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P r o d u c t C a t a l o g
2 0 0 5
SLD SERIES SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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CONTENTS
01-02
03-05
06-20
21-27
28
28-29
29-30
31
32
SLD series single-suction multi-stage sectional-type centrifugal pump
Structural drawing of model SLD pump
Main technical regime of model SLD pump
Extermal and erection dimensions of model SLD pump
Erection of the pump
Start,run and stop of the pump
Maintenance and service
Failures causes and troubleshooting
Reference table for pipeline loss
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01
SLD
80
OUTLINE
SLD single-suction multi-stage sectional-type centrif-
ugal Pump is used to transport the pure water containing
no solid grains and the liquid with both physical and che-
mical natures similar to those of pure water, the tempera-
ture of the liquid is not over 80 ,suitble for water supply
and drainage in mines, factories and cities.
(Q) 6.3-450 m /h
(H) 22-650 m
3
RANGE OF PERFORMANCE
Capacity(Q) 6.3-450 m /h
H ea d( H) 2 2- 65 0 m
3
(mm)
Pump stage number
Single-stage head value at the designed point of the pump(mm)
(m /h) Capacity value at the designed point of the pump(m /h)
Single-suction multi-stage sectional-type centrifugal pump
(mm) Dimeter of the suction inlet
3 3
MODEL MEANING
100 SLD 280 43 3
Hsz Ha-Hv- Hs-(NPSH)r
Hsz-- (m)
Ha-- (m)
Hv-- (m)
Hs-- (m)
(NPSH)r--
(m)
CALCULATION OF THE ERECTION HEIGHT
The erection height of the pump, that is the vertical
distance from the sucked liquid surface to the pump sh-
aft should be less than it which should be taken into con-
sideration for users to select the pump, is calculated per
the following formula:
Hsz Ha-Hv - Hs-(NPSH)r
Of which:
Hsz--the erection height set with the pump(m)
Ha-- the head of the atmospheric pressure under
the conditions on the spot of use(m)
Hv--the head of the vapourized pressure under the
temperature of the liquid being pumped(m)
Hs--the lost head of the suck-in pipeline(m)
(NPSH)r--the necessary value of NPSH given in the
table of performance parameters(m)
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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02
DESCRIPTIONOF STRUCTURE
SLD
SLD
Model SLD pump consists of four parts, stator, rotor,
be ari ng an d sha ft se al:
consists of the inlet, middle and outlet sections1.Stator
and the guide vane etc., With the take-up bolt tightly cl-
amping all sections to form a working room. The inlet of
it stands horizontally while the outlet vertically upward.
consists of the shaft, impeller, balancing disk 2.Rotor
and muff etc., The shaft passes the power to the impeller
to have it work; the balancing disk balances the axial force;
and replaceable muff is mounted on both sides of the shaft
to protect it.
There are rolling and sliding bearings:3.bearing
The rolling bearing consists of bearing seat, bearing
and bearing gland and uses grease for lubrication.
Th e slid in g b e a rin g c o n sists o f b e a rin g b o d y a n d
cover, liner, dust-proof disk, oil leveller, oil through wing
ring etc., and uses thinned oil for lubrication.
The shaft is sealed with stuffing and4.shaft sealing
the shaft seal consists of the sealing contents, stuffing, b-
affle, the liquid in the sealing work-room functions water
sealing, watercooling and water lubricating and the water
for water-sealing comes from the pressure water inside of
the pump.
pum p is dire ctly ac tu ated by th e pri me m-5.clutch
over Through the elastic clutch.
viewing from the prime mover, m-6.move direction
oves CW.
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STRUCTURAL DRAWING OFMODEL SLD PUMP
16151413121110987654321
SLD6-25 SLD12-25 SLD25-30 SLD46-30 SLD46-50 SLD85-45 SLD155-30 SLD280-43 SLDFig.1 Supported with the rolling bearing
1
2
Clutch part3
4
5
6
7
8
9
10
11
12
13
14
Bearing body
Stuffing gland
Inlet section
Seal-ring
Middel-section
Impeller
Guide vane
Guide vane sleeve
Water-sealing pipe part
Outlet sectionShaft
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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1
2
3
4
5
6
7
8
9
10
11
12
1
1
SLD85-67 SLD155-67Fig.2 Supported with the sliding bearing
Clutch part
Shaft
Front bearing part
Stuffing gland
Inlet section
Middel-section
Guide vane
Final-stage guide vane
Outlet section
Balancing ring
Water-sealing pipe part
Stuffing content
1 2 3 4 5 6 7 8 9
13 14
G1/4
STRUCTURAL DRAWING OFMODEL SLD PUMP
04
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SLD250-150 SLD250-150(A) SLD300-150 SLD300-150(A)
SLD250-150 SLD250-150(A) SLD300-150 SLD300-150(A)
Fig.2 Supported with the sliding bearing
Fig.2 Supported with the sliding bearing
1
2
3
4
5
6
7
8
9
10
11
12
Clutch part
Shaft
Front bearing body
Stuffing gland
Inlet section
Middel-section
Guide vane
Final-stage guide vane
Outlet section
Balancing ring
Water-sealing pipe part
Stuffing content
1 2 3 4 5
6 7 89
11 12 13 14 15 1
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
STRUCTURAL DRAWING OFMODEL SLD PUMP
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06
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 50SLD12-25 PUMP
PERFORMANCE TABLE OF MODEL 50SLD12-25 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
10
11
12
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
7.5
12.5
15.0
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
2.08
3.47
4.17
84
75
69
113
100
92
141
125
115
169
150
138
197
175
161
226
200
184
254
225
207
282
250
230
310
275
253
338
300
276
2950
2950
2950
2950
2950
2950
2950
2950
2950
2950
3.93
4.73
5.32
5.24
6.30
7.09
6.55
7.88
8.86
7.85
9.46
10.64
9.16
11.00
12.41
10.47
12.61
14.18
11.78
14.18
15.95
13.09
15.76
17.73
14.40
17.34
19.50
15.70
18.90
21.30
5.5
7.5
11.0
11.0
15.0
15.0
18.5
18.5
22.0
22.0
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
44
54
53
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
86
96
106
116
126
136
146
156
166
176
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07
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 65SLD25-30 PUMP
PERFORMANCE TABLE OF MODEL 65SLD25-30 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(%)Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
10
15
25
30
15
25
30
15
25
30
15
25
30
15
25
30
15
25
30
15
25
30
15
25
30
102
90
83
136
120
110
170
150
138
204
180
165
238
210
193
272
240
220
306
270
248
340
300
275
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
4.17
6.94
8.33
2950
2950
2950
2950
2950
2950
2950
2950
8.33
9.88
10.70
11.11
13.10
14.26
13.89
16.47
17.83
16.67
19.77
21.40
19.44
23.10
24.96
22.22
26.40
28.53
25.00
29.65
32.10
27.80
32.90
35.70
15.0
18.5
22.0
30.0
30.0
37.0
37.0
45.0
50
62
63
50
62
63
50
62
63
50
62
63
50
62
63
50
62
63
50
62
63
50
62
63
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
2.2
2.2
2.6
175
192
209
226
243
260
277
294
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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08
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 80SLD46-30 PUMP
PERFORMANCE TABLE OF MODEL 80SLD46-30 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
10
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
102
90
81
136
120
108
170
150
135
204
180
162
238
210
189
274
240
216
306
270
243
340
300
270
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
2950
2950
2950
2950
2950
2950
2950
2950
13.02
16.11
17.84
17.36
21.48
23.79
21.7
26.85
29.74
26.04
32.21
35.68
30.38
37.58
41.63
34.72
42.95
47.58
39.06
48.32
53.53
43.4
53.69
59.47
22
30
37
37
45
55
55
75
64
70
78
64
70
78
64
70
78
64
70
78
64
70
78
64
70
78
64
70
78
64
70
78
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
2.4
3.0
4.6
180
197
214
231
248
265
282
299
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09
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 80SLD46-50 PUMP
PERFORMANCE TABLE OF MODEL 80SLD46-50 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
10
11
12
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
30
46
55
166.5
150
138
222
200
184
277.5
250
230
330
300
276
388.5
350
322
440
400
368
499.5
450
414
555
500
460
610.5
550
506
666
600
552
8.33
12.8
15.3
8.33
12.8
15.3
30
46
55
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
8.33
12.8
15.3
2950
2950
2950
2950
2950
2950
2950
2950
2950
2950
25.19
29.83
32.3
33.59
39.77
43.06
41.98
49.72
53.83
50.38
59.65
64.59
58.78
69.6
75.36
67.18
79.54
86.12
75.57
89.48
96.89
83.97
99.42
107.66
92.37
109.36
118.42
100.8
119.3
129.2
37
45
55
75
90
90
110
110
132
132
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
54
63
64
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
2.5
2.8
3.2
264
285
307
327
348
373
390
411
432
452
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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10
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 100SLD85-45 PUMP
PERFORMANCE TABLE OF MODEL 100SLD85-45 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
2
3
4
5
6
7
8
9
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
102
90
78
153
135
117
204
180
156
255
225
195
306
270
234
357
315
273
408
360
312
459
405
351
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
2950
2950
2950
2950
2950
2950
2950
2950
24.25
28.94
30.35
36.38
43.4
45.53
48.5
57.87
60.7
60.63
72.34
75.86
72.75
86.81
91.04
84.88
101.3
106.2
97.0
115.7
121.4
109.1
130.2
136.6
37
55
75
90
110
132
132
160
63
72
70
63
72
70
63
72
70
63
72
70
63
72
70
63
72
70
63
72
70
63
72
70
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
3.2
4.2
5.2
199
224
250
275
300
326
351
376
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11
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 100SLD85-67 PUMP
PERFORMANCE TABLE OF MODEL 100SLD85-67 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
55
85
100
222
201
183
296
268
244
370
335
305
444
402
366
518
469
427
592
536
488
666
603
549
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
15.3
23.6
27.8
2950
2950
2950
2950
2950
2950
2950
58.3
68.4
73.3
77.8
91.2
97.8
97.3
114
122.2
116.7
136.9
146.7
136.2
159.6
171.1
155.6
182.4
195.5
175.1
205.2
220.0
90
110
132
160
200
220
250
57
68
68
57
68
68
57
68
68
57
68
68
57
68
68
57
68
68
57
68
68
3.3
4.0
4.4
3.3
4.0
4.4
3.3
4.0
4.4
3.3
4.0
4.4
3.3
4.0
4.4
3.3
4.0
4.4
3.3
4.0
4.4
952
1024
1145
1435
1558
1700
1860
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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12
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 150SLD155-30 PUMP
PERFORMANCE TABLE OF MODEL 150SLD155-30 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m)
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m)
Weight
(Kg)
2
3
4
5
6
7
8
9
10
119
155
190
119
155
190
119
155
190
119
155
190
119
155
190
119
155
190
119
155
190
119
155
190
119
155
190
64
60
54
96
90
81
128
120
108
160
150
135
192
180
162
224
210
189
256
240
216
288
270
243
320
300
270
33
43
53
33
43
53
33
43
53
33
43
53
33
43
53
33
43
53
33
43
53
33
43
53
33
43
53
1480
1480
1480
1480
1480
1480
1480
1480
1480
28.76
32.84
36.68
43.14
49.26
55.02
57.52
65.68
73.36
71.90
82.10
91.70
86.28
98.52
110.04
100.66
114.97
128.38
115.04
131.36
146.72
129.42
147.78
165.06
143.80
164.20
183.40
55
75
90
110
132
160
160
200
200
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
72.0
77.0
76.5
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
3.2
3.9
4.8
490
575
660
745
830
915
1000
1085
1170
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13
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 150SLD155-67 PUMP
PERFORMANCE TABLE OF MODEL 155SLD155-67 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(%)Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
100
155
185
100
155
185
100
155
185
100
155
185
100
155
185
100
155
185
100
155
185
228
201
177
304
268
236
380
335
295
456
402
354
532
469
413
608
536
472
684
603
531
27.8
43
51.4
27.8
43
51.4
27.8
43
51.4
27.8
43
51.4
27.8
43
51.4
27.8
43
51.4
27.8
43
51.4
2950
2950
2950
2950
2950
2950
2950
97.0
114.7
123.9
129.4
152.9
165.1
161.7
191.1
206.4
194
229.3
247.7
226.4
267.5
289
258.7
305.7
330.3
291.1
344
371.6
132
200
220
280
355
355
450
64
74
72
64
74
72
64
74
72
64
74
72
64
74
72
64
74
72
64
74
72
3.2
5.0
6.6
3.2
5.0
6.6
3.2
5.0
6.6
3.2
5.0
6.6
3.2
5.0
6.6
3.2
5.0
6.6
3.2
5.0
6.6
952
1024
1145
1435
1558
1700
1860
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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14
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 200SLD280-43 PUMP
PERFORMANCE TABLE OF MODEL 200SLD280-43 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m)
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m)
Weight
(Kg)
2
3
4
5
6
7
8
9
185
280
335
185
280
335
185
280
335
185
280
335
185
280
335
185
280
335
185
280
335
185
280
335
94
86
76
141
129
114
188
172
152
235
215
190
282
258
228
329
301
266
376
344
304
423
387
342
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
1480
1480
1480
1480
1480
1480
1480
1480
68.6
85.2
92.4
103.0
127.7
138.7
137.3
170.3
184.9
171.6
212.9
231.1
205.9
255.5
277.3
240.2
298.1
323.6
274.5
340.7
369.8
308.9
383.2
416.0
110
160
200
250
315
355
400
450
69
77
75
69
77
75
69
77
75
69
77
75
69
77
75
69
77
75
69
77
75
69
77
75
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
3.0
4.7
6.0
667
787
907
1027
1147
1267
1387
1507
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15
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 200SLD280-65 PUMP
PERFORMANCE TABLE OF MODEL 200SLD280-65 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(%)Motor power
(NPSH)r
(m )
Weight
(Kg)
6
7
8
9
10
185
280
335
185
280
335
185
280
335
185
280
335
185
280
335
408
390
372
476
455
434
544
520
496
612
585
558
680
650
620
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
51.4
77.8
93.1
1480
1480
1480
1480
1480
337.0
407.4
452.5
393.1
475.3
528.0
449.3
543.2
603.3
505.5
611.1
678.8
561.6
679.0
754.2
500
560
630
800
900
61
73
75
61
73
75
61
73
75
61
73
75
61
73
75
2.8
3.7
5.0
2.8
3.7
5.0
2.8
3.7
5.0
2.8
3.7
5.0
2.8
3.7
5.0
1552
1734
1916
2098
2280
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 250SLD450-60 PUMP
16
PERFORMANCE TABLE OF MODEL 250SLD450-60 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
3
4
5
6
7
8
9
10
335
450
500
335
450
500
335
450
500
335
450
500
335
450
500
335
450
500
335
450
500
335
450
500
195
180
171
260
240
228
325
300
285
390
360
342
455
420
399
520
480
456
585
540
513
650
600
570
93
125
139
93
125
139
93
125
139
93
125
139
93
125
139
93
125
139
93
125
139
93
125
139
1480
1480
1480
1480
1480
1480
1480
1480
247.1
229.2
298.5
329.4
372.3
398.0
411.8
465.4
497.5
494.2
558.5
597.0
576.5
651.5
696.5
658.9
744.6
796.0
741.2
837.7
895.6
823.6
930.8
995.1
355
450
630
710
800
900
1000
1120
72
79
78
72
79
78
72
79
78
72
79
78
72
79
78
72
79
78
72
79
78
72
79
78
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
3.8
4.9
6.0
1750
2000
2250
2500
2750
3000
3250
3500
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17
H m
%
m
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 250SLD250-150 PUMP
PERFORMANCE TABLE OF MODEL 250SLD250-150 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(%)Motor power
(NPSH)r
(m )
Weight
(Kg)
5
6
7
8
9
10
11
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
813
790
745
976
949
894
1138
1107
1043
1301
1265
1192
1464
1423
1341
1627
1581
1490
1790
1740
1640
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
2985
2985
2985
2985
2985
2985
2985
730
742
760
876
891
912
1021
1040
1064
1168
1188
1216
1314
1337
1368
1460
1485
1520
1606
1634
1673
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
5
5
5
5
5
5
5
3000
3300
3600
3900
4200
4500
4800
900
1000
1250
1400
1600
1800
2000
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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18
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 250SLD250-150(A) PUMP
PERFORMANCE TABLE OF MODEL 250SLD250-150(A) MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)3
(L/s)
Head
(m)
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m)
Weight
(Kg)
5
6
7
8
9
10
11
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
234
250
277
800
764
725
960
917
870
1120
1070
1015
1280
1222
1160
1440
1375
1305
1600
1528
1450
1760
1681
1595
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
65
69
77
2985
2985
2985
2985
2985
2985
2985
719
719
740
862
861
888
1005
1005
1036
1149
1149
1184
1292
1292
1332
1436
1445
1480
1580
1580
1628
900
1000
1250
1400
1600
1800
2000
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
71
72
74
5
5
5
5
5
5
5
3000
3300
3600
3900
4200
4500
4800
H m
%
m
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19
H m
%
m
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 250SLD300-150 PUMP
PERFORMANCE TABLE OF MODEL 250SLD300-150 MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(%)Motor power
(NPSH)r
(m )
Weight
(Kg)
5
6
7
8
9
10
11
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
800
790
745
960
948
894
1120
1106
1043
1280
1264
1192
1440
1422
1341
1600
1580
1490
1760
1738
1639
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
2985
2985
2985
2985
2985
2985
2985
795
843.7
936.4
954
1012.4
1123.6
1113
1181.2
1311
1272
1350
1498.2
1431
1518.6
1685.5
1590
1687.4
1872.8
1749
1856
2060
1120
1250
1400
1600
1800
2000
2240
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
6
6
6
6
6
6
6
3000
3300
3600
3900
4200
4500
4800
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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20
SINGLE-STAGE PERFORMANCE CURVE DIAGRAM OF MODEL 250SLD300-150(A) PUMP
PERFORMANCE TABLE OF MODEL 250SLD300-150(A) MULTI-STAGE WATER PUMP
No of stage
Capacity
(m /h)
3
(L/s)
Head
(m )
Speed
(r/min)
Power(kW)
Shaft power
Efficiency
(% )Motor power
(NPSH)r
(m )
Weight
(Kg)
5
6
7
8
9
10
11
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
270
300
360
824
813
750
988
976
900
1153
1139
1050
1318
1302
1200
1483
1464
1350
1648
1627
1500
1812
1798
1650
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
75
83.5
100
2985
2985
2985
2985
2985
2985
2985
819
868
943
983
1042
1131
1146
1216
1320
1310
1390
1508
1474
1564
1697
1637
1738
1885
1800
1911
2073
1120
1250
1400
1600
1800
2000
2240
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
74
76.5
78
6
6
6
6
6
6
6
3000
3300
3600
3900
4200
4500
4800
H m
%
m
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SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
G
L1
H 3 4-d
K
h
L4
L5
L7
L6L8 L2
L3
L
H 2
H
F
4
P (
)
B1
B3
K
b1
n - 1 7. 5
D 7
D 9
D 8
D 5
B2
B4
(
)
H 1
b2
SLD6-25 SLD12-25 SLD25-30 SLD46-30 Fig.3 Figure and dimension
EXTERNAL AND ERECTION DIMENSIONS OF MODEL SLD PUMP
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SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
D1n - d1 1
D2
D3
n - dD4
D5
D7
D6
n - d2 2
B 4
B3
B2B1
L5
L2
L3
L1
L
H 2
H 3
( )SLD46-50 SLD85-45 SLD155-30
Fig.4 Figure and dimension figure for series pump(pump and motor together bed)
EXTERNAL AND ERECTION DIMENSIONS OF MODEL SLD PUMP
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24
TABLE SERIES PUMP FIGURE AND DIMENSION TABLE(PUMP AND MOTOR TOG
L L 1 L2 L3 L4 L5 B1 B2 B3 B4 B5 H H1 H2 H3 D4 D5 D6
3
4
5
6
7
8
9
10
11
12
2
3
4
5
2
3
4
1717
1817
1992
2122
2182
2292
2473
2533
2641
2701
1613
1842
1986
2110
2065
2250
2415
245
305
365
425
485
545
605
665
725
785
203
277
351
425
310
425
540
875
925
1020
1130
1180
1180
1330
1330
1480
1480
850
1040
1060
1120
1060
1100
1260
-
-
-
565
590
590
665
665
740
740
-
-
530
560
530
550
630
122.5
152.5
182.5
162.5
232.5
232.5
187.5
247.5
197.5
257.5
104
130
172
202
172.5
267
267
1317
1415
1571
1758
1869
1869
2046
2046
2217
2217
1263
1468
1615
1740
1550
1730
1895
300
300
300
300
300
300
300
300
300
300
250
250
250
250
350
350
350
310
345
385
410
410
410
460
460
460
460
310
385
410
410
385
410
410
570
620
670
720
720
720
820
820
820
820
580
675
730
730
650
710
710
500
550
600
650
650
650
750
750
750
750
520
615
670
670
580
640
640
500
500
500
500
500
500
500
500
500
500
520
520
520
520
580
580
580
360
420
420
420
420
420
515
515
515
515
325
365
395
395
430
430
430
630
690
690
690
690
690
785
785
785
785
625
615
645
645
780
780
780
635
725
745
780
780
780
960
960
960
960
600
690
755
755
755
790
790
50
50
60
60
60
60
60
60
60
60
40
40
40
40
50
50
50
80
80
80
80
80
80
80
80
80
80
100
100
100
100
150
150
150
150
150
150
150
150
150
150
150
150
150
170
170
170
170
240
240
240
D1 D2 D3Pump
type
Dime-nsion
No of stage
SLD
46-50
SLD
85-45
SLD
155-30
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SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
SLD85-45 SLD155-30 SLD280-43 SLD280-65 SLD450-60 SLD85-67 SLD155-67 SLD
SLD250-150(A) SLD300-150 SLD300-150(A)
Fig.5 Figure and dimension figure for series pump
L7
L3
L4
L8
L1
L2
L5
H 1
H
L6n - d1 1
B 2
D2
D3
D1
n - d2 2
D
EXTERNAL AND ERECTION DIMENSIONS OF MODEL SLD PUMP
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TABLE3 SERIES PUMP FIGURE AND DIMENSION TABLE (PUMP FOUN
nL 1 L 2 L 3 L 4 L 5 L 6 L 7 L 8 B B 1 B 2 H H1 D 1 D2 D 3 D4 D5 D 6 D 7
SLD
85-45
SLD
155-30
SLD
280-43
SLD
280-65
SLD
450-60
6
7
8
9
5
6
7
8
9
10
2
3
4
5
6
7
8
9
6
7
8
9
10
3
4
5
6
7
8
9
10
683
757
831
905
800
915
1030
1145
1260
1375
455
585
715
855
985
1115
1245
1385
1080
1210
1340
1470
1600
829
829
1129
1129
1429
1429
1729
1729
190
190
190
190
175
175
175
175
175
175
77.5
92.5
107.5
122.5
137.5
142.5
147.5
167.5
190
190
190
190
190
139.5
139.5
139.5
139.5
139.5
139.5
139.5
139.5
1128
1202
1276
1350
1476
1594
1706
1821
1936
2051
1173
1303
1433
1563
1693
1823
1953
2083
2028
2158
2288
2418
1548
1515
1665
1815
1965
2115
2295
2445
2595
499
573
647
721
655
770
885
1000
1115
1230
379
509
639
769
899
1029
1159
1289
865
995
1125
1255
1385
589
730
880
1030
1180
1330
1480
1630
92
92
92
92
50
50
50
50
50
50
-2.5
12.5
27.5
37.5
52.5
57.5
62.5
77.5
80
80
80
80
80
0.5
74.5
0.5
74.5
0.5
74.5
0.5
74.5
303
377
451
525
450
565
680
795
910
1025
300
400
500
610
710
830
950
1050
700
830
960
1090
1220
550
550
850
850
1150
1150
1450
1450
326
326
326
326
455
455
455
455
455
455
412
412
412
412
412
412
412
412
625
625
625
625
625
455
455
455
455
455
485
485
485
430
430
430
430
524
524
524
524
524
524
493.5
508.5
503.5
533.5
548.5
553.5
558.5
573.5
710
710
710
710
710
484.5
560.5
484.5
560.5
484.5
590.5
514.5
590.5
580
580
580
580
670
670
670
670
670
670
800
800
800
810
810
810
810
820
860
860
860
860
860
950
950
950
950
950
950
950
950
250
250
250
250
350
350
350
350
350
350
450
450
450
450
450
450
450
450
500
500
500
500
500
530
530
530
530
530
530
530
530
520
520
520
520
600
600
600
600
600
600
730
730
730
740
740
740
740
750
790
790
790
790
790
890
890
890
890
890
890
890
890
345
345
345
345
430
430
430
430
430
430
480
480
480
480
480
480
480
480
530
530
530
530
530
590
590
590
590
590
590
590
590
250
250
250
250
350
350
350
350
350
350
400
400
400
400
400
400
400
400
500
500
500
500
500
500
500
500
500
500
500
500
500
100
100
100
100
150
150
150
150
150
150
200
200
200
200
200
200
200
200
200
200
200
200
200
250
250
250
250
250
250
250
250
26
Pump
type
Dime-nsion
No of stage
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28
(1)
3 5
(2)
(3)
(1)
(2)
(3)
0.06
0.08
(4)
(5) SLD18-8 SLD-34-12 SLD54-16 SLD101-25
ERECTION OF THE PUMP
1. Preparations before erection:
(1) The pump's basis must be enough strong, the mass
of which should be approximately 3-5 times that of the unit.
(2) Check both pump and motor to see if there is any
loss of the pump's parts and any damages during transpor-
tation.
(3) Make ready the tools and lifting machinery.
2. Sequence of erection:
(1) Place steel pad and wedge under the foundation.
Ho o k th e fo u r a n g le s o f th e fo u n d a tio n with th e liftin g
hooks to lift it on the ground and then slowly place it on
the position with each bolt hole aimed at.
(2) Level up the foundation, tighten the foot bolts and
pou r slurry ont o th e foo t.
(3 ) Ad ju st e q u ip me n ts. Th e re sh o u ld b e a n in te rv a l
between both pump and clutch of the motor and axes of both
pump and motor sho uld be coincided. For the two clu tch es,
the evenness of the end-face intervals of both can be mea-
sured with a feeler, the allowed tolerance of which is 0.06mm,
a n d th e in te rv a ls b e twe e n th e ru le rs, wh ic h a re u se d to
measure in every direction along with the circumferences
of both, on the surfaces of both excircles have an allowed
tolerance of 0.08mm, use the adjusting pad to adust in case
of unconformity.
(4) Link both inlet and outlet pipelines and both vacu-
umometer and piezometer at both inlet and outlet Sections.
(5) For the pump of model SLD18-8, SLD34-12, SLD
54-16 and SLD101-25, please lead the balancing water with
a flexible pipe to the inlet pipeline or directly drain it into
the sewer. Absolutely prohibit the balancing water hole from
bei ng blo cke d up with a woo d cor k etc.obj ect s.
(1)
(2)
(3)
START, RUN AND STOPOF THE PUMP
Start:
(1) Check if the oil level of the bearing is normal be-
fore start in case of the the thinned oil lubrication.
(2) Check if the rotary direction of the motor is correct
be for e start.
(3) Before start, first move the pump's clutch with hand
to see if the moving part of it is flexible
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5 10 10 20
(4)
(5)
(6)
(1)
30 75
(2)
(3) 10 20
(4)
(5)
and, in case of sliding bearing, move the pump 5-10
minutes or fill 10-20ml oil into the oil hole on the upper
to have the bearing uniformly lubricated.
(4 ) Ch e c k if a ll me te rs, in stru me n ts a n d v a lv e s a renormal.
(5) Before start, pour water into the pump or extract
the air inside of it and close the gate valve on the outlet
pi pe li ne an d th e pi ez om et er 's pl ug , th en ge t th ro ug h th e
ciroulated cooling water pipeline of the sliding bearing.
(6 ) Afte r sta rt, o p e n th e p ie z o me te r 's p lu g a n d th e
vacuumomenter's as well, and gradualy open the gate valve
to wait till the pointer of the piezometer pointing at the
desired position.
Run:
(1 ) Pa y a tte n tio n to th e te mp e ra tu re o f th e p u mp 's
be ar in g af ter it is st ar ted , the av er ag e te mp er at ur e ri se
s ho ul d n ot be ov er 30 a nd th e m ax im um on e 7 5 .
(2) Often fill oil during its running.
(3 ) 1 0 -2 0 d ro p s p e r min u te is ta k e n a s th e n o rma l
leakage of water for the stuffing room, otherwise, the st-
uffing gland has to be adjusted.
(4) Periodically check the clutch.
(5) Stop running at once in case of a failure during it
and carry out service according to the troubleshooting table.
Stop:Slowly close both gate valve and piezometer's plug
on the outlet pipeline and the plug of the vacuumometer
on the inlet one, then cut off the power of the motor and,
Fin a lly , sto p th e c irc u la te d c o o lin g wa te r o f th e slid in g
be ari ng.
(1)
(2)
(3)
(4)
1. Maintenance:(1) Check if the pump's foundation, pump and motor
are tightened.
(2) Check the status of the lead-wires of the meters
and if the pipeline leaks or is loose.
(3) Replace the lubricating oil of the bearing.
(4) Periodically check the performance and running
status of the pump and make a detailed record, carry out
service at once if case of a problem.
2. Assembly and removal:
MAINTENANCE AND SERVICE
29
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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30
(1)
(2)
(1)
(2)
(
)
(3) O
( )
(4) ( )
(5)
(
)
(6)
O
7 0.150.18mm 0.075 0.09mm
1) Preparations before removal:
(1) Drain the liquid inside of the pump out.
(2) Remove the attached pipelines affecting the re-
moval.
2) Steps of removal:
(1 ) Sc re w o u t th e b o lt o n th e b e a rin g g la n d o n th e
outlet side and the link-nuts among the outlet section, stu-
ffing content and bearing body to remove the latter, screw
out the screws on the bearing gland, dust-proof disk and
bea ring cov er in cas e of the slidi ng bea ring to re mov e th e
gland, cover and both upper and lower liners then screw
out the nuts among the bearing body, stuffing content and
outlet section on the outlet side to remove the former.
(2) Screw out the round nut on the shaft, remove the beari ng's inner ring, bearing gland and baffle sleev e in turn,
then remove the stuffing content (including the stuffing
gland stuffing ring, stuffing etc.).
(3) Remove the O-ring of seal, muff, balancing disk
and pin in turn, then remove the outlet section (including
the final-stage guide vane and balancing sleeve).
(4) Remove the final-stage impeller and pin, then the
middle section(including the guide vane). Go on removing
the impellers, middle sections and guide vanes of the left
each stage with the same way till the first-stage impeller's
removal.
(5) Screw out the link-nuts between the inlet section
a n d th e b e a rin g b o d y a n d th e b o lt o n th e b e a rin g g la n d ,
then remove the bearing part(before this, first remove the
pum p's clutch) .
(6) Take the shaft out of the inlet section and screw
out the fixing nuts on it, then remove the bearing's inner
ring, O-ring of seal, muff, baffle sleeve etc.in turn.
The removal has been basically finished at that time,
however, there are some parts still connected with each
other then, which are convenient to be removed generally
ju st by sc rew in g out th e li nk- nut or bol t.
To assemble it is to take the reversd sequences to re-
move in general, when to assemble the sliding earing, both
liner and shaft should be paired and scraped and it is re-
quired there are over 7 points per square inch on the liner,
the interval between the liner and the upper shaft should
be 0.1 5-0 .18 mm and of the sin gle sid e on sid es 0.0 75-0.0 9
mm.
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Failure Possible causes Troubleshooting
Water poured into pump not enough, both
air leaks from pipeline and meters.
Foot valve not opened or already blocked
up, too big resistance with suction pipeline,
too big height of water suction.
Bad lubrication with bearing, both axes of
pump and motor not coincided . Cooling
water blocked up, shaft liner damaged.
Too much resistance on outlet pipeline,
uncorrect rotary direction. Flow path of
impeller blocked up. Pump's rotary nu-
mber not enough.
Pump's flow-path, pipeline blocked up. Too
big inter val in seali ng place , unen ough
rotary number.
Too tightly pressed stuffing gland, stuffing
content heated. Impeller frictions. water
increases from the pump.
Too big flow and resistance on suction
pipeline. Too big height of water suction,
air penetrates into suction pipeline.Too
high temperature with the liquid being
transported.
Axes of both pump and motor not
coincide.
Pour more water into it, tighten bolt or plug
on leaking places.
Check or replace foot valve, clean or replace
suction pipeline, lower the height.
Clean and check bearing and inject proper
lubricating oil, aim both axes, dredge cooling
water pipeline, repair the liner.
Check or shorten outlet pipeline, change the
direction. Make up the path. Increase the rot
ary number to the designed value.
Make up pump and pipeline. Replace seal-ring.
Increase rotary number.
Adjust the gland, replace stuffing. Adjust gate
valve on outlet pipeline or increase the resi-
stance on outlet pipeline.
Lower the flow. Check suction piepline and foot
valve, lower the height. Tighten bolt or plug
on the penetrated place. Lower the temper-
ature.
Check and correct the intervals between the
circle and end-face on the clutches of both
pump and motor.
3
Bearing overheated.
4
No water out of pump, though a pressure exists
on its outlet by viewing on piezometer.
5
Flow lower than designed value.
6
Too heavy consumption of ower with pump.
7
Abnormal sound from pump, no water out of
it.
8
Vibration with pump.
2
No water out of pump while a high vacuum
shows on vacuumometer.
1
No water out of pump, while both pieometer
and vacuumometer's pointers severely jumping.
FAILURES CAUSES AND TROUBLESHOOTING
31
SLD SINGLE-SUCTION MULTI-STAGE SECTIONAL-TYPE CENTRIFUGAL PUMP
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100mm 100 100 100=10000mm=10m
8L/s 100m 1.3m 10m 0.13m 100mm
8L/s 0.13m
Note: For instance, a 100mm diameter pipe, the foot valve has a 100 100=10000mm=10m diater when
Looked intowhich is converted into 100 times that of the pipe's diameter. Suppose the flow is 8L/s
for 100mm is 0.13m,tha above table, the loss of the straight pipe is 1.3m each 100m, then the one
is 0.13m.that is, for a 100mm foot valve with a flow 8L/s, its head low is 0.13m
THELENGTHOF ASTRAIGHTPIPECONVERTEDINTOFROMBOTH VALVEAND ELBOW(EACH) LIMIT OF THEMAXIMUN FLOW FOR
1
32.7
3.5
0.8
2
13.0
14
3.1
1.6
0.4
4
55
13
3.2
0.8
0.23
6
29
7.1
3.3
0.8
0.23
8
13
5.9
1.3
0.4
0.16
10
20
9.6
2.1
0.63
0.26
0.11
15
21.6
6.8
1.3
0.58
0.
0.13
27
20
8.6
2.7
1.1
0.5
0.26
0.07
25
13
4.1
1.6
0.7
0 37
0.12
4
.
30
19.4
5.9
2.3
1.05
0.53
0.18
0.07
40
1 .7
4.2
1.9
0. 3
0.30
0.12
0
9
50
6.4
2.9
1.5
0.48
0.19
60
.
4.3
2.1
0.68
0.27
9 4
70
5.8
2.9
0. 3
0.37
9
80
7.7
3.7
1.2
0.49
90
9.6
4.7
1.5
0.61
100
6.1
1.9
0.76
25
38
50
65
75
100
125
150
175
200
250
300
Pipediameter (mm)
32
REFERENCE TABLE FOR PIPELINE LOSS
Variety
Standard elbow
Fully opened gate valve
Back valve
Foot valve
Convert into the times of thediameter of a straight pipe
12
25
100
100
Remark
Multiple in case of unopen
Partial block-up multipled
Note: The pipeline loss would be made greatly increased once the limit is o
Pipeline diameter (mm)
25
38
50
65
75
100
Maximum flow(L/s)
1
2.5
4.17
6.67
10.0
18.4
Maximum flow rate(m/s)
2.04
1.69
2.12
2.01
2.26
2.33
Capacity(L/s)
( )100mBrief table for the frictional loss of a straight pi
meters of a 100m straight pipe takes the newly
and multiple for the old one.
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As we are constantly endeavouring to improve the performance of our equipment.
The company reserves the right to make alteration from time to time and equipment differ from that detailed in this brochure.
S H A N G H AI L I A N C H E N G ( G R O U P ) C O . , LT D .
SHAN GHAI LIAN C HE NG PUM P- M AN UFAC T UR E C O. , LT D.
