Pumps have been used to enhance life since 2,000 BC with the creation of the shadoof by the Egyptians. Since that point in time, there have been many advances, both in design and purpose. Pumps can be used to move solids, liquids, and gases from one place to another. They also can be used to raise the pressure in a system for hydraulic operations. Today, most pumps are classified as centrifugal or positive displacement pumps. To adequately understand and use each pump, it is important to first understand the purpose, design, and common terms associated with pumps. |