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Magnetically driven, self-priming centrifugal pumps are well established as the preferred type of pump for handling aggressive, corrosive and other hazardous liquids thanks to their proven ability for safe, reliable, leak-free and low maintenance operation. A good example of this type of pump is the Finish Thompson SP series of magnetic drive, self-priming centrifugal pumps, available from MICHAEL SMITH ENGINEERS (MSE).

For over 40 years, magnetically driven pumps like the FTI SP series supplied by MSE have been successfully pumping difficult liquids in challenging process applications. This is largely due to the key benefit of magnetic drive technology which means no seals to replace and zero leakage, combined with their powerful performance and corrosion-resistant materials for harsh environments.

The range consists of four models providing maximum flow rates up to 45 m3/hr and maximum differential heads to 37 metres. SP self-priming pumps also offer deep lift capabilities (dry lift pumping up to 7.6 metres) and fast priming (5.5 metres in 90 seconds).  Another important benefit with SP pumps is that when specified with a carbon bushing they can be run-dry for extended periods without damage, meaning no catastrophic pump failure in the event of a process upset.

In addition to their superior lift capabilities, the SP Series incorporate powerful neodymium magnets allowing them to pump fluids with high specific gravities up to 1.8, such as sulphuric acid, phosphoric acid and sodium and potassium hydroxide.

FTI SP Series 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.

They 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.

Typical applications include sump emptying, transferring from underground storage tanks and tanker trucks, pumping in systems that are liable to have trapped or entrained air or in process systems where run-dry protection is needed.

More details at:

https://www.michael-smith-engineers.co.uk/products/finish-thompson/rotary-centrifugal-pumps/self-priming-centrifugal-sp-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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