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Highly automated analysis devices have become commonplace in many scientific and biotech applications, for example being used as the essential basis for extensive test capacities for the Corona virus. As a result of the development of these parallel and faster processes, automation has significantly increased the number of tests, saving manpower whilst ensuring process reliability.

Micro dosing pumps are one of the essential components in these automated systems a good example of which are the HNP Micro Annular Gear Pumps available through UK pump specialists MICHAEL SMITH ENGINEERS. The MZR Mikrosysteme low pressure series of pumps have been successfully used for sample preparation for SARS-CoV-2 where a few microliters (minimum dose of 0.25 µl) of a solution of chemicals and enzymes are dosed with exceptional precision and reliability.

In some cases these fully automated analysis devices can contain up to 16 dosing pumps handling up to 4000 samples in 24 hours and this is where the very small footprint of the HNP pumps are really appreciated – the smallest pump / motor unit is under 8cm long and 2cm diameter. Other HNPM Mikrosysteme micro annular gear pumps such as their hermetically inert pumps are also used in the production of vaccines and therefore from diagnostics and research through to future vaccine production, HNPM pumps are playing a vital role in the fight against COVID-19.

HNP Mikrosysteme MZR low pressure pumps are ideal for analytical instrumentation applications providing precise dosing of low viscosity and non-lubricating liquids at low pressures. They are designed to handle liquids with capacities from 0.0015 to 272 ml/min at differential pressures to 5 bar and viscosities from 0.3 to 1000 cP.

When used with DC mini-motors they have a small footprint and low power consumption and can be easily be integrated into OEM applications.

Their compact, close-coupled design means small space requirement, helping to reduce possible alignment issues and increasing operational life while the positive displacement performance ensures accurate, repeatable output helping to improve product quality and reducing wastage.

More details at: https://www.michael-smith-engineers.co.uk/products/hnpm/low-pressure-series

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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