AS/AV tear typeSubmersible pumpproduct overview

AS, AV type submersibleSewage pumpThis series of water pumps is developed by our company using advanced technology from the German ABS company. It has a tearing structure that can tear and cut long fibers, bags, belts, grass, cloth strips, and other substances in sewage, and then discharge them smoothly. It is particularly suitable for transporting liquids containing hard solids, fiber materials, as well as particularly dirty, sticky, and slippery liquids. This seriesSewage pumpThe hydraulic performance is advanced and mature. The product has undergone performance testing and all indicators meet the relevant design requirements.

All of our products are designed and optimized using computers. Our company has strong technical strength, rich production experience, and comprehensive testing methods to ensure stable and reliable product quality.

AS/AV tear typeSubmersible pumpModel Meaning

AS/AV tear typeSubmersible pumpScope of use

Flow rate: 15-145m3/h
Lift: 4-25m
Speed: 1450-2900r/min
Caliber: φ76-φ152
Temperature range:- 15-+40℃
Work pressure: ≤ 1.0Mpa

AS/AV tear typeSubmersible pumpMain features of the product

Adopting advanced technology, with strong sewage discharge capacity and no blockage, it can effectively pass solid particles with diameters ranging from 30 to 80 millimeters.
The tearing mechanism can tear, cut, and smoothly discharge fibrous material without the need for a filter screen on the pump.
Reasonable design, small matching motor power, significant energy-saving effect.
Using the latest mechanical seals, the pump can operate safely and continuously for over 8000 hours.
◆ Compact structure, easy to move, simple installation, can reduce engineering costs, and does not require the construction of a pump room.
◆ Can be used within the full head range while ensuring that the motor does not overload.
The floating ball can automatically control the start and stop of the pump according to the required water level changes, without the need for special supervision.
The dual rail automatic installation system brings great convenience to installation and maintenance, and people do not have to enter and exit the sewage pit for this.
Equipped with a fully automatic protection control box, it effectively protects the product from electric leakage, water leakage, and overload, improving the safety and reliability of the product.

AS/AV tear typeSubmersible pumpMain purpose

The discharge of severely polluted wastewater from factories and businesses
Wastewater discharge from hospitals and hotels
◆ Urban sewage treatment plant discharge system
◆ Municipal engineering and construction sites
◆ Sewage drainage system in residential areas
◆ Exploration and mining supporting equipment
Civil air defense system drainage station
◆ Rural biogas digesters, farmland irrigation

AS/AV tear typeSubmersible pumpStructural diagram

AS/AV tear typeSubmersible pumpperformance parameter

AS/AV tear typeSubmersible pumpExternal dimensions

AS/AV tear typeSubmersible pumpinstructions

Before starting the water pump, a qualified electrician should inspect the system to ensure the following electrical protection measures are required:

1. Before running the pump, use a 0-500 megohmmeter to check the insulation resistance between phases and relative to ground of the motor, and the minimum value should be greater than 2M Ω;
2. The power supply device should be safe, reliable, and functioning properly. The power supply voltage and frequency should comply with regulations (voltage of 380V ± 5%, frequency of 50Hz ± 1%), and the instantaneous voltage deviation should not exceed 10%. If the power supply is far away from the water pump, the cross-sectional area of the cable should be increased and the joints should be minimized as much as possible, otherwise the voltage will drop too much. Sealing and waterproof treatment should be carried out at the cable joints to prevent leakage;
3. In a four core cable, the one with the symbol "┴" is the grounding wire (usually a green yellow dual color wire or a black wire). To ensure safe use, it must be firmly grounded and 50mm longer than other wires;
4. When conditions permit, electrical protection devices may include grounding protectors, ground leakage circuit breakers, etc. However, in any case, slow melting fuse wires that match the rated current value of the electric pump must be installed;
5. The electrical control device should be moisture-proof, and the well should be installed in a moisture-proof area. The placement of the cable should be careful not to block it at the suction port of the pump;
6. Check the direction of rotation of the rotor.
After the initial start-up or reinstallation of the electric pump, the rotation direction should be checked. Incorrect rotation direction can cause a decrease in pump efficiency or damage to the pump, such as impeller detachment.
To determine the direction of rotation of the rotor, before the final installation of the water pump, it should be lifted and operated with a jog. If the following conditions are met, the direction of rotation is correct. Otherwise, the position of any two of the three-phase wires on the controller should be exchanged to change the direction of rotation.
a. Looking down from the top of the pump, the rotor rotates clockwise;
b、 Looking up from the bottom (i.e. in the suction direction), it can be seen that the blades rotate counterclockwise.
Note: If several pumps are connected to the same controller, they should be checked separately.

AS/AV tear typeSubmersible pumpTransportation and usage precautions

1. Never allow the use of pump cables to lift or suspend the water pump. When transporting or suspending the water pump, a chain with a hook can be used to hook it onto the handle or the hanging ring on the cover;
2. When in mobile use, the outlet hose can be connected to the outlet bend of the water pump using the standard hose connector specified in the previous table. When in fixed use, the pipeline can be set according to the flange standard of the self coupling device;
3. The water pump should not be placed at the outlet of the sewage. When the water pump seat is placed on mud or floating sand, the water pump may sink due to vibration. In this case, it is recommended that the user suspend the water pump or place it on a larger base plate;
4. If the pump is still running, it can continue to be used at temperatures below 0 ℃, but if it stops being used, the pump should be lifted, cleaned, and stored;
5. The inner diameter of the outlet pipe should meet the specified requirements, but when the conveying distance is far, the inner diameter can be appropriately reduced, which may cause blockage and reduce conveying efficiency, and is not economical;
6. Pumps used in sewage may accumulate mud and other debris around the casing after prolonged operation, which reduces the speed of heat transfer, raises the internal temperature of the pump, shortens the service life of the motor, or causes inexplicable tripping. Therefore, after a certain period of operation (such as lowering to the lowest water level), hoses should be used to flush the pump to maintain its cleanliness;
7. The pump seal uses 10 # -30 # mechanical oil for lubrication and cooling. Due to seal wear, lubricating oil may leak out, and the conveying medium may also enter the motor through the seal. In this case, please quickly send the pump to our repair department or commissioned repair point to replace the seal, in order to avoid burning out the water pump motor;
8. When the power is not cut off, the water pump must not be moved and must not come into contact with the surrounding water source during pump operation to prevent electric shock accidents in case of leakage of the pump without a ground leakage circuit breaker device;
9. After the installation of the submersible electric pump, it is not advisable to soak it in water for a long time, which increases the chance of the motor getting damp. At the same time, it is recommended to run it for at least 4 hours a week to check its function and adaptability. Otherwise, it should be lifted and stored in a dry place for backup.

AS/AV tear typeSubmersible pumpinspection and maintenance

This series of pump products has excellent performance and reliable operation. Each pump undergoes strict factory testing before leaving the factory. The permanently lubricated ball bearings and high-quality mechanical seals operating in the oil chamber give the water pump maximum durability. However, in order to maintain the service life of the water pump, it is recommended to conduct regular inspections and maintenance.
1. Regularly check the insulation resistance between the phases and relative ground of the electric pump motor, which should be greater than 2M Ω. Otherwise, it should be disassembled for maintenance (dried) and the grounding should be checked for firmness;
The gap between the impeller and the tearing mechanism (base cover plate) is 0.3~0.5. After long-term use in the medium, this gap may increase due to wear and should be adjusted as follows: disconnect the power supply, loosen the fixing screws, and rotate the cover plate by an appropriate angle to restore the original gap;
3. After multiple uses, the electric pump must be placed in clean water and run for several minutes to prevent sediment from leaving inside the pump and ensure its cleanliness;
4. After six months of normal operation in the specified medium, the sealing condition of the oil chamber of the electric pump should be checked, and the 10 #~30 # engine oil should be replaced. If necessary, the mechanical seals should be replaced. For electric pumps used under harsh working conditions, regular maintenance should be carried out;
The oil change method is as follows: place the pump in place with the oil chamber plug (located on the inside of the water outlet) facing downwards, release lubricating oil, then clean the oil chamber with deep washing oil, inject an appropriate amount of oil (about 70%~80%), replace with a new O-ring, and tighten the plug.
If water (milky emulsion) is found in the oil, rinse the oil chamber well according to regulations and reinstall the oil. It must be rechecked after three weeks. If the oil turns into emulsion again, the mechanical seal should be inspected and replaced if necessary (contact our maintenance department). If replacing the seal by oneself, an air tightness test (air pressure of 0.5kg/cm2) must be conducted
5. In case of a malfunction, if the cause cannot be determined and the troubleshooting methods provided later still cannot solve the problem, do not adopt temporary solutions, and do not dismantle or repair without authorization. Instead, contact our factory's maintenance department.

Kaimei Pump Industry Co., LtdSubmersible pumpSelection Notice

1Tear type submersible pumpProduct name and model,Tear type submersible pumpPipeline diameter,Tear type submersible pumpUsing head (m),Tear type submersible pumpMotor power (KW),Tear type submersible pumpMotor speed (r/min),Tear type submersible pumpVoltage [V],Tear type submersible pumpThe suction range used (m),Tear type submersible pumpName, specific gravity, viscosity, corrosiveness, and toxicity of the medium used
2、 If our company has already been selected by the design unitTear type submersible pumpModel, please pressTear type submersible pumpOrder the model directly from the marketing department of Kaimei Pump Industry Company.
3、 Please provide detailed product usage requirements as much as possible to ensure the correctness of our selection and improve the maximum efficiency of use.
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