Course description
Professional Certificate of Competency in Control Valve Sizing, Selection and Maintenance
Control valves are the workhorse of our facilities, continually functioning to ensure our systems work as intended. A properly specified, engineered, designed, installed, and maintained control valve can be one of the most profitable investments a facility can have, while a control valve that "does not work well" can be an increased risk of injury (more exposure of maintenance personnel working on the valve), and disruption to your system.
With today's focus on data management, the control valve is the part of the control loop that not only requires integration with modern data collection methods, but also involves mechanical features (moving parts, exposure to process fluids, material selection issues) as well as occupational health and safety issues not associated with other parts of the control loop (such as noise). Often the benefits of modern SCADA systems can be lost with inappropriate or minimal attention to the control valves.
This comprehensive certificate course covers the essentials of control valves and actuators. With this knowledge, the user is better placed to fully realize the full potential and benefit of any control system.
Selections of case studies are used to illustrate the key concepts with examples of real world working control valves. The course is aimed at those who want to get a solid appreciation of the fundamentals of their control valve design, installation and troubleshooting.
Outcome / Qualification etc.
What will you learn
- Understand what happens inside a control valve from a basic fluid mechanics point of view
- Appreciate the difference between cavitation and flashing
- Understand the difference between controlled and choked flow
- Do simple calculations to determine CV values
- Recognize severe service applications and have an appreciation for the methods of tackling the problems associated with such applications
- Identify the different types of control valves commonly in use and understand the relative advantages of each
- Choose between different characteristics on offer
- Understand the advantages and disadvantages of different seat leakage rates
- Size actuators for linear and rotary applications and know the relative advantages of pneumatic, hydraulic and electric types
- Select materials for bodies, trims, packing boxes, and gaskets
- Use a computer sizing program to assist with the selection of control valves
- Understand the failure modes for control valves and demonstrate new approaches to trouble shooting
Training Course Content
Modules
- Introduction
- Types of Control Valves
- Basic Sizing for Liquids
- Basic Sizing for Gases and Vapours
- Inherent and Installed Flow Characteristics
- Actuators
- Cavitation and Flashing
- Noise Prediction and Treatment
- Materials of Construction
- Maintenance Issues
- Principles of Pressure Relief Devices and Pressure Relieving Systems
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