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