Minimum tube pitch recommended for shell and tube heat exchangers is about _______________ times the outside diameter of the tube?
Correct answer: A. 1.25
- A. 1.25
- B. 1.75
- C. 2.5
- D. 3.5
Explanation
The usual minimum tube pitch is about 1.25 times the tube outside diameter, providing enough ligament between adjacent tubes for tube-sheet strength and fabrication. Smaller pitches also make cleaning and tube rolling difficult.
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