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Type:2015425105518
Material :Cast iron Stainless steel
Inet diameter：25~300mm
Outlet diameter：8~800m3/h
Flow：Max 300m3/h
Operating temperature：<=80°
Solid particles：Max 20mm
Work permit pressure：1.4Mpa
Allow experimental pressure：
product description
LW vertical non-blocking sewage pump is suitable for the discharge of serious polluted wastewater from the factory, the sewage discharge station in the main residential area, the water distribution system of the urban sewage treatment plant, the drainage station of the civil air defense system, the water supply equipment of the water supply plant, the sewage of the hospital and the hotel. Emissions, municipal engineering construction sites, mine supporting machines, rural biogas digesters, farmland irrigation, etc., transporting granular sewage, dirt, can also be used for clean water and with weak corrosive media. LW vertical non-blocking sewage pump is imported from foreign advanced technology, through absorption and transformation, and all performance indicators have reached the level of similar products of national standards. Due to the unique single (double) channel impeller, the sewage discharge capacity is strong, and it can effectively pass through the 5 times of the pump diameter and the solid particles with the diameter of the pump diameter of 50%. The dynamic seal uses two sets of special materials of the hard alloy mechanical seal. The device is made of cast iron and stainless steel.
Structure description
The LW vertical non-clogging sewage pump is a single-suction volute type pump. The pump is equipped with a non-blocking anti-winding single (double) large flow channel impeller, which has a good passing ability.
The LW vertical non-blocking sewage pump has two structural forms. One is that the motor is directly coaxial with the pump, the other is connected by a coupling, and the motor uses a standard vertical motor. The structure diagram is as follows, each structure has two types of base connection, one is imported horizontal suction, has a corner function, can be placed into 0°, 90°, 180°, 270° according to the requirements of use, to facilitate the pipeline Connection, the second is the inlet axial suction, easy to install vertically.
Features
1. The mechanical seal adopts a new type of grinding and boring, and it is put into the oil chamber for a long time;
2. The overall structure is compact, the volume is small, the sound is small, the energy saving effect is remarkable, the maintenance is convenient, and the user is convenient to replace;
3, the use of double-bladed impeller structure, greatly improving the ability to pass dirt;
4. The automatic control cabinet can automatically control the over-motion and stop of the pump according to the required liquefaction change, without special care, and is extremely convenient to use;
5, can be equipped according to the needs of users, it provides great convenience for installation and maintenance, people can enter the sump without this;
6, can be used within the design range, and ensure that the motor will not overload;
7. The pump is equipped with an outdoor motor, so there is no need to build a pump room, and it can be directly installed and used outdoors to save money.
Conditions of Use
1. LW vertical sewage pump series products are applicable when the rated voltage is 380V and the power frequency is 50Hz;
2. The medium temperature does not exceed 40 degrees Celsius, the medium density is ≤1150kg/m3, and the PH value is between 5-9;
3. The altitude does not exceed 1000 meters;
4. The annual viscosity of the transport medium does not exceed 1000CP;
5, the product material is mainly cast iron, can not be used in strong corrosive or highly corrosive media.
Note: Before selecting or installing, please make sure that the actual use conditions of the pump meet the above requirements to ensure the correct use of the product.
Common fault analysis and its troubleshooting
Fault phenomenon Cause analysis Exclusion method
1 Impeller rotation error 1 Adjust the impeller rotation direction
2 Whether the valve is open and in good condition 2 Inspection, repair, and elimination
3 pipe impeller is blocked 3 clean up debris
Insufficient flow rate 4 Low speed 4 Check electrical equipment and circuits
Or no water 5 lift too high 5 change pump or lower lift
6 pumping medium density is higher 6 water dilution to reduce concentration
7 medium viscosity is higher 7 lower viscosity
8 seal ring damage (at the mouth) 8 replacement
Unstable operation 1 Impeller imbalance 1 exchange or correction
2 bearing damage 2 replacement
1 phase loss 1 check the line for repair
2 impeller stuck 2 exclude debris
Pump can't start 3 Winding, connector or cable break 3 Check with ohmmeter
4 stator winding burned 4 repair, replace the winding
5 electrical control failure 5 repair or exchange
1 low working voltage 1 adjust working voltage
2 pipes, impellers are blocked 2 clean pipes, impellers
Excessive current 3 High pumping liquid height or viscosity 3 Change density or viscosity
4 use the head too low 4 reduce the flow, improve the lift
1 Cable power supply terminal leakage 1 Tighten the compression nut
2 cable breakage 2 replacement
Low insulation resistance 3 Mechanical seal wear and leakage 3 Replacement
4 O-ring seals fail 4 Replace
5The casing is corroded by the medium and leaks.
The sewage pump is a single-suction and shell-type pump. The pump is equipped with a non-blocking anti-winding type single (double) large flow channel impeller, which has good passing ability.
This series of pumps has two structural forms. One is that the motor is also directly coaxial with the pump, the other is connected by a coupling, and the motor uses a standard vertical motor. Its structure is shown in the figure. Each structure has two types of base connection. One is the horizontal suction of the inlet and has the corner function. The inlet and outlet can be placed according to the requirements of use. 90. 180. 270. It is convenient for pipeline connection, and the second is imported axial suction, which is convenient for vertical installation.
Features
1 The large-flow anti-blocking hydraulic component design greatly improves the dirt passing ability, and can effectively pass 5 times of the fiber diameter of the pump and the solid particles with a diameter of about 50% of the pump diameter.
2. The design is reasonable, the matching motor is reasonable, the efficiency is high, and the energy saving effect is remarkable.
3. The mechanical seal adopts a single-channel seal. The material is hard wear-resistant and corrosion-resistant tungsten carbide. It has the characteristics of durability and wear resistance, and can be safely and continuously operated for more than 8000 hours.
4. The pump and the motor are directly connected coaxially, which is a mechatronic product with compact structure and stable performance.
5. Advanced hydraulic performance, high efficiency and low running noise.
6. Add a protective cover to the fan blade end of the motor. The whole machine can be placed outdoors, without the machine room, which can save a lot of capital construction costs.
7. The pump and motor are integrated and require no calibration during installation.
Model meaning:
80 - LW - 100 - 15 - 7.5
"80" - represents the exit diameter (mm)
“LW” – “L” stands for vertical and “W” stands for sewage
"100" - represents flow (m3/h)
"15" - represents the lift (m)
"7.5" - representative power (KW)
序号 型号 口径 流量 扬程 功率 转速 效率 使用扬程范围
（m） (m3/h) (m) (kw) (r/min) (%) (m)
1 25LW8-22-1.1 25 8 22 1.1 2825 38.5 10-22
2 32LW12-15-1.1 32 12 15 1.1 2825 40 8-15
3 40LW15-15-1.5 40 15 15 1.5 2840 45.1 6-15
4 40LW15-30-2.2 40 15 30 2.2 2840 48 15-30
5 50LW20-7-0.75 50 20 7 0.75 1390 54 3-7
6 50LWI0-10-0.75 50 10 10 0.75 1390 56 4-10
7 50LW20-15-1.5 50 20 15 1.5 2840 55 6-15
8 50LW15-25-2.2 50 15 25 2.2 2840 56 10-25
9 50LW18-30-3 50 18 30 3 2880 58 15-30
10 50LW25-32-5.5 50 25 32 5.5 2900 53 17-32
11 50LW20-40-7.5 50 20 40 7.5 2900 55 20-40
12 65LW25-15-2.2 65 25 15 2.2 2840 52 6-15
13 65LW37-13-3 65 37 13 3 2880 55 6-13
14 65LW25-30-4 65 25 30 4 2890 58 15-30
15 65LW30-40-7.5 65 30 40 7.5 2900 56 20-40
16 65LW35-50-11 65 35 50 11 2930 60 35-50
17 65LW35-60-15 65 35 60 15 2930 63 40-60
18 80LW40-7-2.2 80 40 7 2.2 1420 52 3-7
19 80LW43-13-3 80 43 13 3 2880 50 5-13
20 80LW40-15-4 80 40 15 4 2890 57 6-15
21 80LW65-25-7.5 80 65 25 7.5 2900 56 12-25
22 100LW80-10-4 100 80 10 4 1440 62 4-10
23 100LW110-0-5.5 100 110 10 5.5 1440 66 5-10
24 100LWI00-15-7.5 100 100 15 7.5 1440 67 8-15
25 IOOLW85-20-7.5 100 85 20 7.5 1440 68 10-20
26 100LW100-25-11 100 100 25 11 1460 65 10-25
27 IOOLWI00-30-15 100 100 30 15 1460 66 12-30
28 100LW100-35-18.5 100 100 35 18.5 1470 65 15-35
29 125LW130-15-11 125 130 15 11 1460 62 7-15
30 125LW130-20-15 125 130 20 15 1460 63 10-20
31 150LW145-9-7.5 150 145 9 7.5 1440 63 4-9
32 150LW180-15-15 150 180 15 15 1460 65 5-15
33 150LW180-20-18.5 150 180 20 18.5 1470 75 8-20
34 150LW180-25-22 150 180 25 22 1470 76 12-25
35 150LW130-30-22 150 130 30 22 1470 75 15-30
36 150LW180-30-30 150 180 30 30 1470 73 15-30
37 150LW200-30-37 150 200 30 37 1480 70 13-30
38 200LW300-7-11 200 300 7 11 970 73 3-7
39 200LW250-11-15 200 250 11 15 970 74 4-11
40 200LW400-10-22 200 400 10 22 1470 76 5-10
41 200LW400-13-30 200 400 13 30 1470 73 6-13
42 200LW250-15-18.5 200 250 15 18.5 1470 72 7-15
43 200LW300-15-22 200 300 15 22 1470 73 8-15
44 200LW250-22-30 200 250 22 30 1470 71 12-22
45 200LW350-25-37 200 350 25 37 1480 75 10-25
46 200LW400-30-45 200 400 30 45 1480 70 13-30
47 250LW600-9-30 250 600 9 30 980 74 3-9
48 250LW600-12-37 250 600 12 37 1480 78 5-12
49 250LW600-15-45 250 600 15 45 1480 75 6-15
50 250LW600-20-55 250 600 20 55 1480 73 8-20
51 250LW600-25-75 250 600 25 75 1480 73 12-25
52 250LW800-12-45 250 800 12 45 1480 76 5-12
53 300LW500-15-45 300 500 15 45 980 70 7-15
54 300LW800-15-55 300 800 15 55 980 73 8-15
55 300LW600-20-55 300 600 20 55 980 75 10-20
56 300LW800-20-75 300 800 20 75 980 78 12-20
57 300LW950-20-90 300 950 20 90 980 80 11-20
58 300LW1000-25-110 300 1000 25 110 980 82 12-25
59 350LW1100-10-55 350 1100 10 55 980 84.5 4-10
60 350LW1500-15-90 350 1500 15 90 980 82.5 6-15
61 350LW1200-18-90 350 1200 18 90 980 83.1 8-18
62 350LW1100-28-132 350 1100 28 132 740 83.2 15-25
63 350LWI000-36-160 350 1000 36 160 740 78.5 20-36
64 400LW1500-10-75 400 1500 10 75 980 821 3-10
65 400LW2000-15-132 400 2000 15 132 740 85.5 6-15
66 400LW1700-22-160 400 1700 22 160 740 82.1 10-22
67 400LW1500-26-160 400 1500 26 160 740 83.5 12-26
68 400LW1700-30-200 400 1700 30 200 740 83.5 15-30
69 400LW1800-32-250 400 1800 32 250 740 82.1 17-32
You are welcome to consult at any time
