Valves are the components in a fluid flow or pressure system that regulate either the flow or the pressure of the fluid. They are used extensively in the process industries, especially petrochemical. Though there are only four basic types of valves, there is an ermous 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.
Peter Smith is an independent consultant based in Europe with 30 years of experience in the onshore and offshore sectors of the oil and gas industry. He has worked on design and construction projects for, Exxon, Total, Mobil, Woodside Petroleum, Shell, Statoil, Bluewater, Elf, and Huffco Indonesia. R.W. Zappe is a retired consultant for ICI Australia Operations Pty. Ltd., where he had been employed since 1950. A graduate of Technical University Wuppertal in mechanical engineering, he also worked for Dragerwerk, Lubeck as a design engineer for respiratory equipment until he founded a small manufacturing company in Hamburg.