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IRG Hot-Water Inline Circulation Pump/ High-Temperature Hot-Water Pump

Reference image. Final construction follows the confirmed model and quotation.

Centrifugal & Pipeline Pumps

IRG Hot-Water Inline Circulation Pump/ High-Temperature Hot-Water Pump

Model: IRG

IRG Hot-Water Inline Circulation Pump/ High-Temperature Hot-Water Pump is designed for clean-water transfer, pressure boosting, circulation and general industrial service. DFIN Pump provides model verification, material selection and technical support based on the actual duty point.

TECHNICAL DATA

Specifications, performance and construction

Confirm the final operating point, materials, motor and connection standard before ordering.

Product Overview

IRG Hot-Water Inline Circulation Pump/ High-Temperature Hot-Water Pump is an industrial centrifugal pump selected for clean-water transfer, pressure boosting, circulation and general industrial service. The final configuration should be verified against the actual liquid, duty point, temperature, installation and power supply.

Typical Applications

Clean-water transfer, pressure boosting, circulation and general industrial service.

Design Features

  • Compact hydraulic design
  • Stable flow with low vibration
  • Multiple materials and motor options
  • Model and material selection supported by DFIN Pump engineers

Extracted Operating Data

  • ≤1.0MPa ＜40℃， ＜40%
  • 0.1， ＜0.2mm

Values are reference data from the authorized source catalog. Confirm the selected model before ordering.

Technical Performance Data

Model Flow Head
(m) 		Efficiency
(%) 		Speed
(r/min) 		Motor Power
(kw)
(m3/h) (L/s)
15-80 1.1
1.5
2.0 		0.30
0.42
0.55 		8.5
8.0
7.0 		26
34
34 		2800 0.18
20-110 1.8
2.5
3.3 		0.50
0.69
0.91 		16.0
15.0
13.5 		25
34
35 		2800 0.37
20-125 1.8
2.5
3.3 		0.50
0.69
0.91 		21.0
20.0
18.6 		28
35
34 		2800 0.75
20-160 1.8
2.5
3.3 		0.50
0.69
0.91 		33
32
30 		19
25
23 		2900 1.5
25-110 2.8
4.0
5.2 		0.78
1.11
1.44 		16.0
15.0
13.5 		34
42
41 		2900 0.55
25-125 2.8
4.0
5.2 		0.78
1.11
1.44 		20.6
20.0
18.0 		28
36
35 		2900 0.75
25-125A 2.5
3.6
4.6 		0.69
1.00
1.28 		17.0
16.0
14.4 		29
35
31 		2900 0.75
25-160 2.8
4.0
5.2 		0.78
1.11
1.44 		33
32
30 		24
32
33 		2900 1.5
25-160A 2.6
3.7
4.9 		0.12
1.03
1.36 		29
28
26 		27
31
29 		2900 1.1
32-100 3.5
4.5
5.3 		0.97
1.24
1.47 		14.5
12.5
11 		35
40
38 		2900 0.55
30-125 3.5
5.0
6.5 		0.97
1.39
1.80 		22
20
18 		40
44
42 		2900 0.75
32-125A 3.1
4.5
5.8 		0.86
1.25
1.61 		17.6
16.0
14.4 		39
43
40 		2900 0.55
32-160 4.4
6.3
8.3 		1.22
1.75
2.32 		33
32
30 		40
44
42 		2900 1.5
32-160A 2.8
4.0
5.2 		0.78
1.11
1.44 		27
25
21 		31
34
32 		2900 1.1
32-200 3.1
4.5
5.8 		0.86
1.25
1.61 		50.5
50.0
48.0 		28
32
30 		2900 3
32-200A 2.8
4.0
5.2 		0.78
1.11
1.44 		44.6
44
42.7 		34
40
42 		2900 2.2
32-160(1) 4.4
6.3
8.3 		1.22
1.75
2.32 		33.2
32
30.2 		34
40
42 		2900 2.2
32-200(1) 4.4
6.3
8.3 		1.22
1.75
2.32 		50.5
50.0
48.0 		26
33
35 		2900 4
40-100 4.4
6.3
8.3 		1.22
1.75
2.31 		13.2
12.5
11.3 		48
54
53 		2900 0.55
40-100A 3.9
5.6
7.4 		1.08
1.56
2.06 		10.6
10.0
9.0 		48
52
50 		2900 0.37
40-125 4.4
6.3
8.3 		1.22
1.75
2.31 		21
20
18 		41
46
43 		2900 1.1
40-125A 3.9
5.6
7.4 		1.08
1.56
2.06 		17.6
16
14.4 		40
45
41 		2900 0.75
40-160 4.4
6.3
8.3 		1.22
1.75
2.31 		33
32
30 		35
40
40 		2900 2.2
40-160A 4.1
5.9
7.8 		1.14
1.64
2.17 		29
28
26.3 		34
39
39 		2900 1.5
40-160B 3.8
5.5
7.2 		1.06
1.53
2.0 		25.5
24
22.5 		34
38
37 		2900 1.1
40-200 4.4
6.3
8.3 		1.22
1.75
2.31 		51
50
48 		26
33
32 		2900 4
40-200A 4.1
5.9
7.8 		1.14
1.64
2.17 		45
44
42 		26
31
32 		2900 3
40-200B 3.7
5.3
7.0 		1.03
1.47
1.94 		38
36
34.5 		25
29
27 		2900 2.2
40-250 4.4
6.3
8.3 		1.22
1.75
2.31 		82
80
74 		24
28
28 		2900 7.5
40-250A 4.1
5.9
7.8 		1.14
1.64
2.17 		72
70
65 		24
28
27 		2900 5.5
40-250B 3.8
5.5
7.0 		1.06
1.53
1.94 		61.5
60
56 		23
27
26 		2900 4
40-100(1) 8.8
12.5
16.3 		2.44
3.47
4.53 		13.2
12.5
11.3 		55
62
60 		2900 1.1
40-100(1)A 8.0
11.0
14.5 		2.22
3.05
4.03 		10.6
10.0
9.0 		57
60
59 		2900 0.75
40-125(1) 8.8
12.5
16.3 		2.44
3.47
4.53 		21.2
20.0
17.8 		49
58
57 		2900 1.5
40-125(1)A 8.0
11.0
14.5 		2.22
3.05
4.03 		17.0
16.0
14.0 		53
57
55 		2900 1.1
40-160(1) 8.8
12.5
16.3 		2.44
3.47
4.53 		33
32
30 		45
52
51 		2900 3
40-160(1)A 8.2
11.7
15.2 		2.28
3.25
4.22 		29
28
26 		44
51
50 		2900 2.2
40-160(1)B 7.3
10.4
13.5 		2.38
2.89
3.75 		23
22
20.5 		50 2900 1.5
40-200(1) 8.8
12.5
16.3 		2.44
3.47
4.53 		51.2
50
48 		38
46
46 		2900 5.5
40-200(1)A 8.3
11.7
15.3 		2.31
3.25
4.25 		45.0
44
42 		37
45
45 		2900 4
40-200(1)B 7.5
10.6
13.8 		2.08
2.94
3.83 		37
36
34 		44 2900 3
40-250(1) 8.8
12.5
16.3 		2.44
3.47
4.53 		81.2
80
77.5 		31
38
40 		2900 11
40-250(1)A 8.2
11.6
15.2 		2.28
3.22
4.22 		71.0
70
68 		38 2900 7.5
40-250(1)B 7.6
10.8
14 		2.11
3.0
3.89 		61.4
60
58 		37 2900 5.5
40-250(1)C 7.1
10.0
13.1 		1.97
2.78
3.64 		53.2
52
50.4 		36 2900 5.5
50-100 8.8
12.5
16.3 		2.44
3.47
4.53 		13.6
12.5
11.3 		55
62
60 		2900 1.1
50-100A 8
11
14.5 		2.22
3.05
4.03 		11
10
9 		60 2900 0.75
50-125 8.8
12.5
16.3 		2.44
3.74
4.53 		21.5
20
17.8 		49
58
57 		2900 1.5
50-125A 8
11
14.5 		2.22
3.05
4.03 		17
16
14 		57 2900 1.1
50-160 8.8
12.5
16.3 		2.44
3.47
4.53 		33
32
30 		45
52
51 		2900 3
50-160A 8.2
11.7
15.2 		2.28
3.25
4.22 		29
28
26 		44
51
50 		2900 2.2
50-160B 7.3
10.4
13.5 		2.38
2.89
3.75 		23
22
20.5 		50 2900 1.5
50-200 8.8
12.5
16.3 		2.44
3.47
4.53 		52
50
48 		38
46
46 		2900 5.5
50-200A 8.3
11.7
15.3 		2.31
3.25
4.25 		45.8
44
42 		37
45
45 		2900 4
50-200B 7.5
10.6
13.8 		2.08
2.94
3.83 		37
36
34 		44 2900 3
50-250 8.8
12.5
16.3 		2.44
3.47
4.53 		82
80
77.5 		29
38
40 		2900 11
50-250A 8.2
11.6
15.2 		2.28
3.22
4.22 		71.5
70
68 		38 2900 75
50-250B 7.6
10.8
14 		2.11
3.0
3.89 		61.4
60
58 		37 2900 5.5
50-250C 7.1
10.0
13.1 		1.97
2.78
3.64 		53.2
52
504 		36 2900 5.5
50-100(1) 17.5
25
32.5 		4.86
6.94
9.03 		13.7
12.5
10.5 		67
69
69 		2900 1.5
50-100(1)A 15.6
22.3
29 		4.3
6.19
8.1 		11
10
8.4 		65
67
68 		2900 1.1
50-125(1) 17.5
25
32.5 		4.86
6.94
9.03 		21.5
20
18 		60
68
67 		2900 3
50-125(1)A 15.6
22.3
29 		4.33
6.19
8.1 		17
16
13.6 		58
66
65 		2900 2.2
50-160(1) 17.5
25
32.5 		4.68
6.94
9.03 		34.4
32
27.5 		54
63
60 		2900 4
50-160(1)A 16.4
23.4
30.4 		4.56
6.5
8.44 		30
28
24 		54
62
59 		2900 3
50-160(1)B 15.0
21.6
28 		4.17
6.0
7.78 		26
24
20.6 		28 2900 2.2
50-200(1) 17.5
25
32.5 		4.86
6.94
9.03 		52.7
50
45.5 		49
58
59 		2900 7.5
50-200(1)A 16.4
23.5
30.5 		4.56
6.53
8.47 		46.4
44
40 		48
57
58 		2900 5.5
50-200(1)B 15.2
21.8
28.3 		4.22
6.06
7.86 		40
38
34.5 		55 2900 4
50-250(1) 17.5
25
32.5 		4.86
6.94
9.03 		82
80
76.5 		39
50
52 		2900 15
50-250(1)A 16.4
23.4
30.5 		4.56
6.5
8.47 		71.5
70
67 		39
50
52 		2900 11
50-250(1)B 15
21.6
28 		4.17
6.0
7.78 		61
60
57.4 		38
49
54 		2900 7.5
50-315(1) 17.5
25
32.5 		4.86
6.94
9.03 		128
125
122 		30
40
44 		2900 30
50-315(1)A 16.6
23.7
31 		4.61
6.58
8.6 		115
113
110 		30
40
44 		2900 22
50-315(1)B 15.7
22.5
29.2 		4.36
6.25
8.0 		103
101
98 		39 2900 18.5
50-315(1)C 14.4
20.6
26.8 		4.0
5.72
7.44 		86
85
83 		38 2900 15
65-100 17.5
25
32.5 		4.86
6.94
9.03 		13.7
12.5
10.5 		67
69
69 		2900 1.5
65-100A 15.6
22.3
29 		4.3
6.19
8.1 		11
10
8.4 		65
67
68 		2900 1.1
65-125 17.5
25
32.5 		4.86
6.94
9.03 		21.5
20
18 		60
68
67 		2900 3
65-125A 15.6
22.3
29 		4.33
6.19
8.1 		17
16
14.4 		58
66
65 		2900 2.2
65-160 17.5
25
32.5 		4.86
6.94
9.03 		34.4
32
27.5 		54
63
60 		2900 4
65-160A 16.4
23.4
30.4 		4.56
6.5
8.44 		30
28
24 		54
62
59 		2900 3
65-160B 15.0
21.6
28 		4.17
6.0
7.78 		26
24
20.6 		58 2900 2.2
65-200 17.5
25
32.5 		4.86
6.94
9.03 		52.7
50
45.5 		49
58
59 		2900 7.5
65-200A 16.4
23.5
30.5 		4.56
6.53
8.47 		46.4
44
40 		48
57
58 		2900 5.5
65-200B 15.2
21.8
28.3 		4.22
6.06
7.86 		40
38
34.5 		55 2900 4
65-250 17.5
25
32.5 		4.86
6.94
9.03 		82
80
76.5 		39
50
52 		2900 15
65-250A 16.4
23.4
30.5 		4.56
6.5
8.47 		71.5
70
67 		39
50
52 		2900 11
65-250B 15
21.6
28 		4.17
6.0
7.78 		61
60
57.4 		38
49
54 		2900 7.5
65-315 17.5
25
32.5 		4.86
6.94
9.03 		127
125
122 		32
40
44 		2900 30
65-315A 16.6
23.7
31 		4.61
6.58
8.6 		115
113
110 		32
40
44 		2900 22
65-315B 15.7
22.5
29.2 		4.36
6.25
8.0 		103
101
98 		39 2900 18.5
65-315C 14.4
20.6
26.8 		4.0
5.72
7.44 		86
85
83 		38 2900 15
65-100(1) 35
50
65 		9.72
13.9
18.1 		13.8
12.5
10 		67
73
70 		2900 3
65-100(1)A 31.3
44.7
58 		8.7
12.4
16.1 		11
10
8 		66
72
69 		2900 2.2
65-125(1) 35
50
65 		9.72
13.9
18.1 		22
20
17 		67
72.5
70 		2900 5.5
65-125(1)A 31.5
45
58 		8.7
12.5
16.1 		17.5
16
13.6 		66
71
69 		2900 4
65-160(1) 35
50
65 		9.72
13.9
18.1 		35
32
28 		63
71
70 		2900 7.5
65-160(1)A 32.7
46.7
61 		9.1
13.0
16.9 		30.6
28
24 		62
70
69 		2900 5.5
65-160(1)B 30.3
43.3
56.3 		8.4
12.0
15.6 		26
24
21 		69 2900 4
65-200(1) 35
50
65 		9.72
13.9
18.1 		53.5
50
46 		55
67
68 		2900 15
65-200(1)A 32.8
47
61 		9.1
13.1
16.9 		47
44
40 		54
66
67 		2900 11
65-200(1)B 30.5
43.5
56.6 		8.5
12.1
15.7 		40.6
38
33.4 		65 2900 7.5
65-250(1) 35
50
65 		9.72
13.9
18.1 		83
80
72 		52
59
60 		2900 22
65-250(1)A 32.5
43.3
46.7 		9.0
13.0
16.9 		73
70
63 		52
59
60 		2900 18.5
65-250(1)B 30
56
61 		8.3
12.0
15.6 		62
60
54 		58 2900 15
65-315(1) 35
50
65 		9.72
13.9
18.1 		128
125
121 		44
54
57 		2900 37
65-315(1)A 32.5
46.5
60.5 		9.0
12.9
16.8 		112.6
110
106.4 		43
54
57 		2900 30
65-315(1)B 31
44.5
58 		8.6
12.4
16.1 		102.5
100
98 		53 2900 30
65-315(1)C 29
41
53.6 		8.1
11.4
14.9 		87
85
83 		51 2900 22
80-100 35
50
65 		9.72
13.9
18.1 		13.8
12.5
10 		67
73
70 		2900 3
80-100A 31.3
44.7
58 		8.7
12.5
16.1 		11
10
8 		66
72
69 		2900 2.2
80-125 35
50
65 		9.72
13.9
18.1 		22
20
17 		67
72.5
70 		2900 5.5
80-125A 31.3
45
58 		8.7
12.5
16.1 		17.5
16
13.6 		66
71
69 		2900 4
80-160 35
50
65 		9.72
13.9
18.1 		35
32
28 		63
71
70 		2900 7.5
80-160A 32.7
46.7
61 		9.1
13.0
16.9 		30.6
28
24 		62
70
69 		2900 5.5
80-160B 30.3
43.3
56.3 		8.4
12.0
15.6 		26
24
21 		69 2900 4
80-200 35
50
65 		9.72
13.9
18.1 		53.5
50
46 		55
67
68 		2900 15
80-200A 32.8
47
61 		9.1
13.1
16.9 		47
44
40 		54
66
67 		2900 11
80-200B 30.5
43.5
56.6 		8.5
12.1
15.7 		40.6
38
33.4 		65 2900 7.5
80-250 35
50
65 		9.72
13.9
18.1 		83
80
72 		52
59
60 		2900 22
80-250A 32.5
46.7
61 		9.0
13.0
16.9 		73
70
63 		52
59
60 		2900 18.5
80-250B 30
43.3
56 		8.3
12.0
15.6 		62
60
54 		58 2900 15
80-315 35
50
65 		9.72
13.9
18.1 		128
125
122 		43
54
57 		2900 37
80-315A 32.5
46.5
60.5 		9.0
12.9
16.8 		112.6
110
107.4 		43
54
57 		2900 30
80-315B 31
44.5
58 		8.6
12.4
16.1 		102.5
100
98 		53 2900 30
80-315C 29
41
53.6 		8.1
11.4
14.9 		98
85
83 		51 2900 22
80-350 35
50
65 		9.72
13.9
18.1 		153.6
150
142 		55
66
67 		2900 55
80-350A 31
44.5
58 		8.6
12.4
16.1 		145.6
142
134.8 		65 2900 45
80-350B 29
41
53.6 		8.1
11.4
14.9 		138.6
135
127.8 		63 2900 37
80-100(1) 70
100
130 		19.4
27.8
36.1 		13.6
12.5
11 		66
76
75 		2900 5.5
80-100(1)A 62.6
89
116 		17.4
24.7
32.2 		11
10
8.8 		64
74
74 		2900 4
80-125(1) 70
100
130 		19.4
27.8
36.1 		23.5
20
14 		70
76
65 		2900 11
80-125(1)A 62.6
89
116 		17.4
24.7
32.2 		19
16
11 		68
74
65 		2900 7.5
80-160(1) 70
100
130 		19.4
27.8
36.1 		36.5
32
24 		70
76
65 		2900 15
80-160(1)A 65.4
93.5
121.6 		18.2
26.0
33.8 		32
28
21 		68
74
67 		2900 11
80-160(1)B 60.6
86.6
112.6 		16.8
24.1
31.3 		26
24
18 		72 2900 7.5
80-200(1) 70
100
130 		19.4
27.8
36.1 		54
50
42 		65
74
73 		2900 22
80-200(1)A 65.4
93.5
121.6 		18.2
26.0
33.8 		47.5
44
37 		67
73
72 		2900 18.5
80-200(1)B 61
87
113 		16.9
24.2
31.4 		41
38
32 		71 2900 15
80-250(1) 70
100
130 		19.4
27.8
36.1 		87
80
68 		62
69
68 		2900 37
80-250(1)A 65.4
93.5
121.6 		18.2
26.0
33.8 		76
70
59.5 		61
68
67 		2900 30
80-250(1)B 61
87
113 		16.9
24.2
31.4 		65
60
51 		66
 2900 22
80-315(1) 70
100
130 		19.4
27.8
36.1 		132
125
114 		55
66
67 		2900 75
80-315（1）A 66.5
95
123.6 		18.5
26.4
34.3 		119
113
103 		55
66
67 		2900 55
80-315（1）B 63
90
117 		17.5
25
32.5 		106.6
101
92 		65 2900 45
80-315（1）C 58
82
107 		16.1
22.8
29.7 		90
85
76 		63 2900 37
100-100 70
100
130 		19.4
27.8
36.1 		13.6
12.5
11 		66
76
75 		2900 5.5
100-100A 62.6
89
116 		17.4
47
32.2 		11
10
8.8 		64
74
74 		2900 4
100-125 70
100
130 		19.4
27.8
36.1 		23.5
20
14 		70
76
65 		2900 11
100-125A 62.6
89
116 		17.4
24.7
32.2 		19
16
11 		68
74
63 		2900 7.5
100-160 70
100
130 		19.4
27.8
36.1 		36.5
32
24 		70
76
65 		2900 15
100-160A 65.4
93.5
121.6 		18.2
26.0
33.8 		32
28
21 		68
74
67 		2900 11
100-160B 60.6
86.6
112.5 		16.8
24.1
31.3 		27
24
18 		72 2900 7.5
100-200 70
100
130 		19.4
27.8
36.1 		54
50
42 		65
74
73 		2900 22
100-200A 65.4
93.5
121.6 		18.2
26.0
33.8 		47.5
44
37 		64
73
72 		2900 18.5
100-200B 61
87
113 		16.9
24.2
31.4 		41
38
32 		71 2900 15
100-250 70
100
130 		19.4
27.8
36.1 		87
80
68 		62
69
68 		2900 37
100-250A 65.4
93.5
121.6 		18.2
26.0
33.8 		76
70
59.5 		61
68
67 		2900 30
100-250B 61
87
113 		16.9
24.2
31.4 		65
60
51 		66 2900 22
100-315 70
100
130 		19.4
27.8
36.1 		132
125
114 		55
66
67 		2900 75
100-315A 66.5
95
123.6 		18.5
26.4
34.3 		119
113
103 		65
66
67 		2900 55
100-315B 63
90
117 		17.5
25
32.5 		106.6
101
92 		65 2900 45
100-315C 58
82
107 		16.1
27.8
29.7 		90
85
76 		63 2900 37
100-350 60
100
120 		16.7
27.8
33.3 		153.6
150
142 		72
57
74 		2900 90
100-350A 61
87
113 		16.9
24.2
31.4 		145.6
142
134 		75 2900 75
100-350B 58
82
107 		16.1
22.8
29.7 		138.6
135
127 		75 2900 55
100-100(1) 96
160
192 		26.7
44.4
53.3 		14
12.5
10 		64
73
70 		2900 11
100-125(1) 96
160
192 		26.7
44.4
53.3 		24
20
14 		62
74
69 		2900 15
100-125(1)A 84
140
168 		23.3
39
46.7 		20
17
12 		64
72
68 		2900 11
100-160(1) 96
160
192 		26.7
44.4
53.3 		36
32
27 		69
79
75 		2900 22
100-160(1)A 84
140
168 		23.3
39
46.7 		32
28
23.5 		66
76
72 		2900 18.5
100-200(1) 96
160
192 		26.7
44.4
53.3 		53
50
45 		69
79
78 		2900 37
100-200(1)A 84
140
168 		23.3
39
46.7 		48
45
40 		64
74
73 		2900 30
100-200(1)B 60
100
120 		16.7
27.8
33.3 		43
40
36 		72 2900 22
100-250(1) 96
160
192 		26.7
44.4
53.3 		83
80
72 		65
77
74 		2900 55
100-250(1)A 84
140
168 		23.3
39
46.7 		75
72
65 		60
72
69 		2900 45
100-250(1)B 60
100
120 		16.7
27.8
33.3 		68
65
58 		70 2900 37
125-100 96
160
192 		26.7
44.4
53.3 		13
12.5
12 		82 2900 11
125-100A 86
143
172 		23.9
39.7
47.8 		10.4
10
9.6 		77 2900 7.5
125-125 96
160
192 		26.7
44.4
53.3 		22.6
20
9.6 		80 2900 15
125-125A 86
143
172 		23.9
39.7
47.8 		18
16
13.6 		77 2900 11
125-160 96
160
192 		26.7
44.4
53.3 		36
32
28 		78 2900 22
125-160A 90
150
180 		25
41.7
50 		31.5
28
24.5 		76 2900 18.5
125-160B 83
138
166 		21.7
38.3
46.1 		27
24
21 		73 2900 15
125-200 96
160
192 		26.7
44.4
53.3 		55
50
46 		77 2900 37
125-200A 90
150
180 		25
41.7
50 		48.4
44
40.5 		76 2900 30
125-200B 83
138
166 		31.7
38.3
46.1 		41.3
37.5
34.5 		75 2900 22
125-250 96
160
192 		26.7
4.4
53.3 		87
80
73 		75 2900 55
125-250A 90
150
180 		25
41.7
50 		84
76
70 		74 2900 45
125-250B 83
138
166 		21.7
38.3
46.1 		65
60
55 		73 2900 37
125-315 96
160
192 		26.7
44.7
53.3 		133
125
119 		70 2900 90
125-315A 90
150
180 		25
41.7
50 		117
110
104.6 		70 2900 75
125-315B 86
143
172 		23.9
39.7
47.8 		106.4
100
95.2 		69 2900 75
125-315C 80.5
134
161 		22.4
37.2
44.7 		96
88
86 		67 2900 55
150-125 96
160
192 		26.7
44.4
53.3 		22.6
20
17 		66
76
76 		2900 15
150-125A 90
150
180 		25
41.7
50 		18
16
13.6 		77 2900 11
150-160 96
160
192 		26.7
44.4
53.3 		36
32
27 		75 2900 22
150-160A 90
150
180 		25
41.7
50 		32
28
23.5 		76 2900 18.5
150-160B 84
140
168 		23.3
39
46.7 		27
24
21 		73 2900 15
150-200 140
200
260 		38.9
55.6
72.2 		13.8
12.5
10.6 		68
78
78 		1450 15
150-200A 125
176
232.5 		34.7
49.7
64.6 		11
10
8.5 		66
76
76 		1450 11
150-200B 110
160
207 		31
44.4
57.6 		9.2
8
6.8 		75 1450 7.5
150-250 140
200
260 		38.9
55.6
72.2 		21.8
20
17 		73
79
77 		1450 18.5
150-250A 129
184.4
240 		35.8
51.2
66.7 		18.5
17
14.4 		72
78
76 		1450 15
150-250B 117
167
217.5 		32.5
46.4
60.4 		15.2
14
12 		76 1450 11
150-315 140
200
260 		38.9
55.6
72.2 		33.8
32
28 		70
78
73 		1450 30
150-315A 131
187
243 		36.4
51.9
67.5 		29.5
28
24.5 		69
77
77 		1450 22
150-315B 121
173
225 		33.5
48.1
62.5 		25
24
21 		76 1450 18.5
150-350 96
160
192 		26.7
44.4
53.3 		153.6
150
142.8 		80 2900 110
150-350A 90
150
180 		25
41.7
50 		145.6
142
134.8 		70 2900 90
150-350B 84
140
168 		23.3
39
46.7 		138.6
135
127.8 		65
76
74 		2900 75
150-400 140
200
260 		38.9
55.6
72.2 		53
50
44 		68
75
71 		1450 45
150-400A 131
187
243 		36.4
51.9
67.5 		46.6
44
38.3 		67
74
70 		1450 37
150-400B 122
174
226.5 		33.9
48.3
62.9 		40
38
33 		73 1450 30
150-400C 112
160
208 		31.1
44.4
57.8 		34
32
28 		71 1450 22
150-250（1） 120
200
240 		33.3
55.6
66.7 		87
80
72 		65
76
74 		2900 75
150-250（1）A 112
187
224 		31.1
51.9
62.2 		76
70
63 		64
75
73 		2900 55
150-250（1）B 104
173
208 		28.9
48.1
57.8 		65
60
54 		63
74
72 		2900 45
150-315（1） 120
200
240 		33.3
55.6
66.7 		133
125
120 		58
73
75 		2900 110
150-315（10）A 112
187
224 		31.1
51.9
62.2 		116
110
105 		57
72
74 		2900 90
150-315（1）B 104
173
208 		28.9
48.1
57.8 		100
95
91 		55
70
72 		2900 75
200-200 140
200
260 		38.9
55.6
72.2 		13.8
12.5
10.6 		68
78
78 		1450 15
200-200A 125
179
232.5 		34.7
49.7
64.6 		11
10
8.5 		66
76
76 		1450 11
200-250 140
200
260 		38.9
55.6
72.2 		21.8
20
17 		73
79
77 		1450 18.5
200-250A 129
184.4
240 		35.8
51.2
66.7 		18.5
17
14.4 		72
78
76 		1450 15
200-250B 117
167
217.5 		32.5
46.4
60.4 		15.2
14
12 		76 1450 11
200-315 140
200
260 		38.9
55.6
72.2 		33.8
32
28 		70
78
78 		1450 30
200-315A 131
189
243 		36.4
51.9
67.5 		29.5
28
24.5 		69
77
77 		1450 22
200-315B 121
173
225 		33.6
48.1
62.5 		25
24
21 		76 1450 18.5
200-400 140
200
260 		38.9
55.6
72.2 		53
50
44 		68
75
71 		1450 45
200-400A 131
187
243 		36.4
51.9
67.5 		46.6
44
38.3 		67
74
70 		1450 37
200-400B 122
174
226.5 		33.9
48.6
62.9 		40
38
33 		73 1450 30
200-400C 112
160
208 		31.3
44.4
57.8 		34
32
28 		71 1450 22
200-200（1） 280
400
520 		77.8
111.1
114 		13.4
12.5
10.5 		70
80
79 		1450 22
200-200（1）A 250
358
465 		69.4
99.4
129.2 		10.7
10
8.5 		68
78
77 		1450 18.5
200-250（1） 280
400
520 		77.8
111.4
114 		22.2
20
14 		75
80
72 		1450 30
200-250（1）A 250
358
465 		69.4
99.6
129.2 		18
14
11.2 		73
78
70 		1450 22
200-250（1）B 226
322
419 		62.8
89.4
116.4 		14.4
13
7.3 		70
75
67 		1450 18.5
200-315（1） 280
400
520 		77.8
111.4
144 		36
32
26 		73
80
75 		1450 55
200-315（1）A 262
374
486 		72.8
103.9
135 		31.5
28
23 		72
79
74 		1450 45
200-315（1）B 242
346
450 		67.2
96.1
125 		27
24
19.5 		78 1450 37
200-400（1） 280
400
520 		77.8
111.4
144 		54.5
50
39 		75
81
77 		1450 75
200-400（1）A 262
374
486 		72.8
103.9
135 		48
44
34 		80 14550 75
200-400（1）B 242
346
450 		67.2
96.1
125 		41.4
38
29.6 		78 1450 55
200-400（1）C 224
320
416 		62.2
88.9
115.6 		34.9
32
25 		76 1450 45
250-250 350
550
650 		97.2
152.8
180.5 		22
20
16 		78
82
81 		1450 45
250-250A 300
500
600 		83.3
139
166.7 		18.3
17
14 		76
80
80 		1450 37
250-235 300
500
600 		83.3
139
166.7 		14
12.5
11 		73
78
70 		1450 22
250-300 300
500
600 		83.3
139
166.7 		22
20
16 		78 1450 37
250-315 350
550
650 		97.2
152.8
180.5 		34
32
28 		76
80
79 		1450 75
250-315A 300
500
600 		83.3
139
166.7 		29.5
28
24 		74
78
77 		1450 55
250-315B 260
450
250 		72.2
125
144.4 		25
24
20 		70
74
72 		1450 45
250-400 300
500
600 		83.3
139
166.7 		54.5
50
39 		72 1480 110
250-400A 262
450
521 		72.7
125
144.7 		46.6
44
38.3 		69 1480 90
250-500 385
550
660 		106.9
152.8
183.3 		87
80
68 		80 1480 160
250-500A 357
510
612 		99.2
141.7
170 		76.1
70
59.5 		78 1480 132
250-500B 329
470
564 		91.4
130.6
156.7 		65.2
60
51 		75 1480 110
300-235 540
720
900 		150
200
250 		20.5
18
15.0 		77
81
74 		1450 55
300-235A 450
600
720 		125
166
200 		17.2
15
12.5 		74
79
77 		1450 45
300-235B 420
540
650 		116.7
150
181 		14.3
12.8
10.5 		73
78
70 		1450 37
300-250 540
720
900 		150
200
250 		22.5
20
17 		80
83
84 		1450 55
300-250A 450
600
720 		136
166
200 		19.5
17
14 		81 1450 45
300-300 540
720
900 		150
200
250 		32
28
23 		82 1480 75
300-300A 450
600
720 		125
166
200 		27.5
24
20 		80 1480 75
300-300B 420
540
650 		116.7
150
181 		24
21
17 		78 1480 55
300-315 540
720
900 		150
200
250 		35
32
26 		84 1480 90
300-315A 460
650
800 		127.8
180
222 		31.5
28
23.5 		80 1480 75
300-315B 420
580
700 		116.7
161
194 		27
24
20.0 		78 1480 55
300-380 480
720
900 		133.3
200
250 		48
44
34 		84 970 132
300-380A 444
666
833 		123.3
185
231.4 		41.4
38
30 		80 970 110
300-380B 400
614
764 		113.6
170.6
213.1 		35
32
25 		78 970 90
300-390 540
720
900 		150
200
250 		20.5
18
15.5 		78
81
76 		980 55
300-390A 450
600
720 		126
167
200 		17.2
15
12.8 		77
79
75 		980 45
300-390B 400
540
650 		111
150
180 		14
12.5
11.5 		74
77
76 		980 37
300-400 450
600
720 		125
166
200 		55
50
42.5 		78 1480 110
300-480 540
720
900 		150
200
250 		31
28
24 		79
81
80 		980 75
300-480A 450
600
720 		126
166
200 		27.4
24
20.0 		78
80
79 		980 75
300--480B 400
540
650 		111
150
180 		24
21
17 		79 980 55
300-315（1） 650
950
1200 		180.6
263.9
333.3 		36
32
28 		82
 1450 132
300-315（1）A 600
900
1150 		166.7
250
320 		32
28
24 		80 1450 110
350-235 600
800
960 		167
222
267 		14
12.5
10.5 		80
83
82 		980 37
350-235（1） 800
1080
1350 		222.2
300
375 		20
16
12 		80
83
82 		980 75
350-300 600
800
960 		167
222
267 		22.5
20
17.5 		79
82
71 		980 75
350-315 600
800
960 		167
222
267 		35.5
32
28.5 		84 980 90
350-400 600
800
960 		167
222
267 		55
50
45.5 		83 980 160
400-300 920
1180
1300 		255
328
361 		23
19
16 		78 980 90
400-315 950
1250
1500 		264
347
416 		32
28
24 		76 980 132
500-235 1500
1800
2000 		416
500
556 		16
14
12 		75 980 110
500-300 1400
1700
1900 		388
472
528 		22
20
18 		80 980 132
500-315 1200
1550
1800 		333
416
500 		32
28
24 		78 980 160
Fault phenomena Possible Cause Troubleshooting
1. The pipeline centrifugal pump does not discharge water a. The inlet outlet valve is not opened, the inlet and outlet pipelines are blocked, and the flow impeller is blocked.
b. The motor runs in the wrong direction, and the motor speed is very slow due to lack of phase.
c. The suction pipe is leaking.
d. The pump is not filled with liquid and there is air in the pump chamber.
e. Inlet water supply is insufficient, Suction Lift is too high, and the bottom valve is leaking.
f. The pipeline resistance is too large and the pump type is improperly selected.		 a. Check and remove blockage.
b. Adjust the direction of the Motor and tighten the Motor wiring.
c. Tighten each sealing surface to eliminate air leakage.
d. Fill it with liquid and open the exhaust valve to exhaust the air.
e. Shut down, check and adjust (this phenomenon is likely to occur when using water pipes connected to the grid or with a Suction Lift).
f. Reduce pipeline bends and reselect the pump.
2. Insufficient flow of pipeline centrifugal pump a First examined for 1.
b. Pipes and pump flow channels and impellers are partially blocked, scale accumulates, and valve opening is insufficient.
c. Voltage is low.
d. Impeller wear.		 a. Press 1. to exclude first.
b. Remove the blockage and readjust the valve opening.
c. Voltage stabilization.
d. Replace the impeller.
3. The power of the pipeline centrifugal pump is too large a. Use exceeding the rated flow.
b. Suction Lift is too high.
c. Pump bearing wear.		 a. Adjust Flow and close the Outlet valve.
b. Reduce.
c. Replace the bearings.
4. Noise and vibration of pipeline centrifugal pump a. The pipeline support is unstable.
b. Liquid mixed with gas.
c. Cavitation occurs.
d. Bearing damage.
e. Motor is overloaded and running hot.		 a. Stabilize the pipeline.
b. Increase the suction pressure and exhaust.
c. Reduce the vacuum degree.
d. Replace the bearing.
e. To adjust, press 5.
5. Pipe centrifugal pump motor heats up a. Flow is too large and overloaded.
b. Bump.
c. Motor bearing is damaged.
d. Insufficient Voltage.		 a. Close the outlet valve.
b. Check and rule out.
c. Replace the bearings.
d. Voltage stabilization.
6. Pipeline centrifugal pump leaks a. Mechanical seal wear.
b. The pump body has sand holes or cracks.
c. The sealing surface is uneven.
d. The installation bolts are loose.		 a. Replace.
b. Welding repair or replacement.
c. Trimming.
d. Fasten.

Selection Information Required

Please provide medium, concentration, flow, total head or pressure, temperature, viscosity or solids, voltage, frequency and installation method. DFIN Pump will confirm the suitable model and materials.

Catalog reference: authorized YZJ product data · Model IRG

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