Watson-Marlow Pumps Group


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Peristaltic Hose Pumps for Mining and Mineral Processing

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TR11 4RU,
United Kingdom
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Watson-Marlow are world leaders in peristaltic pump manufacture for mining, chemical and other industries. Peristaltic pumps handle abrasive, viscous and aggressive liquids. Lime slurry for pH control, acids, corrosive cyanide for gold recovery, grout, thickener underflow – Watson-Marlow pumps handle them all, at up to 80m3/h and 16bar (230psi). Shear-sensitive polymers for flocculation are pumped without degradation.

Peristaltic pumps have no valves, seals or glands to leak, clog or replace. The pumped fluid does not touch the pump itself – it is in contact only with a high-pressure, flexible hose. Maintenance is confined to a periodic hose change, which takes minutes. Peristaltic pumps can run dry, reverse their direction of flow, and are self-priming.

Peristaltic pumps

Mining industries handle corrosive, toxic media with high specific gravities, which cause problems for other pump types. Valves clog, diaphragms perish, rotors corrode.

Peristaltic pumps – hose pumps, as they are called in larger sizes – operate on the positive-displacement principle of our digestive system. Within the pump housing, rollers compress the hose against a semi-circular track – like flattening a garden hose between finger and thumb. The pressure point moves along the hose, pushing the tube’s contents before it. Behind the pressure point, the hose resumes its shape, sucking in more fluid. Solids – even bulky ones – are carried through the pump harmlessly.

Watson-Marlow pumps use non-reinforced, high accuracy tubes for flow rates up to 80m³/hour and pressures up to 16bar (230psi).
Bredel peristaltic, high-pressure hose pumps have a remarkable precision-machined hose, available in abrasion and corrosion resistant materials.
The Bredel hose pump has a direct-coupled design that combines the best features of conventional bareshaft and close-coupled designs.

World leaders in high-pressure hose pumping

The key to the process is the hose. For high-pressure applications, our hose has a composite construction formulated to withstand abrasion and chemical attack. The inner core is manufactured from soft material, cushioning any solids caught in the compression phase of peristaltic motion, and leaving shear-sensitive flocculants undamaged. The outer covering is hard rubber, reinforced with braided nylon.

The pumps are available with drives suitable for high-pressure washdown, TEFC and explosive environments.

Bredel hose pump – the future of high-pressure hose pumping

The force needed to compress the hose in a large hose pump, up to 100mm in diameter, is substantial. Bredel models – state-of-the-art leaders among high-pressure peristaltic pumps – feature a patented, direct-coupled design: a large, twin-bearing hub supports the rotor – placing no stress on gearbox bearings. No baseplate is needed, and the footprint is minimal.

Widely used for handling abrasive slurries, pumping silica suspensions up to 70% solid by weight with no settling out, and transferring tailings including particles typically 5mm in diameter, Bredel hose pumps help produce gold, platinum, vanadium, nickel, coal, copper, kaolin, diamond, trona, uranium … the list goes on.

Watson-Marlow pumping solutions

Copper tailings – slurry is very abrasive. Centrifugal pumps with soft packing shaft seals had to be water-flushed to limit wear on the shaft sleeve. Fine until winter froze the water. Solution: a Bredel 100, with no seals to wear out. Tailings could be continuously pumped at higher concentrations, doubling plant efficiency. Downtime: a few minutes every 2,000 hours to change the hose.

Natural kaolin – abrasive sludge with high specific gravity. Solution: a Bredel 40, 80 or 100, pumping slowly, at high volumes, without hardening the sludge.

Acid slurry platinum waste – pumped with low pulsation from settling tanks to cyclone for separation. Solution: a Watson-Marlow 700 pump with acid-resistant Marprene tubing and a four-roller rotor for minimal pulsation.

Ammonia metavanadate slurry – delivery lines blocked when centrifugal or eccentric screw pumps were used. Solution: a Bredel 40 with no valves or obstructions to clog.

See also:

Water Technology – Watson-Marlow – Peristaltic Pumps

White Papers

  • Watson-Marlow Bredel SPX hose pumps

    Watson-Marlow Bredel SPX hose pumps easily pump abrasive fluids like tailings, metal slurries and thickener underflow. Due to the high solids content of these slurries other types of pumps fail because the product comes in contact with the rotors, stators, impellersand seals of the pump. In a Watson-Marlow Bredel hose pump, the hose never fails due to abrasion!

Press Releases

  • New Pump Hoses for Food Applications with 80% Greater Life

    Watson-Marlow Pumps Group is introducing a new food grade hose for use with Bredel pumps. FDA and EC compliant, the new F-NBR hoses offer better wear resistance and longer life for improved production efficiency and process/product safety.

  • Watson-Marlow Launches Revolutionary ‘Qdos’ Range for Chemical Metering Applications

    In what’s described as a “no-valve metering revolution” Watson-Marlow Pumps Group launches its revolutionary Qdos 30 pump range. Developed in response to extensive industrial customer feedback for improved chemical metering, the Qdos 30 eliminates ancillary equipment, enhances productivity, and reduces chemical waste through more accurate, linear, and repeatable metering than typical solenoid or stepper driven diaphragm metering pumps.

  • Qdos Metering Pumps Solve Turbidity Testing Dilemma for Welsh Water

    Until recently, turbidity testing at the Pontsticill Water Treatment Works in the Brecon Beacons National Park relied on the use of bellows pump technology. However, the inherent introduction of air in the samples was undesirable and led to false readings. Now though, relief has arrived in the shape Watson-Marlow's new Qdos 30 metering pumps, which not only provide excellent suction lift, but do so without air locks.

  • Qdos Metering Pumps Usurp Diaphragm Models In Potable Water Application

    The revolutionary new Qdos 30 metering pump from Watson-Marlow Pumps Group is proving a resounding success in Barrie, Canada. Located in southern Ontario on the western shore of Lake Simcoe, Barrie is a modestly sized city (135,000 residents) but one with a track record for quality when it comes to its potable water supply.

  • Watson-Marlow Peristaltic Technology Solves Prelok's Sticky Situation

    When Prelok encountered problems using both impeller and diaphragm pumps to circulate adhesive coating fluids at its Willenhall plant in the West Midlands, this specialist in the application of pre-applied locking and sealing processes for threaded components turned to 521 Series pumps from Watso

  • Watson-Marlow Pumps Group to Attend 2010 TOTAL Exhibition

    Leading pump company Watson-Marlow Pumps Group will showcase its enhanced range of positive displacement pump technologies at stand 5673 at the 2010 TOTAL Exhibition. Following the recent acquisitions of aseptic filling and capping systems specialist Flexicon and sinusoidal pump c

  • Watson-Marlow Acquires Maso Process-Pumpen from Sundyne Corporation

    Watson-Marlow, a world-leading positive displacement pump manufacturer, has acquired the German MASO / sine pump manufacturing business from MASO Process-Pumpen and Sundyne Corporation. The MASO / sine pump products will now be branded MasoSine. The purchase demonstrates the Watson-Marlo

  • We’re Ousting Diaphragm Pumps from Mexican Mines

    Minera Fresnillo, a subsidiary of Peñoles, located in north-west Mexico, was experiencing endless headaches with their diaphragm pumps. Minera is dosing aerophine, xanthate, sodium cyanide, and copper sulfate into flotation tanks. Unfortunately, the diaphragm pumps were in need of constant and co

  • Two Rivers Platinum Project

    Honeydew-based Watson-Marlow Bredel SA has won a R1.2 million order to supply 32 direct-coupled and peristaltic pumps to the Two Rivers Platinum Project in Mpumalanga. The contract boosts the company's order book for pumps to South African platinum mines to more that R16 million joint v

  • Watson-Marlow Bredel launches New IP66-rated Pump Range

    Watson-Marlow Bredel has launched three new IP66-rated pumps to satisfy the requirements of the toughest processing industries. The result of several years design work and customer research, the new 520 series of peristaltic pumps provides unrivalled levels of accuracy, reliability and control fo

  • Watson-Marlow Bredel Launches New 620 Series Pump

    Watson-Marlow's new 620 series pump offers exceptional levels of performance, accuracy and output for the biotech, pharmaceutical and chemical industries. It features a choice of drives, a choice of pumpheads, PIN process protection and minimal downtime. The new 620 series represents th

  • Pump Helps To Prevent Diseases In Africa

    A new-generation dosing pump is playing a key role in alleviating waterborne diseases in rural Africa. Watson-Marlow Bredel's SPX 10 dosing pump is at the heart of onsite diluted sodium hypochlor-ite plants being built by Pretoria-based Aquarius Chlorination to overcome sanitation prob

Watson-Marlow Bredel Products
Watson-Marlow Bredel S.A. (Pty) Ltd
PO Box 2742,
2040 Gauteng,
South Africa

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Watson-Marlow Pumps Group
TR11 4RU
United Kingdom

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Watson-Marlow Bredel Products
Watson-Marlow Bredel Pumps Inc
37 Upton Technology Park,
United States of America

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Watson-Marlow Bredel Products
Spirax-Sarco Engineering
107 Gui Qing Road,
Shanghai 200233,
Caohejing Hi Tech Park,

Watson-Marlow Bredel Products


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