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WQP stainless steel submersible sewage pump
The WQ stainless steel submersible sewage pump is a new generation of pump products developed based on the introduction of advanced foreign technology
Product details
Overview of WQP Stainless Steel Submersible Sewage Pump
The WQ stainless steel submersible sewage pump is a new generation of pump products developed based on the introduction of advanced foreign technology and the characteristics of domestic water pump usage. It has significant energy-saving effects, anti winding, non clogging, automatic installation, and automatic control. It has a unique effect in the discharge of solid particles and long fiber waste. 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.
Product features of WQP stainless steel submersible sewage pump
The WQP series stainless steel submersible sewage pump adopts a large channel anti clogging hydraulic component design, greatly improving the ability of sewage to pass through. It can effectively pass through 5 times the fiber material of the pump diameter and solid particles with a diameter of about 50% of the pump diameter.
2. Reasonable design, reasonable matching motor, high efficiency, significant energy-saving effect.
3. The mechanical seal adopts a dual channel series seal, made of hard and wear-resistant tungsten carbide, which has the characteristics of durability and wear resistance, and can ensure the safe and continuous operation of the pump for more than 8000 hours.
4. The pump structure is compact, small in size, easy to move, and easy to install, without the need to build a pump room. It can work underwater, greatly reducing project costs.
5. There is an oil-water probe installed in the pump oil chamber. When the mechanical seal on the pump side is damaged and water enters the oil chamber, the probe generates a signal to protect the pump.
6. A fully automatic safety protection control cabinet can be equipped according to user needs to monitor pump leakage, electric leakage, overload, and overheating, ensuring reliable and safe pump operation.
7. The dual rail automatic coupling installation system has brought great convenience to the installation and maintenance of pumps, and people do not have to enter and exit the sewage pit for this.
8. The float switch can change according to the required water level. Automatic control of pump stop and start, no need for dedicated personnel to supervise.
9. Ensure that the motor operates without overload within the range of head.
10. According to the usage scenario, the motor can adopt a water jacket external third-party circulating cooling system, which can ensure the safe operation of the electric pump in a dry state without water.
11. There are two installation methods: fixed automatic coupling installation and mobile free installation, which can meet different usage scenarios.
Structural Description of WQP Stainless Steel Submersible Sewage Pump
The WQP series stainless steel submersible sewage pump consists of a motor and a pump, which are separated by an oil isolation chamber and mechanical seal components. It is an electromechanical integrated product, and the motor and pump share the same shaft (rotor). The entire length of the pump is short and the structure is compact. Equipped with multiple protective devices to ensure reliable operation of the pump, its main components function as follows:
Signal line 1: Equipped with a fully protected water pump control cabinet to provide comprehensive protection for the pump, including leakage, phase failure, short circuit, overheating, motor overload, and other items Motor stator 8: adopts B-level or F-level insulation.
Leakage probe 11: This component is installed in the oil chamber. When the mechanical seal is damaged and water enters the oil chamber, the probe can send a signal to the control system to protect the pump.
Mechanical Seal 13: Adopting dual channel series sealing, using hard and corrosion-resistant tungsten carbide material, it has the characteristics of reliable sealing, wear resistance, and long service life.
Impeller 17: The impeller adopts a single channel or double channel structure, which has strong passing capacity and can pass large materials and fiber garbage, reducing blockage and entanglement failures.
Pump body 15: Paired with the impeller, the pump has high efficiency.
Sealing ring 18: installed at the mouth ring of the pump body. When the impeller wears out the mouth ring due to operation, the sealing ring can be replaced to ensure optimal efficiency of the pump operation.
The significance of WQP stainless steel submersible sewage pump model
For example: 50WQP15-30-3
50- Discharge diameter (mm)
WQP submersible unobstructed sewage pump
P-steel (P)
15- Flow rate (m3/h)
30 Head (m)
3- Power consumption (KW)
| Model number | Caliber (mm) |
Traffic volume (m3/h) |
Head lift (m) |
Power (kw) |
Rotational speed (r/min) |
Efficiency (%) |
| QW25-8-15-1.1 | 25 | 8 | 15 | 1.1 | 2825 | 38.5 |
| QW32-12-15-1.1 | 32 | 12 | 15 | 1.1 | 2825 | 40 |
| QW40-15-15-1.5 | 40 | 15 | 15 | 1.5 | 2840 | 45.1 |
| QW40-15-30-2.2 | 40 | 15 | 30 | 2.2 | 2840 | 48 |
| QW50-20-7-0.75 | 50 | 20 | 7 | 0.75 | 1390 | 54 |
| QW50-10-10-0.75 | 50 | 10 | 10 | 0.75 | 1390 | 56 |
| QW50-20-15-1.5 | 50 | 20 | 15 | 1.5 | 2840 | 55 |
| QW50-15-25-2.2 | 50 | 15 | 25 | 2.2 | 2840 | 56 |
| QW50-18-30-3 | 50 | 18 | 30 | 3 | 2880 | 58 |
| QW50-25-32-5.5 | 50 | 25 | 32 | 5.5 | 2900 | 53 |
| QW50-20-40-7.5 | 50 | 20 | 40 | 7.5 | 2900 | 55 |
| QW65-25-15-2.2 | 65 | 25 | 15 | 2.2 | 2840 | 52 |
| QW65-37-13-3 | 65 | 37 | 13 | 3 | 2880 | 55 |
| QW65-25-30-4 | 65 | 25 | 30 | 4 | 2890 | 58 |
| QW65-30-40-7.5 | 65 | 30 | 40 | 7.5 | 2900 | 56 |
| QW65-35-50-11 | 65 | 35 | 50 | 11 | 2930 | 60 |
| QW65-35-60-15 | 65 | 35 | 60 | 15 | 2930 | 63 |
| QW80-40-7-2.2 | 80 | 40 | 7 | 2.2 | 1420 | 52 |
| QW80-43-13-3 | 80 | 43 | 13 | 3 | 2880 | 50 |
| QW80-40-15-4 | 80 | 40 | 15 | 4 | 2890 | 57 |
| QW80-65-25-7.5 | 80 | 65 | 25 | 7.5 | 2900 | 56 |
| QW100-80-10-4 | 100 | 80 | 10 | 4 | 1440 | 62 |
| QW100-110-10-5.5 | 100 | 110 | 10 | 5.5 | 1440 | 66 |
| QW100-100-15-7.5 | 100 | 100 | 15 | 7.5 | 1440 | 67 |
| QW100-85-20-7.5 | 100 | 85 | 20 | 7.5 | 1440 | 68 |
| QW100-100-25-11 | 100 | 100 | 25 | 11 | 1460 | 65 |
| QW100-100-30-15 | 100 | 100 | 30 | 15 | 1460 | 66 |
| QW100-100-35-18.5 | 100 | 100 | 35 | 18.5 | 1470 | 65 |
| QW125-130-15-11 | 125 | 130 | 15 | 11 | 1460 | 62 |
| QW120-130-20-15 | 125 | 130 | 20 | 15 | 1460 | 63 |
| QW150-145-9-7.5 | 150 | 145 | 9 | 7.5 | 1440 | 63 |
| QW150-180-15-15 | 150 | 180 | 15 | 15 | 1460 | 65 |
| QW150-180-20-18.5 | 150 | 180 | 20 | 18.5 | 1470 | 75 |
| QW150-180-25-22 | 150 | 180 | 25 | 22 | 1470 | 76 |
| QW150-130-30-22 | 150 | 130 | 30 | 22 | 1470 | 75 |
| QW150-180-30-30 | 150 | 180 | 30 | 30 | 1470 | 73 |
| QW150-200-30-37 | 150 | 200 | 30 | 37 | 1480 | 70 |
| QW200-300-7-11 | 200 | 300 | 7 | 11 | 970 | 73 |
| QW200-250-11-15 | 200 | 250 | 11 | 15 | 970 | 74 |
| QW200-400-10-22 | 200 | 400 | 10 | 22 | 1470 | 76 |
| QW200-400-13-30 | 200 | 400 | 13 | 30 | 1470 | 73 |
| QW200-250-15-18.5 | 200 | 250 | 15 | 18.5 | 1470 | 72 |
| QW200-300-15-22 | 200 | 300 | 15 | 22 | 1470 | 73 |
| QW200-250-22-30 | 200 | 250 | 22 | 30 | 1470 | 71 |
| QW200-350-25-37 | 200 | 350 | 25 | 37 | 1980 | 75 |
| QW200-400-30-55 | 200 | 400 | 30 | 55 | 1480 | 70 |
| QW250-600-9-30 | 250 | 600 | 9 | 30 | 980 | 74 |
| QW250-600-12-37 | 250 | 600 | 12 | 37 | 1480 | 78 |
| QW250-600-15-45 | 250 | 600 | 15 | 45 | 1480 | 75 |
| QW250-600-20-55 | 250 | 600 | 20 | 55 | 1480 | 73 |
| QW250-600-25-75 | 250 | 600 | 25 | 75 | 1480 | 73 |
| QW300-800-12-45 | 300 | 800 | 12 | 45 | 980 | 76 |
| QW300-500-15-45 | 300 | 500 | 15 | 45 | 980 | 70 |
| QW300-800-15-55 | 300 | 800 | 15 | 55 | 980 | 73 |
| QW300-600-20-55 | 300 | 600 | 20 | 55 | 980 | 75 |
| QW300-800-20-75 | 300 | 800 | 20 | 75 | 980 | 78 |
| QW300-950-20-90 | 300 | 950 | 20 | 90 | 980 | 80 |
| QW300-1000-25-110 | 300 | 1000 | 25 | 110 | 980 | 82 |
| QW350-1100-10-55 | 350 | 1100 | 10 | 55 | 980 | 84.5 |
| QW350-1500-15-90 | 350 | 1500 | 15 | 90 | 980 | 82.5 |
| QW350-1200-18-90 | 350 | 1200 | 18 | 90 | 980 | 83.1 |
| QW350-1100-28-132 | 350 | 1100 | 28 | 132 | 740 | 83.2 |
| QW350-1000-36-160 | 350 | 1000 | 36 | 160 | 740 | 78.5 |
| QW400-1500-10-75 | 400 | 1500 | 10 | 75 | 980 | 82.1 |
| QW400-2000-15-132 | 400 | 2000 | 15 | 132 | 740 | 85.5 |
| QW400-1700-22-160 | 400 | 1700 | 22 | 160 | 740 | 82.1 |
| QW400-1500-26-160 | 400 | 1500 | 26 | 160 | 740 | 83.5 |
| QW400-1700-30-200 | 400 | 1700 | 30 | 200 | 740 | 83.5 |
| QW400-1800-32-250 | 400 | 1800 | 32 | 250 | 740 | 82.1 |
| QW500-2500-10-110 | 500 | 2500 | 10 | 110 | 740 | 82 |
| QW500-2600-15-160 | 500 | 2600 | 15 | 160 | 740 | 83 |
| QW500-2400-22-220 | 500 | 2400 | 22 | 220 | 740 | 84 |
| QW500-2600-24-250 | 500 | 2600 | 24 | 250 | 740 | 82 |
Fault analysis and troubleshooting methods
|
Obstacle phenomenon |
Cause analysis |
Exclusion method |
|
Insufficient traffic
Or no water will come out |
1. Impeller rotation error 2. Is the valve open and intact 3. The pipeline is blocked 4. Low speed 5. Head too high 6. The density of the pumping medium is relatively high 7. High viscosity of the medium 8. Damaged sealing ring (at the mouth ring) |
1. Adjust the rotation direction of the impeller 2. Check, repair, and eliminate 3. Clean up debris 4. Check electrical equipment and circuits 5. Change the pump or reduce the head 6. Dilute with water to reduce concentration 7. Reduce viscosity 8. Replace |
|
Unstable operation |
1. Unbalanced impeller 2. Bearing damage |
1. Send to the manufacturer for replacement or calibration 2. Replace the impeller |
|
The pump cannot start |
1. Lack of phase 2. Impeller stuck 3. Winding, connector or cable open circuit 4. Stator winding burnt out 5. Electrical control malfunction |
1. Check the circuit for repair 2. Remove debris 3. Use an ohmmeter to check and repair 4. Repair and replace the winding 5. Repair or replace |
|
Excessive current |
1. Low working voltage 2. Pipeline and impeller blockage 3. Transporting liquids that have passed or have high viscosity 4. Using a lift that is too high |
1. Adjust the working voltage 2. Clean the pipeline and replace the winding 3. Change density or viscosity 4. Reduce traffic and increase traffic |
|
Low insulation resistance |
1. Leakage at the power supply terminal of the cable 2. Cable damage 3. Mechanical seal wear leads to leakage 4. Failure of each O-ring seal 5. The casing is corroded by the medium and leaks water |
1. Tighten the compression nut 2. Replace 3. Replace 4. Replace 5. Repair |
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