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Yongjia Quanda Pump and Valve Manufacturing Co., Ltd

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18968989982
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Modao Industrial Zone, Oubei Town, Yongjia, Wenzhou, Zhejiang Province

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Cutting submersible sewage pump AS

NegotiableUpdate on 03/13

Model

Nature of the Manufacturer: Producers

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Place of Origin

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Overview

Brand: Quanda Pump Valve Address: Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province Model: AS Manufacturer Direct Sales Power: 1.1~7.5kw Head: 4~25m Flow: 15~145 (m3/h)

Product Details

ASCutting submersible sewage 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. The hydraulic performance of this series of sewage pumps is advanced and mature. After performance testing, all indicators of the products meet the relevant design requirements.

AS cutting submersible sewage pumpWhat are the advantages

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 materials for 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 cutting submersible sewage pumpMain application industries

Can be used for 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 cutting submersible sewage pumpModel representation method

http://www.quandabf.cn/paiwubeng/pr_30.html

AS cutting submersible sewage pumpSelection parameters

Submersible sewage pump model	internet traffic (m 3 /h)	lift (m)	power (kw)	rotational speed (r/min)	voltage (V)	Equipped with inner diameter of rubber hose (mm)
AS10-2W/CBsubmersible sewage pump	15	4	1.1	2850	380	76
AS10-2CBsubmersible sewage pump	15	4.5	1.1	2850	380	76
AS16-2CBsubmersible sewage pump	29	7.6	1.5	2850	380	76
AS30-2CBsubmersible sewage pump	42	11	3	2850	380	76
AS55-2CBsubmersible sewage pump	45	13	5.5	2900	380	127
AS55-4CBsubmersible sewage pump	100	7.5	5.5	1450	380	152
AS75-2CBsubmersible sewage pump	60	18	7.5	2900	380	127
AS75-4CBsubmersible sewage pump	145	10	7.5	1450	380	152
AV14-4submersible sewage pump	22	5.8	1.5	1450	380	76
AV55-2submersible sewage pump	30	20	5.5	2900	380	76
AV75-2submersible sewage pump	30	25	7.5	2900	380	76

AS cutting submersible sewage pumpstructure

1	base	10	cable
2	pump body	11	Upper cover
3	Bearing body	12	bearing
4	axle	13	mechanical seal
5	lip seal	14	flat key
6	motor housing	15	IMPELLER NUT
7	Stator core	16	impeller
8	Rotor core	17	bent pipe
9	Incoming line sealing

AS cutting submersible sewage pumpPerformance Curve

AS cutting submersible sewage pumpPrecautions for use

1. It is strictly prohibited to use the cable of AS type tear type submersible sewage pump to lift or hang the water pump. When transporting or hanging 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 awayIt is also possible to reduce the inner diameter appropriately, but it can easily cause blockage, reduce conveying efficiency, and be uneconomical;
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 cutting submersible sewage pumpCorrect usage method

Before starting the AS type tear type submersible sewage 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 cutting submersible sewage pumpINSTALLATION REQUIREMENTS

Proper installation and use are the basic guarantees for the long-term and normal operation of AS tear type submersible sewage pumps. 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 electric 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.

AS cutting submersible sewage pumpinspection and maintenance

The AS type tear type submersible sewage pump 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 pump maximum durability. However, to ensure 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.

AS cutting submersible sewage pumpTroubleshooting

Reason for malfunction

cause analysis

processing method

The flow rate or head of the pump decreases

1.Pump reversal

2The conveying head is too high.

3The suction medium goes through a bypass.

4The water outlet pipe is leaking.

5The outlet pipe may be partially blocked by sediment

6The pump is partially blocked.

7Impeller/The base is worn.

1Turn off the main power supply of the control box and replace any two-phase power lines.

2、 Check:aIs the selected pump model correct.

bIs the size of the water outlet pipe correct.

3、 Check if the valve is closed tightly, and then fully load test the pump.

4、 Identify the leak and make corrections accordingly.

5、 Inspect pipelines, clean or replace with new ones.

6、 Lift the pump surge, and if the pump is placed inside the filter screen, it also needs to be inspected and cleaned

7、 Lift the pump to adjust the clearance or replace parts.

No flow after pump operation

1Air blockage.

2Check the water discharge valve.

3Pump reversal.

1、aOpen and close the valve several times in succession.

bStart and stop the pump several times, with a gap between each restart2—3minute

cAccording to different installation methods, check whether an air release valve needs to be installed

2、aIf the valve is in the closed state, it should be opened.

bIf the installation is reversed, it should be reversed again.

The pump starts and stops too frequently

1The distance set by the float switch is too short.

2The check valve is malfunctioning and cannot check back, causing the liquid to flow back into the sewage tank.

1Reset the float switch to extend the running time.

2Inspect and repair.

Stop the malfunction

1Floating ball closes, pavilion stops'Malfunction”.

2The float on the float is stuck'work'where

1Check and replace if necessary.

2If necessary, the position can be changed.

After the pump is started, the circuit breaker/Overloader trips open

1Low voltage.

2The voltage is too high.

3The wiring of the electric sarcasm is incorrect

4Mud has accumulated at the bottom of the snail shell or?It's sediment.

1、aCheck the voltage of the control box. If the voltage is too low, it cannot be used temporarily.bIf the cable is too long and causes excessive voltage drop, the cable should be shortened as much as possible and thicker cables should be selected appropriately.

2Install a transformer and plug the voltage hole into the specified range.

3Check the cable color codes and connector numbers in the control box and inspect the wiring

4Clean the pump and sewage tank, refer to the relevant sections in the installation instructions.

The pump cannot be started, the fuse is blown or the circuit breaker is tripped

1Floating ball malfunction.

2The winding, joint or cable is broken.

3The pump is blocked

1Check if the bypass float switch can start the pump. If so, the float switch should be checked.

2Check with an ohmmeter. If it is proven to be a circuit, check the winding, terminals, and cables.

3Cut off the power, remove the pump from the sewage tank, clear obstacles, and try it out before resetting.

The pump cannot start, but the fuse is not broken or the overload protector does not trip

1No electricity.

2Windings, cables, connectors, or control switches are disconnected.

1Check if the control box has power.

2Check the joints and windings of cables and motors.

Please provide as much as possible for ordering:1. Model 2. Diameter 3. Head (m) 4. Flow rate 5. Motor power (KW) 6. Speed (R/min) 7. Material with accessories 8. Voltage (V)

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