Pump Types and Applications

Pumps are used to add energy to fluids (gases, liquids, or slurries) in order to produce flow or increase pressure. They can perform many different functions, including moving a fluid from one location to another, recirculating a fluid in a closed system, such as in a heating or cooling system, and providing pressure, such as in hydraulic systems. These functions are performed primarily by two different types of pumps: centrifugal and positive displacement. This module describes the most common types of pumps and their applications.

•List the functions of pumps •Identify and describe common centrifugal pump classifications and designations •List three common centrifugal pump impeller designs •Define the terms "overhung," "close coupled," and "axially split" •Identify and describe common applications for centrifugal pumps •List common positive displacement pump designs •Identify and describe common applications of positive displacement pumps •Explain why relief valves are required on the discharge lines of positive displacement pumps