GW pipeline sewage pump-Global supplier

1、 Scope of application of pipeline sewage pump:
Pipeline sewage pumps are suitable for the discharge of severely polluted wastewater in factories and commercial areas, sewage discharge stations in main residential areas, water distribution systems in urban sewage treatment plants, drainage stations in civil air defense systems, water supply equipment in water plants, sewage discharge in hospitals and hotels, municipal engineering construction sites, mining equipment, rural biogas digesters, farmland irrigation and other industries. They can also be used to transport granular sewage and pollutants, as well as clean water and weakly corrosive media.

2、 Service conditions for pipeline sewage pump:
1. The pipeline sewage pump series products are suitable for rated voltage of 380V and power frequency of 50Hz;
2. The medium temperature does not exceed 40 degrees Celsius, the medium density is ≤ 1150kg/m3, and the pH value is between 5-9;
3. Altitude not exceeding 1000 meters;
4. The annual viscosity of the conveying medium shall not exceed 1000CP;
5. The material of pipeline sewage pumps is mainly cast iron and cannot be used in highly corrosive or corrosive media.
Attention: Before selecting or installing the pipeline sewage pump, the actual usage conditions must comply with the above terms to ensure the correct use of the product!

管道排污泵构造图

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3、 Characteristics of pipeline sewage pump:
1. Adopting a double blade impeller structure greatly improves the ability of pollutants to pass through;
2. The pipeline sewage pump adopts a new type of friction pair for sealing and operates in the oil chamber for a long time;
3. The pipeline sewage pump has a compact overall structure, small volume, low noise, significant energy-saving effect, easy maintenance, and convenient replacement for users;
4. The automatic control cabinet can automatically control the over movement and stop of the pipeline sewage pump according to the required liquefaction changes, without the need for dedicated personnel supervision, making it extremely convenient to use;
5. Installation methods can be provided according to user needs, and pipeline sewage pumps bring great convenience to installation and maintenance. People do not need to enter the sewage pit for this purpose;
6. Can be used within the design scope while ensuring that the motor does not overload;
7. If the pipeline sewage pump is equipped with an outdoor motor, there is no need to build a pump room, and it can be directly installed and used outdoors to save costs.

4、 Common fault analysis and troubleshooting methods:

Fault phenomenon

cause analysis

Troubleshooting

Insufficient flow or no water output

1Wrong rotation direction of impeller

2Is the outlet valve open and intact

3The impeller of the pipeline is blocked

4The speed is too low

5The head is too high

6High density of pumping medium

7High viscosity of the medium

8Wear at the sealing ring mouth

1Adjust the rotation direction of the impeller

2Check, repair, and eliminate

3Clean up debris

4Check electrical equipment and circuits

5Change the pump or reduce the head

6Dilute with water to reduce concentration

7Reduce viscosity

8Replace

Unstable operation

1Unbalanced impeller

2Bearing damage

1Send to the manufacturing plant for replacement or calibration

2Replace

The pump cannot start

1Lack of phase

2The impeller is stuck

3Winding, connector or cable open circuit

4The stator winding is burnt out

5Electrical control malfunction

1Check the circuit for repair

2Remove debris

3Check and repair with an ohmmeter

4Repair and replace the winding

5Repair or replace

Excessive current

1Low working voltage

2Pipeline and impeller are blocked

3The height or viscosity of the liquid being pumped is relatively high

4Using a low head

1Adjust the working voltage

2Clean up pipeline and impeller blockages

3Change density and viscosity

4Reduce flow and increase head

Low insulation resistance

1Leakage at the power supply terminal of the cable

2Cable damage

3Mechanical seal wear leads to leakage

4EachOFailure of the sealing ring

5The casing is corroded by the medium and leaks water

1Tighten the compression nut

2Replace

3Replace

4Replace

5Repair

If you have any questions, you can call: 021-57239999 orClick to consult experts for selection and quotation