Watson Marlow Bredel Pumps

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Peristaltic Pumps

Watson-Marlow Bredel has, through selective acquisition, innovative product development and geographical expansion, grown rapidly to lead the world market for peristaltic pumps, tube and hose pumps.

This is an expanding segment of the positive displacement pump market, and the peristaltic principle enables sensitive, abrasive or corrosive fluids to be pumped safely, accurately and without contamination anywhere from biotechnology to chemical and food processing to waste treatment.

Primary / Thickened Sludge Feeding

The simple glandless, "straight through" construction without valves, seals, vanes, rotors or impellers, has clear advantages in handling viscous sludges liable to contain grit, rag type or other solids which cause blockages, while the ability to impart minimal shear, combined with the high levels of volumetric accuracy when handling additives such as polyelectrolyte, is important in terms of both efficient flocculation and additive consumption.

Reduced operating costs can be achieved by the installation of Watson-Marlow Bredel pumps in the feeding of primary or thickened sludge to digesters or filter presses, and in primary tank auto-desludging.

To complete primary auto-desludging, following digester treatment, the sludge goes to secondary storage tanks, where polyelectrolytes are dosed by low-pressure peristaltic pumps prior to dewatering.

Peristaltic Pumps

Peristaltic pumps have no valves, seals or glands, and the fluid contacts only the bore of the hose or tube. Simple to install, easy to use and quick to maintain, provide a low whole live cost, they are the hot new technology, and the world's fastest-growing pump type.

Supply of quality potable water within current permit levels is paramount, and efficient plant operation is essential in meeting these critical standards. Metering applications, typically with sodium hypochlorite, lime or ferric chloride, often place arduous demands on pumps.

These chemicals can cause vapour locking, abrasive wear and pump clogging, leading to poor performance and premature failure of traditional metering pumps. Watson-Marlow Bredel peristaltic pumps are a proven solution and exceed performance expectations.

  • Self-priming to 30ft and dry-running
  • 875,000:1 turndown - same pump!
  • Accuracy to ±0.5%
  • Lowest Life Cycle Cost (LCC)
  • No internal check valves
  • Eight tube sizes
  • Sealless design
  • Microlitres to 33L/min
  • Reversible
  • 3 second pump rebuild
  • Will not vapour lock

Applications include pH control, disinfection, primary and secondary disinfection, accurate sampling, metering and dosing of difficult fluids such as sodium hypochlorite, ferric chloride, sodium bisulphite, alum, fluoride, carbon and lime slurries, polymers, aqueous ammonia, potassium permanganate, caustic, aluminium sulphate, flocculants and lime slurry.

Brochures:

Overview brochure
Water and Waste treatment pumps
Hose pumps

Contact:

Watson-Marlow Bredel Pumps
Falmouth
Cornwall
UK
TR11 4RU

Tel No: +44 (0) 1326 370370
Fax No: +44 (0) 1326 376009

Website: www.watson-marlow.co.uk

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