Analyzes the use, construction, and selection of valves. Valves are the components in a fluid flow or pressure system that regulate either the flow or the press... » 

Analyzes the use, construction, and selection of valves. Valves are the components in a fluid flow or pressure system that regulate either the flow or the pressure of the fluid. Though there are only four basic types of valves, there is an enormous number of different kinds of valves within each category, each one used for a specific purpose. «