LB长轴泵样本

LB、LK立式长轴泵
Vertical Mixed Flow Pump
产品概述
LK、LB型立式长轴泵适用于电厂、钢厂、自来水公司、污水处理厂、石油化工、矿山等工矿企业，以及市政给排水工程、农业灌溉、防洪排涝等工程。

可以用来输送55℃以下的清水、雨水、铁皮坑水、污水以及海水
等介质，流量范围30-70000m³/h，扬程范围7-200m。

特殊设计的输送介质温度可达90℃。

Description
The said series pumps are used to transfer clear water,rain water,water in iron sheet pits,sewage and seawater,servicing in power plants,iron and steel works,water supply companies,sewage treatment plants,petroleum and chemical industries,mines as well as municipal water supply and drainage projects,farmlands irriagation,flood protection and drain waterlogged farmlands,etc..The temperature of pumped media is below 550C and reaches to 900C for special design. The flow rate ranges from 30 to 20000m3/h and the head—from 7 to 200m.
产品特点
1、运行平稳，安全可靠，免抽真空启动，使用寿命周期长。

2、泵体积小，基础占地面积少，基础以下泵长度可以调整，适应性强。

3、流道简单可靠，节省泵房基建投资。

4、结构合理，装拆方便，维护检修容易简便。

5、泵效率高，降低运行成本。

Features
1.Operation smooth,safe and reliable,starting without exhausting vacumn,service life long.
2.The volumn of the pump small,less occupied land area, the length under foundation
adjustable,applicability strong.
3.Flowing channel simple and reliable,saving the investment for construction of the pump house.
4.Structure reasonable,convenient for mounting and dismantling,,easy to maintain and inspect.
5.Efficiency high, operating cost reduced.
型号说明
1400LK—30Ⅰ500LB—55.3Ⅰ(×2、3)
1400——泵吐出口径1400mm 500——泵吐出口径500mm
L———立式长轴泵L———立式长轴泵
K———转子可抽芯B———转子不可抽芯
30———泵的设计扬程55.3———泵的设计扬程
Ⅰ———泵设计顺序（第一次设计无标示）Ⅰ———泵设计顺序（第一次设计无标示）
注：对于大口径泵，一般不设计多级形式×2———表示泵的级数为2级
1400LK-30Ⅰ 500LB-55.3Ⅰ(×2、3)
1400—Outlet of the pump:1400mm 500—Outlet of the pump:500mm
L----Vertical mixed flow pump L---Vertical mixed flow pump
K----Pull-out rotor B---Non pull-out rotor
30---Design head 55.3---Design head
Ⅰ---Pump design class(no mark when Ⅰ---Pump design class(no mark when first time design) first time design)
Remarks: multistage type is usually ×2-- Stage number
Not designed for the pump of large
nozzle diameter.
产品结构说明
1、LK、LB型泵为立式单级（多级）离心式或斜流式带导叶体结构。

2、泵的结构型式有泵吐出口在安装基础之上和之下(型式代号分别为S和X)、泵承受轴向力和电机承受轴
向力(型式代号分别为T和D)、外接润滑水和泵自身润滑等形式。

3、泵安装型式有湿坑式安装或干坑式安装。

湿坑式安装：泵下部浸没在吸水池中。

干坑式安装：泵采用管道进水，泵吸入喇叭口与进水管道之间采用90°肘形进水弯管联接。

4、泵轴承为橡胶导轴承或赛龙导轴承。

5、泵口径在1000mm以下时，泵转子一般为不可抽形式；泵轴向水推力及转子重量一般由泵本体推力轴承
承受，泵和电机之间采用弹性联接；泵吐出口位于安装面基础之上（型式代号为ST的结构形式）。

如有要求，也可以由电机承受轴向水推力及转子重量；或其它结构形式的组合（型式代号为SD、XT、XD）;
用户如有要求，也可以设计成可抽式结构形式。

泵口径在1000mm以上时，泵转子一般为可抽形式；泵
轴向水推力及转子重量一般由电机推力轴承承受，泵和电机之间采用刚性联接；泵吐出口位于安装面基
础之下（型式代号为XD）。

如有要求，也可以由泵承受轴向水推力及转子重量；或其它结构形式的组合
（型式代号为XT、SD、ST）。

用户如有要求，也可以设计成不可抽式结构形式。

6、泵本体承受轴向水推力及转子重量时，泵推力轴承采用稀油润滑，推力轴承部件带Pt100测温元件测轴
承温度或压力式温度计测润滑油温度。

7、泵轴向密封采用填料密封。

8、在泵安装基础上可以进行叶轮与叶轮室（转动部分与静止部分）之间间隙的调整，操作方便。

9、从吐出方向往泵看，电机接线盒与泵外接润滑水接管位于左侧。

也可根据用户要求，布置在其它方位。

Structure feature:
1. Series LK ,LB pumps are of vertical single stage and/or multistage centrifugal or
mixed flow with diffuser types.
2. The following structure types are available for the pump:the discharge opening above
and/or under the mounting foundation(Type Code named S and X respectively);the axial thrust force born by the pump and/or by the motor(Type Code named T and D);lubricating water from outside and/or from the pump itself.
3. The intake sump is of wet pit and/or dry pit types.
Wet pit type:lower part of the pump inundated in the intake sump.
Dry pit type:the water enters into the pump,the suction bellmouth is connected with the inlet pipe of the pump by means of elbow bend pipe of 900.
4. Rubber guide bearings and /or the Thordon guide bearings are available for bearings
of the pump.
5. Generally when the nozzle diameter of the pump is under 1000mm , non pull-out type
is adopted for the rotor and the discharge opening is above the mounting foundation(Type Code named ST). In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the pump itself and flexible connection is adopted between the pump and the motor.The thrust force and the weight of the rotor can also be born by the motor if required,or other structure types such as SD,XT,XD are available .Rotor pull-out type can also be adopted if required by clients.
Generally when the discharge diameter of the pump is above 1000mm, pull-out type is adopted for the rotor and the discharge opening is under the mounting foundation(Type Code named XD).In this case the axial thrust force and the weight of the rotor are usually born by thrust bearings of the motor and rigid connection is adopted between the pump and the motor. The axial thrust force and the weight of the rotor can also be born by the pump if required,or other structure types such as XT,SD,ST are available .Rotor non pull-out type can also be adopted if required by clients.
6. When the axial thrust force and the weight of the rotor are born by pump itself,the
thrust bearing of the pump is lubricated with dilute oil and is equipped with a temperature detector Pt100 to detect bearing temperature and a pressure type thermometer to detect the temperature of lubricating oil.
7. The antielectrochemical corrosion appliance is adopted for the part of the pump
contacting the liquid to ensure the service life of the pump when seawater is pumped.
8. The packing seal is adopted for the axial seal of the pump.
9. The clearance between the impeller and the impeller chamber,i.e.the rotating
component and the static component,can be easily adjusted on the pump mounting foundation.
产品主要零部件材质Materials Of Major Parts
注：根据用户具体使用要求，可另选其它适合材质。

铸铁材质叶轮只适用于闭式叶轮。

Remarks:Other materials are available at the request of clients.Cast iron is suitable only for closed type impeller.
1、吸入喇叭口Suction bellmouth
2、叶轮Impeller
3、导叶体diffuser
4、下外接管External column(lower)
5、下内接管Internal column(lower)
6、轴承支架Bearing bracket
7、上外接管External column(upper)
8、上内接管Internal column(upper)
9、安装垫板Mounting plate
10、吐出弯管Discharge elbow
11、电机支座Motor support
12、泵联轴器Pump coupling
13、电机联轴器Motor coupling
14、叶轮室Shroud
15、密封环Wearing ring
16、下导轴承Guide bearing(lower)
17、下主轴Main shaft(lower)
18、中导轴承Guide bearing(mid.)
19、套筒联轴器部件Sleeve
coupling assembly
20、上主轴Main shaft(upper)
21、填料函部件Packing box
assembly
22、推力轴承部件Thrust bearing
assembly
1、入口滤网Filter at entrance
2、叶轮Impeller
3、导叶体Diffuser
4、下外接管External column(lower)
5、扩散管Increaser
6、中外接管External column(mid.)
7、轴承支架Bearing bracket
8、安装垫板Mounting plate
9、泵支撑板Pump baseplate
10、吐出弯管Discharge elbow
11、泵盖板Pump cover plate
12、轴承座Bearing carrier
13、电机支座Motor support
14、泵联轴器Pump coupling
15、电机联轴器Motor coupling
16、吸入喇叭口Suction
bellmouth
17、叶轮室Shroud
18、密封环Wearing ring
19、下导轴承Guide
bearing(lower)
20、泵主轴Main shaft
21、内接管Internal column
22、上导轴承Guide
bearing(upper)
23、套筒联轴器部件Sleeve
coupling assembly
24、填料函部件Packing box
assembly
25、排气阀Exhaust valve
26、推力轴承部件Thrust bearing
assembly
LK型立式长轴泵结构简图(型式:XD)Sectional Arrangement Of Type LK(Type XD)
1、叶轮Impeller Array
2、下导轴承
Guide bearing(lower)
3、导叶体Diffuser
4、下内接管
Internal column(lower) 5、下主轴
Main shaft(lower)
6、轴承支架
Bearing bracket
7、电机支座
Motor bracket 8、导流片接管
Guide vane connecting
pipe
9、上主轴
Main shaft(upper) 10、泵支撑板
Pump baseplate 11、泵联轴器
Pump coupling 12、调整螺母Adjusting
nut
13、电机联轴器
Motor coupling 14、吸入喇叭口
Suction ellmouth
15、叶轮室Shroud
16、下外接管
Externalcolumn(lower )
17、中外接管
External
column(mid.)
18、中导轴承
Guide bearing(mid.) 19、吐出弯管
Discharge elbow
20、导流片Guide vane
21、上外接管
External
column(upper)
22、安装垫板
Mounting plate 23、泵盖板
Pump cover plate 24、排气阀Exhaust
valve
25、填料函部件
Packing box assembly
LB型立式长轴泵两级结构简图(型式:ST)Sectional Arrangement Of Type LB With Two Stages(Type ST)
1、吸入喇叭口
Suction bellmouth
2、首级叶轮
First stage impeller 3、首级导叶体
First stage diffuser 4、次级叶轮
Second stage impeller 5、次级导叶体
Second stage diffuser 6、下导轴承
Guide bearing(lower) 7、下外接管
External column(lower) 8、中主轴
Main shaft(mid.) 9、中外接管
External column(mid.)
10、安装垫板
Mounting plate 11、吐出弯管
Discharge elbow 12、电机支架
Motor Bracket 13、泵联轴器
Pump coupling 14、电机联轴器
Motor coupling 15、推力轴承部件
Thrust bearing
assembly
16、填料函部件
Packing box
assembly
17、上主轴
Main shaft（upper）18、套筒联轴器
Sleeve coupling
19、中导轴承
Guide bearing（mid.）20、轴承支架
Bearing bracket 21、下主轴
Main shaft（lower）22、密封环
Wearing ring
泵性能参数表Performance Data
上表所列参数不能满足用户参数要求时，请与公司技术部联系。

Please contact with us when the above parameters can’t meet the need of customers.
100LB-20.812.5
17.522.527.50
10
20
30
40
50
60H Pa
NPSHr
η
H (m )
η(%)
8040206001
35
4
8
N P S H r (m )
P a (k W )
Q(m/h)
100LB-16.110
1418
22
50
100
150
200H
Pa NPSHr
100LB-27.50
1525
35
020*********H
Pa
NPSHr
N P S H r (m )
P a (k W )H (m )
η(%)
H (m )
Q(m/h)
N P S H r (m )
P a (k W )
20
102
4604255142868η(%)
82η
Q(m/h)
P a (k W )
N P S H r (m )H (m )
η(%)
η
1455
68
284210
6
2
684
100LB-36.401327405367
80
20406080100120140
H
Pa NPSHr
5
15253545
01020
4
86H N P S H r (m )00
1455
28
42H (m )
20
60
40
80
4
100Q(m/h)
NPSHr
Pa
20
12
4
680η(%)
68
70
3050
60402035η(%)
80H (m )
25
100LB-27.5X220
10
30
H
η
P a (k W )
40
50
60Q(m/h)
N P S H r (m )
η
NPSHr
4
8
Pa
2
610
4555100LB-20.8X2P a (k W )
H
N P S H r (m )NPSHr
14020
4228
55
H (m )
40
80
60
Q(m/h)
1004
8
66
1830
Pa
NPSHr
068
η(%)
75
45105
10
0LB-27.5X30130
20
50
40
20406080η(%)
37.5
H (m )
52.5P a (k W )
η
H
Q(m/h)
60η
N P S H r (m )
8
4
15
9
3
Pa
82.567.5100LB-20.8X3P a (k W )
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=1480rpm)
η
LB、LK型泵性能曲线
150LB-15.30
2550
14
24
34
050100150200250H
Pa NPSHr
150LB-12.40208121620
240
50
100
150
200H Pa NPSHr
N P S H r (m )
P a (k W )
Q(m/h)
η(%)
H (m )
η
H (m )
η(%)
Q(m/h)
N P S H r (m )
P a (k W )
η
75
616 1.5
2.5
40
6080260.8
1.200
40
132710H (m )
20408060120100140Pa NPSHr
84
6200
807053673050η(%)
90
100LB-36.4X2H 40
P a (k W )N P S H r (m )
NPSHr
120200
0271340
H (m )
15604010080140
3064
8Pa
1058067537545η(%)
135
100LB-36.4X3N P S H r (m )
P a (k W )60
H
150LB-12.4X2608040
η(%)
H (m )
0203224164840
NPSHr
50
100
150
40.8
200Q(m/h)
N P S H r (m )
η
P a (k W )
Pa H 121.275
25
50
η(%)
48
28
H (m )
68
32
2.5
150050100200250Q(m/h)
Pa
NPSHr
12 1.5
LB-15.3X2150H
P a (k W )
η
N P S H r (m )
LB-12.4X3015H (m )
200
010050150
4880243640
606072
η(%)
NPSHr
Q(m/h)
0.8
2006P a (k W )
η
N P S H r (m )
1.218H Pa 200
50
50
00
25
100
150
72
H (m )
42
75
102
η(%)
LB-15.3X3015 2.5
48
Q(m/h)
250 1.5
18NPSHr
Pa N P S H r (m )
H
η
P a (k W )
(n=2980rpm)
(n=2980rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
ηη
150LB-63.75060
7080
50
100
150
200
250
300
350Q(m/h)
H
Pa NPSHr H (m )
P a (k W )
040206080η(%)
1030
70
5012
8
N P S H r (m )
3
η
150LB-21.302
4610
14182226
50
100
150
200
250H
Pa NPSHr
N P S H r (m )
P a (k W )
Q(m/h)
3
H (m )
η(%)
155
25
146882
284255η
200LB-12.3020
40608010
20300
100
200
300
400
500
H Pa
NPSHr
200LB-11.1020
4060805
10
15
200
100
200
300
400
500H
Pa NPSHr
Q(m/h)
N P S H r (m )
η
H (m )
Q(m/h)
3
η(%)
P a (k W )
N P S H r (m )
η
H (m )
3
η(%)
P a (k W )
10
204
6
5
1015
3
45150LB-48.20204060800
50
100
150
20030
405060
35
152512
8
4
H (m )
η(%)
Q(m/h)
3
N P S H r (m )
P a (k W )
ηH
Pa
NPSHr
00
20
100502001503002508
350Q(m/h)
3
12
504040
60H (m )
80η(%)
100120
140
160020100N P S H r (m )
NPSHr η
12
2060
H
Pa P a (k W )
140
50100150LB-63.7X2150200NPSHr
30Q(m/h)
3
4
8η(%)
608060
80H (m )
100
120
150LB-48.2X2P a (k W )
η
Pa
70
N P S H r (m )
H 407512
NPSHr
500
20015010020084
3
Q(m/h)
45η(%)
H (m )
12090
8060180
150
Pa
η150LB-48.2X3H
P a (k W )
N P S H r (m )
105
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=2980rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
200LB-49.4X30
50
75
02004006008001000H
Pa NPSHr
200LB-23.4020406080
40
800
100
200
300
400
500Pa NPSHr
200LB-18.9025
50
1424
34
50
100
150
200
250
300
350Pa
NPSHr
N P S H r (m )
P a (k W )
H (m )
η(%)
Q(m/h)
η
600
350
100
13
8
200
150
100
25
P a (k W )
N P S H r (m )
Q(m/h)
H (m )
η(%)
Q(m/h)
P a (k W )
N P S H r (m )
H (m )
80
402
4η
H
η
H
75
η(%)
26
166
2.5
1.5
200LB-37.3x3010
2030
40506070
80
90
100
100200300400500600H
Pa NPSHr
P a (k W )
N P S H r (m )
Q(m/h)
120100110
90130200
1003004
68
η(%)
025
50
75
H (m )
48
2868
η
N P S H r (m )
200
100
50
150
300
250
350Q(m/h)
NPSHr
Pa
32 2.5
12 1.5
LB-18.9X23000100200200P a (k W )
H
52
400500Q(m/h)
80
η(%)
2040
60H (m )
160
80
Pa 80
4NPSHr
2
η
N P S H r (m )
160
LB-23.4X2200H
P a (k W )
40050
0H (m )
50
25
150
100
250
200
100427275
η(%)
102
0LB-18.9X3200020300N P S H r (m )
η
Q(m/h)
350300
1.5
2.5
1848Pa
NPSHr
78H
P a (k W )
Q(m/h)
50040
200
H (m )
6080
120
240
η(%)
LB-23.4X30204120
Pa 2
NPSHr
N P S H r (m )
240
η
P a (k W )
H
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
η
LB、LK型泵性能曲线
250LB-16.80
2040608002004006008001000H
Pa
NPSHr
250LB-15.2020406020
3040
10
20
300
100
200
300
400
500
600
700
800
H
Pa
NPSHr
250LB-13.70204060800
100
200
300
400
500
600
700H
Pa
NPSHr
N P S H r (m )η
H (m )
Q(m/h)
3
η(%)
P a (k W )N P S H r (m )η
H (m )Q(m/h)3
η(%)
P a (k W )N P S H r (m )
η
H (m )Q(m/h)
3
η(%)
P a (k W )
2010
3040
3020
4
8664
8802010
30
20
30
10
4
6
8(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
Q(m/h)
250LB-11.51030
4000
400
300
200
100
H
4010
2030908070605020
4060NPSHr
Pa 800
700
600
500
3
45103020400Q(m/h)
400
300
200
100
3
0204540NPSHr
Pa
700
600
500
(n=1480rpm)
η
80H
4010
20309080706050250LB-10.9(n=1480rpm)
H
Pa
H
100
1030204000
400
300
200
2
10
3452030Q(m/h)
NPSHr
Pa
600500
103020400100
(n=1480rpm)
4010
20309080706050250LB-10.2η
40
H
40
2010
3090
80706050NPSHr
400
300
200
10
203452
30
Q(m/h)
Pa
600500
103020400100
NPSHr
400
300
200
(n=1480rpm)
250LB-9.6η40H
402010
309080706050(n=1480rpm)
250LB-910
203
45230
Q(m/h)
500η
40η(%)
H (m )
P a (K W )
N P S H r (m )
P a (K W )N P S H r (m )η(%)
H (m )
N P S H r (m )
η(%)
H (m )
P a (K W )
N P S H r (m )
P a (K W )
η(%)
H (m )
N P S H r (m )
P a (K W )
η(%)H (m )
LB、LK型泵性能曲线
PERFORMANCE CURVES
250LB-35.6020406040
80
200
400
600
800
1000H
Pa
NPSHr
250LB-28.802040
6080
40
80
100
200
300
400
500
600
700H
Pa
NPSHr
N P S H r (m )
P a (k W )
Q(m/h)
3
H (m )
η(%)
η
Q(m/h)
P a (k W )
3
N P S H r (m )
η(%)
H (m )
η80
12040
802
440
80
2
40400
200
100
300
600
500
700Q(m/h)
3
NPSHr
6080
η(%)
2040
200
80
H (m )
160
P a (k W )
N P S H r (m )
160
NPSHr
Pa
2
80
4H
ηLB-28.8X260040002002501000Q(m/h)
800
2
3
804060η(%)
H (m )
160
80
LB-35.6X2250η
Pa
24080
4N P S H r (m )
160H
P a (k W )
100
0300
200
500
400
Q(m/h)
3
700600
NPSHr
800
60
40
20H (m )
120
η(%)
802000240
20400600LB-28.8X3025P a (k W )
240
N P S H r (m )
42
120
Pa
NPSHr
η
H Q(m/h)
10002
3
H (m )
604080120
240
η(%)
LB-35.6X3025η
N P S H r (m )
4
240
120360Pa
P a (k W )
H
(n=1480rpm)(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
103020
400200
Pa NPSHr
800600
400
3
4065420
60
7Q(m/h)
1000
4010
20
309080706050H
H
(n=1480rpm)
η
300LB-13804010
20
30103020
400300
200
100
NPSHr
Pa
700
600500
400
3
20454060Q(m/h)
800
300LB-12.39080706050H
(n=1480rpm)
η
H
80η(%)
H (m )
η(%)
H (m )
P a (K W )
N P S H r (m )
N P S H r (m )
P a (K W )
LB、LK型泵性能曲线
PERFORMANCE CURVES
300LB-65.3X3034
68
150
200
250
200400600800100012001400H
Pa
NPSHr
300LB-440204060
8040
80120
200
400
600
800
1000
1200
H
Pa NPSHr
Q(m/h)
N P S H r (m )
3
P a (k W )
H (m )
η(%)
N P S H r (m )
Q(m/h)3
P a (k W )
H (m )
η(%)
η
η
1000
500
10
1580
1201602
4300LB-20.602040608010
203040
200
400
600
800
1000
1200H
Pa
NPSHr
H (m )
3
Q(m/h)
η
N P S H r (m )
η(%)
P a (k W )
40
605010
86
300LB-18.60204060800
200
400
600
800
1000
1200H
Pa
NPSHr
N P S H r (m )
η
H (m )
Q(m/h)
3
η(%)
P a (k W )
10
40302050
4030
6
8
10N P S H r (m )
60
020400
200
400
600
800
1000
3
1200Q(m/h)
NPSHr
240
2
1604
η(%)
80160H (m )
80
240
030P a (k W )
H
Pa 320η
LB-44X2N P S H r (m )
100020000
402060
600400800Q(m/h)
12003
4
2402
360
NPSHr
240η(%)
120
H (m )
80360
LB-44X3300P a (k W )
η
480Pa H
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
1030
20400200
4010
20
309080706050(n=1480rpm)
800
NPSHr
800
600
400
40654
20
607Q(m/h)
Pa
1200
1000
103020400200
600
400
(n=1480rpm)
350LB-14.7η
80H
4010
20309080706050300LB-13.83
4065420
60
7Q(m/h)
NPSHr
Pa
1000
η
80H
P a (K W )
N P S H r (m )
η(%)
H (m )
P a (K W )
η(%)H (m )
N P S H r (m )
LB、LK型泵性能曲线
400LB-28.1020406080H
Pa
NPSHr
H (m )
η
N P S H r (m )
η(%)
P a (k W )
50
4030
2010
100
50
150
1086
(n=1480rpm)
(n=1480rpm)
NPSHr
1500
502030400100
1000
500
5040201030100
60
708090
400LB-21.2600
400LB-17.712012050Pa
500
5
87680
60
100Q(m/h)
2000
4010302000
NPSHr
Pa
1500
1000
6
7860
80
1005
Q(m/h)
2000
η140
H 5010203040100807060
90
(n=1480rpm)
η
H
400LB-2014012050501400
600
401030200400
200
NPSHr
Pa
1200
1000
800
6
7860
801005
Q(m/h)
1600
401030200400
200
5010203040100
80
7060
90
(n=1480rpm)
η
H
400LB-18.85010203040140100807060
901201400
NPSHr
Pa 1200
1000
800
67860
80100
5
(n=1480rpm)
ηH
140η
NPSHr
(n=1480rpm)
251510200
100
908070
60504030201001000
500
400LB-10.6Q(m /h)
η6070403050
1210
864
NPSHr
Pa H
2000
1500
25203010150
100
9080706050
403020100(n=1480rpm)
NPSHr
1500
1000
500
400LB-11.37.5
5
1012.560204080
Q(m /h)
Pa H
2000
2025155
10500
1009080
706050403020100
(n=1480rpm)
1500
1000
400LB-12Q(m /h)
η5107.5
12.580
100602040Pa H 2000
H (m )
P a (K W )
N P S H r (m )
η(%)
P a (K W )
N P S H r (m )
η(%)
H (m )
P a (K W )
N P S H r (m )
η(%)
H (m )
P a (K W )
N P S H r (m )
η(%)
H (m )
H (m )
H (m )
P a (K W )
N P S H r (m )
η(%)
η(%)
N P S H r (m )
P a (K W )
P a (K W )
N P S H r (m )
η(%)H (m )
LB、LK型泵性能曲线
400LB-6702040608040
801200
500
1000
1500
2000
2500H Pa
NPSHr
Q(m/h)
P a (k W )
N P S H r (m )
H (m )
η(%)
η
300100
5002
46400LB-54.901020304050406080100
500
1000
1500
2000
2500H Pa
NPSHr
Q(m/h)
η(%)
H (m )
P a (k W )
η
N P S H r (m )
60
7080250300
3508
1012
400LB-31.10204060800
500
1000
1500
2000
2500H
Pa
NPSHr
Q(m/h)
η
N P S H r (m )
η(%)
P a (k W )
403020
50H (m )
100
150
200
6
81012P a (k W )
η(%)
80020406016080
H (m )
200
NPSHr
2
46η
H Pa
N P S H r (m )
6001000240LB-67X2040(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=1480rpm)
(n=980rpm)
NPSHr
2000
5
6050403020100
1500
1000
500
151020100
9080
70500LB-9.7H Q(m/h)
40
8060100
2.5
57.5Pa
3000
2500
η(n=980rpm)
(n=980rpm)
500LB-8.1252015
105
500
10090
807060504030201002500
(n=980rpm)
2000
1500
1000
500LB-9.19080
60
50810
70
64
Q(m /h)
Pa
H 3000
5101520251000
500
1009080
70
60
50403020100Pa
H
2500
2000
1500
500LB-8.6108
4
650406070Q(m /h)
251015205
3000
1000
500
100
90807060504030201002500
Pa
H
2000
1500
706064
8
104050Q(m /h)
NPSHr
η
NPSHr
ηNPSHr
η
P a (K W )
N P S H r (m )
H (m )
η(%)
N P S H r (m )
P a (K W )
H (m )
η(%)
P a (K W )
N P S H r (m )
H (m )
η(%)
N P S H r (m )
P a (K W )
H (m )
η(%)
500LB-20.5020
4060800
500
1000
1500
2000
2500
3000
H
Pa
NPSHr
H (m )
Q(m/h)η
N P S H r (m )
η(%)
P a (k W )
20
10
40
30
100
150
50
86
10(n=980rpm)
500LB-115
60504030201001500
1000
500
100908070151020255
120
60H 3500
NPSHr
Pa
3000
2500
2000
Q(m/h)
8060
100 2.5
57.5
50403020100(n=980rpm)
η151020140
100
90
8070Q(m/h)
2.5
5
7.5120
H
1500
1000
500
8060
100
NPSHr
Pa
3000
2500
2000
500LB-10.4
(n=980rpm)
η1402500
Pa
2500
30402010500
NPSHr
2000
1500
1000
100120140654
7Q(m/h)
3000
1030204001000
500
4090506070801020
30(n=980rpm)
500LB-17.1η
160H 402010
309080706050
Pa
NPSHr
25002000
1500
60
80100654
7Q(m/h)
3000
1030204001000
500
NPSHr
Pa
2000
1500
(n=980rpm)
η
H
500LB-16.14010
2030120140
500LB-15.19080706050
(n=980rpm)
η
H
4
5660
807100103020400Q(m/h)
1000
500
Q(m/h)
60
80100NPSHr
Pa
2500
2000
1500
4
5671030204000
500LB-14.24010
2030120
1409080706050(n=980rpm)
η120
140H
4010
20309080706050Q(m/h)
NPSHr
1500
1000
500
4
5660
807100
Pa
2500
2000
(n=980rpm)
500LB-13.4η
120140H
H (m )
η(%)
P a (K W )
P a (K W )
N P S H r (m )
η(%)
H (m )
N P S H r (m )
N P S H r (m )
η(%)
H (m )
P a (K W )
P a (K W )
N P S H r (m )
η(%)
H (m )
H (m )
η(%)
N P S H r (m )
P a (K W )
P a (K W )
N P S H r (m )
N P S H r (m )
P a (K W )
η(%)
H (m )
H (m )
η(%)
500LB-44.8x20
2040608080
100
120140050010001500200025003000H
Pa NPSHr
500LB-55.3x201020
304050100125150175200
500
1000
1500
2000
2500
3000
3500
4000H
Pa
NPSHr
η
P a (k W )
N P S H r (m )
Q(m/h)
η(%)
H (m )
η(%)
H (m )
N P S H r (m )
P a (k W )
Q(m/h)
η
543
700600500400
90
60
70
80500
1500
100043
65500LB-55.30
10203040506070
80
500
1000
1500
2000
2500
3000
35004000H
H Pa
NPSHr
500LB-42.6300
400500
H
Pa
NPSHr
500LB-35.20100200300
20
4060
500
1000
1500
2000
2500
3000H
Pa NPSHr
H (m )
η(%)
Q(m/h)
η
P a (k W )
N P S H r (m )
15010075
125175
200
50
100150
54
65030
70
2006040807
9η(%)
H (m )
P a (k W )
η
N P S H r (m )
Q(m/h)η(%)
H (m )
P a (k W )
η
N P S H r (m )
806020406
8500LB-25.20102030405060
70800
500
1000
1500
2000
2500
3000
3500
4000H Pa NPSHr
500LB-22.80204060800
500
1000
1500
2000
2500
30003500H
Pa
NPSHr
H (m )
Q(m/h)
η
N P S H r (m )
η(%)
P a (k W )
H (m )
Q(m/h)
η
N P S H r (m )
η(%)
P a (k W )
602040200
30040010010
6
8302010
40
150
200250
86
10P a (k W )
4060800
20H (m )
120
150
180500010001500200025003000Q(m/h)
1050NPSHr
54900750Pa 3
600
H
η
N P S H r (m )
η(%)
210
500LB-44.8x3(n=980rpm)
(n=980rpm)
(n=980rpm)
(n=980rpm)
(n=980rpm)
(n=980rpm)
(n=980rpm)
(n=980rpm)
90
500LB-66.4400450
500
40
60801000
500
1000
1500
2000
2500
3000H
Pa NPSHr
Q(m/h)
η(%)
H (m )
P a (k W )
η
N P S H r (m )
80
60705010040302010
1214N P S H r (m )
4050602030150
H (m )
1000
0100
500
1500
2000
NPSHr 3500
2500
3000
43
4000Q(m/h)
η
2250
15006Pa
750
5η(%)
9080
70225
262.5300
187.5LB-55.3x3500H
P a (k W )
(n=980rpm)
(n=1480rpm)
1560
5
100
504030201002520100
90
80
70
3000
2000
1000
200100 2.5
5
7.5NPSHr
Pa H 5000
4000
(n=742rpm)
600LB-9.1η(n=742rpm)
3000
5
601000
500
504030*********
2000
1500
151020100
90
8070600LB-8.61012060
H
Q(m/h)
8060
100
2.5
57.5
NPSHr
Pa
4000
3500
1000
500
50
403020100η140
302040100
9080
70503040102000
4010
2030100
60708090
NPSHr
NPSHr
3500
3000
2500
2000
1500
Q(m/h)
80
160
120200
2.5
57.5Pa H
4000
(n=980rpm)
600LB-12.4η
1060
1500
1000
500
50403020100Pa
H 3000
2500
2000
302040100
908070
(n=980rpm)
η
600LB-11.7Q(m/h)
80
160120 2.5
5
7.53500
180Q(m/h)
2000
1500
1000
500
100120140160NPSHr
Pa
4000
3500
3000
2500
4567600LB-14.1(n=742rpm)
η200
220
H
20050304010200500
NPSHr
2500
2000
1500
1000
67
85
140160180
Pa
3500
3000
5010
2030
40
10060708090(n=980rpm)
LB-18.2006η
220
H
H (m )
η(%)
H (m )
η(%)
N P S H r (m )
P a (K W )
P a (K W )
N P S H r (m )
η(%)
H (m )
H (m )
η(%)
N P S H r (m )
P a (K W )
P a (K W )
P a (K W )
N P S H r (m )
η(%)
H (m )
N P S H r (m )
H (m )
N P S H r (m )
P a (K W )
η(%)。