Linear peristaltic pump

Linear peristaltic pump

A peristaltic pump is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained within a flexible tube fitted inside a circular pump casing (though linear peristaltic pumps have been made). A rotor with a number of cams ('rollers', 'shoes' or 'wipers') attached to the external circumference compresses the flexible tube. As the rotor turns, the part of tube under compression closes (or 'occludes') thus forcing the fluid to be pumped to move through the tube. Additionally, as the tube opens to its natural state after the passing of the cam ('restitution') fluid flow is induced to the pump. This process is called peristalsis and is used in many biological systems such as the gastrointestinal tract. Image File history File links Download high resolution version (1600x1200, 46 KB) Description de: Beschreibung, Schlauchpumpe lineare Bauart Quelle: Erschaffen mit QCad und theGIMP Zeichner: Richard Schneider es: Descripción, bomba peristáltica utilizando tubería Fuente: Creado por QCad y theGimp Licensing File links The following pages link to... Image File history File links Download high resolution version (1600x1200, 46 KB) Description de: Beschreibung, Schlauchpumpe lineare Bauart Quelle: Erschaffen mit QCad und theGIMP Zeichner: Richard Schneider es: Descripción, bomba peristáltica utilizando tubería Fuente: Creado por QCad y theGimp Licensing File links The following pages link to... Image File history File links Download high resolution version (1600x1200, 239 KB) Used on the German Wikipedia Description de: Beschreibung, Schlauchpumpe bewegt lineare Bauart Quelle: Erschaffen mit QCad und theGIMP Zeichner: Richard Schneider es: Descripción, animada bomba peristáltica utilizando tubería Fuente: Creado por QCad y theGimp Licensing... Image File history File links Download high resolution version (1600x1200, 239 KB) Used on the German Wikipedia Description de: Beschreibung, Schlauchpumpe bewegt lineare Bauart Quelle: Erschaffen mit QCad und theGIMP Zeichner: Richard Schneider es: Descripción, animada bomba peristáltica utilizando tubería Fuente: Creado por QCad y theGimp Licensing... Manual water pump in Košice-Ťahanovce, Slovakia An electric driven pump of water works nearby the Hengstey See, Germany 19th century Dutch diesel pump in Rijswijk, Netherlands Manual pump used to obtain water in Afghanistan This article is about the mechanical device. ... A subset of the phases of matter, fluids include liquids, gases, plasmas and, to some extent, plastic solids. ... R0t0r is from efnet ... A cam is a projecting part of a rotating wheel or shaft that strikes a lever at one or more points on its circular path. ... Peristalsis is the process of involuntary wave-like successive muscular contractions by which food is moved through the digestive tract. ... The gastrointestinal tract or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and expels the remaining waste. ...

Peristaltic pumps are typically used to pump clean or sterile fluids because the pump cannot contaminate the fluid, or to pump aggressive fluids because the fluid cannot contaminate the pump. Some common applications include pumping aggressive chemicals, high solids slurries and other materials where isolation of the product from the environment, and the environment from the product, are critical.

Higher pressure peristaltic pumps which can typically operate against up to 16 bar, typically use shoes and have casings filled with lubricant to prevent abrasion of the exterior of the pump tube and to aid in the dissipation of heat. Lower pressure peristaltic pumps, typically have dry casings and use rollers. High pressure peristaltic pumps typically use reinforced tubes, often called 'hoses', and the class of pump is often called a 'hose pump'. Lower pressure peristaltic pumps typically use non-reinforced tubing, and the class of pump is sometimes called a 'tube pump' or 'tubing pump'. Lubricants are an essential part of modern machinery. ...

Since the only part of the pump in contact with the fluid being pumped is the interior of the tube, it is easy to sterilise and clean the inside surfaces of the pump. Furthermore, since there are no moving parts in contact with the fluid, peristaltic pumps are inexpensive to manufacture. Their lack of valves, seals and glands makes them comparatively inexpensive to maintain, and the use of a hose or tube makes for a relatively low-cost maintenance item compared to other pump types. Sterility is the quality or state of being unable to reproduce. ...

Typical applications

• Dialysis machines
• Open-heart bypass pump machines
• Food manufacturing
• Beverage dispensing
• Pharmaceutical production
• Sewage sludge
• tabletop decorative fountains and waterwalls

In medicine, dialysis is a type of renal replacement therapy which is used to provide an artificial replacement for lost kidney function in renal failure. ... Sewage includes domestic, municipal, or industrial liquid waste products disposed of via a pipe or similar structure. ...

External links

• All about pumps
• The Verderflex Peristaltic Pump stands apart from its competitors