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Formatted with an abundance of illustrations, this primer provides the engineer and student with a basic understanding of the key fundamentals involved in the design of pneumatic valves and controls used to regulate pressure temperature and flow. From easy-to-use equations and formulas based on theory and experience, schematics of various types of valves and controls, and simplified block diagrams that show the influence of various control functions the reader will develop a comprehensive understanding of this interesting subject.
This new edition of the ISA best-seller contains new material on valve sizing, smart (digital) valve positioners, field-based architecture, network system technology, and control loop performance evaluation. The author, a holder of 118 patents in control valve technology, shares his expertise with engineers faced with designing control loops and selecting final control elements. Written with the user in mind, the text avoids scientific wording and gives shortcuts through complex sizing and noise calculation formulas. It gives practical advice on how to apply control valves for safety, reduced energy costs, and easy maintenance. Contents: What is a Control Valve and How Does it Affect My Control Loop? Why Not Use a Speed-Controlled Pump? What Valve Type Shall I Choose? Valve Sizing Made Easy Sizing and Selection-Let the Computer Do it All!Why Most People Choose 'Equal Percentage' As a Flow Characteristic Valve Positioners The Mystery of Line Pressure Produced Valve Stem Forces, or Selecting the Correct Actuator Size How to Install a Control Valve When Do I Need to 'Hard Face' the Valve Trim and Other Questions Concerning Valve Materials Concern for the Environment Valves for Sanitary or Aseptic Service Twelve Commandments: What You Shall Not Do! Electric Versus Pneumatic Actuators Saving Energy The Bus System to the Rescue, or What the Future May Bring.
This book provides detail on pneumatic directional control valve and regulator and pneumatic circuitry. It emphasizes on component construction and function, as well as the installation, maintenance, and troubleshooting of malfunctioning components. It is useful to plant and design engineers.
This work features insights on valve sizing, smart (digital) positioners, field-based architecture, network system technology, and control loop performance evaluation. Baumann shares his expertise on designing control loops and selecting final control elements.
This book covers the whole range of today’s technology for pneumatic drives. It details drives for factory automation and automotive applications as well as describes the technology for the process industry like positioners or spring-and-diaphragm. In addition, the book examines several control strategies like binary mode cylinder drives or position controlled drives and computer aided analysis of complex systems.
Written for engineers, operators, and maintenance technicians in the power generation, oil, chemical, paper and other processing industries, The Valve Primer provides a basic knowledge of valve types and designs, materials used to make valves, where various designs should and should not be used, factors to consider in specifying a valve for a specific application, how to calculate flow through valves, and valve maintenance and repair. If you are involved in valve selection, specification, procurement, inspection, troubleshooting or repair, you will find a wealth of information in The Valve Primer. Features Presents information on a wide variety of valves and explains the operational basics of the thousands of valves that are found in power stations, refineries, plants and mills throughout the world. Includes over fifty illustrations depicting various valve types and how they operate. Contains valuable information the cannot be found in any other single source.
Automation is quickly becoming the standard across nearly every area of manufacturing. Pneumatic actuators play a very important role in modern automation systems, yet until now there has been no book that takes into account the recent progress not only in the pneumatic systems themselves but also in the integration of mechatronics, electronic cont