Reciprocating pumps are positive displacement pumps that move fluids by using a back-and-forth motion. This motion is created by a piston or diaphragm, which draws fluid into a chamber during the suction stroke and then forces it out during the discharge stroke. They are commonly used in various applications, including water supply, chemical processing, and oil extraction. These pumps are known for their ability to handle high pressures and provide a steady flow rate. They can pump a wide range of fluids, including viscous liquids and slurries. Common types of reciprocating pumps include piston pumps and diaphragm pumps.