product overview

The WQ series submersible sewage pump is a newly developed submersible pump based on the original product. This type of pump highlights reliability and environmental friendliness, can adapt to various working environments, optimizes structural design, further improves the performance of submersible sewage pumps, and has made breakthrough progress in leak prevention technology.

This type of pump is mainly used in industries such as municipal engineering, industrial construction, hospitals, and mines to transport solid particles and various long fibers in sewage, wastewater, and urban sewage, especially playing a key role in the treatment of high concentration sewage.

This series of products has been certified with product mark and number: (Shanghai) XK06-003-00039.

The product complies with the GB/T 246742009 standard for submersible sewage pumps.

Product scope of application

Suitable for municipal engineering, industry and agriculture, hospitals, construction, hotels, restaurants and other industries, used for conveying solid particles and various long fiber wastewater, urban domestic sewage and rainwater, as well as raw water transportation, aquaculture, irrigation, etc.

scope of work

• Flow rate: 5.6~4800m ³/h;

• Lift: 4-65m;

• Medium temperature: T ≤ 40 ° C;

• Medium density: ≤ 1.1x 10kg/m ³;

• Medium pH range: 5-9;

• Motor insulation level: F level;

• The diameter of the solid medium should not exceed one-third of the outlet diameter, and the fiber length should be less than four times the outlet diameter;

• Protection level: IPX8.

Structural diagram of WQ pump

Serial number and name

Product Features

Characteristics of ordinary pump products

• Sealing design for submersible cables; To prevent water from entering the motor through the cable core, the epoxy resin is directly sealed with the stripped rubber outer layer of the cable copper core to ensure that no liquid seeps into the motor through the cable. The wiring method is plug-in, which is fast, convenient, and reliable;

• Non clogging impeller design, excellent performance, stability, maturity, strong passing ability, impeller verified by dynamic and static balance, low vibration, and balanced operation;

• The motor has F-class insulation, with a shell protection level of IPX8, and is a pump type with a power of ≤ 7.5kW. The motor is equipped with a 105 ° C thermal protector to ensure that the water pump motor does not overheat during operation and prevent equipment from burning out; Pump type with a power of ≤ 75kW, equipped with a 145 ° C thermal protector inside the motor stator, with a maximum working temperature of up to 145 ° C, ensuring that the motor does not overheat during the operation of the water pump and preventing equipment from burning out;

• The main shaft adopts a short axis extension structure design, which reduces vibration and reduces the load on the bearings, thereby extending the service life of the bearings;

• The shaft seal consists of two independent single end mechanical seals, which isolate the motor from the pump seal. It is installed in series, providing double protection and further improving the reliability of the seal, ensuring the long-term reliable operation of the pump;

• The pump type with a power of ≤ 7.5kW/2 is equipped with a leakage signal sensor in the oil chamber, which can continuously and effectively monitor the operating status of the water pump. Preventive protective measures can be taken at the most appropriate time to eliminate faults and ensure the operation of the pump;

• The pump type with a power of ≥ 11KW is equipped with leakage signal sensors in the end cover chamber, stator chamber, and oil chamber, which can continuously and effectively monitor the operating status of the water pump. The pump can be protected through the control cabinet, eliminate faults, and ensure the operation of the pump;

• The bearing adopts rolling bearings, which can withstand axial and radial loads and separate from the medium conveyed by the pump;

• The lower bearing is a maintenance free heavy-duty double row angular ball bearing that can reliably withstand the radial and axial forces generated by the operation of the water pump, ensuring the correct position of the impeller in the volute and a long bearing life;

• Modular design of the whole machine, each motor model can be matched with several pump head models, with good universality, and the motor components are designed in a streamlined cylindrical shape, with a beautiful appearance and low resistance;

• The pump body, motor casing, and impeller are made of gray cast iron, and the main shaft is made of martensitic stainless steel;

• The pump type with a discharge diameter of 150~350 can be equipped with an automatic backwash device according to user needs, which can quickly flush the sediment in the pump pit during operation, thereby ensuring smooth pump operation.

Working principle

The FCX submersible electric flushing valve is connected to the volute of various submersible sewage pumps and submersible drainage pumps, and its valve is normally open. When the pump is started, the valve is open, and the pressure of the pump causes the liquid flow to be forcefully sprayed out through the valve, rushing towards the surrounding area of the pump pit, producing a highly agitated liquid flow that repeatedly flushes the pump pit. The sludge and covering layer pollutants are quickly dispersed and stirred into a suspended night flow. Close the valve in about 1 minute (the opening and closing time of the valve can be set by each pump station as needed), and the sludge and dirt will be discharged from the pump pit together with the liquid flow. The valve works repeatedly according to the prescribed time to achieve automatic and effortless cleaning of the pump pit. This greatly reduces the maintenance workload and cost of the pump station.

Conditions of Use

• PH value: 5-9;

• Liquid flow density: 1-1.1 kg/dm ³;

• Normal operating temperature: 0~40 ° C;

• Protection level: IP68;

• Diving depth: 5m;

• Power supply: 36V (DC).