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Shanghai Kaiquan Pump Manufacturing Co., Ltd

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D-type pump series single suction segmented centrifugal pump

NegotiableUpdate on 05/16
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D-type pump series single suction segmented centrifugal pump

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D-type pump series single suction segmented centrifugal pump

1D-type pump series single suction segmented centrifugal pumpCharacteristics, principles, and images:

The D-type pump is a single suction segmented centrifugal pump used for transporting clean water and liquids with physical and chemical properties similar to water. The head of the D-type multi-stage pump series single suction segmented centrifugal pump is H23 to 153.6 meters, and the flow rate is 12.6 to 39.6 cubic meters. The high temperature of the liquid should not exceed 80 ° C, and it is widely used for mine drainage, factory and urban water supply. Currently, the main D-type pumps produced are: 50D8, 80D12, 100D16, and 125D25.

IID-type pump series single suction segmented centrifugal pumpModel meaning

IIID-type pump series single suction segmented centrifugal pumpProduct Structure Description
The D-type water pump is a multi-stage segmented type, with its suction port located on the inlet section in a horizontal direction, and its discharge port vertically upward on the water section. Its head can be increased or decreased according to the needs of use. Whether the water pump is well assembled or not has a significant impact on its performance, especially the outlet of each impeller and the inlet and outlet center of the guide vanes. Any slight deviation will reduce the flow rate and head of the water pump, resulting in poor efficiency. Therefore, attention must be paid during maintenance and assembly.
The main components of a D-type water pump include: inlet section, middle section, outlet section, impeller, guide vane baffle, outlet section guide vane, shaft, sealing ring, balance ring, shaft sleeve, tail cover, and bearing body.
The inlet section, middle section, guide vane baffle, outlet guide wing, outlet section, and tail cover are all made of cast iron, forming the working chamber of the pump together.
The impeller is made of high-quality cast iron and has blades inside. The liquid enters on one side along the axial direction. Due to the unequal pressure on the impeller before and after, there must be axial force, which is borne by the balance plate. The impeller is manufactured through static balance testing.
The shaft is made of high-quality carbon steel, with an impeller installed in the middle, fixed on the shaft with keys, shaft sleeves, and shaft sleeve nuts. One end of the shaft is equipped with a coupling component, which is directly connected to the motor.
The sealing ring is made of cast iron to prevent high-pressure water from leaking back into the inlet section of the water pump. It is fixed on the inlet and middle sections respectively and is a vulnerable part. After wear, it can be replaced with spare parts.
The balance ring is made of cast iron and fixed on the outlet section. It forms a balance device together with the balance.
The balance plate is made of wear-resistant cast iron and is installed on the shaft, located between the water outlet section and the tail cover, to balance axial forces.
The shaft sleeve is made of cast iron and is located at the packing chamber. It is used to fix the impeller and protect the pump shaft. It is a vulnerable part and can be replaced with spare parts after wear.
The bearing is a single row radial ball bearing lubricated with calcium based grease.
The packing plays a sealing role, preventing air from entering and a large amount of liquid from leaking out. The packing seal consists of a packing chamber on the inlet section and tail cover, a packing gland, a packing ring, and packing, etc. A small amount of high-pressure water flows into the packing chamber to act as a water seal. The tightness of the filler must be appropriate, neither too tight nor too loose, based on the ability of the liquid to seep out drop by drop. If the packing is too tight, the shaft sleeve is prone to heating and consumes power. The packing is too loose, which reduces the efficiency of the water pump due to liquid loss.

4D-type pump series single suction segmented centrifugal pumpPerformance Table of 50D8 Centrifugal Water Pump

series Traffic Q Total Head
H
(meters)		 number of rotations
n
(Conversion/minute)		 Power N (kW) efficiency
η
%		 cavitation
margin
H (meters)		 impeller
diameter
(millimeters)
M3/hour l / s shaft power Motor Power
2 12.6
18
23.4		 3.5
5
6.5		 23
19
13		 2950 1.43
1.5
1.48		 2.2 55
62
56		 2.3 105
3 12.6
18
23.4		 3.5
5
6.5		 34.5
28.5
19.5		 2950 2.145
2.25
2.22		 3 55
62
56		 2.3 105
4 12.6
18
23.4		 3.5
5
6.5		 46
38
26		 2950 2.86
3
2.96		 4 55
62
56		 2.3 105
5 12.6
18
23.4		 3.5
5
6.5		 57.5
47.5
32.5		 2950 3.575
3.75
3.7		 5.5 55
62
56		 2.3 105
6 12.6
18
23.4		 3.5
5
6.5		 66
57
39		 2950 4.29
4.5
4.44		 5.5 55
62
56		 2.3 105
7 12.6
18
23.4		 3.5
5
6.5		 80.5
66.5
45.5		 2950 5.005
5.25
5.18		 7.5 55
62
56		 2.3 105
8 12.6
18
23.4		 3.5
5
6.5		 92
76
52		 2950 5.72
6
5.92		 7.5 55
62
56		 2.3 105
9 12.6
18
23.4		 3.5
5
6.5		 103.5
85.5
58.5		 2950 6.435
6.75
6.66		 7.5 55
62
56		 2.3 105
10 12.6
18
23.4		 3.5
5
6.5		 115
95
65		 2950 7.15
7.5
7.4		 11 55
62
56		 2.3 105
11 12.6
18
23.4		 3.5
5
6.5		 126.5
104.5
71.5		 2950 7.865
8.25
8.14		 11 55
62
56		 2.3 105
12 12.6
18
23.4		 3.5
5
6.5		 138
114
78		 2950 8.58
9
8.88		 11 55
62
56		 2.3 105

5D-type pump series single suction segmented centrifugal pumpPerformance Table of 80D12 Centrifugal Water Pump


series		 Traffic Q Total Head
H
(meters)		 number of rotations
n
(Conversion/minute)		 Power N (kW) efficiency
η
%		 cavitation
margin
H (meters)		 impeller
diameter
(millimeters)
M3/hour l / s shaft power Motor Power
2 25.2
32.4
39.6		 7
9
11		 25.6
22.7
17.6		 2950 2.52
2.68
2.72		 3 69.5
75
69.5		 2.8 110
3 25.2
32.4
39.6		 7
9
11		 38.4
34.05
26.4		 2950 3.78
4.02
4.08		 5.5 69.5
75
69.5		 2.8 110
4 25.2
32.4
39.6		 7
9
11		 51.2
45.4
35.2		 2950 5.04
5.36
5.44		 7.5 69.5
75
69.5		 2.8 110
5 25.2
32.4
39.6		 7
9
11		 64
56.75
44		 2950 6.3
6.7
6.8		 7.5 69.5
75
69.5		 2.8 110
6 25.2
32.4
39.6		 7
9
11		 76.8
68.1
52.8		 2950 7.56
8.04
8.16		 11 69.5
75
69.5		 2.8 110
7 25.2
32.4
39.6		 7
9
11		 89.6
79.45
61.6		 2950 8.82
9.38
9.52		 11 69.5
75
69.5		 2.8 110
8 25.2
32.4
39.6		 7
9
11		 102.4
90.8
70.4		 2950 10.08
10.72
10.28		 15 69.5
75
69.5		 2.8 110
9 25.2
32.4
39.6		 7
9
11		 115.2
102.15
79.2		 2950 11.34
11.06
12.24		 15 69.5
75
69.5		 2.8 110
10 25.2
32.4
39.6		 7
9
11		 128
113.5
88		 2950 12.6
13.4
13.6		 15 69.5
75
69.5		 2.8 110
11 25.2
32.4
39.6		 7
9
11		 140.8
124.85
96.8		 2950 13.86
14.74
14.96		 18.5 69.5
75
69.5		 2.8 110
12 25.2
32.4
39.6		 7
9
11		 153.6
136.2
105.6		 2950 15.12
16.08
16.32		 18.5 69.5
75
69.5		 2.8 110

VID-type pump series single suction segmented centrifugal pumpPerformance Table of 100D16 Centrifugal Water Pump


series		 Traffic Q Total Head
H
(meters)		 number of rotations
n
(Conversion/minute)		 Power N (kW) efficiency
η
%		 cavitation
margin
H (meters)		 impeller
diameter
(millimeters)
M3/hour l / s shaft power Motor Power
2 36
54
72		 10
15
20		 38.8
35.2
28.4		 2950 6.59
7.2
7.65		 11 58
71.5
73		 3.3 131
3 36
54
72		 10
15
20		 58.2
52.8
42.6		 2950 9.85
10.8
11.45		 15 58
71.5
73		 3.3 131
4 36
54
72		 10
15
20		 77.6
70.4
56.8		 2950 13.18
14.4
15.28		 18.5 58
71.5
73		 3.3 131
5 36
54
72		 10
15
20		 97
88
71		 2950 16.475
18
19.1		 22 58
71.5
73		 3.3 131
6 36
54
72		 10
15
20		 116.4
105.6
85.2		 2950 19.77
21.6
22.9		 30 58
71.5
73		 3.3 131
7 36
54
72		 10
15
20		 135.8
123.2
99.4		 2950 23.065
25.2
26.7		 30 58
71.5
73		 3.3 131
8 36
54
72		 10
15
20		 155.2
140.8
113.6		 2950 26.36
28.8
30.5		 37 58
71.5
73		 3.3 131
9 36
54
72		 10
15
20		 174.6
158.4
127.8		 2950 29.655
32.4
34.4		 37 58
71.5
73		 3.3 131
10 36
54
72		 10
15
20		 194
176
142		 2950 32.95
36
38.2		 45 58
71.5
73		 3.3 131
11 36
54
72		 10
15
20		 213.6
198.6
156.2		 2950 36.245
39.6
43.7		 55 58
71.5
73		 3.3 131
12 36
54
72		 10
15
20		 232.8
211.2
170.4		 2950 39.54
43.2
45.9		 55 58
71.5
73		 3.3 131

7D-type pump series single suction segmented centrifugal pumpPerformance Table of 125D25 Centrifugal Water Pump

series Traffic Q Total Head
H
(meters)		 number of rotations
n
(Conversion/minute)		 Power N (kW) efficiency
η
%		 cavitation
margin
H (meters)		 impeller
diameter
(millimeters)
M3/hour l / s shaft power Motor Power
2 90
108
126		 25
30
35		 46
40
32		 2950 15.2
15.6
15.4		 18.5 75
76
71		 3.6
4
5.3		 152
3 90
108
126		 25
30
35		 69
60
48		 2950 22.8
23.4
23.1		 30 75
76
71		 3.6
4
5.3		 152
4 90
108
126		 25
30
35		 92
80
64		 2950 30.4
31.2
30.8		 37 75
76
71		 3.6
4
5.3		 152
5 90
108
126		 25
30
35		 115
100
80		 2950 38
39
38.5		 45 75
76
71		 3.6
4
5.3		 152
6 90
108
126		 25
30
35		 138
120
96		 2950 45.6
46.8
46.2		 55 75
76
71		 3.6
4
5.3		 152
7 90
108
126		 25
30
35		 161
140
112		 2950 53.2
54.6
53.9		 75 75
76
71		 3.6
4
5.3		 152
8 90
108
126		 25
30
35		 184
160
128		 2950 60.8
62.4
61.6		 75 75
76
71		 3.6
4
5.3		 152
9 90
108
126		 25
30
35		 207
180
144		 2950 68.4
70.3
69.3		 90 75
76
71		 3.6
4
5.3		 152
10 90
108
126		 25
30
35		 230
200
160		 2950 76
78
77		 90 75
76
71		 3.6
4
5.3		 152

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