PUMPS & FANS
Why peristaltic hose pumps are ideal for precious metal mining Precious metal mines are replacing centrifugal pumps with peristaltic hose pumps as hose pumps handle 80 percent solids content. Bredel Peristaltic Hose Pumps, available from Watson Marlow, are perfect for the mining industry.
OVERCOMING OBSTACLES
W
hen it comes to pumps in mining, there is a high degree of difficulty in handling abrasive paste or slurry with varying density, over long distances and without frequent breakdowns. This difficulty is compounded when chemicals are added. Traditionally, centrifugal pumps are widely used for thickener underflow applications, but pump impellers may last just a few weeks in these tough conditions. And, as the paste or slurry density increases towards the bottom of the underflow thickener, the pumps continue to run at the set speed, but flow rates decrease.
Bredel 80 for thickener underflow application
Bredel peristaltic hose pumps overcome these obstacles as pump output is far less impacted by fluid dynamics such as paste density, viscosity, suction conditions and discharge pressure. Nor are they affected by the abrasive or aggressive nature of paste and chemicals. Bredel pumps are virtually maintenance-free. The only wear part is the hose, which can be replaced in-situ in a matter of minutes, without any requirement for special tools.
HEAVY DUTY PUMPS
FOR ABRASIVE SLURRIES
Pumps with no seals or valves to wear, clog or leak, up to 100 cubic metre/hr to 16 bar Minimal maintenance - just change the hose New Endurance hose - doubles hose life Suction lift capability to 9.5 metres, self-priming and dry running Ideal for abrasive products, high viscosities and shear sensitive fluids
wmftg.com/za-en +27 11 796 2960
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INDUSTRIAL BUYER JULY/AUGUST 2019
