Single rotating element, progressing cavities are generated which deliver a uniform, metered & non-pulsating flow. Head developed is independent of the rotational speed, where as the capacity is proportionate to the speed. Inherently self-priming, the pumps can work on snore & do not require a foot valve. Can Handle solids in suspension or medias containing a high percentage of solids. Suction lift capabilities of up to 9.5 mtr. and effective even in high vacuum conditions. Minimum degradation of shear-sensitive media & can also Handle highly viscous materials having pseudo-plastic characteristics. Due to the reversible rotation capabilities, progressive cavity pumps can perform with equal efficiency in either direction. Rotors turn inside a resilient stator & thus generate little noise.