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Yongjia County Marine Water Pump Factory
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    No. 8 Linpu Road, Zhangbao Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province
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ISWD horizontal single-stage low-speed pipeline clean water pump
ISWD horizontal single-stage low-speed pipeline clean water pump
ISWD horizontal single-stage low-speed pipeline clean water pump
ISW, ISWR, and ISWR horizontal single-stage single suction low-speed pipeline clean water pumps are optimized and designed based on the performance pa

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Product details

Model meaning
ISWD卧式单级单吸低转速管道清水泵型号意义

Product Introduction
ISWD, ISWDR, and ISWDR horizontal single-stage single suction low-speed pipeline clean water pumps are designed based on the performance parameters of IS and IR centrifugal pumps, referring to the ISO2858 standard, using a hydraulic model. It is an ideal new generation energy-saving horizontal pump product.

Product Features
1. Smooth operation: The absolute concentricity of the pump shaft and excellent dynamic and static balance of the impeller ensure smooth operation without any vibration.
2. Drip proof: Hard alloy seals made of different materials ensure that there is no leakage during the transportation of different media.
3. Low noise: The water pump under two low-noise bearings runs smoothly, with almost no noise except for weak motor noise.
4. Low failure rate: The structure is simple and reasonable, and high-quality matching is used for key parts, greatly improving the fault free working time of the whole machine.
5. Easy to maintain: replace mechanical seals and bearings, simple and convenient.
6. More land saving: The exit can be arranged in three directions: left, right, and up, which is convenient for pipeline layout and installation, saving space.
7. ISW horizontal pipeline centrifugal pump is used for conveying clean water and other liquids with physical and chemical properties similar to clean water. It is suitable for industrial and urban water supply, high-rise building pressurized water supply, garden sprinkler irrigation, fire protection pressurization, long-distance transportation, HVAC refrigeration cycle, bathroom and other cold and warm water circulation pressurization and equipment matching. The operating temperature T ≤ 80 ℃.
8. The ISWR horizontal hot water pipeline centrifugal pump is widely used in metallurgy, chemical industry, textile, papermaking, as well as hotels, restaurants, and other boiler hot water pressurized circulation transportation and urban heating systems. The ISWR type uses a temperature T ≤ 120 ℃.
9. ISWH horizontal chemical pump is used for conveying liquids that do not contain solid particles, are corrosive, and have a viscosity similar to water. It is suitable for industries such as petroleum, chemical, metallurgical, power, papermaking, food and pharmaceuticals, and synthetic fibers. The operating temperature ranges from -20 ℃ to+120 ℃.
10. ISWB horizontal pipeline oil pump is used to transport oil products such as gasoline, kerosene, diesel, or flammable and late explosive liquids. The temperature of the transported medium is -20 ℃ to+120 ℃.

Product Usage
1. The ISW pump is suitable for industrial and urban water supply and drainage, high-rise building pressurized water supply, garden sprinkler irrigation, fire boosting, long-distance water supply, HVAC refrigeration cycle, bathroom warm water cycle boosting, as well as supporting various water supply equipment and boilers. Used for conveying clean water or other liquids with physical or chemical properties similar to clean water, with a usage temperature not exceeding 85 degrees Celsius℃。
2. The ISWR pump is suitable for metallurgy, chemical industry, textile, wood processing, papermaking, as well as restaurants, bathrooms, hotels, boiler hot water boosting circulation, and urban housing heating circulation, with a usage temperature not exceeding 120 ℃.
3. The ISWD pump is suitable for situations where low environmental noise is required, and the operating temperature should not exceed 100 ℃.

Terms of Use
1. The suction pressure is ≤ 1.0Mpa, or the working pressure of the pump system is ≤ 1.6Mpa, that is, the pump suction inlet pressure+pump head is ≤ 1.6Mpa, and the pump static pressure test pressure is 2.5Mpa. Please specify the system working pressure when ordering. When the working pressure of the pump system is greater than 1.6Mpa, it should be separately stated when ordering, so that the overcurrent components and connecting parts of the pump can be made of cast steel materials during manufacturing.
2. Environmental temperature<40 ℃, relative humidity<95%.
3. The volume content of solid particles in the conveyed medium shall not exceed 0.1% of the unit volume, and the particle size shall be less than 0.2mm
Note: If the medium used is with small particles, please specify when ordering so that wear-resistant mechanical seals can be used.

Scope of Application
1. The high working pressure of the system is 1.6MPa, which means that the pump suction pressure+pump head is ≤ 1.6MPa (if the working pressure of the pump system is greater than 1.6MPa, it should be separately specified when ordering, so that cast steel can be used in the manufacturing of the pump's overcurrent components and connecting components)
2. The conveying medium is clear water or other liquids with physical and chemical properties similar to clear water.
3. Environmental temperature ≤ 40 ℃, altitude ≤ 1000m, relative humidity ≤ 95%.

structural diagram

ISWD卧式单级单吸低转速管道清水泵结构示意图
serial number
name
serial number
name
1
pump body
6
Water blocking ring
2
impeller
7
screw plug
3
impeller nut
8
base
4
mechanical seal
9
motor
5
pump cover

Spectrogram

ISW、ISWR、ISWH卧式单级单吸管道清水泵型谱图


performance parameters

model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
40-200
40
2.2
3.2
4.2
0.61
0.89
1.17
13
12.5
12
31
1450
0.75
2.5
38
40-250
40
2.2
3.2
4.2
0.61
0.89
1.17
20.5
20
18.5
25
1450
1.1
2.5
52
40-250A
40
2.0
2.8
3.7
0.56
0.78
1.03
16.4
16
15
25
1450
0.75
2.5
47
40-250B
40
1.6
2.3
3.4
0.44
0.64
0.94
13.2
13
12
24
1450
0.75
2.5
46
40-160(I)
40
3.8
6.3
7.5
1.06
1.75
2.08
8.5
8.0
7.5
47
1450
0.75
2.5
43
40-200(I)
40
3.8
6.3
7.5
1.06
1.75
2.08
13.1
12.5
12
40
1450
0.75
2.5
45
40-200(I)A
40
3.3
5.5
6.5
0.92
1.53
1.81
10
9.5
9
39
1450
0.75
2.5
44
40-250(I)
40
3.8
6.3
7.5
1.06
1.75
2.08
20.5
20
19.5
32
1450
1.5
2.5
54
40-250(I)A
40
3.4
5.6
6.7
0.94
1.56
1.86
16.4
16
15.6
32
1450
1.1
2.5
49
40-250(I)B
40
3.1
5.1
6.1
0.86
1.42
1.69
13.2
13
12.5
30
1450
0.75
2.5
42
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
50-160
50
3.8
6.3
7.5
1.06
1.75
2.08
8.5
8.0
7.5
47
1450
0.75
2.5
42
50-200
50
3.8
6.3
7.5
1.06
1.75
2.08
13.1
12.5
12
40
1450
0.75
2.5
48
50-200A
50
3.3
5.5
6.5
0.92
1.53
1.81
10
9.5
9
39
1450
0.55
2.5
46
50-250
50
3.8
6.3
7.5
1.06
1.75
2.08
20.5
20
19.5
32
1450
1.5
2.5
58
50-250A
50
3.4
5.6
6.7
0.94
1.56
1.86
16.4
16
15.6
32
1450
1.1
2.5
50
50-250B
50
3.1
5.1
6.1
0.86
1.42
1.69
13.2
13
12.5
30
1450
0.75
2.5
49
50-160(I)
50
7.5
12.5
15
2.08
3.47
4.17
8.8
8
7.2
59
1450
0.75
2.8
46
50-200(I)
50
7.5
12.5
15
2.08
3.47
4.17
13.2
12.5
11.8
54
1450
1.1
2.8
52
50-200(I)A
50
6.8
11.3
13.5
1.89
3.14
3.75
10.7
10.1
9.6
53
1450
0.75
2.8
48
50-250(I)
50
7.5
12.5
15
2.08
3.47
4.17
21
20
19.4
45
1450
2.2
2.8
73
50-250(I)A
50
7.0
11.7
14.1
1.94
3.25
3.92
18.4
17.6
17
44
1450
1.5
2.8
65
50-250(I)B
50
6.1
10.2
12.3
1.69
2.83
3.42
14.1
13.4
13.0
43
1450
1.1
2.8
60
50-315(I)
50
7.5
12.5
15
2.08
3.47
4.17
32.3
32
31.7
36
1450
4
2.8
89
50-315(I)A
50
7
11.7
14
1.94
3.25
3.92
28.1
28
27.6
36
1450
3
2.8
84
50-315(I)B
50
6.1
10.2
12.1
1.69
2.81
3.36
21.2
21
20.8
34
1450
3
2.8
82
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
65-160
65
7.5
12.5
15
2.08
3.47
4.17
8.8
8
7.2
59
1450
0.55
2.8
46
65-200
65
7.5
12.5
15
2.08
3.47
3.75
13.2
12.5
11.8
54
1450
1.1
2.8
52
65-200A
65
6.8
11.3
13.5
1.89
3.14
3.75
10.7
10.1
9.6
53
1450
0.75
2.8
48
65-250
65
7.5
12.5
15
2.08
3.47
4.17
21
20
19.4
45
1450
2.2
2.8
76
65-250A
65
7.0
11.7
14.1
1.94
3.25
3.92
18.4
17.6
17
44
1450
1.5
2.8
68
65-250B
65
6.1
10.2
12.3
1.69
2.83
3.42
14.1
13.4
13.0
43
1450
1.1
2.8
63
65-315
65
7.5
12.5
15
2.08
3.47
4.17
32.3
32
31.7
36
1450
4
2.8
89
65-315A
65
7
11.7
14
1.94
3.25
3.92
28.1
28
27.6
36
1450
3
2.8
85
65-315B
65
6.1
10.1
12.1
1.69
2.81
3.36
21.2
21
20.8
34
1450
3
2.8
82
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
65-125(I)
65
15
25
30
4.17
6.94
8.33
5.6
5
4.5
70
1450
0.75
2.8
49
65-125(I)A
65
13.1
21.8
26.1
3.05
6.05
7.25
4.3
3.8
3.4
65
1450
0.75
2.8
48
65-160(I)
65
15
25
30
4.17
6.94
8.33
9
8
7.2
68
1450
1.1
2.8
54
65-160(I)A
65
13.0
21.6
25.9
3.61
6.0
7.19
6.7
6.0
5.4
65
1450
0.75
2.8
48
65-200(I)
65
15
25
30
4.17
6.94
8.33
13.2
12.5
11.8
64
1450
2.2
2.8
71
65-200(I)A
65
14.0
23.3
27.9
3.89
6.47
7.75
11.5
10.9
10.2
63
1450
1.5
2.8
62
65-250(I)
65
15
25
30
4.17
6.94
8.33
21
20
18.8
59
1450
3
2.8
85
65-250(I)A
65
13.3
22.2
26.6
3.69
6.17
7.39
16.6
15.8
14.8
58
1450
2.2
2.8
80
65-250(I)B
65
11.9
19.8
23.8
3.31
5.5
6.61
13.2
12.6
11.8
57
1450
1.5
2.8
74
65-315(I)
65
15
25
30
4.17
6.94
8.33
32.5
32
31.5
50
1450
5.5
2.8
120
65-315(I)A
65
14
23
28
3.89
6.39
7.78
28.3
27.9
27.4
50
1450
4
2.8
110
65-315(I)B
65
12.1
20.2
24.2
3.36
5.61
6.75
21.3
21
30.6
49
1450
3
2.8
100
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
80-125
80
15
25
30
4.17
6.94
8.33
5.6
5
4.5
70
1450
0.75
2.8
48
80-125A
80
13.1
21.8
26.1
3.05
6.05
7.25
4.3
3.8
3.4
65
1450
0.75
2.8
45
80-160
80
15
25
30
4.17
6.94
8.33
9
8
7.2
68
1450
1.1
2.8
55
80-160A
80
13.0
21.6
25.9
3.61
6.0
7.19
6.7
6.0
5.4
65
1450
0.75
2.8
51
80-200
80
15
25
30
4.17
6.94
8.33
13.2
12.5
11.8
64
1450
2.2
2.8
72
80-200A
80
14.0
23.3
27.9
3.89
6.47
7.75
11.5
10.9
10.2
63
1450
1.5
2.8
64
80-250
80
15
25
30
4.17
6.94
8.33
21
20
18.8
59
1450
3
2.8
89
80-250A
80
13.3
22.2
26.6
3.69
6.17
7.39
16.6
15.8
14.8
58
1450
2.2
2.8
85
80-250B
80
11.9
19.8
23.8
3.31
5.5
6.61
13.2
12.6
11.8
57
1450
1.5
2.8
78
80-315
80
15
25
30
4.17
6.94
8.33
32.5
32
31.5
50
1450
5.5
2.8
130
80-315A
80
14
23
28
3.89
6.39
7.78
28.3
27.9
27.4
50
1450
4.0
2.8
102
80-315B
80
12.1
20.2
24.3
3.36
5.61
6.75
21.3
21
20.6
49
1450
3
2.8
95
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
80-100(I)
80
30
50
60
8.33
13.89
16.67
3.5
3
2.5
73
1450
0.75
3.0
58
80-125(I)
80
30
50
60
8.33
13.89
16.67
6
5
4
73
1450
1.1
3.0
61
80-125(I)A
80
26.8
44.6
53.5
7.44
12.4
14.9
4.8
4
3.2
63
1450
2.2
3.0
61
80-160(I)
80
30
50
60
8.33
13.89
16.67
9.2
8
6.8
73
1450
2.2
3.0
82
80-160(I)A
80
26.7
44.5
53.4
7.42
12.36
14.83
7.3
6.3
5.4
71
1450
1.5
3.0
74
80-200(I)
80
30
50
60
8.33
13.89
16.67
13.5
12.5
11.8
72
1450
3.0
3.0
97
80-200(I)A
80
26.7
44.6
53.5
7.42
12.36
14.83
10.7
9.9
9.4
71
1450
2.2
3.0
93
80-250(I)
80
30
50
60
8.33
13.89
16.67
21.3
20
19
66
1450
5.5
3.0
134
80-250(I)A
80
28
46.7
56
7.78
12.97
15.56
18.6
17.4
16.6
65
1450
4.0
3.0
106
80-250(I)B
80
24.2
40.4
48.5
6.72
11.22
13.47
13.9
13.1
12.4
63
1450
3.0
3.0
100
80-315(I)
80
30
50
60
8.33
13.89
16.67
34
32
30
61
1450
11.0
3.0
217
80-315(I)A
80
28
46.7
56
7.78
12.97
15.56
29.6
27.9
26.1
61
1450
7.5
3.0
180
80-315(I)B
80
24.3
40.5
48.6
6.72
11.22
13.47
22.3
21
19.1
60
1450
5.5
3.0
166
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
100-100
100
30
50
60
8.33
13.89
16.67
3.5
3
2.5
73
1450
0.75
3.0
62
100-125
100
30
50
60
8.33
13.89
16.67
6
5
4
73
1450
1.1
3.0
70
100-125A
100
26.8
44.6
53.5
7.44
12.4
14.9
4.8
4
3.2
63
1450
1.1
3.0
68
100-160
100
30
50
60
8.33
13.89
16.67
9.2
8
6.8
73
1450
2.2
3.0
87
100-160A
100
26.7
44.5
53.4
7.42
12.36
14.83
7.3
6.3
5.4
71
1450
1.5
3.0
79
100-200
100
30
50
60
8.33
13.89
16.67
13.5
12.5
11.8
72
1450
3.0
3.0
100
100-200A
100
26.7
44.6
53.5
7.42
12.36
14.83
10.7
9.9
9.4
71
1450
2.2
3.0
90
100-250
100
30
50
60
8.33
13.89
16.67
21.3
20
19
66
1450
5.5
3.0
140
100-250A
100
28
46.7
56
7.78
12.97
15.56
18.6
17.6
16.6
65
1450
4.0
3.0
112
100-250B
100
24.2
40.4
48.5
6.72
11.22
13.47
13.9
13.1
12.4
63
1450
3.0
3.0
105
100-315
100
30
50
60
8.33
13.89
16.67
34
32
30
61
1450
11.0
3.0
225
100-315A
100
28
46.7
56
7.78
12.97
15.56
29.6
27.9
26.1
61
1450
7.5
3.0
180
100-315B
100
24.3
40.5
48.6
6.72
11.22
13.47
22.3
21
19.1
60
1450
5.5
3.0
165
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
100-125(I)
100
60
100
120
16.67
27.78
33.33
6.5
5
4
78
1450
2.2
3.0
95
100-125(I)A
100
52.2
87.1
104
14.5
24.2
28.9
4.3
3.8
3.4
76
1450
1.5
3.0
87
100-160(I)
100
60
100
120
16.7
27.78
33.33
10
8
7
78
1450
4.0
3.0
118
100-160(I)A
100
52.2
87.1
104
14.5
24.2
28.9
7.3
6.3
5.4
76
1450
3.0
3.0
113
100-200(I)
100
60
100
120
16.67
27.78
33.33
14.0
12.5
11
75
1450
5.5
3.0
148
100-200(I)A
100
51.7
86.1
103
14.36
23.92
28.61
10.8
9.3
8.2
73
1450
4.0
3.0
123
100-250(I)
100
60
100
120
16.67
22.78
33.33
21.5
20
18.5
74
1450
11.0
3.0
208
100-250(I)A
100
56
93.3
112
15.56
25.92
31.11
18.7
17.4
16.1
73
1450
7.5
3.0
165
100-250(I)B
100
52.2
87
104
14.5
24.17
28.89
16
15
14
72
1450
5.5
3.0
149
100-315(I)
100
60
100
120
16.67
22.78
33.33
33.5
32
30.5
71
1450
15.0
3.0
234
100-315(I)A
100
55.0
91.0
110.0
15.28
25.28
30.56
28
27
25.7
71
1450
11.0
3.0
213
100-315(I)B
100
47
79.0
95
13.06
21.94
26.39
21
20
19
70
1450
7.5
3.0
165
100-400(I)
100
60
100
120
16.67
22.78
33.33
52
50
48.5
65
1450
30.0
3.0
375
100-400(I)A
100
56.4
94
113
15.67
26.11
31.39
46
44
43
65
1450
22.0
3.0
295
100-400(I)B
100
52.3
87
105
14.53
24.17
29.17
39
38
37
64
1450
18.5
3.0
257
100-400(I)C
100
48.6
81
97
13.54
22.56
26.94
34
32.8
32
62
1450
15.0
3.0
239
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
125-125
125
48
80
96
13.3
22.2
26.7
5.5
5
4.3
76
1450
2.2
3.0
148
125-125A
125
43
71.5
66
11.6
19.9
13.9
4.4
4
3.4
75
1450
1.5
3.0
125
125-160
125
48
80
96
13.3
22.2
26.7
9
8
7
74
1450
3.0
3.0
205
125-160A
125
42
69.3
83
11.9
19.3
23
6.8
6
5.3
73
1450
2.2
3.0
165
125-200
125
48
80
96
13.3
23.2
26.7
13.8
12.5
11.5
73
1450
5.5
3.0
249
125-200A
125
45
75
90
12.5
20.8
25
12
11
10
72
1450
4.0
3.0
237
125-250
125
48
80
96
13.3
22.2
26.7
22
20
18.3
72
1450
7.5
2.8
220
125-250A
125
45
75
90
12.5
20.8
25
19
17.5
16
71
1450
7.5
2.8
210
125-250B
125
41.5
69
83
11.5
11.2
23
16.3
15
13.8
70
1450
5.5
2.8
195
125-315
125
48
80
96
13.3
22.2
26.7
33.3
32
29.8
67
1450
15.0
2.5
300
125-315A
125
45
75
90
12.5
20.8
25
29.3
27.5
26
66
1450
11.0
2.5
282
125-315B
125
43
72
96
11.9
20
23.9
26.5
25
23.8
65
1450
11.0
2.5
282
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
150-200
150
96
160
192
26.7
44.4
53.3
13.8
12.5
11.5
77
1450
11
5.5
305
150-200A
150
90
150
180
25
41.7
50
12
11
10
76
1450
7.5
5.5
276
150-250
150
96
160
192
26.7
44.4
53.3
22
20
18.3
75
1450
15
5.0
310
150-250A
150
90
150
180
25
41.7
50
19
17.5
16
74
1450
11
5.5
303
150-250B
150
84
140
168
23.3
39
46.7
16.3
15
13.8
73
1450
7.5
5.5
281
150-315
150
96
160
192
26.7
44.4
53.3
33.3
32
29.8
70
78
73
1450
30
2.5
410
150-315A
150
90
150
180
25
41.7
50
29.3
27.5
26
69
77
77
1450
22
3.5
335
150-315B
150
84
140
168
23.3
39
46.7
25
24
21
76
1450
18.5
3.5
315
150-400
150
96
160
192
26.7
44.4
53.3
53
50
44
68
75
71
1450
45
3.5
490
150-400A
150
90
150
180
25
41.7
50
46.6
44
38.3
67
74
70
1450
37
3.5
454
150-400B
150
84
140
168
23.3
39
46.7
40
38
33
73
1450
30
3.5
435
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
150-200(I)
150
120
200
240
33.3
55.6
66.7
13.8
12.5
11.5
65
76
74
1450
15
4.5
310
150-200(I)A
150
112
187
224
31.1
51.9
62.2
12
11
10
64
75
73
1450
11
4.5
303
150-250(I)
150
140
200
260
38.9
55.6
72.2
22
20
18.3
75
1450
18.5
5.0
340
150-250(I)A
150
131
187
243
36.4
51.9
67.5
19
17.5
16
74
1450
15
5.5
325
150-250(I)B
150
121
173
225
33.5
48.1
62.5
16.3
15
13.8
73
1450
11
5.5
300
150-315(I)
150
140
200
260
38.9
55.6
72.2
33.3
32
29.8
70
78
73
1450
30
2.5
410
150-315(I)A
150
131
187
243
36.4
51.9
67.5
29.3
27.5
26
69
77
77
1450
22
3.5
335
150-315(I)B
150
121
173
225
33.5
48.1
62.5
25
24
21
76
1450
18.5
3.5
315
150-400(I)
150
140
200
260
38.9
55.6
72.2
53
50
44
68
75
71
1450
45
3.5
490
150-400(I)A
150
131
187
243
36.4
51.9
67.5
46.6
44
38.3
67
74
70
1450
37
3.5
454
150-400(I)B
150
121
173
225
33.5
48.1
62.5
40
38
33
73
1450
30
3.5
435
150-500(I)
150
140
200
260
38.9
55.6
72.2
87
80
73
73
1450
90
3.5
1215
150-500(I)A
150
131
187
243
36.4
51.9
67.5
76
70
84
73
1450
75
3.5
1108
150-500(I)B
150
121
173
225
33.5
48.1
62.5
65
60
55
73
1450
55
3.5
920
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
200-200
200
140
200
260
38.9
55.6
72.2
13.8
12.5
10.6
68
78
78
1450
15
3.0
265
200-200A
200
125
179
232.5
34.7
49.7
64.6
11
10
8.5
66
76
76
1450
11
3.0
244
200-250
200
140
200
260
21.8
20
17
21.8
20
17
73
79
77
1450
18.5
3.0
305
200-250A
200
129
184.4
240
18.5
17
14.4
18.5
17
14.4
72
78
76
1450
15
3.0
267
200-250B
200
117
167
217.5
15.2
14
12
15.2
14
12
76
1450
11
3.0
246
200-315
200
140
200
260
33.8
32
28
33.8
32
28
70
78
78
1450
30
3.5
417
200-315A
200
131
189
243
29.5
28
24.5
29.5
28
24.5
69
77
77
1450
22
3.5
342
200-315B
200
121
173
225
25
24
21
25
24
21
76
1450
18.5
3.5
322
200-400
200
140
200
260
53
50
44
53
50
44
68
75
71
1450
45
3.5
498
200-400A
200
131
187
243
46.6
44
38.3
46.6
44
38.3
67
74
70
1450
37
3.5
462
200-400B
200
122
174
226.5
40
38
33
40
38
33
73
1450
30
3.5
443
200-400C
200
112
160
208
34
32
28
34
32
28
71
1450
22
3.5
373
200-500
200
140
200
260
38.9
55.6
72.2
87
80
73
73
1450
90
3.5
1215
200-500A
200
131
187
243
36.4
51.9
67.5
76
70
84
73
1450
75
3.5
1108
200-500B
200
121
173
225
33.5
48.1
62.5
65
60
55
73
1450
55
3.5
920
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
200-200(I)
200
280
400
520
77.8
111.1
144
13.4
12.5
10.5
70
80
79
1450
22
4.0
382
200-200(I)A
200
250
358
465
69.4
90.4
129.2
10.7
10
8.5
68
73
77
1450
18.5
4.0
346
200-250(I)
200
280
400
520
77.8
111.1
144
22.2
20
14
75
80
72
1450
30
4.0
475
200-250(I)A
200
250
358
465
69.4
99.4
129.2
18
16
11.2
73
78
70
1450
22
4.0
405
200-250(I)B
200
226
322
419
62.8
89.4
116.4
14.4
13
7.3
70
75
67
1450
18.5
4.0
387
200-315(I)
200
280
400
520
77.8
111.4
144
36
32
26
73
80
75
1450
55
4.0
675
200-315(I)A
200
262
374
486
72.8
103.9
135
31.5
28
23
72
79
74
1450
45
4.0
560
200-315(I)B
200
242
346
450
67.3
96.1
125
27
24
19.5
78
1450
37
4.0
535
200-400(I)
200
280
400
520
77.8
111.4
144
54.5
50
39
75
81
77
1450
75
4.0
830
200-400(I)A
200
262
374
486
72.8
103.9
135
48
44
34
80
1450
75
4.0
830
200-400(I)B
200
242
346
450
67.2
96.1
125
41.4
38
29.6
78
1450
55
5.0
685
200-400(I)C
200
224
320
416
62.2
88.9
115.6
34.9
32
25
76
1450
45
5.0
580
200-500(I)
200
280
400
520
77.8
111.4
144
87
80
73
73
1450
132
3.5
1300
200-500(I)A
200
262
374
486
72.8
103.9
135
76
70
84
73
1450
110
3.5
1150
200-500(I)B
200
242
346
450
67.2
96.1
125
65
60
55
73
1450
90
3.5
1050
200-500(I)C
200
224
320
416
62.2
88.9
115.6
55
50
46
73
1450
75
3.5
930
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
250-250
250
350
550
650
97.2
152.8
180.5
22
20
16
78
82
81
1450
45
5.0
620
250-250A
250
300
500
600
83.3
139
166.7
18.3
17
14
76
80
80
1450
37
5.0
550
250-235
250
300
500
600
83.3
139
166.7
14
12.5
11
73
78
70
1480
22
4.5
410
250-300
250
300
500
600
83.3
139
166.7
22
20
16
78
1480
37
4.5
550
250-315
250
350
550
650
97.2
152.8
180.5
34
32
28
76
80
79
1450
75
5.5
890
250-315A
250
300
500
600
83.3
139
166.7
29.5
28
24
74
78
77
1450
55
5.5
690
250-315B
250
260
450
520
72.2
125
144.4
25
24
20
70
74
72
1450
45
5.5
620
250-400
250
300
500
600
83.3
139
166.7
54.5
50
39
72
1480
90
4.5
1530
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg
300-235
300
480
720
900
133.3
200
250
20
18
15.5
77
81
74
970
55
5.0
1120
300-235A
300
438
607
821
121.7
182.5
228.1
16.5
15
13
75
79
72
970
45
5.0
1030
300-235B
300
400
600
750
111.1
167.0
208.3
14
12.5
11
73
77
70
970
37
5.0
890
300-300
300
480
720
900
133.3
200
250
31
28
25
77
81
77
970
75
5.0
1350
300-300A
300
444
666
833
123.3
185
231.4
26.5
24
21.5
76
80
76
970
75
5.0
1350
300-300B
300
415
623
779
115.3
173.1
261.4
23
21
18.5
79
970
55
5.0
1170
300-380
300
480
720
900
133.3
200
250
48
44
34
84
970
132
5.0
1900
300-380A
300
444
666
833
123.3
185
231.4
41.4
38
30
80
970
110
5.0
1700
300-380B
300
409
614
767
113.6
170.6
213.1
35
32
25
78
970
90
5.0
1530
300-235(I)
300
718
1080
1345
199.4
300
373.6
44.6
40
34.6
82
1450
160
5.5
1680
300-235(I)A
300
642
965
1203
178.3
268.1
334.2
35.7
32
27.7
80
1450
132
5.5
1400
model
caliber
traffic
head
efficiency
speed
Motor power
Required cavitation allowance
weight
mm
m3/h
L/S
m
%
r/min
KW
(NPSH)r
Kg

Installation Instructions
1. Before installation, carefully check whether there are any hard objects inside the pump body to avoid damaging the impeller and pump body during operation.
2. During installation, pipeline management should not be added to the pump to prevent deformation and affect normal operation.
3. Tighten the anchor bolts to prevent vibration during start-up from affecting the performance of the pump.
4. Install regulating valves on the inlet and outlet pipelines of the pump, and install pressure gauges near the pump outlet to control the pump's operation within rated conditions and ensure its normal use.
5. If a check valve is installed in the discharge pipeline, it should be installed outside the gate valve.
6. The installation methods of pumps are divided into rigid connection installation and flexible connection installation.

Attachment installation method

1Hard connection
2、 Flexible connection
1
Ball valve
2
Imported flexible joint
3
Imported straight pressure tapping pipe
4
Export gate valve
1
Ball valve
2
Imported flexible joint
3
Imported straight pressure tapping pipe
4
Export gate valve
5
Export flexible joint
6
Export straight pipe pressure tapping pipe
7
pump
8
Pump base
5
Export flexible joint
6
Export straight pipe pressure tapping pipe
7
pump
8
Pump base
9
Basic Stage
9
Vibration isolator
10
Basic Stage

Start and Stop
（1） Preparation before starting
1. Pull and rotate the motor fan blades by hand, and the impeller should have no jamming or grinding phenomenon, and rotate flexibly.
2. Open the inlet valve, open the exhaust valve to fill the entire pump chamber with liquid, and then close the exhaust valve.
3. Manually rotate the pump shaft to allow lubricant to enter the mechanical seal end face.
4. Tap the motor to confirm if the steering is correct.
（2） Start up and operation
1. Fully open the inlet valve and close the outlet pipeline valve.
2. Connect the power supply, gradually open the valve on the discharge pipeline when the pump reaches normal speed, and adjust it to the desired working condition.
3. Pay attention to the instrument readings and check if the shaft seal leakage is normal. The mechanical seal leakage should be ≤ 3 drops/minute. Check if the temperature rise at the motor and bearing is ≤ 70 ℃. If any abnormal situation is found, it should be dealt with in a timely manner
（3） Parking
1. Gradually close the valve of the discharge pipeline and cut off the power supply.
2. Close the inlet valve.
3. If the ambient temperature is below 0 ℃, the liquid inside the pump should be drained to prevent freezing and cracking.
4. If the pump is not in use for a long time, it should be disassembled, cleaned, and kept under management.

Maintenance and Care
（1） Maintenance and upkeep during operation
1. The imported pipeline must be filled with liquid, and the pump is prohibited from running for a long time in a cavitation state.
2. Regularly check the motor current value and ensure it does not exceed the rated current of the motor.
3. After long-term operation of the pump, if the noise and vibration of the unit increase due to mechanical wear, it should be stopped for inspection, and vulnerable parts can be replaced if necessary. The overhaul period of the unit is generally one year.
（2） Mechanical seal maintenance and upkeep
1. Mechanical seal lubrication should be clean and free of solid particles.
2. Mechanical seals are strictly prohibited from working under dry grinding conditions.
3. Before starting, the pump (motor) should be turned a few times to avoid sudden starting causing damage to the sealing ring.
4. The allowable deviation for seal leakage is 3 drops/minute, otherwise maintenance should be carried out.

Vulnerable parts (mechanical seals and bearings)

Motor power
bearing
mechanical seal
0.18KW、0.12KW
201
104-12
0.25KW、0.37KW
202
104-14
0.55KW、0.75KW、1.1KW-2
204
109-18
1.1KW-4、 1.5KW、2.2KW-2
205
109-20
2.2KW-4、3KW
206
109-25
4KW
306
109-25
5.5KW、7.5KW-2、7.5KW-4
308
109-25
11KW、15KW、 18.5KW-2、22KW-2
309
109-35
18.5KW-4、22KW-4
311
109-45
30KW、37KW-2
312
109-45
37KW-4、45KW
313
109-45
55KW、75KW-2、90KW-2
314
109-55

Reference Table for Pipeline Losses

Pipe diameter mm
Flow rate (L/S)
1
2
4
6
8
10
25
3.2
13
38
3.5
14
15
15
20
50
0.8
3.1
13
29
25
30
65
0.8
3.2
7.1
13
20
40
50
75
0.4
1.6
3.3
5.9
9.6
21.6
60
70
100
0.4
0.8
1.3
2.1
6.8
8.6
13
19.
80
90
125
0.2
0.4
0.6
1.3
2.7
4.1
5.9
10.
100
110
150
0.1
0.2
0.5
1.1
1.6
2.3
4.2
6.4
9.4
120
130
175
0.1
0.2
0.5
0.7
1.0
1.9
2.9
4.3
5.8
7.7
9.6
140
160
200
0.1
0.2
0.3
0.5
0.9
1.5
2.1
2.9
3.7
4.7
6.1
7.2
8.5
180
200
250
0.1
0.1
0.2
0.3
0.5
0.7
0.9
1.2
1.5
1.9
2.3
2.8
3.3
3.7
4.9
5.2
300
0.1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.9
1.1
1.3
1.5
2.0
2.4
3.0

Valve and bent pipe converted to straight pipe length

category
Equivalent to multiple of straight pipe diameter
remark
Fully open gate valve
12
Unopened double
Standard bend pipe
25
check valve
100
foot valve
100
Partial blockage doubles

The flow limit of a certain pipeline is certain

Pipeline diameter
traffic
flow velocity
Pipeline diameter
traffic
flow velocity
mm
L/S
m/s
mm
L/S
m/s
25
1
2.04
125
30.0
2.44
38
2.5
1.69
150
43.0
2.45
50
4.17
2.12
175
60.0
2.49
65
6.67
2.01
200
83.3
2.69
75
10.0
2.26
250
133.3
2.72
100
18.4
2.33
300
192.0
2.71

Fault causes and troubleshooting methods

Fault phenomenon
Possible causes
exclusion method
1. The water pump is not producing water
a、 The import and export valves are not open, the inlet and outlet pipelines are blocked, and the impeller of the flow channel is blocked.
b、 The motor is running in the wrong direction and has a slow speed due to phase loss.
c、 The suction pipe is leaking air.
d、 The pump is not filled with liquid and there is air inside the pump chamber.
e、 Insufficient imported water supply, high suction, and leaking bottom valve.
f、 Excessive pipeline resistance and improper pump selection.
a、 Check and remove blockages
b、 Adjust the motor direction and strengthen the motor wiring
c、 Tighten all sealing surfaces and eliminate air
d、 Open the pump cover or open the exhaust valve to exhaust the air
e、 Shutdown inspection and adjustment (this phenomenon is prone to occur when using grid connected water pipes and suction pumps)
f、 Reduce pipeline bends and reselect pumps.
2. Insufficient water pump flow
a、 First, check the cause according to 1.
b、 Pipeline, pump impeller blockage, scale deposition, and insufficient valve opening
c、 Low voltage
d、 Impeller wear
a、 First, press 1. Exclude
b、 Remove the obstruction and readjust the valve opening.
c、 Stabilize voltage.
d、 Replace the impeller.
3. Excessive power
a、 Exceeding the rated flow usage.
b、 The suction distance is too high.
c、 The pump bearings are worn.
a、 Adjust the flow rate and turn down the outlet valve.
b、 reduce
c、 Replace the impeller
4. Noise vibration
a、 The pipeline support is unstable.
b、 Liquid mixed with gas.
c、 Generate cavitation.
d、 The bearing is damaged.
e、 The motor is running under overload and overheating.
a、 Stable pipeline
b、 Increase suction pressure and exhaust
c、 Reduce the vacuum degree
d、 replace the bearing
e、 Press 5 to adjust.
5. Motor overheating
a、 Excessive traffic and overloaded operation.
b、 Rubbing.
c、 The motor bearings are damaged.
d、 Insufficient voltage.
a、 Close the outlet valve.
b、 Check and eliminate.
c、 Replace the bearings.
d、 Stabilize voltage.
6. Water pump leakage
a、 Mechanical seal wear.
b、 The water pump body has sand holes or cracks.
c、 The sealing surface is uneven.
d、 Loosen the installation bolts.
a、 replace
b、 Welding repair or replacement.
c、 Repair.
d、 Durable.


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