There are several kinds of slurry pumps in the marketplace, for centrifugal slurry pumps, the basic designs of the pumps are remain the same. A centrifugal slurry pump is a type of water pump intended for use in situations where solids are accidentally or intentionally suspended in water.
As centrifugal pumps, slurry pumps rotate water by way of impeller. Depending on the specific application, rotation controls particulates and prevents solids from entering and causing damage or corrosion to other machinery parts.
The slurry pumps are widely used and it will face some problems when working, here bellow we will talk one common problem of slurry pumps: Slurry Pump Discharge failure.
There are many reason for that problem, we will list some for your reference

Intake Faults

Pump not Primed.
Pump or intake pipe not completely filled with liquid.
Suction lift too high.
Insufficient margin between intake pressure and vapor pressure.
Air leaks into intake line.
Intake pipe insufficiently submerged.
Blocked intake.
Intake pipe diameter too small or length of intake pipe too long.

System Faults

If you have checked all the above and still not solve the problem, you may check system problems like bellow

Speed too low.
Wrong direction of rotation.
Total head of system higher than design head.
Entrained air in pump. Pump hopper requires baffles.
Badly installed pipe line or gaskets partly blocking pipe.

Mechanical Faults

And the last thing need to check is mechanical things of the pump
Impeller damaged or worn.
Casing gasket defective, permitting internal leakage.
Foreign matter in impeller.

Thank you for your time and reading, wish could help you on slurry pumps. If you have any future questions on slurry pumps, welcome to contact us anytime. Libra slurry pump will help you as much as we can.