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When fluids handling applications require safe and reliable pumping of thin, low viscosity liquids, such as liquefied gases or refrigerants the new Dickow WPM Seriesare an ideal choice. Available from pump specialists MICHAEL SMITH ENGINEERS these new options of self-priming, horizontal, side-channel pumps are suitable for handling clean liquids without solids in chemical and petrochemical industry applications.

The magnet drive single or multi-stage side channel design of the WPM Series pump enables safe, leak-free pumping of thin liquids at 4 pole speeds of high differential heads up to 150 metres covering flow rates from around 2 lit/min up to 40 lit/min. Compared to standard centrifugal pumps they offer more economical pumping when the combination of low capacities and high heads is required.

They are available in 316 stainless steel or Hastelloy-C materials and in two designs. One for system pressures to 16 bar the other for system pressures up to 110 bar, an ideal option for pumping liquefied gases or refrigerants. Maximum operating temperature for the standard pump design is 150ºC.

They are also able to prime empty suction lines after initial filling with liquid to be pumped or any other liquid compatible with the pumped liquid. The magnet coupling with the static containment shell forms a closed hermetically sealed leak-free system which eliminates the need for double mechanical seals, along with external fluid reservoirs and associated control equipment.

The single elements of the multipolar magnet coupling are manufactured from Neodymium-Iron-Boron with unlimited lifetime operation, while the magnets in the driven rotor are completely encapsulated and not in contact with the pumped liquid. Power is transmitted to the hermetically sealed liquid end by a bank of external magnets with the inner and outer magnet rings securely locked together by the magnetic forces and work as a synchronous coupling.

To achieve the self-priming capability, high efficiency and rated differential pressure, there are tight clearances between the rotating impeller and the stationary disks. During priming, a stable fluid film between the impellers and the disks centres the impeller in the chamber.

When coupled with suitable flameproof certified motors, the Dickow WPM side channel pumps can also be specified for pumping flammable liquids and be safely installed in hazardous areas.

More at:

Michael Smith Engineers Ltd, Unit E, Scotswood Park, Forsyth Road, Sheerwater, Woking GU21 5SU Tel: FREEPHONE:  0800 316 7891


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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