11.7
28
2.2
41
2.3
40-160(I)B
2900
10.4
22
1.5
49
2.3
40-200(I)
2900
12.5
50
5.5
46
2.3
40-200(I)A
2900
11.7
44
4
45
2.3
40-200(I)B
2900
10.6
36
3
44
2.3
40-250(I)
2900
12.5
80
11
38
2.3
40-250(I)A
2900
11.6
70
7.5
38
2.3
40-250(I)B
2900
10.8
60
7.5
37
2.3
40-250(I)C
2900
10
52
5.5
36
2.3
DN50
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
50-100
2900
12.5
12.5
1.1
62
2.3
50-100A
2900
11
10
0.75
60
2.3
50-125
2900
12.5
20
1.5
58
2.3
50-125A
2900
11
16
1.1
57
2.3
50-160
2900
12.5
32
3
52
2.3
50-160A
2900
11.7
28
2.2
51
2.3
50-160B
2900
10.4
22
1.5
49
2.3
50-200
2900
12.5
50
5.5
46
2.3
50-200A
2900
11.7
44
4
45
2.3
50-200B
2900
10.6
36
3
44
2.3
50-250
2900
12.5
80
11
25
2.3
50-250A
2900
11.6
70
7.5
38
2.3
50-250B
2900
10.8
60
7.5
37
2.3
50-250C
2900
10
52
5.5
36
2.3
50-100(I)
2900
25
12.5
1.5
69
2.5
50-100(I)A
2900
22.3
10
1.1
67
2.5
50-125(I)
2900
25
20
3
68
2.5
50-125(I)A
2900
22.3
16
2.2
66
2.5
50-160(I)
2900
25
32
4
63
2.5
50-160(I)A
2900
23.4
28
4
62
2.5
50-160(I)B
2900
21.6
24
3
58
2.5
50-200(I)
2900
25
50
7.5
58
2.5
50-200(I)A
2900
23.5
44
7.5
57
2.5
50-200(I)B
2900
21.8
38
5.5
55
2.5
50-250(I)
2900
25
80
15
50
2.5
50-250(I)A
2900
23.4
70
11
50
2.5
50-250(I)B
2900
21.6
60
11
49
2.5
50-315(I)
2900
25
125
30
40
2.5
50-315(I)A
2900
23.7
113
22
40
2.5
50-315(I)B
2900
22.5
101
18.5
39
2.5
50-315(I)C
2900
20.6
85
15
46
2.5
DN65
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
65-100
2900
25
12.5
1.5
69
2.5
65-100A
2900
22.3
10
1.1
67
2.5
65-125
2900
25
20
3
68
2.5
65-125A
2900
22.3
16
2.2
66
2.5
65-160
2900
25
32
4
63
2.5
65-160A
2900
23.4
28
4
63
2.5
65-160B
2900
21.6
24
3
58
2.5
65-200
2900
25
50
7.5
58
2.5
65-200
1450
12.5
12.5
1.1
58
2.8
65-200A
2900
23.5
44
7.5
57
2.5
65-200A
1450
11.3
10.1
0.75
56
2.8
65-200B
2900
21.8
38
5.5
55
2.5
65-250
2900
25
80
15
50
2.5
65-250
1450
12.5
20
2.2
50
2.8
65-250A
2900
23.4
70
11
50
2.5
65-250A
1450
11.7
17.5
1.5
49
2.8
65-250B
2900
21.6
60
11
49
2.5
65-250B
1450
11
15
1.1
48
2.8
65-315
2900
25
125
30
40
2.5
65-315
1450
12.5
32
4
41
2.8
65-315A
2900
23.7
113
22
40
2.5
65-315A
1450
11.7
28
3
41
2.8
65-315B
2900
22.5
101
18.5
39
2.5
65-315B
1450
11.3
25.3
3
38
2.8
65-315C
2900
20.6
85
15
38
2.5
65-100(I)
2900
50
12.5
3
73
3
65-100(I)A
2900
44.7
10
2.2
72
3
65-125(I)
2900
50
20
5.5
72.5
3
65-125(I)A
2900
45
16
4
71
3
65-160(I)
2900
50
32
7.5
71
3
65-160(I)A
2900
46.7
28
7.5
70
3
65-160(I)B
2900
43.3
24
5.5
69
3
65-200(I)
2900
50
50
15
67
3
65-200(I)A
2900
47
44
11
66
3
65-200(I)B
2900
43.5
38
7.5
65
3
65-250(I)
2900
50
80
22
59
3
65-250(I)A
2900
46.7
70
18.5
59
3
65-250(I)B
2900
43.3
60
15
58
3
65-315(I)
2900
50
125
37
54
3
65-315(I)A
2900
46.5
110
30
54
3
65-315(I)B
2900
44.5
100
30
53
3
65-315(I)C
2900
41
85
22
50
3
DN80
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
80-100
2900
50
12.5
3
73
3
80-100A
2900
44.7
10
2.2
72
3
80-125
2900
50
20
5.5
72.5
3
80-125
1450
25
5
0.75
71
2.8
80-125A
2900
45
16
4
71
3
80-125A
1450
21.8
3.8
0.55
67
2.8
80-160
2900
50
32
7.5
71
3
80-160
1450
25
8
1.5
69
2.8
80-160A
2900
46.7
28
7.5
70
3
80-160A
1450
22
6
1.1
67
2.8
80-160B
2900
43.3
24
5.5
69
3
80-200
2900
50
50
15
67
3
80-200
1450
25
12.5
2.2
67
2.8
80-200A
2900
47
44
11
66
3
80-200A
1450
23.3
11
1.5
65
2.8
80-200B
2900
43.5
38
7.5
65
3
80-250
2900
52
80
22
59
3
80-250
1450
25
20
3
60
2.8
80-250A
2900
46.7
70
18.5
59
3
80-250A
1450
22.2
15.8
3
58
2.8
80-250B
2900
43.3
60
15
58
3
80-250B
1450
20
12.8
2.2
57
2.8
80-315
2900
50
125
37
54
3
80-315
1450
25
32
5.5
53
2.8
80-315A
2900
46.5
110
30
53
3
80-315A
1450
22.5
26
4
51
2.8
80-315B
2900
44.5
100
30
51
3
80-315B
1450
20
21
4
49
2.8
80-315C
2900
41
85
22
51
3
80-100(I)
2900
100
12.5
5.5
74
4.5
80-100(I)A
2900
89
10
4
76
4.5
80-125(I)
2900
100
20
11
72
4.5
80-125(I)A
2900
89
16
7.5
72
4.5
80-160(I)
2900
100
32
15
74
4.5
80-160(I)A
2900
93.5
28
11
74
4.5
80-160(I)B
2900
86.6
24
11
72
4.5
80-200(I)
2900
100
50
22
74
4.5
80-200(I)A
2900
93.5
44
18.5
73
4.5
80-200(I)B
2900
87
38
15
71
4.5
80-250(I)
2900
100
80
37
69
4
80-250(I)A
2900
93.5
70
30
68
4
80-250(I)B
2900
87
60
30
66
4
80-315(I)
2900
100
125
75
66
4
80-315(I)A
2900
95
113
55
66
4
80-315(I)B
2900
90
101
45
64
4
80-315(I)C
2900
82
85
37
60
4
DN100
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
100-100
2900
100
12.5
5.5
76
4.5
100-100A
2900
89
10
4
74
4.5
100-125
2900
100
20
11
76
4.5
100-125
1450
50
5
1.5
75
3
100-125A
2900
89
16
7.5
74
4.5
100-125A
1450
44.6
4
1.1
63
3
100-160
2900
100
32
15
76
4.5
100-160
1450
50
8
2.2
75
3
100-160A
2900
93.5
28
11
74
4.5
100-160A
1450
46.8
7
1.5
73
3
100-160B
2900
86.6
24
11
72
4.5
100-160(I)
2900
160
32
22
78
4
100-200
2900
100
50
22
74
4
100-200
1450
50
12.5
3
74
3
100-200A
2900
93.5
44
18.5
73
4
100-200A
1450
46.8
11
2.2
72
3
100-200B
2900
87
38
15
71
4
100-200(I)
2900
160
50
37
77
5.5
100-200(I)A
2900
150
44
30
75
5.5
100-200(I)B
2900
138
37.5
22
73
5.5
100-250
2900
100
80
37
69
4
100-250
1450
50
20
5.5
70
3
100-250A
2900
93.5
70
30
68
4
100-250A
1450
46.8
17.5
4
68
3
100-250B
2900
87
60.5
30
68
4
100-250B
1450
43.5
15
3
65
3
100-315
2900
100
125
75
66
4
100-315
1450
50
32
11
66
3
100-315A
2900
95
113
55
66
4
100-315A
1450
47.5
28
7.5
64
3
100-315B
2900
90
101
45
65
4
100-315B
1450
40.5
21
5.5
63
3
100-315C
2900
82
85
37
63
4
DN125
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
125-100
2900
160
12.5
11
80
4
125-100A
2900
143
10
7.5
77
4
125-125
2900
160
20
15
78
4
125-125
1450
100
5
2.2
78
3
125-125A
2900
143
16
11
76
4
125-125A
1450
87.1
3.8
1.5
76
3
125-160
2900
160
32
22
78
4
125-160
1450
100
5
3
78
3
125-160A
2900
150
28
18.5
76
4
125-160A
1450
87.1
9.6
2.2
73
3
125-160B
2900
138
24
15
73
4
125-200
2900
160
50
37
77
5.5
125-200
1450
100
12.5
5.5
75
3
125-200A
2900
150
44
30
75
5.5
125-200A
1450
87.1
9.6
4
73
3
125-200B
2900
138
37.5
22
73
5.5
125-200(I)
1450
200
12.5
11
78
3
125-200(I)A
1450
179
10
7.5
76
3
125-250
2900
160
80
55
65
5
125-250
1450
100
20
11
74
3
125-250A
2900
150
70
45
74
5.5
125-250A
1450
93.3
17.5
7.5
73
3
125-250B
2900
138
60
37
73
5.5
125-250B
1450
87
15
5.5
72
3
125-250(I)
1450
200
20
15
79
3
125-250(I)A
1450
184.4
17
11
78
3
125-315
2900
160
125
90
70
5
125-315
1450
100
32
15
71
3
125-315A
2900
150
110
75
69
5
125-315A
1450
91.5
27
11
71
3
125-315B
2900
143
100
75
68
5
125-315B
1450
87
24
11
70
3
125-315C
2900
134
88
55
67
5
125-315(I)
1450
200
32
22
78
2.5
125-315(I)A
1450
187
28
18.5
77
3.5
125-315(I)B
1450
173
24
15
75
3.5
125-400(I)A
1450
187
40
37
74
3.5
DN150
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
150-160
2900
160
28
22
75
4.5
150-160(I)A
2900
200
32
30
76
4.5
150-200
1450
200
12.5
15
78
3
150-200A
1450
179
10
11
76
3
150-250
1450
200
20
18.5
79
3
150-250A
1450
184.4
17
15
78
3
150-250B
1450
167
14
11
76
3
150-315
1450
200
32
30
78
2.5
150-315A
1450
187
28
22
77
3.5
150-315B
1450
173
24
18.5
75
3.5
150-400
1450
200
50
45
75
3.5
150-400A
1450
187
40
37
74
3.5
150-400B
1450
174
38
30
73
3.5
150-400C
1450
160
32
22
71
3.5
150-250(I)
2900
200
80
75
76
4.5
150-250(I)A
2900
187
70
55
75
4.5
150-250(I)B
2900
173
60
45
74
4.5
150-315(I)
2900
200
125
110
73
4.5
150-315(I)A
2900
187
110
90
72
4.5
150-315(I)B
2900
173
95
75
70
4.5
DN200
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
200-200
1450
200
12.5
15
78
3
200-200A
1450
179
10
11
76
3
200-250
1450
200
20
18.5
79
3
200-250A
1450
184.4
17
15
78
3
200-250B
1450
167
14
11
76
3
200-315
1450
200
32
30
78
3.5
200-315A
1450
187
28
22
77
3.5
200-315B
1450
173
24
18.5
75
3.5
200-400
1450
200
50
45
75
3.5
200-400A
1450
187
44
37
74
3.5
200-400B
1450
174
38
30
73
3.5
200-400C
1450
160
32
22
71
3.5
200-200(I)
1450
400
12.5
22
80
4
200-200(I)A
1450
358
10
18.5
78
4
200-250(I)
1450
400
20
30
80
4
200-250(I)A
1450
358
16
22
78
4
200-250(I)B
1450
322
13
18.5
75
4
200-315(I)
1450
400
32
55
80
4
200-315(I)A
1450
374
28
45
79
4
200-315(I)B
1450
346
24
37
77
4
200-400(I)
1450
400
50
75
81
4
200-400(I)A
1450
374
43.7
75
80
4
200-400(I)B
1450
346
37.4
55
78
5
200-400(I)C
1450
320
32
45
71
5
200-500
1450
320
80
110
78
4
200-500A
1450
300
70
90
77
4
200-500B
1450
277
60
75
76
4
200-500C
1450
253
50
55
74
4
200-500(I)
1450
400
80
132
80
4
200-500(I)A
1450
375
70
110
78
4
200-500(I)B
1450
340
60
90
84
4
200-500(I)C
1450
320
50
75
82
4
DN250
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
250-250
1450
550
20
45
82
5
250-250A
1450
500
17
37
80
5
250-315
1450
550
32
75
80
5
250-315A
1450
515
28
55
80
5
250-315B
1450
476
24
45
78
5
250-400
1450
550
50
110
80
5
250-400A
1450
515
44.4
90
78
5
250-400B
1450
476
37.5
75
80
5
250-500
1450
550
80
200
79
5
250-500A
1450
520
72
160
78
5
250-500B
1450
490
64
132
77
5
250-500C
1450
456
55
110
83
5
DN300
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
300-250
1450
720
20
55
81
5
300-250A
1450
645
16
45
81
5
300-235
1450
720
18
55
81
5
300-235
960
720
18
55
79
5
300-235A
1450
657
15
45
79
5
300-235A
960
657
15
45
81
5
300-235B
1450
600
12.5
37
77
5
300-235(I)
1450
1080
40
160
80
5
300-235(I)A
1450
965
32
132
81
5
300-300
960
720
28
75
80
5
300-300A
960
666
24
75
79
5
300-300B
960
623
21
55
84
5
300-315B
1450
625
24
55
80
4.8
300-315
1450
720
32
90
80
4.8
300-315A
1450
670
28
75
78
4.8
300-380
960
720
44
132
80
5
300-380A
960
666
38
110
78
5
300-380B
960
623
33
90
82
5
300-400
1450
720
50
110
80
4.5
300-400A
1450
670
44
110
78
4.5
300-400B
1450
625
38
90
77
4.5
300-400C
1450
575
32
75
80
4.5
300-500
1450
720
80
250
79
4.5
300-500A
1450
670
70
200
78
4.5
300-500B
1450
625
60
160
77
4.5
300-500C
1450
575
52
132
82
4.5
DN350
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
350-200
1450
1200
12.5
55
80
5.5
350-200A
1450
1080
10
45
78
5.5
350-250
960
800
20
75
81
5
350-250
1450
1200
20
90
81
5.5
350-250A
1450
1080
16
75
81
5.5
350-250A
960
715
16
55
81
5.5
350-315
1450
1200
33
160
80
5.5
350-315
960
800
32
90
79
5
350-315A
1450
1120
28
132
78
5.5
350-315A
960
720
44
75
78
5
350-315B
1450
1040
24
110
80
5.5
350-315B
960
692
24
75
80
5
350-400
1450
1200
50
250
79
5.5
350-400A
1450
1120
44
200
78
5.5
350-400B
1450
1040
38
200
77
5.5
350-400C
1450
960
32
160
80
5.5
350-480
1450
900
65
220
79
5
350-480A
1450
850
56
200
78
5
350-400
960
800
50
160
79
5
350-400A
960
720
44
132
78
5
350-400B
960
697
38
110
83
5
350-480B
1450
800
50
160
77
5
350-480C
1450
744
43
132
82
5
DN400
Model
Speed (r/min)
Flow (m³/h)
Head (m)
Motor (kW)
Efficiency (%)
NPSHr (m)
400-400
960
1080
12.5
55
82
5
400-400A
960
966
10
45
81
5
400-500
960
1080
20.5
90
81
5
400-500A
960
935
15
75
80
5
400-500B
960
935
15
55
78
5
400-625
960
1080
32
132
82
5
400-625A
960
996
27
110
81
5
400-625B
960
935
24
90
80
5
Speeds are listed at the usual running speed of a 2-, 4- or 6-pole motor on 50 Hz. Send us the flow, head, liquid and temperature, and we will confirm the build, the material and the motor.
Deep well pumps built to your well: we set the motor power, impeller size and hole spacing to suit your borehole, your duty and your existing pipework.
Deep Well Pumps
Deep Well Pumps
Deep Well Pumps