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Twin-screw pump for conveying and cleaning

| By Mary Page Bailey and Gerald Ondrey

This company launched a new generation of twin-screw pumps for food, beverage and pharmaceutical applications that combine both the conveying and cleaning functions in one pump. The revamped Hilge Novatwin+ twin-screw pump (photo) is more powerful than its predecessor series, and thanks to its higher flowrate, covers a wider range of applications with a smaller pump. Users not only reduce their material footprint by 23% with the new design, but also reduce energy demand by 10% due to the improved efficiency. With variable speeds of up to 3,000 rpm, the self-priming positive-displacement pump conveys lumpy, shear-sensitive and abrasive media particularly gently. It can handle liquids with a wide range of viscosities. Since the Novatwin+ pumps operate with nearly no pulsation, they are also suitable for large and sensitive particles. Twin-screw pumps can also serve as clean-in-place (CIP) pumps, because they can be operated at very high speeds. The system pressure of 30 bars also allows for use in high-pressure applications. — GEA Group, Düsseldorf, Germany