Shanghai Gaotian Pump Co., Ltd
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WQ sewage pump
Product Name: WQ Sewage Pump Model: 100WQ70-7-3 Product Category: Sewage Pump Series → WQ Sewage Pump Caliber Range: DN25-500 Flow Range: 8-2650m3/h H
Product details

WQ type sewage pump

WQ型排污泵



1、 Applicable places

The discharge of sewage from hospitals and hotels, the discharge of severely polluted wastewater from market engineering construction sites, factories and commercial areas, sewage discharge stations in residential areas, urban sewage treatment plant drainage systems, domestic sewage, urban sewage treatment plant drainage systems, civil air defense system drainage stations, water supply from water plants, and irrigation of farmland.

2、 Product Overview:

1. Adopting a large channel anti clogging hydraulic component design greatly improves the ability of pollutants to pass through, effectively passing through 5 times the fiber material of the pump diameter and solid particles with a diameter of about 50% of the pump diameter.

2. Reasonable design, reasonable matching motor, high efficiency, significant energy-saving effect.

3. The mechanical seal adopts a dual channel series seal, made of hard and wear-resistant tungsten carbide, which has the characteristics of durability and wear resistance, and can ensure the safe and continuous operation of the pump for more than 800 hours.

4. The pump structure is compact, small in size, easy to move, and easy to install, without the need to build a pump room. It can work underwater, greatly reducing project costs.

5. There is an oil-water probe installed in the pump oil chamber. When the mechanical seal on the pump side is damaged and water enters the oil chamber, the probe generates a signal to protect the pump.

6. A fully automatic safety protection control cabinet can be equipped according to user needs to monitor pump leakage, electric leakage, overload, and overheating, ensuring reliable and safe pump operation.

3、 Installation, operation, and maintenance prompts

It is strictly prohibited to forcefully pull the cable when installing and transporting the electric pump, in order to avoid causing internal cable breakage, joint bonding, etc., which may cause the pump to malfunction or even burn out the motor.

Please use the electric pump cable grounding wire for correct and reliable grounding during installation. When the electric pump is working, it is strictly prohibited for people or animals to approach the working water area or touch the electric pump. In order to reduce electrical risks, it can only be connected to an appropriate grounding socket.

Overloading operation is strictly prohibited

The cable used with the pump must not be less than 1.2 times the cable area of the electric pump.

During installation, the electric pump must be securely fastened, but the cable must not be subjected to force or rotate together with the start and stop of the electric pump.

When the pump fails to discharge water during operation, it should be checked whether the electric pump is reversing or if the air inside the check valve at the outlet of the electric pump has not been completely discharged.

Regularly check the insulation resistance between phases and relative ground of the electric pump motor, which should not be less than 2MQ. Otherwise, it should be disassembled for maintenance.

After six months of normal operation under specified working conditions, the sealing condition of the oil chamber of the electric pump should be checked. If the oil in the oil chamber is emulsified or water precipitates out, the 10 # engine oil and mechanical seals should be replaced in a timely manner.

After one year of normal operation of the electric pump, a major overhaul should be carried out to replace worn and vulnerable parts, check the condition of fasteners, and replenish and replace lubricating grease to ensure good lubrication of the electric pump during operation.

If the electric pump is not in use, please clean it thoroughly and wipe off any water droplets to prevent rusting

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

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


5、 Performance parameter table:



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