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Large solids pumps

Efficiently handle slurries containing large and abrasive solids

FLS KREBS® gravelMAX™ and UMD™ pumps feature large internal clearances that allow handling of slurries containing large and abrasive solids without grinding. The result is higher throughput, lower energy consumption, increased wear life, longer uptime – and ultimately lower costs per tonne pumped.

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Key benefits of our large solids handling pumps

  • High-efficiency pumping

    Our proprietary adjustable wear ring technology enables quick, easy, and safe control of suction-side clearance while the pump is operating. By closing the gap and preventing recirculation within your pump, while also avoiding the grinding of solids between the impeller and suction side, our wear ring technology ensures design performance is maintained throughout the pump’s life—without the need to increase pump speed. This results in lower power consumption, extended wear life, and a reduced cost per tonne pumped.

  • Extend wear life of wet-end parts

    Large internal clearances and regular adjustment of the wear ring eliminate in-pump grinding, even when handling large solids, and helps maintain hydraulic performance close to the BEP over the life of the pump. This reduces wet-end part wear, extending time between maintenance while lowering maintenance costs.

  • Increased solids passing size

    Large internal clearances in our UMD and gravelMAX pumps ensure easy passing of large solids through our pumps and downstream to where they need to be.

Our large solids handling pumps

gravelMAX

When pumping large solids, the gravelMAX pump is your answer. A large impeller-suction side clearance prevents in-pump grinding when entering the pump, while a wide-diameter impeller and increased cutwater clearance allow solids to exit the pump.

  • Pump large and abrasive solids.
  • Reduces cost to tonne pumped.
  • Up to 100% longer wear life than conventional slurry pumps. 

Our large solids handling pumps

Quickly and easily change out the v-belts in minutes without realigning the pulleys. 

Cut wear parts replacement time by 50% or more while also increasing safety.   

Monitor and optimise pump operations with real-time data and instant alerts.   

Maintenance & service of our large solids handling pumps

Our network of service and spare parts centres ensures timely access to spare/wear parts and fast offsite rebuilds. Expert site service engineers monitor pump performance, recommending upgrades or updates to operating practices to maintain BEP as process conditions develop over time. We also offer operation and maintenance training, including adjusting the wear ring.

Learn more about FLS service centres

Downloads for large solids pumps

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Frequently asked questions

FAQs for large solids pumps

Solids handling refers to the capability of a pump to efficiently transport fluids containing particles without adverse impact on pump performance. 

Metal liners, such as high-chrome alloys, generally perform better against coarser slurries. However, pump liner selection should always be based on the specific slurry characteristics, operating conditions and costs.