A multi-stage centrifugal pump is composed of two or more centrifugal pumps with the same function connected in series to increase the set pressure. It has the following advantages:
1. It is composed of a vertical structure and has the characteristics of small footprint. Because the center of gravity of the pump is concentrated at the center of the pump foot, it has good stability, low vibration, and long service life during operation.
2. The diameter of the multi-stage centrifugal pump is the same on the same horizontal centerline, and there is no need to change the pipeline structure. It can be installed at any part of the pipeline and is relatively easy to install.
3. Adding a rain cover to the motor can be used outdoors without the need for a pump room, saving resources.
4. It has a wide range of applications and can meet different requirements by changing the pump stage.
5. The structure is simple, the work efficiency is high, and the energy-saving aspect is outstanding.
Application scope of multi-stage centrifugal pump:
Multi stage centrifugal pumps have the advantages of high efficiency, energy saving, wide performance range, safe and stable operation, low noise, long service life, and easy installation and maintenance; By changing the material and sealing form of the pump and adding a cooling system, it can transport hot water, oil, corrosive and abrasive media, etc.
The D-type pump is used to transport clean water or liquids with physical and chemical properties similar to clean water that do not contain solid particles and have a temperature not exceeding 80 ℃. It is suitable for use in mining and urban water supply and drainage engineering.
DG type pumps are used to transport clean water or liquids with physical and chemical properties similar to clean water that do not contain solid particles and have a temperature not higher than 105 ℃. They are used for boiler feedwater or conveying hot water or media similar to hot water.
The MD type pump is used to transport neutral mineral water (particle size less than 0.5 millimeters) with a solid particle content of no more than 1.5% and similar other wastewater. The temperature of the transported medium is not higher than 80 ℃, and it is suitable for occasions such as steel plants, mine drainage, and wastewater transportation.
The DF type pump is used for conveying liquids with a temperature range of -20 ℃ to 105 ℃, free of solid particles, and corrosive.
Horizontal multi-stage centrifugal pump
DY type pumps are used to transport oils and petroleum products that do not contain solid particles, have a temperature range of -20 ℃ to 150 ℃, and a viscosity of less than 120 cSt.