Checklist : Equipment Layout Design


Equipment layout is one of the most important deliverable of a piping department. It shows location and placement of all equipments in a particular process or utility area along with various types of access and maintenance areas. Following checklist ensures that equipment layout that you are developing meets all required standards as well as good engineering practices.

Hashtags : #equipment_layout #piping_engineering #checklists

SrCheck ItemDone
1Plant North and True North are shown.
2Grade and paving levels are shown.
3Extents of paving areas are shown with curbing and drain sump, as applicable (dimensions not required).
4Unit/area code, name or tag (e.g. UTA, Utility Area, Unit-109, etc.) is indicated.
5Main roads and secondary roads are located with centre line and coordinates/locating dimensions.
6Road width and elevations are given.
7Road crossings, e.g. culverts, casing pipe, duct banks are shown wherever applicable.
8Crash barriers are shown wherever required.
9Emergency exits are shown.
10Availability of access to heavy equipment for erection purpose is checked.
11Hard stand areas for heavy equipment is properly marked and located (if applicable).
12Equipment list is given in the drawing and equipment tags marked in the plot match with the list.
13Equipment/packages and their tag nos. are checked with the Project Equipment List/P&IDs.
14All equipment/packages are shown with locating coordinates/dimensions and elevations (centerline, BTL, u/s of base plate, etc.) and the elevations are checked wrt P&ID/Process requirements.
15All equipment sizes are checked with mechanical data sheets/Vendor drawings.
16Auxiliary equipment (e.g. API seal plans, LO coolers/skids, etc.) of pumps/compressors and other packages are shown as per Vendor data.
17Multiple equipment having tag nos. with suffixes like A/B/C (e.g. multi-bay air-coolers, pumps, etc.) are clearly identified and tagged as per Project Equipment List/P&IDs.
18Fixed/sliding saddle locations for horizontal vessels and heat exchangers are indicated and the direction of slope is indicated for sloping vessels.
19Piperacks are shown with the module breaks and tag nos. (as per Civil drawings) and the locating coordinates, column to column dimensions and widths are indicated.
20Pipe rack TOS elevations are clearly marked, esp. in case of multi-tier racks. Sectional details are provided wherever required and space requirement for cable trays is marked.
21Pipe tracks/sleepers are shown with locating coordinates/dimensions, widths, TOS elevations and tag numbers (if applicable).
22Minimum distances between equipment/buildings/units as per the applicable codes/Project standards are checked.
23Laydown/dropdown areas, exchanger tube removal areas, equipment maintenance/crane access areas are shown wherever required.
24The requirement of monorail/EOT/HOT cranes/pipe davits, if any, for compressor shelters/pump houses/platforms, etc. is shown with elevation & capacity.
25Davit location/orientation on heavy equipment/columns/heat exchangers, etc. is checked for access/maintenance handling.
26Sufficient access clearance for fork lift/crane/vehicle is available within the unit area.
27All platforms are shown and elevations (TOG) indicated (locating dimensions not required).
28All buildings/shelters/technological structures (including analyser shelters, if applicable) are located with coordinates & tag numbers and overall dimensions are given.
29Floor plans/sections of shelters/technological structures are shown where necessary. Equipment and platforms within shelters are shown.
30Structural grid numbers of pipe racks, buildings and shelters are shown. Grids numbers are marked with numerals in one direction and alphabets in the other direction as per the project requirements.
31Future requirements (e.g. future units/equipment, expansion areas, etc.) are provided and clearly marked.
32Underground facilities (e.g. buried vessels, u/g storage pits, etc.) are shown. Items like valve pits, OWS manholes, etc. are shown in model extracteddrawings (dimensions/coordinates are not required).
33Storm water drain trenches and major UG corridors (for UG piping, pipelines, cable trenches, etc.) are shown (dimensions/ coordinates are not required). Foundations below ground need not be shown.
34HSE requirements (if any) for staircase/escape route for tech. structure and pipe rack platforms are checked.
35Sterile zone radius is shown for flare stack and no other equipment is located within the sterile zone.
36Safety distance/radius is shown for fired heater/hazardous equipment (if any).
37HSE facilities/equipment like deluge valve skids, foam skids, safety showers, eye washes, wind socks, assembly points, etc., are shown, as applicable.
38Dyke walls are shown around tanks (wherever applicable) with dimensions and heights.
39Volume bottles for SDV s are shown on platforms/modules, wherever applicable.
40The drawing border conforms to the Project specifications or Company standards, as applicable.
41Drafting conventions e.g. font types/sizes, text styles, line types, coordinate/dimension styles, layer structure, etc. are as per the Project specifications orCompany CAD standards, as applicable.
42Drawing title, drawing number and revision number in the title block are as per the TDR.
43Electronic file name is indicated at appropriate location on the drawing.
44Revision block contains initials of the originator, checker and approver (both Discipline & Project).
45Drawing scale is stated in the title block and graphic scale (bar scale) is shown.
46The drawing scale conforms to the Project specifications or Company standards, as applicable.
47All general notes are checked and the units for dimensions, coordinates & levels are given in the notes.
48Legend for applicable symbols is shown (e.g. new/existing facilities, scope cloud, etc.)
49Reference drawing numbers and titles are listed and checked. List shall includeoverall plot plan and key plot plan as aminimum.
50Status stamp (e.g. For Approval , For Construction ) is shown.
51Revision clouds, along with revision number triangles are marked properly, if applicable.
52 Hold clouds, if applicable, are properly marked and the list of Holds is indicated.
53Key plan is shown and the applicable area/unit of the plot plan is highlighted.
54All tags are clearly marked and are legible.
55Match line co-ordinates and drawing limits are clearly marked and are consistent with the Key Plan drawing. Continuation drawing numbers are correctlywritten.
56Drawing extracted from 3D CAD model is not manually edited.


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