Check List for Piping Unit Pl

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Check List for Piping Unit Plot Plan

By A JAD

Project Name: Job No.:

Client:

Drawing No. : Date : DD/MM/YYYY

Drawing Title : UNIT PLOT PLAN

Notes: 1. As a minimum, the checklist shall be completed for the IFA and IFC issues of the Unit plot plans.

Sr.

NoCheck Points Y/N Remarks

DESIGN

1 Plant North and True North are shown.

2 Grade and paving levels are shown.

3Extents of paving areas are shown with curbing and drain sump, as applicable

(dimensions not required).

4 Unit/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.

6 Road width and elevations are given.

7 Road crossings, e.g. culverts, casing pipe, duct banks are shown wherever applicable.

8 Crash barriers are shown wherever required.

9 Emergency exits are shown.

10 Availability of access to heavy equipment for erection purpose is checked.

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11 Hard 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.

14

All equipment/packages are shown with locating coordinates/dimensions and

elevations (centerline, BTL, u/s of base plate, etc.) and the elevations arechecked wrt

P&ID/Process requirements.

15 All 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.

17

Multiple 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.

20

Pipe 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.

26 Sufficient 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).

28

All 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.

30

Structural 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.

32



Underground 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).

33

Storm 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.

36 Safety 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.

39 Volume bottles for SDV’s are shown on platforms/modules, wherever applicable.

DRAFTING

40The drawing border conforms to the Project specifications or Company standards, as

applicable.

41

Drafting 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.

43 Electronic file name is indicated at appropriate location on the drawing.

44Revision block contains initials of the originator, checker and approver (both

Discipline & Project).

45 Drawing 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.

48 Legend for applicable symbols is shown (e.g. new/existing facilities, scope cloud, etc.)

49Reference drawing numbers and titles are listed and checked. List shall include overall

plot plan and key plot plan as aminimum.

50 Status 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.

53 Key plan is shown and the applicable area/unit of the plot plan is highlighted.

54 All 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.

56 Drawing extracted from 3D CAD model is not manually edited.



Prepared By Checked By Back Check By Final Checked By

Name:

Designation:

Revision number:

Date:

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Check List for Piping Unit Pl