80FSB-30(D)
FS
80 30
D
B
Centrifugal pump series
FSB model FSB(D)Model
Application
The product is widely applicable to the following
fields: acid-washing and paint-spraying techniques in
auto manufacturing; transportation of electrolytes in
the non-ferrous metal metallurgy; chlorine water and
waste water treatment and technique process such
as acid-adding in ionic membrane sodium hudroxide
program.
Service temperature: -20℃~100℃.
The liquid-carrying parts of the FSB and FSB-D series
centrifugal pump are all made of fluoroplastic alloy. Their
structures are compact, operations easy, and prices
inexpensive. The pump casings, impellers, and
m e c h a n i c a l s e a l s , e t c . o f t h e m o d e l s a r e
interchangeable, and the models are warmly accepted
among industries such as pesticide, electronics, and
papermaking.
Design feature
Structure and materials
Bracket Mechanical sealing Mechanical sealing BracketPump housing
Rear cover
Impeller
Adjusting ring
FSB(D)Model FSB Model
Model meaning
The pump's inlet diameter is 80mm
The material of the liquid carrying part is fluoroplastic alloy
Single-stage single-suction cantilevered centrifugal pump
The pump lift is 30mm
The short bracket structure code
IHF65-50-125(D)
IHF80-65-125(D)
IHF50-32-160(D) 4-φ20
L B S P A W T H f 4-φdh
1
2
3
4
5
IHF65-50-160(D)
IHF50-32-200(D)
590
600
590
600
600
500
540
540
540
500
280 110 80 360 300 392 232 80
300 120 80 400 355 440 260 80
280
300
300 120
120
110 80
80
80
360
400
400 355
355
300 392
392
392 232
232
212 80
80
100
4-φ20
4-φ20
4-φ25
4-φ25
4-M16
IHF50-32-160(D)1
2
3
4
5
c a b e n-φd k g i j n-φt
IHF50-32-200(D)
IHF65-50-125(D)
IHF65-50-160(D)
IHF80-65-125(D) 20080
65
65
50
50 165
165
185
185
160
145
145
125
125 20
20
20
20
20
32
32
65
50
50
100
100
125
125
145
140
140
165
165
185
18
18
20
20
20
4-φ18
4-φ18
4-φ18
8-φ18
4-M16
4-M16
4-M16
4-M16
4-φ18
4-φ18
21 22
Installation dimension figure
Exterior and installtion dimension
ModelNumber
Flange dimension figure
Inlet flange Outlet flange
Inlet flange dimension Outlet flange dimension
ModelNumber
Remarks
1. For the meaning of the pump model please refer to IHF centrifugal pump.
2. For the pump's performance curve diagram please refer to related data of the IHF centrifugal pump of the same specification.
WOLONG WOLONG
1
2
3
4
5
6
7
8
9
10
40FSB-15(D)
40FSB-20(D)
40FSB-30(D)
50FSB-20(D)
50FSB-25(D)
50FSB-30(D)
65FSB-32(D)
80FSB-20(D)
80FSB-25(D)
80FSB-30(D)
3.5
5
10
6
10
12
6
10
12
8
12.5
15
8
12.5
15
8
12.5
15
15
25
30
35
50
60
35
50
60
35
50
60
15
15
8
22
20
17
31
30
28
21
20
17
26
25
22
31
30
30
33
32
30
21
20
17
26
25
23
32
30
28
33
45
48
30
42
48
22
36
38
40
52
52
38
48
48
35
46
46
42
56
58
55
65
68
53
64
68
58
64
64
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.5
3.5
3.5
40×32
40×32
40×32
50×32
50×32
50×32
65×50
80×65
80×65
80×65
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
3
3
3
3
3
3
5.5
5.5
7.5
7.5
55
55
55
55
55
55
125
125
130
130
*
*
*
*
*
*
*
*
*
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
25FSB-25
40FSB-15
40FSB-20
40FSB-30
50FSB-20
50FSB-25
50FSB-30
65FSB-32
80FSB-20
80FSB-25
80FSB-30
80FSB-40
80FSB-50
80FSB-55
100FSB-32
2
3.6
6
3.5
5
8
6
10
12
6
10
12
8
12.5
15
8
12.5
15
8
12.5
15
17
25
30
35
50
60
35
50
60
35
50
60
35
45
55
35
50
60
35
50
60
65
100
110
25
25
23
15
15
10
22
20
17
31
30
28
21
20
17
26
25
22
31
30
30
33
32
30
21
20
17
26
25
23
32
30
28
41
40
36
52
50
45
56
55
49
35
32
26
22
30
41
33
45
48
30
42
48
22
36
38
40
52
52
38
48
48
35
46
46
42
56
58
55
65
68
53
64
68
58
64
64
53
63
60
55
63
55
50
60
55
65
70
65
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.5
3.5
3.5
3.5
3.5
4.0
3.5
25×25
40×32
40×32
40×32
50×32
50×32
50×32
65×50
80×65
80×65
80×65
80×50
80×50
80×50
100×80
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
2900
1.5
3
3
3
3
3
3
5.5
5.5
7.5
7.5
11
15
18.5
15
48
75
75
75
75
75
75
125
125
130
130
210
208
230
250
*
*
*
*
*
*
*
*
*
*
*
*
*
*
40FSB-15
40FSB-20
40FSB-30 50FSB-30
50FSB-20
50FSB-2525FSB-25
65FSB-32
2 4 6 8 10 15 20 30
10
20
50
30
60
m
3
m /h
H
Q
20
50
30
60
m
3
m /h
80FSB-50
100FSB-3280FSB-30
80FSB-25
80FSB-20
80FSB-55
80FSB-40
30 50 80 100 120
H
Q
23 24
70
*
*
3
m /h m % m mm r/min kw kg
Model and meaning
FSB Model
ModelNumber Flow rate Pump lift Efficiency
Net positive
suction head
Inlet×Outlet
Rotational
speed Power of motor Weight of
complete machine
Note: 1. * stands for standard specifications; please choose parameters the same as or similar to what are in the table as much as possible, and if
the parameters are not included in the table, our factory can realize them by improving the impeller.
2. If the status point flow rate is too small, the inlet should be connected to the return pipe, and for more specific information you can consult
The company's technical department.
3
m /h m % m mm r/min kw kg
FSB(D)Model
ModelNumber Flow rate Pump lift Efficiency
Net positive
suction head
Inlet×Outlet
Rotational
speed Power of motor Weight of
complete machine
Performance curve diagram
The medium is clear water(20℃) The medium is clear water(20℃)
FSB centrifugal pump
FSB centrifugal pump
WOLONG WOLONG
L B S P A W T H f 4-φdh
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Y Q mx
100FSB-32
25FSB-25
40FSB-20
40FSB-15
786
786
980
980
980
1180
770
1280
786
590
610
610
610
610
610
710
1130
1000
610
440
460
460
460
460
460
480
480
480
480
660
660
660
720
460
70
70
70
70
70
130
130
125
124
124
124
205
70
130
70
340
340
340
340
370
370
370
365
430
430
430
485
270
340
142
142
142
142
142
142
142
142
82 240
310
310
310
310
330
330
330
330
390
390
390
435
310
240
250
250
250
250
250
250
250
250
250
300
300
300
435
250
280
280
280
280
280
290
290
290
285
340
340
340
485
270
280
287
287
287
287
287
347
347
347
347
410
410
410
500
277
287
162
162
197
197
197
197
230
230
230
280
162
40
40
40
48
40
55
55
55
55
103
103
103
100
45
40
77
85
85
85
82
85
95
95
95
118
118
118
118
95
85
180
180
180
180
180
210
210
210
210
265
265
265
265
150
180
4-φ16
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ14
4-φ18
4-φ18
4-φ18
4-φ24
L S P W T Hf h
1
2
3
4
5
6
7
8
9
10
mx
40FSB-15(D)
40FSB-20(D)
40FSB-30(D)
50FSB-20(D)
50FSB-25(D)
50FSB-30(D)
65FSB-32(D)
80FSB-25(D)
80FSB-30(D)
80FSB-20(D)
500
500
500
480
480
480
645
645
645
645
310
310
310
310
310
310
330
330
330
330
82
82
82
82
85
82
150
150
150
150
40
40
40
40
48
58
55
55
55
55
220
220
220
220
220
220
290
290
290
290
170
170
170
170
170
170
240
240
240
240
327
327
327
265
265
265
265
265
265
327
140
140
140
140
140
140
177
177
177
177
85
85
85
85
82
85
95
95
95
95
180
180
180
180
180
180
210
210
210
210
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
c a b e n-φd k g i j n-φt
25FSB-25
40FSB-15(D)
40FSB-20(D)
40FSB-30(D)
50FSB-20(D)
50FSB-30(D)
65FSB-32(D)
80FSB-25(D)
80FSB-30(D)
80FSB-40
80FSB-50
80FSB-55
50FSB-25(D)
100FSB-32
80FSB-20(D)
25
40
40
40
50
50
65
80
80
80
80
80
50
100
80
120
130
130
130
130
130
185
185
185
190
190
190
130
220
185
85
100
100
100
100
100
150
150
150
150
150
150
100
180
150
18
18
18
18
18
18
18
18
18
20
20
20
18
25
18
25
32
32
32
32
32
50
65
65
50
50
50
32
80
65
100
112
112
112
112
112
160
160
160
170
170
170
112
200
160
75
90
90
90
90
90
130
130
130
125
125
125
90
165
130
18
18
18
18
18
18
22
22
22
20
20
20
18
25
22
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ14
4-φ14
4-φ14
4-φ14
4-φ18
4-φ18
4-φ18
4-M16
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ12
4-φ18
4-φ18
4-φ18
4-M16
4-φ12
4-φ12
4-φ12
4-φ12
25 26
40FSB-30
1280
1325
50FSB-20
50FSB-25
50FSB-30
65FSB-32
80FSB-20
80FSB-25
80FSB-30
80FSB-40
80FSB-50
80FSB-55
340
786
786
786
980 725
725
725
310
162
162
162
162
82
82
82
82
82
92
1000
1000
Installation dimension figure
FSB (for dimension see table one) FSB(D) (for dimension see table two)
Table one
Exterior and installtion dimension
ModelNumber
Table two
Exterior and installtion dimension
ModelNumber
Flange dimension figure
Inlet flange
Outlet flange
Inlet flange dimension Outlet flange dimension
ModelNumber
Notes on use of FYH fluoroplastic liquid in the pump
Notes on use
Disassembly and assembly:
1.If change or check the impeller, the outlet valve may be closed, and remove the flange connection bolt and the
pedestal connection bolt, then haul the pump out of the container with lifting equipment.
2.Remove all bolts of the pump, and take out the pump cover and the impeller nut, then tap the pump housing with
double hammer. This way the impeller is removed.
3.While changing the rolling bearings or the filler, the pedestal should not be moved, and remove the eletric motor and
its bracket, then remove the pump shaft coupling, the gland, the round nut, and take out the bearing body. While
changing the filler, first take out the filler gland, then take out the to-be-changed filler.
4.The sequence of disasembly is just the opposite to that of assembly, and the concentricity of the mating parts of the
shaft should be paid attention to.
Dos and don'ts:
1.There should be speical bracket for the liquid flowing-out duct of the pump, and it's forbidden to support it by the
pump.
2.After the assembling of the pump, rotate the shaft coupling to see whether it turns smoothly. Check whether there
are metallic grating noise and whether the bolts of all parts are tightened.
3.Check the concentricity of the pump shaft and the electric motor shaft. The left and right difference of the two shaft
coupling should not exceed 0.1mm, and the end clearance of the two shaft couplings should be kept at 1~2.5mm.
4.The distance from the pump's suction inlet to the bottom of the container should be 2 to 3 times the suction inlet
diameter, and the distance between the pump housing to the container wall should be bigger than 2.5 times of the
diameter.
5.Check the motor's direction of rotation and make it conform to the
required direction.
6.Close the gate valve and pressure gauge on the outlet duct.
7.Start the electric motor and open the pressure gauge, then slowly turn
the outlet duct gate valve to the required postion, and the normal
operation begins.
8.Regularly check the pump and the electric motor. The bearing's
temperature rise should be not more than 75 , and there should be
enough consistent grease in the bearing box.
℃
WOLONG WOLONG

Fsb centrifugal pump

  • 1.
    80FSB-30(D) FS 80 30 D B Centrifugal pumpseries FSB model FSB(D)Model Application The product is widely applicable to the following fields: acid-washing and paint-spraying techniques in auto manufacturing; transportation of electrolytes in the non-ferrous metal metallurgy; chlorine water and waste water treatment and technique process such as acid-adding in ionic membrane sodium hudroxide program. Service temperature: -20℃~100℃. The liquid-carrying parts of the FSB and FSB-D series centrifugal pump are all made of fluoroplastic alloy. Their structures are compact, operations easy, and prices inexpensive. The pump casings, impellers, and m e c h a n i c a l s e a l s , e t c . o f t h e m o d e l s a r e interchangeable, and the models are warmly accepted among industries such as pesticide, electronics, and papermaking. Design feature Structure and materials Bracket Mechanical sealing Mechanical sealing BracketPump housing Rear cover Impeller Adjusting ring FSB(D)Model FSB Model Model meaning The pump's inlet diameter is 80mm The material of the liquid carrying part is fluoroplastic alloy Single-stage single-suction cantilevered centrifugal pump The pump lift is 30mm The short bracket structure code IHF65-50-125(D) IHF80-65-125(D) IHF50-32-160(D) 4-φ20 L B S P A W T H f 4-φdh 1 2 3 4 5 IHF65-50-160(D) IHF50-32-200(D) 590 600 590 600 600 500 540 540 540 500 280 110 80 360 300 392 232 80 300 120 80 400 355 440 260 80 280 300 300 120 120 110 80 80 80 360 400 400 355 355 300 392 392 392 232 232 212 80 80 100 4-φ20 4-φ20 4-φ25 4-φ25 4-M16 IHF50-32-160(D)1 2 3 4 5 c a b e n-φd k g i j n-φt IHF50-32-200(D) IHF65-50-125(D) IHF65-50-160(D) IHF80-65-125(D) 20080 65 65 50 50 165 165 185 185 160 145 145 125 125 20 20 20 20 20 32 32 65 50 50 100 100 125 125 145 140 140 165 165 185 18 18 20 20 20 4-φ18 4-φ18 4-φ18 8-φ18 4-M16 4-M16 4-M16 4-M16 4-φ18 4-φ18 21 22 Installation dimension figure Exterior and installtion dimension ModelNumber Flange dimension figure Inlet flange Outlet flange Inlet flange dimension Outlet flange dimension ModelNumber Remarks 1. For the meaning of the pump model please refer to IHF centrifugal pump. 2. For the pump's performance curve diagram please refer to related data of the IHF centrifugal pump of the same specification. WOLONG WOLONG
  • 2.
    1 2 3 4 5 6 7 8 9 10 40FSB-15(D) 40FSB-20(D) 40FSB-30(D) 50FSB-20(D) 50FSB-25(D) 50FSB-30(D) 65FSB-32(D) 80FSB-20(D) 80FSB-25(D) 80FSB-30(D) 3.5 5 10 6 10 12 6 10 12 8 12.5 15 8 12.5 15 8 12.5 15 15 25 30 35 50 60 35 50 60 35 50 60 15 15 8 22 20 17 31 30 28 21 20 17 26 25 22 31 30 30 33 32 30 21 20 17 26 25 23 32 30 28 33 45 48 30 42 48 22 36 38 40 52 52 38 48 48 35 46 46 42 56 58 55 65 68 53 64 68 58 64 64 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.5 3.5 3.5 40×32 40×32 40×32 50×32 50×32 50×32 65×50 80×65 80×65 80×65 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 3 3 3 3 3 3 5.5 5.5 7.5 7.5 55 55 55 55 55 55 125 125 130 130 * * * * * * * * * 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 25FSB-25 40FSB-15 40FSB-20 40FSB-30 50FSB-20 50FSB-25 50FSB-30 65FSB-32 80FSB-20 80FSB-25 80FSB-30 80FSB-40 80FSB-50 80FSB-55 100FSB-32 2 3.6 6 3.5 5 8 6 10 12 6 10 12 8 12.5 15 8 12.5 15 8 12.5 15 17 25 30 35 50 60 35 50 60 35 50 60 35 45 55 35 50 60 35 50 60 65 100 110 25 25 23 15 15 10 22 20 17 31 30 28 21 20 17 26 25 22 31 30 30 33 32 30 21 20 17 26 25 23 32 30 28 41 40 36 52 50 45 56 55 49 35 32 26 22 30 41 33 45 48 30 42 48 22 36 38 40 52 52 38 48 48 35 46 46 42 56 58 55 65 68 53 64 68 58 64 64 53 63 60 55 63 55 50 60 55 65 70 65 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.5 3.5 3.5 3.5 3.5 4.0 3.5 25×25 40×32 40×32 40×32 50×32 50×32 50×32 65×50 80×65 80×65 80×65 80×50 80×50 80×50 100×80 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 1.5 3 3 3 3 3 3 5.5 5.5 7.5 7.5 11 15 18.5 15 48 75 75 75 75 75 75 125 125 130 130 210 208 230 250 * * * * * * * * * * * * * * 40FSB-15 40FSB-20 40FSB-30 50FSB-30 50FSB-20 50FSB-2525FSB-25 65FSB-32 2 46 8 10 15 20 30 10 20 50 30 60 m 3 m /h H Q 20 50 30 60 m 3 m /h 80FSB-50 100FSB-3280FSB-30 80FSB-25 80FSB-20 80FSB-55 80FSB-40 30 50 80 100 120 H Q 23 24 70 * * 3 m /h m % m mm r/min kw kg Model and meaning FSB Model ModelNumber Flow rate Pump lift Efficiency Net positive suction head Inlet×Outlet Rotational speed Power of motor Weight of complete machine Note: 1. * stands for standard specifications; please choose parameters the same as or similar to what are in the table as much as possible, and if the parameters are not included in the table, our factory can realize them by improving the impeller. 2. If the status point flow rate is too small, the inlet should be connected to the return pipe, and for more specific information you can consult The company's technical department. 3 m /h m % m mm r/min kw kg FSB(D)Model ModelNumber Flow rate Pump lift Efficiency Net positive suction head Inlet×Outlet Rotational speed Power of motor Weight of complete machine Performance curve diagram The medium is clear water(20℃) The medium is clear water(20℃) FSB centrifugal pump FSB centrifugal pump WOLONG WOLONG
  • 3.
    L B SP A W T H f 4-φdh 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Y Q mx 100FSB-32 25FSB-25 40FSB-20 40FSB-15 786 786 980 980 980 1180 770 1280 786 590 610 610 610 610 610 710 1130 1000 610 440 460 460 460 460 460 480 480 480 480 660 660 660 720 460 70 70 70 70 70 130 130 125 124 124 124 205 70 130 70 340 340 340 340 370 370 370 365 430 430 430 485 270 340 142 142 142 142 142 142 142 142 82 240 310 310 310 310 330 330 330 330 390 390 390 435 310 240 250 250 250 250 250 250 250 250 250 300 300 300 435 250 280 280 280 280 280 290 290 290 285 340 340 340 485 270 280 287 287 287 287 287 347 347 347 347 410 410 410 500 277 287 162 162 197 197 197 197 230 230 230 280 162 40 40 40 48 40 55 55 55 55 103 103 103 100 45 40 77 85 85 85 82 85 95 95 95 118 118 118 118 95 85 180 180 180 180 180 210 210 210 210 265 265 265 265 150 180 4-φ16 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ14 4-φ18 4-φ18 4-φ18 4-φ24 L S P W T Hf h 1 2 3 4 5 6 7 8 9 10 mx 40FSB-15(D) 40FSB-20(D) 40FSB-30(D) 50FSB-20(D) 50FSB-25(D) 50FSB-30(D) 65FSB-32(D) 80FSB-25(D) 80FSB-30(D) 80FSB-20(D) 500 500 500 480 480 480 645 645 645 645 310 310 310 310 310 310 330 330 330 330 82 82 82 82 85 82 150 150 150 150 40 40 40 40 48 58 55 55 55 55 220 220 220 220 220 220 290 290 290 290 170 170 170 170 170 170 240 240 240 240 327 327 327 265 265 265 265 265 265 327 140 140 140 140 140 140 177 177 177 177 85 85 85 85 82 85 95 95 95 95 180 180 180 180 180 180 210 210 210 210 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 c a b e n-φd k g i j n-φt 25FSB-25 40FSB-15(D) 40FSB-20(D) 40FSB-30(D) 50FSB-20(D) 50FSB-30(D) 65FSB-32(D) 80FSB-25(D) 80FSB-30(D) 80FSB-40 80FSB-50 80FSB-55 50FSB-25(D) 100FSB-32 80FSB-20(D) 25 40 40 40 50 50 65 80 80 80 80 80 50 100 80 120 130 130 130 130 130 185 185 185 190 190 190 130 220 185 85 100 100 100 100 100 150 150 150 150 150 150 100 180 150 18 18 18 18 18 18 18 18 18 20 20 20 18 25 18 25 32 32 32 32 32 50 65 65 50 50 50 32 80 65 100 112 112 112 112 112 160 160 160 170 170 170 112 200 160 75 90 90 90 90 90 130 130 130 125 125 125 90 165 130 18 18 18 18 18 18 22 22 22 20 20 20 18 25 22 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ14 4-φ14 4-φ14 4-φ14 4-φ18 4-φ18 4-φ18 4-M16 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ12 4-φ18 4-φ18 4-φ18 4-M16 4-φ12 4-φ12 4-φ12 4-φ12 25 26 40FSB-30 1280 1325 50FSB-20 50FSB-25 50FSB-30 65FSB-32 80FSB-20 80FSB-25 80FSB-30 80FSB-40 80FSB-50 80FSB-55 340 786 786 786 980 725 725 725 310 162 162 162 162 82 82 82 82 82 92 1000 1000 Installation dimension figure FSB (for dimension see table one) FSB(D) (for dimension see table two) Table one Exterior and installtion dimension ModelNumber Table two Exterior and installtion dimension ModelNumber Flange dimension figure Inlet flange Outlet flange Inlet flange dimension Outlet flange dimension ModelNumber Notes on use of FYH fluoroplastic liquid in the pump Notes on use Disassembly and assembly: 1.If change or check the impeller, the outlet valve may be closed, and remove the flange connection bolt and the pedestal connection bolt, then haul the pump out of the container with lifting equipment. 2.Remove all bolts of the pump, and take out the pump cover and the impeller nut, then tap the pump housing with double hammer. This way the impeller is removed. 3.While changing the rolling bearings or the filler, the pedestal should not be moved, and remove the eletric motor and its bracket, then remove the pump shaft coupling, the gland, the round nut, and take out the bearing body. While changing the filler, first take out the filler gland, then take out the to-be-changed filler. 4.The sequence of disasembly is just the opposite to that of assembly, and the concentricity of the mating parts of the shaft should be paid attention to. Dos and don'ts: 1.There should be speical bracket for the liquid flowing-out duct of the pump, and it's forbidden to support it by the pump. 2.After the assembling of the pump, rotate the shaft coupling to see whether it turns smoothly. Check whether there are metallic grating noise and whether the bolts of all parts are tightened. 3.Check the concentricity of the pump shaft and the electric motor shaft. The left and right difference of the two shaft coupling should not exceed 0.1mm, and the end clearance of the two shaft couplings should be kept at 1~2.5mm. 4.The distance from the pump's suction inlet to the bottom of the container should be 2 to 3 times the suction inlet diameter, and the distance between the pump housing to the container wall should be bigger than 2.5 times of the diameter. 5.Check the motor's direction of rotation and make it conform to the required direction. 6.Close the gate valve and pressure gauge on the outlet duct. 7.Start the electric motor and open the pressure gauge, then slowly turn the outlet duct gate valve to the required postion, and the normal operation begins. 8.Regularly check the pump and the electric motor. The bearing's temperature rise should be not more than 75 , and there should be enough consistent grease in the bearing box. ℃ WOLONG WOLONG