1.Positive displacement progressive cavity pump 2,HIgh viscosity up to 200,000 cp 3.Food ... Vibration,No pulsation,Quiet operation,High suction abilityCould pumping liquid mixed fibre & solid grain,high viscosity liquid or mixed air ... or abrasive liquid,mixed air or easy bubble liquid,high liquid or low viscosity liquid,mixed fibre and solid ... drain off water from mine. progressive Cavity Pump system/PCP