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A hose pump, also known as a peristaltic pump or a roller pump, is a positive pump that can pump a wide range of fluids. Most hose pumps use rotating motions, however linear peristaltic pumps have also been developed. The fluid is contained in a flexible tube fitting device inside a circular pump case. Positive displacement or hose pumps, often known as constant flow machines, are machines that transfer fluids in liquid, gas, or slurry form via mechanical action. In this sort of pump, the moving liquid is confined in a cavity and sub... more