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Edward Lowton
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Leak-free pumping
14 March 2014
Reliable, leak-free and low-maintenance pumping is essential (though often taken for granted) in many process applications, even when ‘challenging’ liquids like corrosives are being transferred. The Finish Thompson SP series of magnetic drive, self-priming centrifugal pumps provide fast, reliable and powerful performance with corrosion-resistant materials that withstand the rigours of demanding applications.
Available from Michael Smith Engineers, the SP series of pumps consists of four models that provide flow rates to 45m3/h and maximum differential to 37m.
The pumps combine deep lift capabilities (dry lift pumping to 7.6m) and fast priming (5.5m in 90 seconds) with the advantages of magnetic drive technology; no seals to replace and zero leakage. When SP pumps are supplied with a carbon bushing they can be run-dry for extended periods without damage.
The SP Series incorporates powerful neodymium batteries allowing them to pump fluids with high specific gravities up to 1.8, such as sulphuric acid, phosphoric acid and sodium and potassium hydroxide.
Reliable, low-maintenance and safe operation is also assured thanks to the SP Series magnetic drive technology.
The pumps are available in a choice of Polypropylene or PVDF which results in a tough and durable, corrosion resistant pump. Maximum operating temperatures are 82°C for the polypropylene version and 104°C for the PVDF version.
SP Series pumps can be mounted to most standard motors, while NPT or BSP threads, adjustable flanges or union connections make it easy to connect to most process systems resulting in reduced installation cost and time.
