Course Description
Extensive course materials provided contained useful information about valves/sizing and selection both theoretical and practical. You will gain a practical understanding of control valves, actuators, and positioner designs and their applications. The course also provides methods that can be used to identify specific valve problems and arrive at acceptable solutions within engineering tolerance
Course Objective
- Compare various types of final control elements
- Understand a typical valve operation in a control loop
- Differentiate between various types of valves and the benefits of each
- Compare rising stem to rotary style valves
- Analyze a control system to determine control valve needs
- Use ISA standards for control valve specification and selection
- Size valves for any flow condition likely to be found in a process plant
- Evaluate and select actuators for specific applications
- Specify appropriate auxiliaries including positioners and I/P transducers
- Design control valve installations that are safe and trouble-free
Course Outlines
Introduction:
- Valve in Loop,
- Actuator,
- Positioner
Basic Valve Types:
- Globe Valves,
- Ball Valves,
- Plug Valves,
- Butterfly Valves
Actuators:
- Spring/Diaphragm,
- Piston,
- Vane,
- Scotch-Yoke,
- R & P
Comparison:
- Rising Stem,
- Rotary Stem,
- Accessories,
- Positioner,
- I/P Converters
Valve Performance:
- Gain,
- Time,
- Trim,
- Special Needs
Flashing/Cavitation & Noise:
- Cause/Effect,
- Prevention,
- OSHA,
- Source and Abatement
Installation:
- Performance, Safety and Others
Valve Sizing:
- Valve sizing calculation Manual,
- Valve Sizing calculation Computer
Specification and Selection:
- Process Requirements,
- Other Considerations
Maintenance and Troubleshooting Considerations:
- Special Requirements,
- Diagnostic Tools
Smart Valves:
- Available Designs,
- Applications in Industry
