Centrifugal pump is also called sand pump in the drilling mud system, drilling fluids centrifugal pump has a very important role in drilling fluids solids control system, mainly used in extracting the drilling fluids which has viscosity and has solid particles, and it is the power source of desander, desilter and jet mud mixer.

The working environment of centrifugal pump is bad since it need to deliver the drilling fluids for a long time, that is why the seal of shaft end is required to be very reliable. The common shaft seals of centrifugal pump have two kinds: packing seal and mechanical seal. The shaft seal ensures the centrifugal pump can work normally and efficiently. When centrifugal pump is working, the pump shaft is rotary but the shell is motionless, if the annular space between them does not seal or is sealed badly, the air outside will go into low-pressure area of impeller center, the flow and efficiency will decrease. In general, we can use the mechanical seal or packing seal to realize the seal between shaft and shell.

So we need quality and efficient drilling fluids centrifugal pump, the special characteristics of KOSUN Centrifugal Pump includes :

1. Adopts international advanced level of high wear-resistant hard alloy mechanical seal, has a long service life. And packing seal is used to prevent accidents.

2. Imported bearing ensures the centrifugal pump can run stably for a long time.

3. Bearing is generally lubricated by lubricating oil or lubricating grease, thus, the service life is greatly lengthened.

4. Uses thicker pump shell, the passage shape is more reasonable, the turbulence is reduced to the minimum compared with the conventional centrifugal pump.

5. Pump body with open structure so that its installation, repairing and maintenance are more convenient.

6. Impeller, flow components adopt highly wear-resistant cast iron to prevent the abrasion and corrosion. Besides, the service life is lengthened by 50%.