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A cost-saving alternative to inverter and pole changing motors

Germany-based Fristam Pumpen Schaumburg has established a comprehensive portfolio of single-flow twin screw pumps for tank storage and chemical applications under the brand VPS-Pumps. The strong growth of this comparatively new concept is based on the advantages of simple maintenance, low life-cycle costs and high flexibility in terms of a wide speed range.

René Linck, product manager for Fristam Pumpen Schaumburg, says: ‘The ability to empty the pipes and tanks (residual discharge) and the constant flow rates with different media and viscosities, make the single-flow twin screw pump a superior technical solution for challenging conveyance tasks.’

In order to achieve all these strengths, the VPS pumps should be driven on a frequency converter, in order to achieve a speed range of about 1:...

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