Valves are the components in a fluid flow or pressure system that regulate either the flow or the pressure of the fluid . Th Valve Selection Handbook ey are used extensively in the process industries , especially petro chemical . Though there are only four types of valves , there is an enormous number of different kinds of valves within each category , each one used for a specific purpose . No other book on the market analyzes the use , construction , and selection of valves in such a comprehensive manner.

Audience
Process Engineers , Mechanical Engineers , Pipers , Pipeline Engineers , Engineering Consultants Servicing The Petrochemical and other process industries , Chemical Engineers .

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