Piping Arrangement Around Piperack
1.Gathering of Information
-Plot plan
-Piping and Instrumentation diagram
-Check of items to be installed on the piperack
-Plant layout specification
-Client specification
2.Conceptual Layout
-Random arrangement of piping in the piperack
-Tentative determination of length of piping arranged
-Indicate data of line number, etc. in the piping arrangement
-Preparation of piperack information
3.Detailed Piping Arrangement
-Study on piping arrangement
-Measure on thermal expansion
-Connection with equipment piping and adjustment of arrangement
-Preparation of detailed cross section drawing
-Preparation of piperack information
4.Factors to be Considered in Piping Arrangement
-Safety
-Accessibility
-Maintainability
-Constructability
-Economy
5.Criteria for Piping Arrangement
-Consideration on groupings of pipelines and items to be installed
-Consideration on size of pipelines
-Consideration on the design condition of fluid in pipelines
-Consideration on the necessity of expansion loop
6.Determination of Pipe Rack Width
-Pipe spacing
-Thermal displacement in piping
-Space to be secured for operating valves and instruments and also for maintenance
-Space for the width of the duct, and direction of cable withdrawal
-Space for future installation
7.Basis of Height Determination
-Aisle way for mobile equipment and headroom clearance
-Equipment clearance under pipe rack
-Equipment installed above a rack
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