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3P Pera Prinz twin screw pumps from Michael Smith Engineers are suitable for high-capacity fluids transfer applications that require a self-priming pump that can provide smooth, pulseless flows up to 1700m³/hour and at pressures up to 55 Bar.

The positive displacement pumps feature one or two pairs of screws (depending on the model) that are driven by external gearing so the screws never come into contact with each other. This ensures smooth, accurate flows and suitability for pumping shear sensitive fluids. 

3P Prinz twin screw pumps are very well suited to pumping fluids with low, medium and very high viscosities up to 35000cSt and at a wide range of pressures which makes them an ideal alternative to centrifugal pumps.

They are capable of operating at high angular speeds thanks to the screws’ low inertia and this facilitates a wide range of flow rates if the pumps are driven by a variable speed drive or inverter. They are designed to provide constant flow, regardless of pressure changes, particularly when viscous liquids are being pumped. 

Alternatively, they can be used on dosing and metering applications and will be particularly effective where pressure and fluid viscosity are constant during operation.

The pumps are also ideal for pumping applications in the chemical, pharmaceutical and food and beverage industries for transferring a wide range of challenging liquids such as bitumen, tar, lubricating oils, crude oil, grease, paraffin, wax and molasses. 

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Key product features and benefits

  • Available with either one, or two pairs of screws and in a choice of wetted materials.
  • Ideal alternative to centrifugal pumps.
  • High suction lift capability (typically 7 to 8.5 metres)
  • Very low NPSH values: less component wear and therefore a longer service life.
  • Components are machined with very accurate tolerances and with very high quality surface finishing, resulting in reduced clearances and so minimises the potential for leakages and slip.
  • Can be offered to an API 676 specification for the petrochemical, oil and gas industries.
  • For toxic or dangerous fluid applications the pumps can be supplied hermetically sealed, complete with magnetic drive which eliminates the potential for any leakage to the environment.

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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