Multistage pump

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Q J series deep well submersible pump


The QJ type well submersible pump is a water lifting machine that works submerged in water with the motor and pump directly connected. It is suitable for extracting groundwater from deep wells and can also be used for water lifting projects in rivers, reservoirs, and canals; mainly used for agricultural irrigation and water supply for livestock in plateau and mountainous areas, and can also be used for drainage and water supply in cities, factories, railways, mines, and construction sites.

D, DG series multistage pumps


Type D pumps are used to transport clear water or liquids with physical and chemical properties similar to clear water, without solid particles, and at temperatures below 80°C. They are suitable for mining, factories, and urban water supply and drainage.

D, DG series multistage pumps


Type D pumps are used to transport clear water or liquids with physical and chemical properties similar to clear water, without solid particles, and at temperatures below 80°C. They are suitable for mining, factories, and urban water supply and drainage.

D, DG series multistage pumps


Type D pumps are used to transport clear water or liquids with physical and chemical properties similar to clear water, without solid particles, and at temperatures below 80°C. They are suitable for mining, factories, and urban water supply and drainage.

A water pump is an important fluid transport device, widely used in various fields.


The pump transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acidic and alkaline liquids, emulsions, suspensions, liquid metals, etc. It can also transport liquid-gas mixtures and liquids containing suspended solids.

To ensure the normal operation of the water pump and extend its service life, regular maintenance and servicing are required.


Keep the equipment clean, dry, free of oil stains, and without leaks. Regularly check the operating sound, vibration, and leakage of the water pump.

When selecting a water pump, the following points should be considered.


Determine flow rate: Calculate the flow rate based on the specific needs for water usage or liquid transportation. Determine lift: Calculate the vertical height from the water source to the destination, taking into account the resistance loss in the pipes.

Water pumps have a wide range of applications in various fields.


Agricultural irrigation: Extracting groundwater or river water sources for irrigation. Construction engineering: Used for concrete delivery, building drainage, fire protection systems, etc. Industrial production: Transporting various liquids, such as oil, chemical raw materials, liquid ammonia, etc.

Precautions when using sewage pumps


When using sewage pumps, ensure that they are installed correctly and securely to avoid vibrations and noise during operation.

The working principle of a double suction pump


It is mainly based on pressure difference and centrifugal force. When the double-suction pump starts working, both of its inlets will form a negative pressure area, and the liquid will be driven by the pressure difference to flow from the supply system to the pump's suction inlet.