Progressing cavity pumps belong to the group of rotating positive displacement pumps. They are self-priming, valve-less, and due to their high process liability and suction capacity they are often used for the continuous, gentle conveyance and precise dosing – in proportion to speed – of difficult media.

Benefits of a progressing cavity pump

 –  Flow in proportion to speed
 –  precise dosing
 –  continuous, gentle and low-pulsation flow
 –  large free ball passage (up to 150 mm)
 –  high suction capacity
 –  low life-cycle costs due to long lifetime and meantime between failure
 –  reverse rotation and flow

The applications of a progressing cavity pump

 –  fluids with or without solid contents (Max. solid size up to 150 mm)
 –  low to high viscosity (1mPas to 3 millions mPas)
 –  Thixitropic and dilatant
 –  shear sensitive
 –  abrasive
 –  non-lubricating and lubricating
 –  aggresive (pH 0 -14)
 –  adhesive
 –  toxic