QW submersible sewage pump

The QW submersible sewage pump is used in working environments with shallow water levels. The pump is specially designed, and the motor can be cooled by internal circulating water to ensure safe operation of the motor. This solves the problem of long-term dehydration operation of the motor part of a downward suction submersible pump.

The QWZL series is suitable for working environments with shallow water levels. The pump is specially designed, and the motor can be cooled by internal circulating water to ensure safe operation of the motor. It solves the problem of long-term dehydration operation of the motor part of a downward suction submersible pump. It is suitable for the suction and transportation of sewage from low water level working faces in mines and construction projects. This pump is lightweight, flexible to move, structurally new, not easily clogged, efficient, long-lasting, automatically coupled, and controlled. Our factory conducts strict inspections on the manufacturing and assembly of product parts, and each electric pump undergoes comprehensive testing according to various technical requirements before leaving the factory.

1、 Technical parameters of QW submersible sewage pump

1. Flow rate: 5-2000m3/h

2. Lift: 5-50m

3. Speed: 580-2900r/min

4. Caliber: DN25-500 mm

5. Temperature range: -15~+60 ℃

6. Work pressure: ≤ 1.0Mpa

7. Power frequency: 50 Hz (frequency can be changed according to actual power supply situation)

2、 Characteristics and scope of application:

1. The QW submersible pump adopts a new technology of double end mechanical seal, which significantly improves its service life and operational stability.

2. Small size, low noise, easy to move and use, low procurement cost, simple and convenient to use.

3. Optional fully protected motor and safety control cabinet, multiple protections can absolutely protect the safety of pump use.

4. Choosing self coupling installation can prevent people from entering the sewage pit, greatly facilitating on-site operations.

Suitable for the discharge of severely polluted industrial wastewater, sewage discharge stations, urban sewage treatment systems, civil air defense system drainage stations, water supply equipment of waterworks, sewage discharge of hospitals and hotels, municipal engineering construction sites, mining supporting machines, rural biogas digesters, farmland irrigation and other industries. It can also be used for conveying granular sewage and pollutants, as well as for clean water and corrosive media.

3、 Attention:

1. No idling without water is allowed, and the liquid level must not be lower than 3/4 of the water pump height (except for internal circulation cooling pumps)

2. After installation, pay attention to the current when testing the machine. If the current is too high, close the valve to control the flow or contact the manufacturer to take measures (generally referring to selecting a head with too much margin)

3. If there are large fibers such as water grass wrapped around the impeller, it should be stopped immediately and cleared in a timely manner.

4. When working in highly corrosive liquids, if conditions permit long-term shutdown, lift the pump off the water surface.

5. High power submersible pumps should avoid frequent starting, and the starting interval of the self coupling voltage reduction starting method should not be less than 15 minutes per time

6. Do not pull or tug on the cables during the transportation of the water pump.

7. Water pump with oil chamber, oil change time is once/6 months

8. The temperature of the medium should be less than 60 ℃.

9. Special operating conditions require communication with our technical department to ultimately determine the selection, material selection, configuration, and other plans.