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Diaphragm pumpA diaphragm pump is a positive displacement pump that uses a combination of the reciprocating action of a rubber or teflon diaphragm and suitable non-return check valves to pump a fluid. Sometimes this type of pump is also called a membrane pump. Additional recommended knowledgeThere are three main types of diaphragm pumps:
When the volume of a chamber of either type of pump is increased (the diaphragm moving up), the pressure decreases, and fluid is drawn into the chamber. When the chamber pressure later increases from decreased volume (the diaphragm moving down), the fluid previously drawn in is forced out. Finally, the diaphragm moving up once again draws fluid into the chamber, completing the cycle. This action is similar to that of the cylinder in an internal combustion engine. Applications
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Diaphragm_pump". A list of authors is available in Wikipedia. |