What must be done to deal with abrasives in pumps handling slurry?

To effectively handle slurry containing abrasives in pumps, it is essential that the outside supply pressure is maintained at a level sufficient to ensure proper operation and prevent issues such as cavitation. An outside supply pressure that is at least 10 psi over the pump pressure creates a necessary pressure differential, allowing the pump to operate effectively and reducing the risk of damage from the abrasive materials in the slurry.

By maintaining this higher outside supply pressure, the pump can more efficiently move the slurry while minimizing wear and tear on its internal components. This practice is critical in applications where abrasives are present, as inadequate pressure could lead to insufficient flow or even pump failure due to complications like cavitation or blocking caused by the slurry’s properties.

Lower pressure levels, such as being equal to or just above the pump pressure, do not provide the necessary cushioning effect or flow assurance needed to deal with the challenges presented by abrasive slurries effectively. Therefore, ensuring that the outside supply pressure is sufficiently higher than the pump pressure is a vital strategy to promote longevity and reliability in pumps handling such materials.