Overview of LW vertical unobstructed sewage pump

The LW vertical non blocking sewage pump is developed by introducing advanced foreign technology and absorbing and transforming it. All performance indicators meet the national standard for similar products. Due to the use of unique single (double) channel impellers, it has strong drainage capacity and can effectively pass through 5 times the diameter of the pump and solid particles with a diameter of 50% of the pump diameter. The dynamic seal adopts two sets of special hard alloy mechanical seal devices made of cast iron and stainless steel. This series of pumps adopts a unique impeller structure and mechanical seal, which can effectively transport solids and long fibers. Compared with traditional impellers, the impeller of this pump adopts a single channel or double channel form, which is similar to a curved pipe with the same cross-sectional size and has very good flow characteristics. Coupled with a reasonable volute chamber, the pump has high efficiency and the impeller has undergone dynamic and static balance tests, making the pump operate without vibration. The hydraulic performance of this pump is advanced and mature. After testing, all performance indicators of the product have reached the relevant standards and regulations. After its launch on the market, the product has been welcomed and praised by a large number of users for its unique efficacy, reliable performance, and stable quality.

LW vertical non blocking sewage pump product features

1. By adopting a unique single blade or double blade impeller structure, the passage capacity of pollutants is greatly improved, which can effectively pass through 5 times the diameter of fiber material and solid particles with a diameter of about 50% of the pump diameter;

2. The mechanical seal is made of hard all metal corrosion-resistant tungsten carbide material, which allows it to operate in the oil chamber for a long time and can ensure safe and continuous operation of the pump for more than 8000 hours;

3. The overall structure is compact, the volume is small, the noise is low, the energy-saving effect is significant, and the maintenance is convenient. At the same time, due to the use of standard Y series motors, it is easy for users to replace them;

4. The automatic control cabinet can automatically control the pump's over movement and stop according to the required liquid level changes, without the need for dedicated personnel to supervise, making it extremely convenient to use;

5. Square or circular installation systems can be equipped according to user needs, which brings great convenience to installation and maintenance. People do not need to enter the sewage pit for this purpose;

6. Can be used within the full head range while ensuring that the motor does not overload;

7. If the sewage pump is equipped with an outdoor motor, there is no need to build a pump room, and it can be directly installed outdoors to save costs;

8. The pump is a vertical structure.

LW vertical non blocking sewage pump product usage

The LW series non blocking sewage pump is suitable for the discharge of severely polluted wastewater in factories and commercial areas, sewage discharge stations in main residential areas, water distribution systems in urban sewage treatment plants, drainage stations in civil air defense systems, water supply equipment in water plants, sewage discharge in hospitals and hotels, municipal engineering construction sites, mining supporting machines, rural biogas digesters, farmland irrigation and other industries. It can also be used for conveying granular sewage and pollutants, as well as for clean water and weakly corrosive media.

Usage conditions of LW vertical unobstructed sewage pump

1. The operating environment temperature of the sewage pump is ≤ 40 ℃, and the humidity is ≤ 95%; If the altitude is ≤ 1000 meters, it should be raised when ordering.

2. The medium temperature shall not exceed 60 ℃, and the medium density shall be 1-1.3kg/dm3.

3. The use range of cast iron material is PH5-9.

4. 1Cr18Ni9Ti stainless steel material can be used with general corrosive media.

5. The altitude of the usage environment should not exceed 1000 meters. If it exceeds, it should be mentioned when placing an order to provide you with more reliable products.

Note: If the user has special requirements for temperature, medium, etc., please specify the detailed information of the conveying medium when ordering, so that our unit can provide more reliable products.

Structural Description of LW Vertical Non blocking Sewage Pump

The LW vertical sewage pump is a single suction volute pump equipped with non clogging and anti winding single (double) large channel impellers, which have good passing capacity. This series of pumps has two structural forms, one is that the motor is directly coaxial with the pump, and the other is that it is connected by a coupling, and the motor adopts a standard vertical motor. The structural diagram is as follows, and each structural form has two types of base connection forms. One is the inlet horizontal suction, which has a corner function and can be placed at 0 °, 90 °, 180 °, 270 ° according to usage requirements for pipeline connection. The other is the inlet axial suction, which is convenient for vertical installation.

Model number	Caliber (mm)	Traffic volume (m3/h)	Head lift (m)	Power (kw)	Rotational speed (r/min)	Efficiency (%)
25-8-22-1.1	25	8	22	1.1	2825	38.5
32-12-15-1.1	32	12	15	1.1	2825	40
40-15-15-1.5	40	15	15	1.5	2840	45.1
40-15-30-2.2	40	15	30	2.2	2840	48
50-20-7-0.75	50	20	7	0.75	1390	54
50-10-10-0.75	50	10	10	0.75	1390	56
50-20-15-1.5	50	20	15	1.5	2840	55
50-15-25-2.2	50	15	25	2.2	2840	56
50-18-30-3	50	18	30	3	2880	58
50-25-32-5.5	50	25	32	5.5	2900	53
50-20-40-7.5	50	20	40	7.5	2900	55
65-25-15-2.2	65	25	15	2.2	2840	52
65-37-13-3	65	37	13	3	2880	55
65-25-30-4	65	25	30	4	2890	58
65-30-40-7.5	65	30	40	7.5	2900	56
65-35-50-11	65	35	50	11	2930	60
65-35-60-15	65	35	60	15	2930	63
80-40-7-2.2	80	40	7	2.2	1420	52
80-43-13-3	80	43	13	3	2880	50
80-40-15-4	80	40	15	4	2890	57
80-65-25-7.5	80	65	25	7.5	2900	56
100-80-10-4	100	80	10	4	1440	62
100-110-10-5.5	100	110	10	5.5	1440	66
100-100-15-7.5	100	100	15	7.5	1440	67
100-85-20-7.5	100	85	20	7.5	1440	68
100-100-25-11	100	100	25	11	1460	65
100-100-30-15	100	100	30	15	1460	66
100-100-35-18.5	100	100	35	18.5	1470	65
125-130-15-11	125	130	15	11	1460	62
120-130-20-15	125	130	20	15	1460	63
150-145-9-7.5	150	145	9	7.5	1440	63
150-180-15-15	150	180	15	15	1460	65
150-180-20-18.5	150	180	20	18.5	1470	75
150-180-25-22	150	180	25	22	1470	76
150-130-30-22	150	130	30	22	1470	75
150-180-30-30	150	180	30	30	1470	73
150-200-30-37	150	200	30	37	1480	70
200-300-7-11	200	300	7	11	970	73
200-250-11-15	200	250	11	15	970	74
200-400-10-22	200	400	10	22	1470	76
200-400-13-30	200	400	13	30	1470	73
200-250-15-18.5	200	250	15	18.5	1470	72
200-300-15-22	200	300	15	22	1470	73
200-250-22-30	200	250	22	30	1470	71
200-350-25-37	200	350	25	37	1980	75
200-400-30-55	200	400	30	55	1480	70
250-600-9-30	250	600	9	30	980	74
250-600-12-37	250	600	12	37	1480	78
250-600-15-45	250	600	15	45	1480	75
250-600-20-55	250	600	20	55	1480	73
250-600-25-75	250	600	25	75	1480	73
300-800-12-45	300	800	12	45	980	76
300-500-15-45	300	500	15	45	980	70
300-800-15-55	300	800	15	55	980	73
300-600-20-55	300	600	20	55	980	75
300-800-20-75	300	800	20	75	980	78
300-950-20-90	300	950	20	90	980	80
300-1000-25-110	300	1000	25	110	980	82
350-1100-10-55	350	1100	10	55	980	84.5
350-1500-15-90	350	1500	15	90	980	82.5
350-1200-18-90	350	1200	18	90	980	83.1
350-1100-28-132	350	1100	28	132	740	83.2
350-1000-36-160	350	1000	36	160	740	78.5
400-1500-10-75	400	1500	10	75	980	82.1
400-2000-15-132	400	2000	15	132	740	85.5
400-1700-22-160	400	1700	22	160	740	82.1
400-1500-26-160	400	1500	26	160	740	83.5
400-1700-30-200	400	1700	30	200	740	83.5
400-1800-32-250	400	1800	32	250	740	82.1
500-2500-10-110	500	2500	10	110	740	82
500-2600-15-160	500	2600	15	160	740	83
500-2400-22-220	500	2400	22	220	740	84
500-2600-24-250	500	2600	24	250	740	82

Installation instructions for LW vertical unobstructed sewage pump

1. The pump and pipeline should have their own supporting components, and the weight of the pipeline should not be applied to the pump.

2. In order to maintain convenience and ensure safe use, a regulating valve is installed on the inlet and outlet pipelines of the pump, and a pressure gauge is installed near the pump outlet to ensure that the pump operates within the rated head and flow range, ensuring the normal operation of the pump and improving its service life.

When installing the pump, it is necessary to tighten the foundation bolts to avoid the impact of vibration on the pump performance during start-up

Before installation, check the fastening and damage of the water pump and motor.

5. In order to prevent the pump from experiencing thermal deformation of the pipeline during the transportation of high-temperature liquids, the foot bolts of the pump seat are not fixed in turns. When the pipeline system expands and contracts, the pump can move together with the pipeline.

Precautions for using LW vertical non blocking sewage pump

1. Before using the sewage pump, carefully check whether the fasteners have moved or fallen off, and whether the pump has deformed or been damaged during transportation, storage, and installation.

2. After the sewage pump is started, the rotating square should rotate counterclockwise when viewed from the inlet. If the electric pump rotates in the opposite direction, simply swap any two-phase wires in the cable to adjust the wiring position.

3. It is not allowed to operate the electric pump in a low field range state for a long time (generally using a head not less than 60% of the rated head), and it is recommended to control it within the recommended range of swing head to prevent the pump from burning out the motor due to load.

4. The sewage pump should not operate under cavitation conditions to improve the service life of the pump. It is strictly prohibited to operate the pump without liquid, otherwise it is very easy to burn out the mechanical seals.

When the parts of the pump are made of cast iron and installed outdoors in winter. Attention should be paid to preventing breakage, and insulation should be applied when the temperature is particularly low.