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HW Mixed Flow Pump
  • Flow:130~9000m³/h
  • Head:3.5~22m
  • Rotate speed:450~2950r/min
  • Medium temperature:≤50℃
  • Material:HT200
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Introduction

HW pump is a horizontal single stage single suction volute mixed flow pump and suitable for transporting pure water or the other liquid with both physical and chemical natures similar to those of water, with the temperature of the liquid to be transported not over 50℃, for the farm land irrigation, industrial and city water supply and drainage etc. multiple places.
The pump's performance range: flow 130~9000m³/h, head 3.5~22m. Simple structure, reliable use, easy installation, high efficiency, small body, light weight. Direct and variable actuations. The common movers are motor and diesel engine. Please note the model (power, rotating speed) of the mover so as to make sure of the norms of the clutch or the belt pulley. Viewing from the pump inlet, the impeller rotates counterclockwise generally (clockwise with 650HW-5, -7, -10 pump).
Product Application

·Irrigation of farmland in village
·Sewage of urban sewage treatment plant
·Large flow and low head industrial water circulating
·Municipal sewage pipe network construction and transformation
·Renovation and expansion of the old pumping station
·Water circulation of lake
·Other occasions

Features:
1. Pump Component: Model HW pump mainly consists of pump cover, impeller, pump casing, shaft, muff and bearing body (aperture ≤350mm) or bearing stand (aperture ≥400mm) etc. parts (Fig.1 and 2).
2. Standard Design: The pump cover is connected to the pump casing and the water-in pipe separately. There should a proper interval between the planes of both pump cover and impeller, too small interval will produce friction; while too big will cause the pressured water inside of the pump to flow back greatly to have the pump efficiency lowered. The practically used proper interval is 0.3~0.7mm (push the pump shaft to the pump inlet) and the interval can be adjusted through increasing or decreasing the paper pad thickness.
3. Spare Parts Standard: The shaft seal is formed with packing, packing gland, packing ring and the packing box on the pump casing (no packing ring with 150HW and 200HW pumps) and functions to prevent air from being sucked into the pump and too much water from flowing out axially.
4. Highly Integrated: The muff is used to protect the pump shaft and can be replaced after getting worn out.
5. Bearing Refueling: The pump shaft is supported with a single-line centripetal ball bearing. The bearing can be lubricated with lubricating oil-with he oil amount controlled in between the marking lines of the oil leveler rod; also with lubricating grease-filled during pump assembly or during use by means of removing both front and rear covers.
6. Convenient of Water Diversion: The screw hole on the top of the pump casing is used to prime leading water or link a vacuum pump for exhaust leading water.
7. Convenient to Usage: To widen the pump's range of use and meet with the users' different requirements, cut the outer diameter of the impeller or use an impeller of different performance (expressed with letter "A" etc. Added).
8. Optional Accessories: The accessories of 150~350HW pump include inlet and outlet dead and flexible elbows, foot valve, belt pulley or clutch; and of 400~650HW pump include inlet and outlet dead and flexible elbows, check valve, belt pulley or coupling.
Use and Maintenance

1. Trial:
Take a trial movement after the pump is installed to check the moving direction of it and remove the defect in the installation.

2. Sequence of trial:
(1)Close the outlet gate valve or check valve.
(2)Fill leading water: first start the pump and fill water into it through the screw hole on the top of it or open the check valve to let the water in the water-out pool back primed in; or directly use a vacuum pump to lead water by means of exhausting (when the vacuum pump exhausts the air inside of the pump completely and gets water out, start the pump and stop the vacuum pump).
(3)When the mover reaches the normal speed, open the gate valve fully and adjust the packing tightness . Have the pump go on moving in case of a normal movement and bearing temperature and a slight vibration (when the check valve is used, lift the bonnet when water goes out so as to reduce resistance).

3. Use and maintenance
(1)When the bearing uses thin oil for lubricating, often check and control the oil level with the bearing body in between two marking lines on the oil leveler rod; and when it uses dry oil (lubricating grease), supplement a proper amount of oil in a period ic time by means of removing both front and rear covers for model 150~350HW pump and the oil cup for model 400~800HW pump.
(2)Often check the bearing's temperature rise, which should not be over the ambient one by 35℃ generally and by 75℃ to the utmost extent.
(3)Pay attention to both frictional and collided sounds which may occur during the pump movement. In case of friction between both pump cover and impeller, add paper pad in between both pump cover and casing. The applicable interval in the actual use is 0.3~0.7mm.
(4)Adjust the packing properly to have the liquid intermittently leak in drops from the packing gland. Too tight packing will cause the shaft heated and the power increased while too loose will cause excessive liquid leak and a lowered efficiency.
(5)In case of direct link between both pump and motor, have the axial lines of both on a same straight line.
(6)Check if there is air which leaks from the water-in pipeline.
(7)Pay attention to the power to see if it is suddenly enlarged or lowered and if the flow is suddenly reduced, stop the pump to troubleshoot if it is.
(8)Often check if the bolts get loose due to vibration.
(9)Drain out the water remained in both pump and pipeline after stop in case of winter.
(10)Replace the lubricating oil or grease after 3000h work of the pump or in half a year and then once every 1000h or every year.
Product structure
 
structual diagram of model 400~800HW pump
(the water-out direction of model 650HW-5, -7, -10 is reversed to that shown in the figure-viewing from the pump's inlet, the impeller moves clockwise)

No. Name No. Name No. Name No. Name No. Name
1 Bearing stand 4 End cover 9 Screw 13 Muff 17 Packing gland
2 Bearing end cover 5 Thread cork 10 Pump cover 14 Impeller nut gasket 18 Packing ring
3 shaft 7 impeller 11 Retaining sleeve 15 Impeller nut 19 Paking
4 muff 8 pump casing 12 Clutch 16 Paper pad  

 

 
Technical Data
Model Flow Head Speed Shaft Power  Motor Efficiency (NPSH)r Weight
M³/h m r/min kW  Power (KW)   Model  %

 

 m

 

 kg

 

150HW-5 137
180
216
6.1
5
3.7
1450 3.30
2.99
2.94
4 YE3-112M-4 75          
82         
74
2.7 60
150HW-8 137
180
216
8.7
8
6.8
1450 4.07
4.65
4.78
5.5 YE3-132S-4 80          
82      
79.5
2.7 62
150HW-12 137
180
216
15.3
12.5
9.7
1450 7.60
7.47
7.71
11 YE3-160M-4 74           
82        
75
6 55
200HW-5 270
360
430
6.1
5    
4
970 6.18
6.01
6.27
7.5 YE3-160M-6 74        
82        
75
4 105
200HW-8 270
360
430
9.6   
8    
6
1450 9.29
9.39
9.41
11 YE3-160M-4 76
83.5
75
4 105
200HW-12 270
360
430
13.5
12.5
10.8
1450 13.11
14.68
16.93
18.5 YE3-180M-4 76
83.5
75
4 105
250HW-5 407
540
648
6.35
4.4
1180 7.52
9.00
11.81
11  

 

74
82
75
4 190
250HW-8 335
444
533
6.5
5.4
4.1
970 7.73
7.50
7.86
11 YE3-160L-6 77
84
76
2.7 190
250HW-8 407
540
648
9.6
8    
6
1450 13.66
13.96
13.95
18.5 YE3-180L-4 78.2
84.6
76.2
4 190
250HW-8 500
664
648
14.5
12.1
10.2
1450 25.35
26.09
23.71
30 YE3-200L-4 78.2
84.6
76.2
6.4 190
250HW-12 407
540
648
13.5
12.5
10.8
1450 19.36
21.92
24.41
30 YE3-200L-4 77.6
84.2
78.4
4 90
300HW-5 594
792
950
5.8  
5     
4
970 12.73
13.21
13.85
15 YE3-180L-6 74
82
75
4 230
300HW-8 594
792
950
9.6
8    
6
970 19.90
20.30
20.10
22 YE3-200L -6 78
85
77
4 230
300HW-12 594
792
950
13.5
12.5
10.2
970 28.11
31.85
34.41
37 YE3-250M-6 78
85
77
4 230
400HW-8 940
1116
1350
10.6
8.40
5.78
730 33.97
29.80
27.00
45 YE3-280M-8 80.2
86
79
4 492
400HW-10 1098
1400
1720
11.5
9.94
7.55
730 41.60
44.25
42.53
55 YE3-315S-8 83
86
83.5
4 496
400HW-18 1474
1880
2309
20.7
18
13.6
970 100.52
107.60
102.84
110 YE3-315L-6 83
86
83.5
5 496
500HW-6 1690
1980
2180
7.6
6.2
5.3
580 42.32
39.03
37.84
55 YE3-315M-10 83
86
83.5
5.5  

 

500HW-10 2127
2492
2744
12     
9.8
8.4
730 83.69
87.41
80.70
90 YE3-315L-8 83.4        
76.4   
78.1
6 770
650HW-5 2650
3312
3600
7.15
5.1  4
485 60.25
54.34
49.84
65  

 

86
85
79
5.5 1940
650HW-5 3224
4032
4379
10.58
7.55
5.92
590 108.46
97.93
89.73
110 YE3-355M-10 86
85
79
6 1940
650HW-7 3060
3400
3960
7.4
6.5 5
450 71.43
71.10
68.54
80  

 

86
85
79
5.3 1940
650HW-7 3295
3663
4244
8.6
7.6
5.9
485 91.16
86.51
80.55
100  

 

85          
88         
85
5.5 1940
650HW-7 4014
4457
5193
12.7
11.18
8.59
590 163.99
154.84
143.51
185 YE3-355L-10 85
88
85
6 1940
650HW-10 3200
4000
5000
15.8
14
10.4
590 170.69
174.01
167.29
185 YE3-355L-10 81
88
85
6 1940
650HW-10 2658
3322
4153
10.9
9.7
7.2
490 97.81
100.13
96.19
110 YE3-355M-12 81
88
85
5.5 1940
800HW-10 4784
5980
7176
14.8
12.2
8.6
490 239.02
226.70
198.53
250 YKK-450-12 81
88
85
5.5 3430
800HW-16 5760
7200
8640
21.5
17.7
12.5
590 398.40
396.00
369.16
450 YKK-500-10 85
88
80
6.5

 

3430
100HW-8S 70
90
98
10       
8      
7
2950 2.42
2.42
2.38
3 YE3-100L-2 78
81
80
4 29
150HW-6 140
180
200
6.6   
6    
5
1450 3.36
3.59
3.52
5.5 YE3-132S-4 75
82
78
3 68
150HW-6 174
223
248
10.1
9.2
7.7
1800 6.41
6.84
6.69
7.5  

 

75
82
78
4 68
200HW-10 300
360
450
8     
7
5.1
1200 8.46
8.39
8.97
11  

 

77
82
70
4 130
200HW-10 360
450
540
12
10   
7
1450 15.54
14.74
13.78
18.5 YE3-180M-4 76
83.5
75
5 130
200HW-10 400
500
600
14.5
12.5
9.5
1600 20.87
22.49
20.78
25  

 

76
83.5
75
5.5 130
250HW-7 400
450
500
87
6.3
970 10.74
10.29
10.88
15 YE3-180-6 81
84
79
4 168
250HW-11 400
450
500
5.5
4.8   
4
970 7.81
7.03
7.20
11 YE3-160-6 77
84
76
4 169
250HW-11 550
650
720
13.2
11.6
9.8
1450 24.12
24.72
24.12
30 YE3-200L-4 82.3
83.4
80
4 169
250HW-11 640
720
800
15.5
14.3
11.6
1600 32.96
33.76
31.99
37  

 

82.3
83.4
79.3
6.5 169
300HW-7 507
581
678
4.4
3.9
2.8
740 7.4
7.3
6.6
11 YE3-180-8 82
84
78
3 230
300HW-7 680
780
910
8    
7     
5
970 18.1
17.1
15.9
22 YE3-200-6 82
84
78
4 230
300HW-7 902
1035
1207
14.1
12.3
8.8
1300 42.3
41.4
37.1
45  

 

82
84
78
           5 230
350HW-8 670
745
819
5.2
4.4
3.7
730 11.16
10.44
10.15
15 YE3-200-8 78
85
77
4.5 330
350HW-8 900
1000
1100
9.4   8
6.7
970 27.10
25.50
24.66
30 YE3-225-6 85
85.5
81.5
5 330
400HW-7 1080
1260
1368
7.8
6.8
6.2
730 27.75
27.24
27.78
30 YE3-250M-8 83
86
83.5
4 486
400HW-7 1450
1692
1836
14.1
13.3
11.2
970 66.58
71.55
66.54
75 YE3-315-6 84
86
84.5
5.5

 

486
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