PROGRESSIVE CAVITY PUMPS

The basis of any Progressive Cavity Single Screw Pump is a power section which usually consists of a metal rotor (n-start external helix) and a rubber stator (n+1-start internal helix). Rotation of the rotor inside the stator creates sealed cavities that progressively move from suction to discharge side of the pump producing differential pressure.

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The SOLTEC ® Nomomoskovsky Mechanical Plant, had the task to pump whole tomatoes and further transport them to the production line which is remote from the receiving location. Also it was necessary to exclude settling of a product in the working chamber of the pump. The solution was to design a pump with a screw-feeder and a chopper in the inlet pump assembly that implements this task fully.