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ARBO mechanically sealed centrifugal pumps catalogue - .PDF file.

Michael Smith Engineers has introduced a range of ARBO thermoplastic mechanically sealed centrifugal pumps. Applications include pumping acids in anodising plants, circulating aggressive chemicals in pickling lines, tanker unloading of ferric salts in the water industry, pumping chemicals and untreated effluent in electronics manufacturing, demineralised water circulation in food industry applications, coolant circulation in power plants, seawater circulation in aquaria and any application where metallic pumps will either suffer from corrosion or can cause contamination.

The pumps are available in a choice of polypropylene, PVDF and PTFE and so resist the effects of aggressive chemicals that can cause corrosion problems for metallic pumps.

By manufacturing all wetted parts out of solid block without the need for injection moulding, the potential for stress cracking has been eliminated. In addition, the combination of tough, non-metallic materials and stress-relieving production methods provides good chemical and temperature resistance to ensure safe and reliable pumping, even in the most challenging applications.

Click on the link above to download the ARBO mechanically sealed centrifugal pumps catalogue.

Key features and benefits

  • The pumps can handle solid particles up to 3mm, ensuring extended pump operation in the event of process upset.
  • The compact yet robust pumps handle flows up to 500m/hr and are available in close- or long-coupled designs.
  • In close-coupled configuration, ARBO pumps can be specified in either horizontal or vertical mounting options. This design is a more compact choice as the pump shaft is fixed directly to the motor shaft. A separate bearing housing and flexible coupling are not required, meaning a significant reduction in wearing parts and eliminating the potential for motor alignment issues.
  • The close-coupled vertical configuration is suitable for in-line positioning and offers the advantage of the suction connection being able to be rotated 90° to the discharge connection to ensure maximum flexibility during system installation. With this option, maintenance is simplified as the pipework remains connected and only the housing bolts need to be removed, allowing the pump to be lifted using standard lifting lugs.
  • The long-coupled horizontal version incorporates separate frame-mounted bearing support for the motor shaft, providing high stability, and is designed so that the shaft, complete with bearings, can be removed as a cartridge to simplify the process of changing the bearing.
  • The complete long-coupled pump unit is assembled on a rigid glass-fibre-reinforced polyester baseplate for chemical resistance, while the back-pull-out design makes it possible to remove the rotating section without the need to dismantle the piping and so greatly reduces maintenance time.
  • Both the long-coupled and close-coupled designs are dimensioned to ISO 2558/DIN-EN 22585 and so can be easily interchanged with existing metallic pumps on site.

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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