The most economical flow control valve for use with large diameter pipes is a__________________?
Correct answer: B. Butterfly valve
- A. Globe valve
- B. Butterfly valve
- C. Needle valve
- D. None of these
Explanation
Butterfly valves are compact, lightweight, and relatively inexpensive for controlling flow in large-diameter pipes. Globe and needle valves provide better throttling precision but become costly and bulky at large sizes.
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