LG型多級離心泵是根據我國對高層建筑給排水的要求而開發的新一代產品。該型泵由于采用了優秀的水力模型，因此具有效率高，性能范圍廣等優點，更好的滿足用戶的使用要求。在結構上采用了立式、分段形式，且運轉安全、平穩、壽命長、占地面積小、安裝維修方便。
本型泵是立式多級節段式結構，用拉桿螺柱把進水段、中段、出水段緊固成一體，每級裝一個葉輪及導葉，其軸向力采用水力平衡法，軸封采用特殊設計的機械密封，如需拆裝機械密封時，不需拆下電機，把中間夾殼聯軸器拆開便可以取出密封件，具有更換，維修方便的優點；泵的傳動是通過夾殼聯軸器由立式電機驅動，從電機端看，泵為順時針方向旋轉；泵的進水口在下方，出水口在上方，其相對位置可根據用戶的要求選擇0°、90°、180°、270°之一進行裝配出廠， 一般按180°出廠。
產品特征
1、結構緊湊、體積小、占地面積小。
2、更換易損件(機械密封)方便。
3、裝配無需調整，拆檢維修方便、即“便拆”，不需拆卸電機。
4、采用水力自平衡方式抵消絕大部分軸向力，軸承僅承受較小部分殘余軸向力。
5、噪聲低、振動小，運轉平穩。
6、主要磨損件采用優質耐磨材料制造。
7、機械密封特殊設計，密封性好、壽命長。
8、采用熱水型專用機械密封，可抽送低于120℃的熱水
工作條件
1）可輸送清水或物理化學性質類似于清水的無腐蝕性介質，其固體不容物體積不超過單位體積的0.1%，如介質帶有細小顆粒的請在定貨時予以說明。
2）介質溫度：-15℃~+120℃； （LG-B低于80℃； LG-B（R）低于120℃）。
3）系統工作壓力不大于2.5MPa。
4）周圍環境的溫度應低于40℃，相對濕度低于95%。LG-B便拆式多級離心泵
型號意義
結構說明
本型泵是立式多級節段式結構，用拉桿螺柱把進水段、中段、出水段緊固成一體，每級裝一個葉輪及導葉，其軸向力采用水力平衡法，軸封采用特殊設計的機械密封，如需拆裝機械密封時，不需拆下電機，把中間夾殼聯軸器拆開便可以取出密封件，具有更換，維修方便的優點；泵的傳動是通過軸器由立式電機驅動，從電機端看，泵為順時針方向旋轉；泵的進水口在下方，出水口在上方，其相對位置可根據用戶的要求選擇0°、90°、180°、270°之一進行裝配出廠， 一般按180°出廠。
性能參數表
|
|
型號
|
級數
|
流量
m3/h
|
揚程
m
|
效率
%
|
電機功率
kW
|
轉速
r/min
|
必需汽蝕
余量
m
|
重量
kg
|
|
25LG3-10
|
2
|
2.4
|
20.8
|
38
|
0.75
|
2900
|
2
|
70
|
|
3
|
20
|
42
|
|
4.7
|
15.4
|
44
|
|
3
|
2.4
|
31.2
|
38
|
1.1
|
2900
|
2
|
74
|
|
3
|
30
|
42
|
|
4.7
|
23.1
|
44
|
|
4
|
2.4
|
41.6
|
38
|
1.5
|
2900
|
2
|
85
|
|
3
|
40
|
42
|
|
4.7
|
30.8
|
44
|
|
5
|
2.4
|
52
|
38
|
1.5
|
2900
|
2
|
89
|
|
3
|
50
|
42
|
|
4.7
|
38.5
|
44
|
|
6
|
2.4
|
62.4
|
38
|
2.2
|
2900
|
2
|
100
|
|
3
|
60
|
42
|
|
4.7
|
46.2
|
44
|
|
7
|
2.4
|
72.8
|
38
|
2.2
|
2900
|
2
|
104
|
|
3
|
70
|
42
|
|
4.7
|
53.9
|
44
|
|
8
|
2.4
|
83.2
|
38
|
2.2
|
2900
|
2
|
108
|
|
3
|
80
|
42
|
|
4.7
|
61.6
|
44
|
|
9
|
2.4
|
93.6
|
38
|
2.2
|
2900
|
2
|
112
|
|
3
|
90
|
42
|
|
4.7
|
69.3
|
44
|
|
10
|
2.4
|
104
|
38
|
3
|
2900
|
2
|
125
|
|
3
|
100
|
42
|
|
4.7
|
77
|
44
|
|
11
|
2.4
|
114.4
|
38
|
3
|
2900
|
2
|
129
|
|
3
|
110
|
42
|
|
4.7
|
84.7
|
44
|
|
12
|
2.4
|
124.8
|
38
|
4
|
2900
|
2
|
145
|
|
3
|
120
|
42
|
|
4.7
|
92.4
|
44
|
|
13
|
2.4
|
135.2
|
38
|
4
|
2900
|
2
|
149
|
|
3
|
130
|
42
|
|
4.7
|
100.1
|
44
|
|
14
|
2.4
|
145.6
|
38
|
4
|
2900
|
2
|
153
|
|
3
|
140
|
42
|
|
4.7
|
107.8
|
44
|
|
15
|
2.4
|
156
|
38
|
4
|
2900
|
2
|
157
|
|
3
|
150
|
42
|
|
4.7
|
115.5
|
44
|
|
32LG6.5-15
|
2
|
4.5
|
32.6
|
47
|
1.5
|
2900
|
2.2
|
90
|
|
6.5
|
30
|
53
|
2.4
|
|
9.5
|
23
|
50
|
2.6
|
|
3
|
4.5
|
48.9
|
47
|
2.2
|
2900
|
2.2
|
100
|
|
6.5
|
45
|
53
|
2.4
|
|
9.5
|
34.5
|
50
|
2.6
|
|
4
|
4.5
|
65.5
|
47
|
3.0
|
2900
|
2.2
|
115
|
|
6.5
|
60
|
53
|
2.4
|
|
9.5
|
6
|
50
|
2.6
|
|
5
|
4.5
|
81.5
|
47
|
4.0
|
2900
|
2.2
|
135
|
|
6.5
|
75
|
53
|
2.4
|
|
9.5
|
57.5
|
50
|
2.6
|
|
6
|
4.5
|
97.8
|
47
|
4.0
|
2900
|
2.2
|
142
|
|
6.5
|
90
|
53
|
2.4
|
|
9.5
|
69
|
50
|
2.6
|
|
7
|
4.5
|
114.1
|
47
|
5.5
|
2900
|
2.2
|
175
|
|
6.5
|
105
|
53
|
2.4
|
|
9.5
|
80.5
|
50
|
2.6
|
|
8
|
4.5
|
130.4
|
47
|
5.5
|
2900
|
2.2
|
182
|
|
6.5
|
120
|
53
|
2.4
|
|
9.5
|
92
|
50
|
2.6
|
|
9
|
4.5
|
146.7
|
47
|
5.5
|
2900
|
2.2
|
189
|
|
6.5
|
135
|
53
|
2.4
|
|
9.5
|
103.5
|
50
|
2.6
|
|
10
|
4.5
|
163
|
47
|
7.5
|
2900
|
2.2
|
196
|
|
6.5
|
150
|
53
|
2.4
|
|
9.5
|
115
|
50
|
2.6
|
|
40LG6-15
|
2
|
4.2
|
34
|
45
|
1.5
|
2900
|
2.2
|
90
|
|
6
|
30
|
53
|
2.4
|
|
7.2
|
24
|
50
|
2.6
|
|
3
|
4.2
|
51
|
45
|
2.2
|
2900
|
2.2
|
100
|
|
6
|
45
|
53
|
2.4
|
|
7.2
|
36
|
50
|
2.6
|
|
4
|
4.2
|
68
|
45
|
2.2
|
2900
|
2.2
|
115
|
|
6
|
60
|
53
|
2.4
|
|
7.2
|
48
|
50
|
2.6
|
|
5
|
4.2
|
85
|
45
|
3
|
2900
|
2.2
|
130
|
|
6
|
75
|
53
|
2.4
|
|
7.2
|
60
|
50
|
2.6
|
|
6
|
4.2
|
102
|
45
|
3
|
2900
|
2.2
|
138
|
|
6
|
90
|
53
|
2.4
|
|
7.2
|
72
|
50
|
2.6
|
|
7
|
4.2
|
119
|
45
|
4
|
2900
|
2.2
|
145
|
|
6
|
105
|
53
|
2.4
|
|
7.2
|
84
|
50
|
2.6
|
|
8
|
4.2
|
136
|
45
|
4
|
2900
|
2.2
|
152
|
|
6
|
120
|
53
|
2.4
|
|
7.2
|
96
|
50
|
2.6
|
|
9
|
4.2
|
153
|
45
|
5.5
|
2900
|
2.2
|
190
|
|
6
|
125
|
53
|
2.4
|
|
7.2
|
108
|
50
|
2.6
|
|
10
|
4.2
|
165
|
45
|
5.5
|
2900
|
2.2
|
197
|
|
6
|
150
|
53
|
2.4
|
|
7.2
|
120
|
50
|
2.6
|
|
11
|
4.2
|
189
|
45
|
7.5
|
2900
|
2.2
|
210
|
|
6
|
165
|
53
|
2.4
|
|
7.2
|
132
|
50
|
2.6
|
|
12
|
4.2
|
204
|
45
|
7.5
|
2900
|
2.2
|
218
|
|
6
|
180
|
53
|
2.4
|
|
7.2
|
144
|
50
|
2.6
|
|
40LG12-15
|
2
|
9
|
32
|
55
|
2.2
|
2900
|
2.2
|
90
|
|
12
|
30
|
60
|
2.9
|
|
18
|
24
|
63
|
4.3
|
|
3
|
9
|
48
|
55
|
3.0
|
2900
|
2.2
|
105
|
|
12
|
45
|
60
|
2.9
|
|
18
|
36
|
63
|
4.3
|
|
4
|
9
|
64
|
55
|
4.0
|
2900
|
2.2
|
130
|
|
12
|
60
|
60
|
2.9
|
|
18
|
48
|
63
|
4.3
|
|
5
|
9
|
80
|
55
|
5.5
|
2900
|
2.2
|
155
|
|
12
|
75
|
60
|
2.9
|
|
18
|
60
|
63
|
4.3
|
|
6
|
9
|
96
|
55
|
5.5
|
2900
|
2.2
|
163
|
|
12
|
90
|
60
|
2.9
|
|
18
|
72
|
63
|
4.3
|
|
7
|
9
|
112
|
55
|
7.5
|
2900
|
2.2
|
180
|
|
12
|
105
|
60
|
2.9
|
|
18
|
84
|
63
|
4.3
|
|
8
|
9
|
128
|
55
|
7.5
|
2900
|
2.2
|
190
|
|
12
|
120
|
60
|
2.9
|
|
18
|
96
|
63
|
4.3
|
|
50LG18-15
|
2
|
9
|
144
|
55
|
11
|
2900
|
2.2
|
210
|
|
12
|
135
|
60
|
42.9
|
|
18
|
108
|
63
|
4.3
|
|
3
|
9
|
160
|
55
|
11
|
2900
|
2.2
|
220
|
|
12
|
150
|
60
|
2.9
|
|
18
|
120
|
63
|
4.3
|
|
4
|
9
|
44
|
67
|
4
|
2950
|
2.85
|
140
|
|
12
|
40
|
69
|
3.15
|
|
18
|
33
|
64
|
3.4
|
|
5
|
9
|
66
|
67
|
5.5
|
2950
|
2.85
|
170
|
|
12
|
60
|
69
|
3.15
|
|
18
|
49.5
|
64
|
3.4
|
|
6
|
9
|
88
|
67
|
7.5
|
2950
|
2.85
|
200
|
|
12
|
80
|
69
|
3.15
|
|
18
|
66
|
64
|
3.4
|
|
7
|
9
|
110
|
67
|
11
|
2950
|
2.85
|
260
|
|
12
|
100
|
69
|
3.15
|
|
18
|
82.5
|
64
|
3.4
|
|
8
|
9
|
132
|
67
|
11
|
2950
|
2.85
|
275
|
|
12
|
120
|
69
|
3.15
|
|
18
|
99
|
64
|
3.4
|
|
9
|
9
|
154
|
67
|
15
|
2950
|
2.85
|
290
|
|
12
|
140
|
69
|
3.15
|
|
18
|
115.5
|
64
|
3.4
|
|
10
|
9
|
176
|
67
|
15
|
2950
|
2.85
|
305
|
|
12
|
160
|
69
|
3.15
|
|
18
|
132
|
64
|
3.4
|
|
50LG24-20
|
2
|
18
|
44
|
67
|
5.5
|
2950
|
2.85
|
160
|
|
24
|
40
|
69
|
3.15
|
|
30
|
33
|
64
|
3.40
|
|
3
|
18
|
66
|
67
|
7.5
|
2950
|
2.85
|
180
|
|
24
|
60
|
69
|
3.15
|
|
30
|
49.5
|
64
|
3.40
|
|
4
|
18
|
88
|
67
|
11
|
2950
|
2.85
|
250
|
|
24
|
80
|
69
|
3.15
|
|
30
|
66
|
64
|
3.40
|
|
5
|
18
|
110
|
67
|
11
|
2950
|
2.85
|
260
|
|
24
|
100
|
69
|
3.15
|
|
30
|
82.5
|
64
|
3.40
|
|
6
|
18
|
132
|
67
|
15
|
2950
|
2.85
|
280
|
|
24
|
120
|
69
|
3.15
|
|
30
|
99
|
64
|
3.40
|
|
7
|
18
|
154
|
67
|
15
|
2950
|
2.85
|
290
|
|
24
|
140
|
69
|
3.15
|
|
30
|
115.5
|
64
|
3.40
|
|
8
|
18
|
176
|
67
|
18.5
|
2950
|
2.85
|
310
|
|
24
|
160
|
69
|
3.15
|
|
30
|
132
|
64
|
3.40
|
|
65LG25-20
|
2
|
18
|
44
|
67
|
5.5
|
2950
|
2.6
|
160
|
|
25
|
40
|
69
|
3.4
|
|
30
|
34
|
64
|
4.2
|
|
3
|
18
|
66
|
67
|
7.5
|
2950
|
2.6
|
180
|
|
25
|
60
|
69
|
3.4
|
|
30
|
51
|
64
|
4.2
|
|
4
|
18
|
88
|
67
|
11
|
2950
|
2.6
|
260
|
|
25
|
80
|
69
|
3.4
|
|
30
|
68
|
64
|
4.2
|
|
5
|
18
|
110
|
67
|
15
|
2950
|
2.6
|
280
|
|
25
|
100
|
69
|
3.4
|
|
30
|
85
|
64
|
4.2
|
|
6
|
18
|
132
|
67
|
15
|
2950
|
2.6
|
290
|
|
25
|
120
|
69
|
3.4
|
|
30
|
102
|
64
|
4.2
|
|
7
|
18
|
154
|
67
|
18.5
|
2950
|
2.6
|
330
|
|
25
|
140
|
69
|
3.4
|
|
30
|
119
|
64
|
4.2
|
|
8
|
18
|
176
|
67
|
18.5
|
2950
|
2.6
|
340
|
|
25
|
160
|
69
|
3.4
|
|
30
|
136
|
64
|
4.2
|
|
65LG36-20
|
2
|
27
|
45.5
|
70
|
7.5
|
2950
|
2.6
|
170
|
|
36
|
40
|
72.5
|
3.4
|
|
43.2
|
34
|
67
|
4.2
|
|
3
|
27
|
68.25
|
70
|
11
|
2950
|
2.6
|
230
|
|
36
|
60
|
72.5
|
3.4
|
|
43.2
|
51
|
67
|
4.2
|
|
4
|
27
|
91
|
70
|
15
|
2950
|
2.6
|
250
|
|
36
|
80
|
72.5
|
3.4
|
|
43.2
|
68
|
67
|
4.2
|
|
5
|
27
|
113.75
|
70
|
18.5
|
2950
|
2.6
|
280
|
|
36
|
100
|
72.5
|
3.4
|
|
43.2
|
85
|
67
|
4.2
|
|
6
|
27
|
136.5
|
70
|
22
|
2950
|
2.6
|
330
|
|
36
|
120
|
72.5
|
3.4
|
|
43.2
|
102
|
67
|
4.2
|
|
7
|
27
|
159.25
|
70
|
22
|
2950
|
2.6
|
340
|
|
36
|
140
|
72.5
|
3.4
|
|
43.2
|
119
|
67
|
4.2
|
|
8
|
27
|
182
|
70
|
30
|
2950
|
2.6
|
360
|
|
36
|
160
|
72.5
|
3.4
|
|
43.2
|
136
|
67
|
4.2
|
|
80LG40-20
|
2
|
30
|
44
|
70
|
7.5
|
2950
|
2.6
|
235
|
|
40
|
40
|
73
|
3.4
|
|
52
|
34
|
68
|
4.2
|
|
3
|
30
|
66
|
70
|
11
|
2950
|
2.6
|
260
|
|
40
|
60
|
73
|
3.4
|
|
52
|
51
|
68
|
4.2
|
|
4
|
30
|
88
|
70
|
15
|
2950
|
2.6
|
290
|
|
40
|
80
|
73
|
3.4
|
|
52
|
68
|
68
|
4.2
|
|
5
|
30
|
110
|
70
|
18.5
|
2950
|
2.6
|
345
|
|
40
|
100
|
73
|
3.4
|
|
52
|
85
|
68
|
4.2
|
|
6
|
30
|
132
|
70
|
22
|
2950
|
2.6
|
410
|
|
40
|
120
|
73
|
3.4
|
|
52
|
102
|
68
|
4.2
|
|
7
|
30
|
154
|
70
|
30
|
2950
|
2.6
|
460
|
|
40
|
140
|
73
|
3.4
|
|
52
|
119
|
68
|
4.2
|
|
8
|
30
|
176
|
70
|
30
|
2950
|
2.6
|
470
|
|
40
|
160
|
73
|
3.4
|
|
52
|
136
|
68
|
4.2
|
|
80LG50-20
|
2
|
40
|
43.6
|
70
|
11
|
2950
|
3.1
|
250
|
|
50
|
40
|
75
|
3.8
|
|
68.4
|
31.7
|
70
|
5.3
|
|
3
|
40
|
65.4
|
70
|
15
|
2950
|
3.1
|
280
|
|
50
|
60
|
75
|
3.8
|
|
68.4
|
47.5
|
70
|
5.3
|
|
4
|
40
|
87.2
|
70
|
18.5
|
2950
|
3.1
|
310
|
|
50
|
80
|
75
|
3.8
|
|
68.4
|
63.4
|
70
|
5.3
|
|
5
|
40
|
109
|
70
|
22
|
2950
|
3.1
|
360
|
|
50
|
100
|
75
|
3.8
|
|
68.4
|
79.25
|
70
|
5.3
|
|
6
|
40
|
130.8
|
70
|
30
|
2950
|
3.1
|
440
|
|
50
|
120
|
75
|
3.8
|
|
68.4
|
95.1
|
70
|
5.3
|
|
7
|
40
|
152.6
|
70
|
30
|
2950
|
3.1
|
460
|
|
50
|
140
|
75
|
3.8
|
|
68.4
|
111.95
|
70
|
5.3
|
|
8
|
40
|
174.5
|
70
|
37
|
2950
|
3.1
|
490
|
|
50
|
160
|
75
|
3.8
|
|
68.4
|
128.8
|
70
|
5.3
|
|
100LG72-20
|
2
|
54
|
49.4
|
70.6
|
15
|
2950
|
3.1
|
260
|
|
72
|
40
|
73.3
|
3.5
|
|
90
|
31.6
|
68
|
3.8
|
|
3
|
54
|
74
|
70.6
|
18.5
|
2950
|
3.1
|
290
|
|
72
|
60
|
73.3
|
3.5
|
|
90
|
47
|
68
|
3.8
|
|
4
|
54
|
99
|
70.6
|
30
|
2950
|
3.1
|
380
|
|
72
|
80
|
73.3
|
3.5
|
|
90
|
63
|
68
|
3.8
|
|
5
|
54
|
124
|
70.6
|
30
|
2950
|
3.1
|
450
|
|
72
|
100
|
73.3
|
3.5
|
|
90
|
79
|
68
|
3.8
|
|
6
|
54
|
148
|
70.6
|
37
|
2950
|
3.1
|
470
|
|
72
|
120
|
73.3
|
3.5
|
|
90
|
95
|
68
|
3.8
|
|
7
|
54
|
173
|
70.6
|
45
|
2950
|
3.1
|
520
|
|
72
|
140
|
73.3
|
3.5
|
|
90
|
110
|
68
|
3.8
|
|
8
|
54
|
198
|
70.6
|
55
|
2950
|
3.1
|
540
|
|
72
|
160
|
73.3
|
3.5
|
|
90
|
126
|
68
|
3.8
|
|
|
|
