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Actuated Valves: Accessories & Hardware
Learning Path
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1. The Valve Body
After this course, you...
• have seen how the design details and material selection of the valve body is based on the piping classes,
• know the options possible for the end connections and gaskets,
• seen how the thermal insulation should be applied,
• have learnt the design choices that need to be made such as for the dimensions of the valve body and corrosion protection.
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2. Valve Trim
After this course, you....
• know how the required flow capacity relates to the valve size and weight,
• are familiar with Internal leakage, its causes and how it can be determined,
• have seen the effect of choosing the flowing direction through the valve,
• know how stem retention is designed into the valve,
• understand the many different design details of valve trims,
• know why hard facing of trim materials will avoid damage to the trim.
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3. Valve Bonnet
After this course, you...
• know how the bonnet may be connected to the valve body,
• understand the importance of fugitive emissions controls,
• are familiar with the different packing systems available on the market and their limitations,
• know the reasons for extension bonnets and their design details.
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4. Valve and Actuator Accessories
After this course, you
• understand the function of position indication and how the valve position can be transmitted to the operator in the control room,
• know the function of an air filter/regulator and why it is used on control valves,
• are familiar with Solenoid-operated valves and the different configurations used on control valves,
• know the reason for speed control and the associated challenges,
• understand when a lock-up valve is used,
• know why selecting the right fittings and tubing will make the valve more reliable.
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5. Valve Positioner and Diagnostics
After this course, you...
• know how a positioner deals with valve friction,
• familiar with different signal types, their background and challenges,
• understand the working principle of a positioner and its pneumatic output amplifier,
• know which interfaces the positioner has with the world around it,
• have seen the purpose and ambitions of valve diagnostics and asset management,
• familiar with how Partial Stroke Testing works and how it should be used.