The Crest Pemo pumps range of slurry pumps, has three different series of vertical pumps. The Jolly, MED & AUS series.
The Jolly, is robust and built for strength. All shafts are supported above the baseplate by two or three bearings so that the lower part is suspended and works without other bearings or supports. All submersed parts, besides the internal parts of the casings and impeller, are rubber lined or Hardalloy.
The MEC range are similar to the Jolly range. However, they are not mounted on cantilever brackets, since they have at their top a strong metallic structure with one lifting eyebolt, through which a metallic rope, chain or any other suspension device keeps them in a vertical position inside tanks or wells.
They only have one flexible coaxial joint between the electric motor and the shaft, and they are manufactured with three standard heights of suction; 1m, 1.5m & 2m.
The AUS series, is similar in design to the Jolly range. However, the main feature is the run dry capability of the special impeller and casing assembly making these pumps suitable for intermittent flow. The AUS can run dry without damage and has the ability to reprime itself when the liquid level returns to normal.
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