This handbook provides a comprehensive and technically detailed examination of valves, focusing on their design principles, selection criteria, and practical applications across engineering systems. It develops a clear understanding of how valves regulate, control, and direct the flow of fluids under varying operational conditions. The handbook integrates theoretical knowledge with applied engineering practices, addressing performance characteristics, material considerations, and system compatibility. It further explores the operational behaviour of different valve mechanisms, highlighting their role in ensuring efficiency, safety, and reliability in industrial processes. Emphasis is placed on selecting appropriate valve types based on functional requirements, environmental conditions, and system demands. The discussion also reflects contemporary developments in fluid control technology, encouraging a systematic and application-oriented approach to valve design and utilisation.

This handbook is intended for engineers, technicians, and advanced students seeking to enhance their understanding of fluid control systems. It supports the development of technical competence, analytical skills, and practical insight required for effective selection, operation, and maintenance of valves in diverse engineering environments.