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instance, if the diaphragm or hose on these pumps breaks, the process fl uid can be introduced directly into the atmosphere, resulting in dangerous or expensive leaks.

Benefi ts of well-designed pumping technology To address these problems plaguing the mining industry, companies can use pumps with slower operating speeds and more wear-resistant construction materials. For example, Netzsch pumps operate with a slower speed (typically around 100-700rpm), so the particulates in the fl uid don’t hit or grind against the inside of the pump with as much force as they fl ow through. T e rotors of the pumps turn in a soft elastomer stator. T is creates a sort of pocket cavity for the fl uid to pass through, keeping most of the solids in suspension instead of wearing the pump. When solids do come between the rotor and stator of the pump, the soft elastomer allows the metal rotor to compress the solid particles into the elastomer instead of grinding into them. T en as the rotor turns, the solids are released, re-enter suspension and fl ow through the

pump. In addition, Netzsch pumps have low pulsation, low vibration and a set volume in their cavities for high performance in metering and dosing. Installing pumps such as these

greatly increases effi ciency and safety.

Pumps that incur less wear last longer and require less replacement, allowing companies to save money on spare parts and replacement costs. T is reliability also reduces the chances of the catastrophic mechanical failure that can put employees at risk. Pumps with slower operating speeds can be operated with smaller motors. Centrifugal set-ups often require a booster pump and a second pump to achieve some fl ow conditions, such as a suction lift or when both a high fl ow and high pressure are required. In comparison, this can be accomplished using just one progressive cavity pump to pull a suction lift and generate the required pressure or fl ow all in one pump. T is allows mining companies to cut down on power consumption and the associated cost. Durable and reliable joints and parts combined with the correct materials and construction get

Left: An example of a truck-mounted dispensing application


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