Piping Arrangement Around Piperack
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
Tagged with: Arrangement • Constructability • Instrumentation • Maintainability • Preparation
Filed under: Piping
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The terms ‘bent’ and ’spandrel’ should have been explained. It should be mentioned that no pipe should be laid on pipe rack columns in order to keep provision for future expansion of pipe rack, by addition of upper tier.
Also, max. permissible lateral movement of pipes (due to thermal and wind effects) should have been mentioned.