Line sizing is one of the most important and critical activities done by a
process engineer for any project. Piping is a major cost component in
any process plant and it may vary between 5 – 15% of total plant investment
and optimum design may result in considerable cost reductions.
Line size is determined with proper sizing calculations considering various
parameters. The main purpose of line sizing is to determine pump head
requirements, to meet design process parameters such as flow, velocity
and pressure to fill appropriate data on P & ID’s, data sheets and line lists.
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