The LG-B vertical multi-stage centrifugal pump is a new generation of water supply product developed based on the actual needs of constant pressure water supply and fire protection industry in high-rise buildings. This pump adopts excellent domestic hydraulic models and has been carefully designed by our technical personnel. Therefore, it has the advantages of high efficiency, stable performance, low noise, long service life, beautiful appearance, small footprint, easy maintenance, and light weight.
The LG-B pump is composed of a motor and a pump, and the pump shaft is connected to the motor shaft with a clamp type coupling to ensure absolute coaxiality between the pump and the motor, resulting in smooth operation and low noise. The motor is a Y-shaped three-phase asynchronous motor, which is convenient for users to replace. It is rigidly connected as a whole and does not require calibration during use. The shaft seal adopts a mechanical seal, and the pump adopts a detachable structure for easy replacement of the mechanical seal. The rotation direction of the pump is clockwise when viewed from the motor end downwards. |
1. Novel structure and reliable operation: The balance drum (disc) is eliminated, and its axial force is balanced by hydraulic force, completely solving the problems of corrosion, biting and wear of the balance drum, ensuring more reliable operation.
2. Less operating and maintenance costs: Using reliable mechanical seals with low failure rates and lower operating and maintenance costs.
3. Low cost: By using a high-speed motor, this series of pumps has the characteristics of light weight, small size, and low cost.
4. Unique components and noise reduction: The unique hydraulic component design and excellent overcurrent performance minimize flow noise to the greatest extent possible. |
Flow range: 2.4-90m3/h
Head range: 15-180m
Medium temperature: -15 ℃ to+105 ℃
Environmental temperature: ≤+40 ℃
Maximum working pressure of the system: ≤ 2.5Mpa |
| The LG-B vertical multi-stage centrifugal pump is particularly suitable for use as a supporting pump for constant pressure water supply, fire protection, and sprinkler water supply equipment in high-rise buildings such as residential buildings, hotels, and office buildings; Also applicable for automatic water replenishment of cooling towers in chemical processes; Used for stabilizing system voltage, circulating water in production processes, long-distance transportation, boiler feedwater and other water supply equipment. |
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model
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Flow rate (m3/h)
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Head (m)
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Speed (r/min)
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Power (KW)
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Efficiency (0/0)
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Required NPSH (NPSH) r (m)
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Outer diameter of impeller (mm)
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shaft power
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Motor Power
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|
25LG3-10 x <>
|
3.0
|
20
|
2900
|
0.39
|
0.75
|
42
|
2
|
98
|
|
25LG3-10 x 3
|
30
|
O.58
|
1.1
|
42
|
2
|
98
|
|
25LG3-10 x4
|
40
|
0.78
|
1.5
|
42
|
2
|
98
|
|
25LG3-10 x5
|
50
|
0.97
|
1.5
|
42
|
2
|
98
|
|
25LG3-10 x6
|
60
|
1.17
|
2.2
|
42
|
2
|
98
|
|
25LG3-10 x7
|
70
|
1.36
|
2.2
|
42
|
2
|
98
|
|
25LG3-10 x8
|
80
|
1.56
|
2.2
|
42
|
2
|
98
|
|
25LG3-10 x9
|
90
|
1.75
|
2.2
|
42
|
2
|
98
|
|
25LG3-10 x10
|
100
|
1.95
|
3
|
42
|
2
|
98
|
|
25LG3-10 x11
|
110
|
2.14
|
3
|
42
|
2
|
98
|
|
25LG3-10 x12
|
120
|
2.33
|
4
|
42
|
2
|
98
|
|
25LG3-10 x13
|
130
|
2.53
|
4
|
42
|
2
|
98
|
|
25LG3-10 x14
|
140
|
2.72
|
4
|
42
|
2
|
98
|
|
25LG3-10 x15
|
150
|
2.92
|
4
|
42
|
2
|
98
|
|
32LG6.5-15 x 2
|
6.5
|
30
|
1.00
|
1.5
|
53
|
2.4
|
116
|
|
32LG6.5-15 x 3
|
45
|
1.50
|
2.2
|
53
|
2.4
|
116
|
|
32LG6.5-15 x
|
60
|
2.00
|
3
|
53
|
2.4
|
116
|
|
32LG6.5-15 x5
|
75
|
2.50
|
4
|
53
|
2.4
|
116
|
|
32LG6.5-15 x6
|
90
|
3.00
|
4
|
53
|
2.4
|
116
|
|
32LG6.5-15 x7
|
105
|
3.50
|
5.5
|
53
|
2.4
|
116
|
| 32LG6.5-15 x8 |
120 |
4.00 |
5.5 |
53 |
2.4 |
116 |
|
