Model Meaning

Product Introduction
AS cutting and tearing submersible sewage pumpSuitable for conveying liquids containing hard solids, fibrous materials, as well as particularly dirty, sticky, and slippery liquids. All AS pumps are equipped with adjusted tearing mechanisms that can tear and discharge long fibers, bags, belts, grass, cloth, etc. in sewage. Therefore, working in sewage will not cause blockages and operates reliably.

Product Features
1. Strong sewage discharge capacity, unobstructed, and capable of effectively passing solid particles with a diameter of 30 to 80 millimeters.
2. The tearing mechanism can tear, cut, and smoothly discharge fibrous substances without the need for a filter screen on the pump.
3. Reasonable design, small matching motor power, significant energy-saving effect.
4. By using mechanical seals, the pump can operate safely and continuously for more than 8000 hours.
5. Compact structure, easy to move, simple installation, can reduce engineering costs, and does not require the construction of a pump room.
6. It can be used within the full head range while ensuring that the motor does not overload.
7. The float switch can automatically control the start and stop of the pump according to the required water level changes, without the need for a dedicated person to supervise.
8. 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.
9. 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.

application
1. The discharge of severely polluted wastewater from factories and businesses.
2. Urban sewage treatment plant drainage system.
3. Sewage drainage stations in residential areas.
4. Civil air defense system drainage station.
5. Wastewater discharge from hospitals and hotels.
6. Municipal engineering construction sites.
7. Exploration and mining supporting equipment.
8. Rural biogas digesters and farmland irrigation.

working conditions
AS: Approximately 40 ℃ when used continuously. Intermittent use (not exceeding 5 minutes) at 80 ℃.
AS: The main component material of the series pump is cast iron, so it cannot be used for pumping highly corrosive liquids.

STRUCTURE DESCRIPTION
1. The pump has a compact structure, small volume, beautiful appearance, small footprint, and saves construction costs;
2. The suction and outlet of the pump are on the same centerline, simplifying the connection of the pipeline;
3. According to the actual situation, the inlet and outlet of the pump can be assembled in different directions of 90 °, 180 °, and 270 °;
4. According to the actual situation, the outlet of the pump can be assembled into 1-5 outlets to meet different head requirements on the same pump;

performance parameter

Performance Curve

External dimensions

	model	D	F	G	H	J	K	L	M	N
	AS10-2W/CB	76	280	220	110	130	70	100	210	373
	AS10-2CB	76	280	220	110	130	70	100	210	373
	AS16-2CB	76	280	220	110	130	70	100	210	373
	AS30-2CB	76	335	220	110	155	70	100	260	398
	AS55-2CB	127	630	350	175	240	160	310	430	688
	AS55-4CB	127	630	350	175	240	160	310	430	688
	AS75-2CB	152	655	400	205	248	190	335	430	740
	AS75-4CB	152	655	400	205	248	190	335	430	740

Transportation and usage precautions
1. Never allow the use of cables to lift or hang water pumps. When transporting or hanging water pumps, a chain with a hook can be used to hook them 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 pump seat is placed on mud or floating sand, the pump may sink due to vibration. In this case, it is recommended that the user suspend the 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 a low 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.

instructions
Before starting the water pump, a qualified electrician should inspect the system to ensure the following electrical protection measures are required:
1. Before starting the pump, use a 0-500 megohmmeter to check the insulation resistance between phases and relative to ground of the motor. The low 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%. When the power supply is far away from the water pump, the cross-sectional area of the cable should be increased and the number of 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 installing 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.

Maintenance and upkeep instructions
AS pump products are reliable and have excellent performance. Each unit has been carefully inspected before leaving the factory The lubricated ball bearings make the water pump durable. However, in order to ensure the service life of the water pump, it is recommended to conduct regular inspections and maintenance.
1. Adjustment of base cover plate:
After long-term 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 state (03-0.5MM)

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. If the water pump is not used for a long time, it should be placed in a dry place and attention should be paid to antifreeze

3. Oil injection and oil change
The oil chamber of the AS cutting submersible sewage pump has been filled with an appropriate amount of lubricating oil before leaving the factory packaging This oil should be replaced annually. The oil change should be carried out according to the following method: place the pump so that the oil chamber plug (located on the inside of the water outlet) faces downwards, loosen the plug, release the lubricating oil, then clean the oil chamber with washing oil, and inject an appropriate amount of oil (about 70-80%), and replace it with a new one. Circle, tighten the screw plug. If water (milky emulsion foot) is found in the oil, rinse the oil chamber according to regulations and reinstall the oil, tighten the screw plug with a new ring. It must be rechecked after three weeks. If the oil turns into emulsion again, the mechanical seal should be checked. If necessary, it should be replaced (with our maintenance department for treatment). If you want to replace the sealing hole by yourself, you must conduct an air tightness test (Air pressure. 5kg/c) Lubricating oil: 10 [#] mechanical oil

4. Operation malfunction
If there is a malfunction during operation and the cause cannot be determined, and the troubleshooting methods proposed later still cannot solve the problem, please do not adopt temporary methods, nor do you dismantle or repair it without authorization. Instead, please contact our factory's maintenance department. This is particularly applicable to the repeated tripping phenomenon caused by overcurrent circuit breakers in the control section.

Installation precautions
Proper installation and use are the basic guarantees for the long-term and normal operation of this pump, and users are reminded not to be careless:
1. The power line of the water pump must be connected to the supporting electrical control device or matching thermal relay protector, and must not be directly connected to the main power supply;
2. Whether it is a mobile installation or an automatic fixed installation, the lifting chain and cable should not hang too long to avoid being sucked in and cut off by the pump;
3. When there is too much mud or hard stones at the bottom of the water tank, the pump should be placed 30cm above the substance or on a large iron plate;
4. The water pump drainage pipe should be selected according to the instructions and should not be changed arbitrarily;
5. When a single water pump is installed in a situation where there is no possibility of water backflow, check valves should be avoided as much as possible;
6. 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 cause the check valve to fail to start. If possible, a dry well should be installed at the horizontal pipe, and check valves and thrust valves should be installed and placed;
7. Only after ensuring the correct direction of the water pump can it be put into continuous operation;
8. During the long-term use of this series of water pumps, whether automatic or manual, they should not be started frequently, and generally should not exceed six times per hour;
9. When repairing the water pump, the power must be cut off.

Fault analysis and troubleshooting methods