Progressive Cavity Pumps


Principle: The main components are a rotating part called the rotor and a stationary part called the stator. The rotor is a single helix shaped as a round thread. The stator is formed as a double-helix with twice the pitch of the rotor. These two components create a series of separated chambers called cavities. When the rotor turns inside the stator, the cavities move continuously from the inlet to the outlet side of the stator thus producing continuous delivery.

Advantages: Smooth, virtually non pulsating flow, flow practically unaffected by viscosity, high pressure possible, hygienic and aseptic pumps available.Dry run protection available


Limitations: Very few but in sanitary applications cannot be stripped by hand for cleaning, must be CIP cleaned.

Maximum flow: 500 000 litres/hour
Maximum temperature: Approximately 160 degrees Celcius for elastomers, Higher for metal stators

Maximum pressure:


72 bar











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