Valves – How industrial components work
A control valve is a valve used to control fluid flow by varying the size of the flow orifice according to a signal from a controller
This enables direct control of the flow rate and thus control of process variables such as pressure, temperature and liquid level.
In automatic control terminology, a control valve is referred to as a “final control element.”
More information about valves
Query valves and industrial spare parts from Unitec:
https://www.unitecd.com/e-catalog/description-articles/?lingua=GB&category=Valve&prm=ric_ft
Buy books
Electric Motors and Drives: Fundamentals, Types and Applications
Best-selling reference work on electric motors and drives for non-specialists that closes the gap between mathematics and theory.
Mechanical Design of Electric Motors
The rapid increase in energy consumption and the emphasis on environmental protection have posed challenges to the motor industry, as has the development and manufacture of highly efficient, reliable, cost-effective, energy-saving, quiet, precisely controlled and long-lasting electric motors.
The book “Mechanical Design of Electric Motors
Mechanical Design of Electric Motors
The importance of electric motors is known in various engineering fields. The book provides comprehensive coverage of various types of electric motors, including DC motors, three- and single-phase asynchronous motors, synchronous motors, general-purpose motors, AC servo motors, linear induction motors, and stepper motors. The book covers all the details of DC motors, including torque equation, back electromotive force, characteristics, starter types, speed control methods and applications.
The book also covers various testing methods for DC motors such as Swinburne's test, brake test, deceleration test, field test and Hopkinson's test. The book also explains three-phase asynchronous motors in detail. It covers generation of rotating magnetic field, construction, operation, effect of slip, torque equation, torque quotient, torque-slip characteristics, losses, power flow, equivalent circuit, effect of harmonics on performance, pie chart and applications. This chapter also covers the treatment of the asynchronous generator. The book teaches various starting methods and speed control methods of three-phase asynchronous motors. The book includes the explanation of various single-phase asynchronous motors. The chapter on synchronous motors provides a detailed treatment of construction, principle of operation, behavior under load, analysis of phasor diagrams, V and inverted V curves, swings, synchronous capacitor and applications. The book also teaches various special machines such as single phase commutator motors, general purpose motors, AC servo motors, linear induction motors and stepper motors. The book uses clear, understandable language to explain each topic. The book provides the logical method to explain various complicated topics and step-by-step methods to facilitate understanding. Each chapter is supported by necessary illustrations, self-explanatory diagrams and a variety of solved problems. The book explains the philosophy of the topic, which greatly improves the understandability of the concepts and makes the topic more interesting.
Motor Starting and Control Primer: An introduction to the starting techniques and control of electric motors
Whether you are a busy electrical engineer looking to refresh your knowledge of engine starting, a time-limited student new to the subject, or an interested person with an hour to spare, this book is the right place to start. Steven McFadyen shares his engine starting expertise in a clear and easy-to-understand manner without time-consuming paraphrases or self-serving discussions. Equipped with wiring diagrams and detailed explanations of the most common engine starting methods and challenges, this book is an invaluable reference. It has something to offer anyone who enjoys learning new things while helping practicing electrical engineers design and implement reliable and functional motor starters.
