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    Product Overview:
    QW (WQ) submersible sewage pump has the characteristics of anti-winding, not easy to block, automatic installation and automatic control. It has a good effect in discharging solid particles and long-fiber waste. The impeller structure and mechanical seal used in this type of pump can effectively transport solids and long fibers. The pump impeller adopts the form of single flow passage or double flow passage, which is similar to a curved pipe with the same cross-section size, and has good flow performance; the impeller is stable and reliable in operation by dynamic and static balance tests. This type of pump is installed in various ways, simplifying the pumping station.

    Product features:
    1. Adopting a single-plate or double-blade impeller structure, which improves the ability of dirt to pass, can effectively pass 5 times the fiber diameter of the pump and solid particles with a diameter of about 50% of the pump diameter.

    2. The mechanical seal adopts hard and corrosion-resistant tungsten tungsten material, which can make the pump run continuously for more than 8000 hours.

    3. The overall structure is compact, small in size, low in noise, and convenient for maintenance. There is no need to build a pump room, and it can work when submerged in water.

    4. The pump sealed oil chamber is provided with a high anti-interference water leakage detection sensor, and a thermosensitive element is embedded in the stator winding to automatically protect the pump motor.

    5. Can be equipped with an automatic control cabinet according to user needs to automatically protect the pump from water leakage, electrical leakage overload and over temperature, which improves product safety and reliability

    6. The float switch can automatically control the start and stop of the pump according to the required liquid level change. It does not require special supervision and is easy to use.

    7. The QW (WQ) series can be equipped with a dual-rail automatic coupling installation system according to user needs, which brings greater convenience to installation and maintenance, and people do not have to enter the sewage pit for this purpose.

    8. It can be used in full head to ensure that the motor will not be overloaded.
    9. There are two different installation methods, a fixed automatic coupling installation system and a mobile free installation system.

    Third, the main use:
    Suitable for chemical industry, petroleum, pharmaceutical, mining, papermaking industry, cement plant, steel plant, power plant, coal processing industry, and urban sewage treatment plant drainage system, municipal engineering, construction site and other industries. Can also be used for pumping clean water and corrosive media.

    4. Meaning of model:

    Five, faults and troubleshooting

    Failure phenomenon

    Cause Analysis

    Remove method

    Insufficient flow or water

    Impeller rotation error

    2. Whether the valve is open and intact

    3. Pipe impeller is blocked

    4.Speed is too low

    5. Head is too high

    6.High density of pumped media

    7. Medium viscosity is high

    8. The seal is damaged (at the mouth ring)

    1.Adjust the impeller rotation direction

    2. Inspection, repair, and exclusion

    3.Clean up the debris

    4. Check electrical equipment and circuits

    5. Change pump or lower head

    6. Dilute with water to reduce concentration

    7. Reduce viscosity

    8. Replace

    Unstable operation

    Impeller imbalance

    2.Bearing damage

    1. Send to the manufacturer for replacement or correction

    2. replace

    Pump does not start

    Lack of phase

    2. The impeller is stuck

    3. Opening of windings, connectors or cables

    4. Stator winding burned out

    5. Failure of electrical control

    1. Check the line for repair

    2. Exclude debris

    3. Check the repair with an ohmmeter

    4. Repair and replace windings

    5. Repair or exchange

    Overcurrent

    1. Low working voltage

    2. Pipes and impellers are blocked

    3.High height or viscosity of pumped liquid

    4. Use head too low

    1. Adjust the working voltage

    2. Manage pipes and impellers

    3. Change density or viscosity

    4.Reduce flow and increase head

    Low insulation group

    Leakage of 1-tun cable power terminal

    2.Broken cable

    3. Leakage from mechanical seal wear

    4.Each 0-shaped seal fails

    5.A case is leaking due to medium corrosion

    1. Tighten the maid

    2. replace

    3. Replace

    4. Replace

    5. Patch

    沪ICP备11024687号 上海上久泵业制造有限公司 Copyright Shanghai ICP No. 11024687 Shanghai Shangjiu Pump Manufacturing Co., Ltd. Shanghai Public Network Security No. 31010702002167

    Contact: Mr. Lin Tel: 021-62821119 上海珍岛 Technical Support: Shanghai Zhendao

    1816158
    656530217
    758731758
    401302027
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