Centrifugal Pumps

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Meeting the demands of challenging applications

Hydraulics & Pneumatics

Centrifugal Pumps
Centrifugal Pumps

MICHAEL SMITH ENGINEERS presents a range of magnetically coupled centrifugal, vane, turbine and side-channel pump options which are meeting the demands of challenging applications.

Improving the energy efficiency

M Pumps has focused attention on improving the energy efficiency of their centrifugal pumps which has led to the development of an innovative rear containment shell and now fitted as standard on their CN MAG-M Series of centrifugal process pumps.

Mode of operation

This unique patented hybrid containment shell combines the reliability and chemical resistance of a standard inner metallic shell with the strength of a carbon fibre outer shell and can be selected for applications with liquids at temperatures up to 200ºC and system pressures up to 50 Bar. With a choice of either titanium or hastelloy C inner shell, the M Pump Hybrid Containment Shell has played a significant role in enhancing the operational efficiency and competitiveness of these pumps compared to other standard mag-drive pumps. The operating principle of mag-drive pumps involves a rotating magnetic field which is separated by a stationary metallic barrier which cuts the magnetic field and generates eddy currents that in turn generate heat. The amount of heat generated depends on the material of the barrier. Hastelloy C and titanium generate less eddy current than stainless steel while non-metallic materials generate minimal losses. Also, the strength of a magnetic field reduces in proportion to the square of the distance from it, so the closer together the magnets, the more efficient the coupling. The M Pumps hybrid solution minimises magnetic losses by featuring a very thin barrier in either hastelloy or titanium, with a thin carbon outer shell thereby reducing the amount of heat from eddy currents and the distance between the rotating magnets.

Advantages

In addition to the benefits of improved energy-efficiency and a more compact, space-saving solution, CN MAG-M pumps provide the important advantages of mag-drive pumps. For example, a hermitically sealed, leak-free design with no rotating seals to fail meaning reduced downtime, no cross-contamination of the pumped liquid, no wastage, no environmental hazards and improved operator safety.

Design and models

Thanks to their leak-free design M Pumps are particularly suited to handling toxic, flammable or other dangerous liquids. Models are available for handling capacities up to 4000 m3/hr, differential heads up to 220 metres (single stage) and up to 700 metres (multi-stage) with system pressures up to 150 Bar. 

Posted on June 19, 2017 - (963 views)
Michael Smith Engineers Ltd
Oaks Rd
GU21 6PH Woking - United Kingdom
+44-1483-771871
+44-1483-723110
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