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  • Pump Industry Awards nominees Pump Industry Awards nominees
    Here are the nominees for the 2012 Pump Industry Awards.
    Members' Content
  • Frothing fix for problem printer
    Frothing and breakdowns were regular occurrences for printer Portishead Press as their air-operated diaphragm pump and its seals could not cope with the caustic coating solution used by the printer. The company needed a pump that could move the coating fluid quickly, without introducing air, so they looked at a Watson-Marlow close coupled peristaltic pump to provide the answer.
    Members' Content
  • Efficient solution for a duel de-icing product Efficient solution for a duel de-icing product
    A manufacturer of anti-icing products needed to improve efficiency. The delicate structure of these products required a very gentle pumping action with minimal sheer, while agitation and turbulence had to be kept to a minimum. The installation of progressive cavity pumps reduced maintenance and made production processes more efficient.
  • Overcoming transfer and space constraints Overcoming transfer and space constraints
    A Danish company was having trouble transferring water-based ink onto print rollers. A gentler solution was needed which would ensure the ink was bubble-free. The installation of five peristaltic pumps proved successful in overcoming space constraints and reducing the risk of downtime associated with cross contamination and spillage.
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  • Frothing fix for problem printer
    Frothing and breakdowns were regular occurrences for printer Portishead Press as their air-operated diaphragm pump and its seals could not cope with the caustic coating solution used by the printer. The company needed a pump that could move the coating fluid quickly, without introducing air, so they looked at a Watson-Marlow close coupled peristaltic pump to provide the answer.
  • Sanitary Drum Unloading Solutions
    Installing a Drum Unloading System can help to prevent hazardous processes effects due to potential employee injury and food safety. It also will save time and money thanks to the recent advancements to the Drum Unloading System by Graco.
  • High energy pumps: a major safety issue
    Catastrophic failure is a possible outcome when inlet pipework is over-pressurized or when the rotor of a high-energy pump seizes. Both can result from the low-flow protection failing to act promptly. Dr Edward Grist shows that pipework layout, pump design and leak-off system design greatly influence the risk of failure.
  • Engineers’ changing perception of ‘pots’
    Potentiometers have been around for a long time and are still, by far, the most commonly used position sensor in pumping systems. So why does every design engineer seem to be looking for a non-contact alternative? Mark Howard from Zettlex Ltd examines this phenomenon and explains the pros and cons of potentiometers.
  • Axial flow impeller shapes: part 1
    The increasing importance of low head applications necessitates a study of the different axial flow pump impellers used for both pump and turbine operations. In this first of two articles, Punit Singh and Franz Nestmann of Karlsruhe Institute of Technology survey the available impeller shapes and present a theoretical model that reveals the behaviour of the impellers’ internal hydraulic variables.
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