【Piping Valve Technology Edition – Daily Question on Common Piping Errors】20170724
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Discussion on Common Piping Errors 008: Which of the following designs (the diagram shows a piping design for a tower) is correct? A. B. Answer: B. When there is a large temperature difference between the pipeline and the tower wall, resulting in relative elongation, this elongation should be absorbed by the individual branches, and the length of L should be sufficient to accommodate such relative elongation. PS: Excerpted from the Chemical Pipeline Design Manual
There are 2 piping designs; when the temperature difference between the tower wall and the piping is small, design A is acceptable. When the temperature difference between the tower wall and the piping is large, B is correct. Due to temperature differences, the thermal expansion and contraction of the pipes should be absorbed by the branch pipes, and their length L should be sufficient to accommodate the amount of compensation resulting from heat.