Piping design basis provides guidelines for design of Plot plan, Equipment layout, Piping Layout and selection of materials. It outlines applicable codes and standards. It includes international practices as well as local regulations. This document must be prepared carefully as it is a basis for other deliverables of Piping Department.
| Sr | Check Item | Done |
| 1 | Scope of the document defined | |
| 2 | Applicable codes and standards specified | |
| 3 | Piping Material Specification document number specified | |
| 4 | Clause for use of non-ferrous metals specified | |
| 5 | Pipe sizes to Avoid specified. E.g. 2.5?, 5? etc. | |
| 6 | Minimum pipe size specified. E.g. 3/4? | |
| 7 | Scope of supply for Valve Locking Devices specified e.g. vendor | |
| 8 | Minimu pipe size for rack specified e.g. 2? | |
| 9 | Use of Flat face flanges clause | |
| 10 | Source service material requirement standard.e.g. NACE MR0175 | |
| 11 | Line Number Composition specified | |
| 12 | Line list content columns specified | |
| 13 | Design conditions clause spefied | |
| 14 | Design temperature selection for uninsulated, insulated,jacketd and cold lines specified. | |
| 15 | Design pressure selection for normal lines, pump discharge lines, vacuum lines, steam lines, pressure relief lines specified. | |
| 16 | General criteria for equipment layout specified | |
| 17 | Standard for Equipment spacing specified e.g. OISD 118, IM.2.5.2 etc. | |
| 18 | Requirements for maintenance facilities spefied. | |
| 19 | Fixed maintenance facilities philosophy specified | |
| 20 | Mobile equipment handling philosophy specified. | |
| 21 | Heat Exchanger tube bundle removal requirements specified | |
| 22 | Maintenance facilities for pumps specified | |
| 23 | All Overhead clearance requirements specified | |
| 24 | All Horizontal clearance requiements specified | |
| 25 | Platform, Ladders and Stairways guidelines specified | |
| 26 | General Guildelines for Pipe routing specified | |
| 27 | Column and Vessel piping guidelines specified | |
| 28 | Heat Exchanger piping guidelines specified | |
| 29 | Pumps Piping guidelines specified | |
| 30 | Fired heater piping guidelines specified | |
| 31 | Compressor piping guidelines specified | |
| 32 | Valve Location guidelines specified | |
| 33 | Vent and Drains guidelines specified | |
| 34 | Pressure relief system guidelines specified | |
| 35 | Inline instruments guidelines specified | |
| 36 | Instruments Location Guidelines specified | |
| 37 | Sample connection guildelines specified | |
| 38 | Utility Station Guidelines specified | |
| 39 | Liquid sulphur piping guidelines specified if applicable | |
| 40 | Non-code piping guidelines specified | |
| 41 | Tank Farm piping guidelines specified | |
| 42 | Firewater piping guidelines specified | |
| 43 | Chemical injection piping guidelines specified | |
| 44 | Piping stress guidelines specified | |
| 45 | Piping support guidelines specified | |
| 46 | Safety measures guidelines specified |
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