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Posted: Thursday 11th August 2016

The benefits of using sealless, mag-drive (magnetically driven) pumps in extreme fluids handling applications are well documented. Quite simply, where fluids handling applications involve hazardous, hard-to-handle chemicals, mag-drive pumps are designed to provide reliable, leak-free operation, with no environmental emissions, no double mechanical seal costs and no need for seal-support systems. The Finish ThompsonULTRAChem (UC) Series of ETFE lined centrifugal pumps is a good example of durable and exceptionally well-engineered range of leak-free pumps with new options added which further extends the overall performance envelope of the range.

Available from MICHAEL SMITH ENGINEERS, the 3 new models are; The UC1518L, a low flow version of the standard UC1518 which is ideal for applications requiring a higher heads (up to 69 metres) at lower flows (1.13 to 8.6 m3/h), the UC2110 is a 4-pole configuration (with a 2-pole version also under development) and the UC6410 an exceptionally powerful option designed for flows up to 329 m3/hr.

Finish Thompson UC pumps combine a tough ductile iron casing with a Tefzel (ETFE) lining to ensure outstanding corrosion resistance and feature powerful neodymium magnets which drive the impeller through a carbon-filled PTFE lined barrier for dependable, leak-free operation.

In addition, a range of features optimise the reliability, efficiency and performance of these pumps to ensure minimal wear on components, lower running costs and extended periods between routine servicing. For example, a Dri-Coat silicon carbide bearing / shaft option prevents catastrophic failure in the event of short-term dry-running. Also, a two-piece dynamically balanced outer drive magnet with multiple pole options matches drive to motor power for greater efficiency.

This outer drive magnet incorporates Finish Thompson's Easy-set mounting system so that the drive magnet can be fitted to the motor shaft without having to measure the magnet set-height and ensures a perfectly set magnet thereby removing a potential cause of misalignment and so improving reliability.

Other features include a Kevlar reinforced barrier which reduces the air gap between driven and driving magnet and so maximises magnetic power to transmission. Using Kevlar for the barrier reinforcement enables maximum working pressure to be increased to 300 psi (20.7 bar).

FTI ULTRAChem pumps are an ideal choice for extreme pumping applications which typically occur in chemical manufacturing, blending and distribution, water treatment, plating and surface treatment applications, paper mills, fume scrubbers and other similar challenging situations which demand robust and reliable leak-free pumping.

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August 2021

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