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Your present location: Huiming Fluid >> Products >> Magnetic pump >> CQB type magnetic drive centrifugal pump
Pump Catalog

CQB type magnetic drive centrifugal pump

CQB type magnetic drive centrifugal pump
Submit Order Online Sales Hotline: 021-66620000 Inquiry Fax: 021-551685787

product name: CQB type magnetic drive centrifugal pump <br /> Caliber (import / export): 32-100 / 20-80 (mm)
flow: 3.2-100 (m3 / h)
Head: 20-80 (m)

Product Overview:

CQB magnetically driven centrifugal pumps (referred to as magnetic pumps ) are usually composed of a motor, a magnetic coupling and a corrosion-resistant centrifugal pump. Its main feature is the use of a magnetic coupling to transmit power without leakage. When the motor drives the outer magnetic steel of the magnetic coupling to rotate, the magnetic field lines pass through the gap and the isolating sleeve, and act on the inner magnetic steel, so that the pump rotor and the motor rotate synchronously. Torque is transmitted without mechanical contact. At the power input end of the pump shaft, because the liquid is enclosed in a stationary isolation sleeve, there is no dynamic seal, so there is no leakage at all.
The CQB series magnetic pump is a new type completely leak-free and corrosion-resistant pump developed by the national joint design team of magnetic pumps. Its technical and economic indicators are comparable to the level of similar foreign products in the late 1980s.
The type and basic parameters of CQB series magnetic pumps conform to the standards of JB / T 7742-1995 "Types and Basic Parameters of Small Magnetic Drive Centrifugal Pumps" and "Supplementary Provisions of Three Standards of Small Magnetic Drive Centrifugal Pumps"

Model meaning

Product use:

CQB series magnetic pump is suitable for petroleum, chemical, pharmaceutical, smelting, electroplating, environmental protection, food, film and television printing, water treatment, national defense and other industries. It is used to transport flammable, explosive, volatile, toxic, rare and precious liquids and various corrosive Ideal equipment for liquids. It is suitable for conveying liquid without hard particles and fibers with suction pressure not more than 0.2MPa, maximum working pressure 1.6MPa, temperature not more than 100 ℃, density not more than 1600kg / m3 and viscosity not more than 30 × 10-6m2 / S.

Fourth, installation and commissioning:

(1) The magnetic pump should be installed horizontally and should not be erected. The plastic pump body must not bear the weight of the pipeline. For vertical installation with special requirements, the motor must face upward.

(2) When the pumping liquid level is higher than the pump shaft centerline, it is sufficient to snooze the valve of the suction pipe before starting. If the pumping liquid level is lower than the pump shaft centerline, the pipe must be equipped with a bottom valve.

(3) The pump should be inspected before use. The fan blades of the motor should be flexible to rotate, without any jamming or abnormal noise, and the fasteners must be fastened.

(4) Check whether the rotation direction of the motor is consistent with the magnetic pump steering mark.

(5) After the motor is turned on, slowly open the discharge valve. After the pump enters the normal working state, adjust the discharge valve to the required degree.

(6) Before stopping the pump, close the discharge valve first, and then cut off the power.

5. Outline drawing and installation dimensions of the magnetic pump :

model
A
AD
B
L
L1
H1
H2
a
A1
A2
A3
H
H3
H4
L2
L3
L4
L5
L6
h
nd
CQB32-20-125
125
150
100
458
133
120
90
65
CQB32-20-160
140
155
100
483
143
160
90
65
CQB40-25-105
125
150
100
458
133
120
90
65
CQB40-25-125
140
155
125
508
143
160
112
65
CQB40-25-160
160
180
140
706
230
160
112
80
300
330
360
197
357
342
263
40
120
320
560
75
4-ф17
CQB40-25-200
261
210
140
821
275
160
132
80
350
380
410
232
392
415
329
87
160
325
645
50
4-ф22
CQB50-40-85
125
150
100
458
133
120
90
80
CQB50-32-105
140
155
125
508
143
160
112
80
CQB50-32-125
160
180
140
706
234
160
112
80
300
330
360
197
337
342
263
40
120
320
560
75
4-ф17
CQB50-32-160
190
190
140
800
290
160
112
80
300
330
360
217
377
370
344
43
120
415
655
100
4-ф17
CQB50-32-200
216
210
140
817
282
180
132
80
350
380
410
245
425
428
325
43
120
465
705
80
4-ф22
CQB50-32-250
254
255
210
987
337
225
160
100
380
410
440
300
525
525
397
55
150
550
850
80
4-ф22
CQB65-50-125
216
210
140
836
290
160
132
80
350
380
410
197
337
350
344
40
120
410
650
75
4-ф17
CQB65-50-160
216
210
140
836
290
160
132
80
350
380
410
217
377
400
344
40
120
410
650
75
4-ф17
CQB65-40-200
254
255
210
962
324
180
160
100
380
410
440
260
440
485
372
54
150
565
865
110
4-ф22
CQB65-40-250
279
285
241
1032
324
225
180
100
380
410
440
300
525
550
385
54
150
565
865
110
4-ф22
CQB80-65-125
216
210
140
817
282
160
132
81
350
380
410
217
377
457
325
43
120
465
705
80
4-ф17
CQB80-65-160
254
255
210
1013
350
180
160
100
380
410
440
260
440
485
423
98
210
395
815
90
4-ф22
CQB80-50-200
254
255
254
1086
380
200
160
100
380
410
440
260
460
485
451
50
210
450
870
90
4-ф22
CQB80-50-250
318
310
305
1251
390
225
200
125
470
500
530
320
545
595
476
127
210
490
910
110
4-ф22
CQB100-80-125
254
255
210
958
308
180
160
100
380
410
440
260
440
485
368
127
210
400
820
80
4-ф17
CQB100-80-160
254
255
254
1003
308
200
160
100
380
410
440
280
480
505
368
127
210
400
820
80
4-ф22
CQB100-65-200
318
310
305
1262
412
225
180
100
470
500
530
320
545
595
512
141
250
560
1060
130
4-ф28
CQB100-65-250
318
310
305
1290
412
250
200
125
470
500
530
340
590
645
512
141
250
560
1060
130
4-ф28

Performance parameters:

model
Caliber (mm)
flow
(m3 / h)
Head
(m)
Cavitation allowance
(NPSH) r (m)
Motor Power
(KW)
Rotating speed
(r / min)
import
Export
CQB32-20-105
32
20
3.2
12.5
4.5
1.1
2900
CQB32-20-125
20
4.5
1.5
CQB32-20-160
32
4.5
2.2
CQB40-25-105
40
25
6.3
12.5
4.5
1.1
CQB40-25-125
20
4.5
2.2
CQB40-25-160
32
4.5
3
CQB40-25-200
50
4.5
5.5
CQB50-40-85
50
40
12.5
8
4.0
1.1
CQB50-32-105
32
12.5
4.0
2.2
CQB50-32-125
20
4.0
3
CQB50-32-160
32
4.0
4
CQB50-32-200
50
4.0
7.5
CQB50-32-250
80
4.0
15
CQB65-50-125
65
50
25
20
4.0
5.5
CQB65-50-160
32
4.0
7.5
CQB65-40-200
40
50
4.0
15
CQB65-40-250
80
4.0
twenty two
CQB80-65-125
80
65
50
20
3.2
7.5
CQB80-65-160
32
3.2
15
CQB80-50-200
50
50
3.2
18.5
CQB80-50-250
80
3.2
37
CQB100-80-125
100
80
100
20
3.2
15
CQB100-80-160
32
3.2
twenty two
CQB100-65-200
65
50
3.2
37
CQB100-65-250
80
3.2
55
CQB125-100-200
125
100
200
50
3.2
75
CQB125-100-250
80
3.2
90

Seven, matters needing attention:

(1) Because the cooling and slippage of the magnetic pump bearings are dependent on the medium being transported, dry running is absolutely forbidden. At the same time, no-load running caused by power failure during the middle of work and then stratified.

(2) If solid particles are contained in the conveyed medium, a filter screen should be added to the pump inlet: if it contains ferromagnetic particles, a magnetic filter should be added.

(3) The ambient temperature of the pump in use shall be less than 40 ° C, and the temperature rise of the motor shall not exceed 75 ° C.

(4) The medium to be transported and its temperature should be within the allowable range of the pump material (the operating temperature of the engineering plastic pump of Yang Jian attached table is <60 ℃, the operating temperature of the metal pump is <100 ℃, and the suction pressure is not greater than 0.2MPa , The maximum working pressure is 1.6MPa, the density is not more than 1600Kg / m㎡, and the viscosity is not more than 30x10-6㎡ / S liquid without hard particles and fibers.

(5) For the medium that is easy to precipitate and crystallize, the transportation liquid should be cleaned in time after use to drain the liquid accumulated in the pump.

(6) After 1000 hours of normal operation of the magnetic pump, the wear of the bearing and the end-face moving ring should be disassembled, and the consumables that should not be reused should be replaced.

Eight, faults and troubleshooting methods:

Failure form

cause

Method of exclusion

No water from the pump

Water pump reverse

2. Air leak in the water inlet pipe

3. Insufficient water storage in pump cavity

4. The voltage is too high, the coupling slips when it is moving

5. Suction is too high

6. The valve is not snoring

1. Change the electrical wiring

2. The company must leak

3. Increase water storage capacity

4. Adjust the voltage

5. Lower the pump installation position

6. Correct or replace the valve

Insufficient traffic

1. The suction pipe diameter is too small or blocked

2. Impeller flow path is blocked

3. Head is too high

4. Not enough speed

1. Exchange or clean the swill officer

2.Clean the impeller

3. 幵 Large outlet valve

4. Restore the rated speed

Head is too low

1. Excessive traffic

2.Speed is too low

1.Close the small water outlet valve

2. Restore the rated speed

Too noisy

Severe shaft wear

2.Bearings are heavily worn

3. The outer magnetic steel or inner magnetic steel is in contact with the insulation sleeve

4.Seal ring and impeller grinding

1. Replace the pump shaft

2. Replace the bearing

3. Remove the pump head and reassemble

4. Replace the thrust ring and seal ring

Leakage

 type seal is damaged

Replace O-ring

  

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