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Spectrum Yarns is utilising a Hydra-Cell hydraulically flexed diaphragm pump supplied by Michael Smith Engineers to increase local humidity for the prevention of static electricity build-up in a wool-spinning process.

Humidifiers are required in many industrial applications where dry air is detrimental to a process. In the textile industry, static build-up, low regain, yarn breakage, dust, fly or lint are all recognised as signs that the air moisture is too low. Spectrum Yarns has been spinning wool for almost 40 years and throughout this time static build-up has been a persistent problem during its process.

Demineralised water is sprayed into the spinning wool to provide atmospheric moisture. The resulting increase in humidity (up to 80 per cent) helps to prevent static build-up in the wool-spinning process.

Spectrum Yarns had used piston pumps for this application in the past but they were not successful in the long term due to the non-lubricating demineralised water attacking the piston pumping element, resulting in increasing wear and reduced working life. The piston pumps were replaced with two Hydra-Cell close-coupled triplex diaphragm pumps with AC-inverter-rated motors, which were installed to pump the demineralised water.

Key benefits of product application

  • After 12 months of continuous use pumping demineralised water, the pumps have not faltered at all.
  • Features of the Hydra-Cell pumps that have helped in this particular application include: a corrosion-resistant stainless steel pump head, so there is no contamination of the demineralised water through leaching; the triplex diaphragm design, which ensures a virtually pulse-less flow for smooth, consistent spraying; and hermetically sealed diaphragms for zero leakage of the demineralised water, so there are no spillages or wastage.
  • The diaphragms are hydraulically balanced, which reduces the levels of diaphragm stress and therefore reduces downtime.
  • The inverter-controlled AC motor enables easy adjustment of speed so the flow rate can be adjusted automatically.
  • The pump’s compact, close-coupled design has meant more plant workspace for Spectrum Yarns.

Michael Smith Engineers

Michael Smith Engineers Ltd,  the UK’s leading pump specialist for difficult liquid handling applications since 1971,  provide representation in the UK for specialist pump manufacturers, with particular emphasis on sealless leak free pump technology.  Our product range includes magnetically driven gear pumps, magnetically driven centrifugal pumps (including metal, plastic and lined centrifugals),  canned motor centrifugal pumps, peristaltic pumps, tubular diaphragm pumps, metering pumps, valveless piston pumps, turbine  pumps,  high pressure diaphragm pumps, vane pumps and barrel emptying pumps. We can supply pumps in a wide choice of wetted materials for liquids between 0.2 cP and 500,000 cP, temperatures between -50 oC and +400 oC,  capacities from nanolitres per hour to m3  per minute and can offer pumps for  high system pressures up to 350 Bar and high discharge pressures up to 500 Bar.  Corrosion resistant materials are available for many of our ranges include metallic options of stainless steel and high nickel alloys or plastic options of PVC,  polypropylene, PVDF and ETFE. The main markets we service with our ranges of pumps are the chemical, petrochemical, pharmaceutical and process sector with our larger pumps  as well as laboratories, research and development institutions and OEMs with our smaller pumps.  

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