detailed information

Overview of AS and AV tear type submersible sewage pumps:

The AS and AV tear type submersible sewage pumps are developed using advanced foreign technology and are suitable for supplying and transporting industrial and commercial sewage, daily sewage, urban sewage treatment plant drainage systems, civil air defense system drainage stations, and water supply and drainage in water plants. Specially suitable for transporting liquids containing hard solids, fibrous materials, as well as liquids that are particularly dirty, sticky, and slippery. All AS pumps are equipped with a pre adjusted tearing mechanism, which can tear and discharge long fibers, bags, belts, grass, cloth strips, etc. in sewage. Therefore, working in sewage will not cause blockages and the operation is very reliable.

Meaning of AS and AV tear type submersible sewage pumps:

Features of AS and AV tear type submersible sewage pumps:

1. Advanced technology is selected, with strong sewage discharge capacity, no blockage, and the ability to effectively pass solid particles with diameters ranging from 30 to 80 millimeters.
2. The tearing mechanism can tear, block, and smoothly discharge fibrous substances without the need for a filter screen on the pump.
3. Reasonable planning, small supporting motor power, significant energy-saving effect.
4. Use the latest mechanical seals to ensure the safe and continuous operation of the pump for over 8000 hours.
5. Compact structure, easy to move, simple equipment, can reduce project costs, without the need to create a pump room.
6. It can be used within the full head scale while ensuring that the motor does not overload.
7. The float switch can actively control the start and stop of the pump according to the required water level, without the need for a dedicated person to guard.
8. The dual rail active equipment system brings great convenience to equipment and repair, and people do not have to enter and exit the sewage pit for this.
9. The fully active maintenance control box has effectively maintained the leakage, water leakage, and overload of the product, improving its safety and reliability.

Structural diagram of AS and AV tear type submersible sewage pumps:

Technical parameters of AS and AV tear type submersible sewage pumps:

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

Application of AS and AV tear type submersible sewage pumps:

1. The discharge of severely polluted wastewater from factories and businesses;
2. Urban sewage treatment plant drainage system;
3. Sewage discharge in residential areas;
4. Civil air defense system drainage;
5. Wastewater discharge from hospitals, hotels, etc;
6. Municipal engineering and construction sites.

Performance parameters of AS and AV tear type submersible sewage pumps:

Application explanation of AS and AV tear type submersible sewage pumps:

Before starting the water pump, a qualified electrician should inspect the system. Ensure the adoption of the electrical maintenance measures required by the following items.
Before starting the pump, use a 0-500V megohmmeter to check the insulation resistance of the motor stator winding to ground, which should not be less than 0.5 megohms.
2. The power supply voltage must be within the range of ± 5% of the additional voltage indicated on the nameplate, and the increase in power supply voltage is not allowed to exceed 10% of the additional voltage.
If the power supply is far away from the local area where the water pump is used, the cross-sectional area of the cable should be thickened and the joints should be minimized as much as possible, otherwise the voltage will drop too much. The cable joints should be sealed and waterproofed to prevent water leakage from entering from here.
In a four core cable, the one with the symbol '' is the grounding wire (usually a green yellow dual color wire). To ensure safety during use, it is necessary to firmly connect the grounding wire and make it 50 mm longer than other wires
When conditions permit, electrical maintenance equipment may include grounding maintainers, ground leakage circuit breakers, etc. However, in any situation, it is necessary to install a slow melting fuse that matches the additional current value of the water pump.
5. Electrical control equipment should be moisture-proof and placed in a moisture-proof area. The placement of cables should be careful not to block them at the suction port of the pump.
6. Check the rolling direction of the rotor.
When using a three-phase power pump, the rolling direction should be checked for the first time the pump is started or after starting the equipment. Incorrect rolling direction can reduce the efficiency of the pump and damage it, causing the impeller to fall off.
To determine the rolling direction of the rotor, the water pump should be raised and briefly started before the final equipment. According to the following conditions, the rolling direction of the rotor (i.e. motor) is correct.
When viewed from the top of the pump, the rolling direction of the pump is opposite to the direction of the rotor transmission at the moment of starting.
8. Looking up at the suction port of the pump from the bottom, the blades rotate counterclockwise.
If several water pumps are connected to a controller, it is necessary to check each pump separately.
If the rotation direction is incorrect, the rolling direction can be changed by changing the orientation of any two of the three-phase wires on the AC controller.

Repair and maintenance of AS and AV tear type submersible sewage pumps:

AS and AV tear type submersible sewage pumps are reliable and have excellent performance. Each unit undergoes a thorough final inspection before leaving the factory. The permanently smooth ball bearings give the water pump maximum durability. However, in order to ensure the service life of the water pump, it is recommended to conduct regular inspections and maintenance.
1. Adjustment of the base cover plate
After prolonged use in media with wear and tear, the gap between the impeller and the base cover plate may increase.
Remove the power supply, loosen the fixing screws, and rotate the cover plate to adjust the gap to its original condition (0.3-0.5 mm).
2. Cleaning:
To prevent impurities from accumulating inside the water pump when not in use, clean water can be pumped to clean the water pump. The water pump is not necessary for a long time and should be placed in a dry place, and attention should be paid to antifreeze
3. Oil injection and oil change
The oil chamber of AS and AV tear type submersible sewage pumps has been filled with an appropriate amount of smooth oil before leaving the factory packaging. This oil should be replaced annually.
Oil change should be carried out according to the following methods:
Place the pump so that the oil chamber plug (located on the inner side of the water outlet) faces downwards, loosen the plug, release smooth oil, then clean the oil chamber with 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, flush the oil chamber according to regulations and install the oil from the beginning, then tighten the screw plug with a new O-ring. It is necessary to re-examine from the beginning after three weeks. If the oil turns into an emulsion again, the mechanical seal should be inspected. Replace if necessary (contact our repair department). If you want to replace the sealing hole by yourself, you must conduct an airtight test. (Air pressure 0.5kg/cm2)
Smooth oil: 10 [#] mechanical oil
4. Work problems
If there is a malfunction at work and the cause cannot be determined, and the troubleshooting methods proposed later still cannot solve the problem, please do not adopt temporary solutions, nor do you dismantle or repair it without authorization. Instead, please contact our repair department.
This is particularly applicable to the repeated tripping phenomenon caused by overcurrent circuit breakers in the control section.

Attention to AS and AV tear type submersible sewage pump equipment:

The correct use of equipment is the basic guarantee for the long-term and normal operation of this pump, and users are reminded not to be careless.
1. It is necessary to connect the power line of the water pump to the supporting electrical control or thermal relay maintenance, and it should not be directly connected to the main power supply.
2. Whether using an active coupling device system or using a rubber hose, the lifting chain cable and power cord can hang freely for 10-20 centimeters, and excessive length will be blocked by the pump suction.
When the mud at the bottom of the water tank is too thick or there are too many hard stones, the water pump should be lifted to a height of at least 30 centimeters above the substance.
4. The drainage pipe of the water pump should be selected according to the instructions and should not be reduced in diameter.
5. When there is no possibility of water backflow in a single water pump equipment, check valves or gate valves should be avoided as much as possible.
When two water pumps are connected in parallel, the gate valve and check valve should not be placed at the main pipe, which may cause sediment to backflow to the upper end of the standby pump and prevent the check valve from starting. If possible, a dry well should be installed at the horizontal pipe, and check valves and gate valves should be placed on the equipment.
7. After connecting the power supply, if the jog switch rotates in the forward direction, the water pump can be slowly sent into the pool, and the rotation should immediately switch between any two items in the three-phase power supply.
8. If the water pump causes a sensation during operation and a few reduce the spraying force, it should be immediately checked whether the water pump rotates and adjusted. If the water pump rotates for too long, it will be destroyed
During long-term use of the AS pump, regardless of whether it is active or manual, it should not be started frequently, and generally should not exceed six times per hour.
Before repairing or replacing the water pump, it is necessary to cut off the power supply.

Performance parameters of AS and AV tear type submersible sewage pumps: