KBS type single-stage double-suction medium-open pump
KBS type single-stage double-suction medium-open pump

KBS type single-stage double-suction medium-open pump

KBS type pump is a new generation of high performance single-stage double-suction center-open centrifugal pump. The pump selects excellent hydraulic model, so that the efficiency of the pump is 2-3% higher than the same type of pump, which greatly reduces the running cost of the pump and increases the vacuum height by 1-3 meters, thus reducing the civil construction investment and extending the service life. The water inlet and outlet are in the same straight line, and the same rotor can run in reverse.

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Classification：

Clear water centrifugal pump

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0871-65633051

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KBS type single-stage double-suction medium-open pump

I. Overview

KBS type pump is a new generation of high performance single-stage double-suction center-open centrifugal pump. The pump selects excellent hydraulic model, so that the efficiency of the pump is 2-3% higher than the same type of pump, which greatly reduces the running cost of the pump and increases the vacuum height by 1-3 meters, thus reducing the civil construction investment and extending the service life. The water inlet and outlet are in the same straight line, and the same rotor can run in reverse. The support spacing between the two ends of the pump is short, the pump runs stably, the vibration noise is small, and the speed can be properly increased to run, so that the pump can adapt to a wider range. The pump body part can be installed vertically or horizontally according to the change of use. It is mainly used in waterworks, air-conditioning circulating water, heating pipeline system, building water supply, irrigation, drainage pumping station, power plant, industrial water supply system, fire-fighting system, ship industry, mine water supply and drainage, etc. It is a comprehensive replacement product of SH, S, SA, SLA, SAP type medium open double suction pump.

II. Meaning of model

KBS 250 - 480 A - L - R(M、F) - J

KBS — Kun pump new single-stage double-suction center-open pump
250 — Water pump outlet diameter
480 — Impeller diameter
A — Impeller first cut
L — Vertical installation
R — Hot water type
M — Wear-resistant type
F — Corrosion-resistant type
J — Shaft seal is mechanical seal

 

III. Main Technical Parameters

Pump outlet diameter: DN=80 ~ 800mm

Flow rate： Q=22 ~ 11660m3/h

Head: H=7 ~ 200m

Working temperature: T=-20℃~105℃ (KBS type) =-60℃~200℃ (KBS-R type)

Solid particles： ≤80mg/l

Allowable working pressure: ≤2.5Mpa (KBS type) ≤4Mpa (KBS-R type)

IV. Structure Description

1、Structure

The inlet and outlet are in the same straight line, the same rotor can run in reverse, the support spacing between the two ends of the pump is short, the pump runs stably, the vibration noise is small, and the speed can be appropriately increased to run, so that the pump can adapt to a wider range. The water pump can adopt intermediate support, thickened pump body, seal cooling, bearing thin oil lubrication, etc., so that the water pump can be applied to the operating occasion of up to 200℃, especially suitable for the requirements of heating pipeline network use. The pump body part can be installed vertically or horizontally according to the change of using conditions, and the seal can adopt mechanical seal or packing seal.

2、Technical advantages

● The support distance between the two ends of the pump is short, so that the pump runs stably and the vibration and noise are small.

● The inlet and outlet are in the same straight line, which makes the pipeline arrangement simple, convenient and beautiful.

● The same rotor can run in reverse, which reduces the risk of pump damage caused by water hammer.

The unique high temperature design, middle support, thickened pump body, seal cooling, and thin oil lubrication of the bearings make the pump suitable for operation at temperatures up to 200°C. It is especially suitable for use in heat supply networks.

The pump body can be installed vertically or horizontally according to the change of use, and the seal can be mechanical seal or packing seal.

The appearance of the pump is industrialized and has clear lines, which meets modern aesthetics.

3. Cost advantages:

Excellent hydraulic model is selected, which makes the pump efficiency 2-3% higher than the same type of pump and greatly reduces the operating cost of the pump.

The vacuum height is increased by 1-3 meters, thus reducing the civil construction investment and extending the service life.

Imported bearings are selected and parts materials can be chosen according to user requirements, which makes the pump adaptable to various field operating conditions and greatly reduces maintenance costs.

4、Maintenance advantages:

Collective mechanical seal, replacing mechanical seal becomes an easy and simple job.

Application of elastic pre-stress assembly, rotor parts are easy and quick to assemble and disassemble.

No need to adjust various clearances when assembling.

V. Pump structure diagram

1、Pump body 2、Impeller 3、Pump cover 4、Water flushing tube parts 5、Sealing ring

6、Pipe plug 7、O-ring 8、Sealing body 9、Sealing gland or packing gland 10、Water retaining ring

11、Bearing gland 12、Bearing body 13、Shaft 14、Skeleton oil seal 15、Flexible retaining ring

16、Bearing retaining ring 17、Sleeve 18、Mechanical seal or packing seal 19、Bearing sleeve 20、Bearing

21、Bearing washer 22、Butterfly spring 23、Locking nut

 

Ⅵ.the main parts of the material table

Part Name Material Name Code Name
Pump Casing Grey cast iron HT250
Ductile Iron QT400-18
Cast steel ZG230-450
Impeller Bronze ZCuSn10Pb1
Grey cast iron HT250
Silicon brass ZCuZn16Si4
Stainless Steel ZC0Cr18Ni12Mo2Ti
Shaft Stainless Steel 2Cr13
Carbon Steel 45
   
Pump body sealing ring Bronze ZCuSn5Pb5Zn5
Grey cast iron HT250
Silicon brass ZCuZn16Si4
Stainless Steel ZC0Cr18Ni9Ti

 

Ⅶ. performance parameters table

Model Flow Head Rotational Speed Efficiency Motor power Necessary Quality
Q H n η Cavitation allowance m
m3/h m r/min % kW m kg
80－210   50.1 16 1450 75 5.5 1.6 278
83.5 13.8 82
100.2 12.4 80
A 46.3 13.8 74 4
77.2 11.8 81
92.6 10.5 80
B 42 11.8 72 3
70.4 9.8 80.5
84 9 78
C 38.6 10 72 3
64.4 8.2 78
77.3 7 76
  98.7 64.8 2900 75 37 4.5 278
164.5 55 82
197.4 49 80.5
A 97.7 56 74 30
152.9 47.5 81
183.5 42 80
B 83 47.5 73 30
138.5 39 80.5
166.2 36 79
80－210 C 77.4 41 2900 72 22 4.5 278
128.4 33.5 77.8
154 30 76
80-270   60.5 25.8 1450 73 11 2.3 293
100.8 22.8 78.5
121 20.5 76
A 57.6 22.4 72 11
96 19.3 77
115.2 17.4 74
B 52.9 18.8 70 7.5
88.1 16 76
105.7 14.3 74
C 47.6 15.7 68 5.5
79.4 13 75
95.3 11.6 73
  124.8 102.5 2900 73 75 6.3 293
208 90 78.5
249.6 79 75.5
A 115.5 90 72 75
192.4 77 77.5
230.9 68 75.5
B 104.8 75 2900 72.5 55 6.3 293
174.7 63.5 76
209.6 57.5 74
C 93 63 71 37
155 53 75
186 48 74
80-370   67 42.5 1450 68 22 2.3 308
111.6 38.8 75
134 34.5 73
A 63.6 36.5 66 15
105.5 33 72
126.6 28 69
B 52.8 30 65 15
96.3 26.5 70
115.6 23 66
C 52.3 25 63 11
87.1 22.5 67
104.5 18 62
100-250   90.7 22 1450 77 11 2.4 315
151.2 18.5 82
181.4 16 80.5
A 29.2 18.7 73 11
132.9 15.8 81
159.5 14.2 80
B 73.7 16 72 7.5
122.9 13.5 79
147.5 12 78
C 69.5 13.5 72 7.5
115.9 11 77.5
139 10 76
  173.4 87 2900 76 90 7.1 315
289 75 82.5
346.8 67 81.5
A 159 75 74 75
264.9 63 80.5
317.8 57 80
B 144 65 73 55
240.5 52 79
288.6 48 80
C 134 53 71 45
223.4 47 78
268 41 76
100-310   105.8 36.3 1450 73 22 2.6 338
176.4 31.2 80
211.7 26.8 77
A 103.6 31 75 18.5
172.6 26 79.6
207 18.3 76
B 94.5 26.2 72 15
157.5 22.5 79.3
189 15 75
C 85.7 22 74 11
142.8 18.5 79
171.4 15 74
  220 145 2900 74 185 11 338
349 126 80
441.6 107 77
A 245 120 77 132
341.6 106 79.6
410 90 76
B 205 104 73 110
314 87 79.3
377.8 78 76
C 147 90 70 90
245.4 78 79
294.5 66 75
100-375   113.4 61 1450 68 45 2.5 368
189 51 76.5
226.8 42 72
A 102.4 51 65 30
170.6 44 74
204.7 36 70
B 91.8 44 63 30
153 38 72
183.6 33 69
C 85 34 63 18.5
141.6 29 69
170 24 64
125-230   155.6 19 1450 75.5 18.5 1.8 375
262.8 15 85.5
329.5 12 82
A 155.6 16.2 73 15
262.8 12.5 84.5
328.9 9 82
B 139.4 14 73 15
232.4 11 82.5
278.9 8.5 75
C 118.8 12.5 70 11
198 8.5 77.5
237.6 7.3 74
  320 75 2900 76 110 6.8 375
533.5 60 85.5
640 50 83
A 298 66 74 90
496.7 52 84
596 42 80
B 272.6 57 73.2 75
454.3 43.5 82
545.2 34 78
C 247 48 70 75
411.6 34 77
494 27 75
125-290   162 31.3 1450 76 30 1.9 413
270 27 84
324 23.4 81
A 146.2 26.5 74 22
243.7 22 82
292.4 19.3 80
B 132.2 22 1450 73 18.5 1.9 413
220.5 18 80
292.4 16 78
C 117.5 18.5 70 15
195.8 14.2 78
235 12.3 75
  321.3 125 2900 77 200 7.6 413
535.5 108 84
642.6 95 81
A 290 105 75 185
400 98 80
580 77 80
B 262.3 74 73 132
437.2 57 80
524.6 45 78
C 233.4 74 72 90
389 57 78
466.8 43 75
125-365   187.9 52 1450 76 75 2.1 450
313.2 46.2 84
375.8 42 81
A 169.7 43.5 74 45
282.8 39 83
399.4 36 80
B 152.5 35.5 73 37
254.2 31.5 82
305 29 79
C 133.1 27 70 30
211.9 24 80
266.3 22 78
125-500   194.6 84 1450 75 110 2.3 503
324 76 82
388.8 70 80
A 168.5 73 72 90
280.8 67.5 80
388.8 62 78
B 146.9 62.3 70 75
244.8 57 78
293.8 53 76
C 129.6 53 67 45
216 48 76
259.2 44 72
150-290   266.1 26.5 1450 76 37 2.4 521
443.5 21 86
532.2 18 82
A 246.4 23 75 30
410.6 18 85
492.7 14.8 80
B 220 19.6 75 22
367 15.5 83
440 13 80
C 203 16 70 18.5
338.2 11.7 77
405.8 9.5 75
150-360   268.5 44 1450 76 75 3 539
447.5 38 85
537 33 82
A 242.5 37.3 75 55
400 32 80
485 27 80
B 217.8 31.5 74 37
363 25.5 81
435.6 22 78
C 194.8 26 72 30
324.7 20.5 78
389.6 16.5 76
150-450   309.3 74 1450 74 132 3 654
515.5 66 82
618.6 60 79
A 281 62.5 73 110
468.4 54.5 81
562.1 47.5 78
B 251 51 71 75
418.5 43.5 80
502.2 36 78
C 275.2 41 70 55
375.4 35.5 78.5
450.5 30 75
150-605   350.4 117 1450 74 250 3.7 969
584 105 81
700.8 96 78
A 321.7 102 72 200
536.2 91 80
643.4 80.5 76
B 296.2 87 70 160
493.6 77 78.5
592.3 69 75
C 270 73 69 132
450 62.5 77
540 55 73
200-320   407.3 37 1450 77 75 3.3 675
695.5 30 87
834.6 25 84.5
A 384.7 33 76 75
641.2 25.5 86.5
769.4 21 84
B 351 28 74 55
585 21.3 85
702 17 80
C 318 23 72 37
530 17.5 79
636 15 78
200-420   426 60 1450 78 132 3.8 776
710 52 86
852 46 84
A 385.1 51 77 110
641.9 42.5 84.5
770.3 37 82
B 352 43 1450 76 90 3.8 776
586.6 35.5 83
704 28 80
C 325.4 36 74 75
525.6 28.5 81
630.7 22.5 79
200-520   490.8 103 1450 76 280 3.5 1260
818 91 84
981.6 83 82
A 450 87 75 250
750 76.5 83
900 70 81
B 412.7 72 74 185
687.9

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