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Client: |
Drawing No. : |
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Date : DD/MM/YYYY |
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Drawing Title : PIPING GENERAL ARRANGEMENT DRAWING |
Notes:
- This checklist is intended for checking of layout drawings extracted from 3D CAD models.
- As a minimum, the checklist shall be completed for the first issue of the layout drawing.
- Items like Fire and Gas detectors and other E, I & T items (e.g. JBs, switch boards, lighting fittings, etc.) need not be shown in Piping Layouts.
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Sr. No |
Check Points |
Y/N |
Remarks |
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DESIGN |
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1 |
Plant North is shown. |
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2 |
Grade and paving levels and paving extents are shown. (Dimensions of paving not required.) |
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3 |
Equipment and instrument tag nos. are indicated as per P&ID. |
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4 |
All equipments are shown with locating coordinates/dimensions and elevations (centerline, BTL, u/s of base plate, etc.). |
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5 |
All equipment nozzles and vendor package terminal points are clearly identified and tagged. |
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6 |
All tie-in points and battery limits are clearly identified and tagged and coordinates/elevations are indicated. |
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7 |
All lines are identified by line numbers and major locating dimensions & elevation are given. |
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8 |
Flow directions and slope symbols are indicated as per the P&IDs. |
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9 |
All secondary pipe supports (standard & special) are indicated and tagged and the locating dimensions marked. |
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10 |
All primary pipe supports are identified by appropriate symbols (e.g. guide, axial stop, etc.). |
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11 |
Laydown/dropdown areas, space for exchanger tube removal and maintenance access areas are identified. |
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12 |
All buildings/shelters/technological structures are located with coordinates/dimensions. Names/tag nos and overall dimensions are given. |
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13 |
Structural grid numbers of pipe racks, buildings and shelters are shown. |
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14 |
Piperacks and sleepers are shown with locating coordinates/dimensions, widths, TOS elevations and tag numbers (if applicable). |
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15 |
The cross sections of piperacks, multi-level technological structures, culverts, etc., are shown wherever required. |
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16 |
All platforms and ladders/staircases are located with dimensions and elevations are marked. |
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DRAFTING |
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17 |
The drawing border conforms to the Project specifications or Company standards, as applicable. |
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18 |
Drafting conventions e.g. font types/sizes, text styles, line types, coordinate/dimension styles, layer structure, etc. are as per the Project specifications or Company CAD standards, as applicable. |
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19 |
Drawing title, drawing number and revision number in the title block are as per the TDR. |
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20 |
Electronic file name is indicated at appropriate location on the drawing. |
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21 |
Revision block contains initials of the originator, checker and approver (both Discipline & Project). |
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22 |
Drawing scale is stated in the title block and graphic scale (bar scale) is shown. |
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23 |
The drawing scale conforms to the Project specifications or Company standards, as applicable. |
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24 |
All general notes are checked and the units for dimensions, coordinates & levels are given in the notes. |
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25 |
Legend for applicable symbols is shown (e.g. pipe supports, new/existing facilities, demolition, scope cloud, etc.). |
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26 |
Reference drawing numbers and titles are listed and checked. List shall include unit plot plan and piping key plan as a minimum. |
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27 |
Status stamp (e.g. “For Construction”) is shown. |
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28 |
Revision clouds, along with revision number triangles are marked properly, if applicable. |
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29 |
“Hold” clouds, if applicable, are properly marked and the list of “Holds” is indicated. |
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30 |
Key plan is shown and the applicable area/unit of the plot plan is highlighted. |
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31 |
Match line co-ordinates and drawing limits are clearly marked and are consistent with the Key Plan drawing. Continuation drawing numbers are correctly written. |
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32 |
Drawing extracted from 3D CAD model is not manually edited. |
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Prepared By |
Checked By |
Back Checked By |
Final Checked By |
Name: |
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Designation: |
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Revision number: |
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Date: |
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