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A dynamic compressor in which the gas is accelerated by the action of a bladed rotor and where the main flow is along the rotation axis of the rotor.
A physical object intended to compress and supply air or gas at medium pressure and medium volume flow.
A dynamic compressor in which one ore more impellers accelerate the gas and where the main flow through the impeller is radial.
A dynamic pump that contains impellers provided with vanes to generate centrifugal force to achieve the required pressure head.
A positive displacement compressor in which compression displacement is effected by the positive action of rotating elements.
A positive displacement pump that consists of a chamber containing gears, cams, screws, vanes, plungers or similar elements actuated by relative rotation of the drive shaft or casing and which has no separate inlet and outlet valves.