Watson-Marlow Fluid Technology Group (WMFTG) has released a new peristaltic design of Bredel hose pumps that, the company says, can handle viscous slurries, grit-filled sludge corrosive acids and other challenging materials.

These qualities of the Bredel heavy-duty hose pumps make them ideal for the most demanding mining applications, according to the company.

“Unlike diaphragm, rotary lobe, and PC pumps, the peristaltic design of Bredel hose pumps contains no moving parts that come into contact with the product, and no seals, ball-checks, diaphragms, glands, immersed rotors, stators or pistons to leak, clog, corrode or replace,” it said. “Bredel hose pumps also obviate the need for ancillary equipment such as dry run protection, seal water flush systems and in-line check valves. A simple hose change takes only minutes and can be performed in-situ without special tools or skilled personnel.”

The low maintenance peristaltic design offers a low total cost of ownership, WMFTG claims. As the fluid is safely contained within the hose or tube, operation and maintenance personnel and the environment are protected from unwanted spillages or exposure to chemicals.

Bredel hose pumps are dry-running and self-priming, and allow no slippage, for true positive displacement to provide accurate and repeatable metering, the company says. Only Bredel industrial hose pumps provide this level of engineering expertise for their drives, according to WMFTG.

The pumped fluid is completely contained in a long-life hose, protecting operation and maintenance personnel and the environment from unwanted spillages or exposure to chemicals. Flow is entirely independent of suction and discharge conditions.

Every Bredel hose is precision machined to ensure flow stability and pump performance in tough fluid handling applications, the company added.

These industrial pumps achieve flow rates up to 475 gallons per minute (1,798 litres/min), transferring up to 80% solids in suspension.