Valves Domestic and International Standard Application Technology Encyclopedia (Includes 1 CD, Deluxe Hardcover)

Author: Wang Hongru
Publisher: Yinsheng Audiovisual Publishing House
Publication Date:
Features: Valves are widely used in fields such as petroleum, chemical industry, coal, power, pharmaceuticals, food, as well as water supply and drainage and heating. They play a crucial role in controlling the pressure, flow, and direction of fluids. Due to differences in the pressure, flow, temperature, and physicochemical properties of fluids, the control and operational requirements for fluid systems also vary. In engineering, the correct selection and use of valves are key to achieving their sealing performance, strength performance, regulating performance, actuation performance, and flow-through performance. For most valves, the sealing issue is the primary concern. Poor sealing performance or short sealing life can lead to external or internal fluid leakage, causing environmental pollution and economic losses. The leakage of toxic and harmful fluids, corrosive fluids, radioactive fluids, and flammable and explosive fluids may result in significant economic losses or even personal injuries. Therefore, the safety and reliability of valves are extremely important, and great attention must be paid to the selection and application technology of valves in engineering. This book starts with the basic knowledge required for selecting valves and provides a comprehensive introduction to valve materials, technical parameters, quality inspection, and safety performance. It also systematically explains the sealing performance of valves, leakage standards, relevant fluid properties, metal and non-metallic sealing surfaces and gasket types, packing types, as well as pressure loss and flow coefficient through valves.