Supplementary Material 3.5

Chapter 3 – What Causes Surge?

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Surge Analysis and the Wave Plan Method

Supplementary Material: Example Problems and Solutions

Chapter 3 – Problem 3.5

3.5 A water utility is in the process of selecting an isolation valve to be placed on a 500 mm diameter pipeline. Occasionally, the valve is expected to be used to stop the flowrate in the pipeline rapidly. The utility has shortlisted two types of valves: globe and butterfly. List all the pros and cons of standard globe valves and butterfly valves (using extensive web search or other literature) for this application. Which valve type would you recommend? Explain why.


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