Centrifugal pump is the important mud equipment in oil drilling fluids solids control system. It is a essential device for the whole drilling mud system. Drilling fluids centrifugal pump is an ideal corollary equipment which provides power for desander, desilter and the jet mud mixer, it also serves as the replenishment pump of slurry pump.

Because drilling fluids centrifugal pump is always working in the bad environment, the material of them are required to have enough wear resistance and corrosion resistance. At the same time, we should often do some daily maintenance for them when they are used in drilling mud system.
 

The Detailed Maintenance Method of Centrifugal Pump

1. Impeller: It must be renewed if serious cavitation ( in particular the main vanes ) and excessive damage.

2. Shaft: repair and maintain or renew it if the run out is over 0.05 mm, the location of lip seal had been seriously bruised and the surface of shaft had been damaged.

3. Shaft sleeve: please renew it if rough surface and serious damage.

4. Lip seal: the dismantled lip seal must be changed.

5. Ball bearing: for the bearing which is too wearing, and too tight, loose or with noise when operating, it is sure to renew it.

6. All the parts and particularly the rotating ring of mechanical seal, ‘0’ sealing groove, thread, sealing face, bearing and its lubricating location must be carefully cleaned.

7. When assembling the inboard bearing, the two bearings should be back to back, sure to buckle the lock washer after screwing the locknut.

8. A thin layer of anti-friction should be smeared on the shaft before fitting the shaft sleeve.

9. The packing gland cannot be screwed too tightly and keep the liquid leaking drop by drop, or the packing will be burned down when the pump operates.

10. The assembling can be proceeded as the opposite sequence and pump shaft should smoothly rotate after assembling.

KOSUN is a leader and professional in oil drilling fluid solids control industry, we can manufacture series centrifugal pumps for the oilfield. Besides, the other solids control equipment KOSUN manufactures are also the professional devices for drilling. The products we provide including shale shaker, shale shaker screen, desander, desilter, vacuum degasser, centrifugal pump, submersible slurry pump, shear pump, mud agitator, mud gun, drilling fluids mud cleaner, decanter centrifuge, jet mud mixer, mud tank, diesel tank, water tank and complete solids control system, etc.