Continental progressing cavity pumps in GA have characteristics similar to those of a piston pump. These include sealed cavities and operational likenesses such as the ability to pump at exceptionally low rates - even to high pressures - and revealing the result to be purely positive displacement. These pumps are also referred to as eccentric screw pumps due to the motion of their rotor.
The rotors are comprised of stainless or hardened steel and are covered with a chrome plating to offer resistance to abrasive and corrosive materials. Some liquids can have a negative effect on the chrome plating, and in those cases, a non-plated rotor should be utilized.
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