Equipment Layout Drawing Checklist 4i5x3j

Equipment Layout Drawing Checklist Equipment layout is a critical input from piping department to all other departments such as Civil Engineering, Structural Engineering, Electrical Engineering, Process Engineering, Construction etc. It need to be checked properly with utmost care to make sure that no information is missing. A typical checklist to check equipment layout is as follows : Sr.

Description

1

Title Block : Drawing Number properly specified.

2

Title Block : Area code specified.

3

Title Block : Project Name and Number Specified.

4

Title Block : Plan or Section Specified

5

Title Block : For Plans, Elevation level specified.

6

Title Block : For Sections, Section Grid Numbers Specified.

7

Title Block : Revision Number Specified.

8

Sidebar : List of Equipments with Tag numbers and Equipemnt Description included in Side bar.

9

Sidebar : Top of foundation elevation specified for Pumps.

10

Sidebar : Bottmon Tanline elevation specified for Towers and Vertical Vessels.

11

Sidebar : Centreline elevations specified for Horizontal Vessels, Exchangers

12

Sidebar : List of all holds included

13

Sidebar : List of reference documents included

14

Sidebar : Key plan included with patterned area indicating location of this drawing.

15

Drawing : North direction specified along with prevailing wind direction.

16

Drawing : All applicable structural grids marked.

17

Drawing : All applicable structural components shown including small platforms, ladders etc.

18

Drawing : TOS elevation of all platforms specified.

Don e

19

Drawing : All equipments located in both EW and NS directions.

20

Drawing : All structural cutouts shown.

21

Drawing : Requirement for curb wall for chemical handling pumps, tanks in shown.

22

Drawing : Foundation elevation of pumps shown in elevation drawing.

23

Drawing : BTL Elevation of vertical vessels shown in elevation drawing.

24

Drawing : Centerline elevation of horizontal vessels and exchangers shown in elevation drawings.

25

Drawing : Operator and maintenance accessways marked.

26

Drawing : Davit requirements and drop zones marked.

27

Drawing : Floor cutouts to remove agitator assemblies if any marked.

28

Drawing : Monorails, Overhead travelling crane requirements shown.

29

Drawing : Staircase requirements shown.

30

Drawing : Location of Manholes shown (Orientation,Elevation).

31

Drawing : Equipment platforms and ladders shown.

32

Drawing : Ducting work if any is shown.

33

Drawing : Tube bundle removal area shown for Heat exchangers.

34

Drawing : Manhole cover swing area shown.

35

Drawing : Maintenance area for plate heat exchanger, spiral heat exchanger is shown.

36

Drawing : Locaton of fixed saddle for horizontal shell and tube heat exachangers is shown.

37

Drawing : Pumps located in plan based on centre of their discharge.

Bloque de título: Número Plano especificó correctamente Bloque de título: Código de área especificada. Bloque de título: Nombre del proyecto y el número especificado Bloque de título: Plan o una sección especificada Bloque de título: Para Planes, el nivel de elevación especificada Bloque de título: Para las secciones, la sección de cuadrícula números especificados

Bloque de título: Número de revisión especificado Recuadro: Lista de Equipamientos con Números de marca y equipemnt descripción incluida en la barra lateral Recuadro: Parte superior de la elevación fundación especificado para Bombas Recuadro: Bottmon Tanline elevación especificada por Torres y vasos verticales Recuadro: elevaciones línea central especificados para recipientes horizontales, Intercambiadores Recuadro: Lista de todas las bodegas incluido Recuadro: Lista de documentos de referencia incluido Recuadro: Plano clave incluida en el área de patrón que indica la ubicación de este plano Plano: dirección Norte especifica junto con la dirección predominante del viento Plano: Todas las rejillas estructurales aplicables marcados Plano: Todos los componentes estructurales aplicables mostrado incluidas las pequeñas plataformas, escaleras, etc. Plano: TOS elevación de todas las plataformas especifica Plano: Todos los equipos ubicados en ambas direcciones EW y NS Plano: Todos los recortes estructurales mostrados Plano: obligación de pared acera para bombas de manipulación química, tanques de muestra Plano: Fundación elevación de las bombas se muestra en el plano de elevación Plano: BTL Elevación de los vasos verticales que se muestran en el plano de elevación Plano: la elevación de la línea central de recipientes horizontales e intercambiadores se muestra en los planos de elevación Plano: operario de mantenimiento de vías de y marcados Plano: requisitos de pescante y soltar zonas marcadas Plano: Recortes de suelo para eliminar los conjuntos de agitador si los hay marcadas Plano: Monorrieles, puentes-grúa requisitos mostrados Plano: Escalera requisitos mostrados Plano: Localización de pozos de registro se muestran (Orientación, Elevación) Plano: Equipo plataformas y escaleras muestran Plano: La canalización de trabajo si se muestra ningún Plano: Tubo área de remoción haz mostrado para intercambiadores de calor Plano: zona de giro Tapa de registro muestra Plano: Área de mantenimiento de intercambiador de placas, se muestra intercambiador de calor en espiral Plano: Locaton de montura fija de calor de carcasa y tubos horizontales se muestra exachangers Plano: Las bombas situadas en el plan basan en centro de su vertido

Piping Isometric Drawing Checklist Piping isometric drawing is very important document as it is the drawing which ultimately goes for fabrication. Any errors in it can prove very costly. It should be thoroughly checked for any errors. Every organisation has a checklist for isometrics drawing. Here is a typical isometric drawing checklist. Sr.

Description

1

Title Block : Line Number specified.

2

Title Block : Isometric Number specified.

3

Title Block : Sheet Number specified.

4

Title Block : Project Code, Project Number and Area Code Specified.

5

Title Block : Piping layout drawing number specified.

6

Title Block : PID Number Specified.

7

Title Block : Insulation and Heat Tracing Specified.

8

Title Block : Radiography Requirements Specified.

9

Title Block : Hydrotesting Requirements Specified.

10

Drawing : North Arrow Specified.

11

Drawing : Co-ordinate System Specified.

12

Drawing : Equipment name and nozzle number along with nozzle size and rating specified.

13

Drawing : Drawing : Equipment location from nearest equipment layout grid specified.

14

Drawing : Drawing : Nozzle orientation specified.

15

Drawing : Nozzle centreline elevation specified.

16

Drawing : Line elevations marked at every change in elevation.

17

Drawing : If line is offset form Standard Axis, offset properly specified.

18

Drawing : Slope requirements if any are specified.

19

Drawing : Line number with Fluid, Size, Spec, Number, Insulation, Heat Tracing etc. marked on drawing.

Don e

20

Drawing : Spec break if any properly specified.

21

Drawing : All components properly dimensioned.

22

Drawing : Flow arrow marked.

23

Drawing : Hold marked for hold components.

24

Drawing : Continuation isometric drawing number and sheet number specified.

25

Drawing : Instrument Tags specified.

26

Drawing : Control Valves tags Specified.

27

Drawing : Special Items Tags specified.

28

Drawing : Orifice Meter streight run requirement ascertained.

29

Drawing : High point vents and low point drains included.

30

Drawing : Structural penetrations if any are marked.

31

Drawing : Valve Stem orientation is marked.

32

Drawing : Typical assembly tags specified.

33

Drawing : Insulation limits for Personal protection are marked.

34

Drawing : Reducer sizes marked.

35

Drawing : Branch sizes marked.

36

Drawing : Any other change in sizes are marked.

37

Drawing : Spool sequence numbers marked.

38

Drawing : Pipe tags and locations marked.

39

Drawing : Orifice meter taps orientation marked.

40

Drawing : Field weld locations marked.

41

Drawing : Fabrication limits marked.

42

Drawing : MTO Sheet :

43

MTO : Component Description properly included

44

MTO : Commodity Code properly included.

45

MTO : Valve Data Sheets specified.

46

MTO : Non piping MTO not included.

47

MTO : Hold MTO not included.

48

MTO : Instrument, Special Items, Typical Assemblies Tags included.

49

MTO : Calculation of Length of pipes and number of fittings is correct as per drawing.

50

MTO : Piping Material specification, Sizes correctly included.

Checklist for Piping Isometrics: P&ID, Layout, Drafting Related 4 Comments

Here is a checklist for Piping Isometrics Sr. No.

Check Points

P&ID RELATED 1

Following items are checked with the P&ID (IFD or later issue): a)

Line number and pipe class.

b)

Tag nos. of equipment, instruments, special items, actuated and manual valves (if applicable).

c)

Flow direction (including flow direction of check valve)

d)

Slope/no pocket/free draining requirement, if any.

e)

Min/max distances, straight lengths, etc. as specified in P&ID.

f)

Close/open position for spectacle blind or spacer & blind.

g)

Removable spool requirement, if any.

h)

Sequence of branch connections (as agreed with Process in case of any changes).

i)

Piping spec break, if any (preferably be at flange ts/valves, each iso to contain only one spec).

j)

Special feature of valves (e.g. LO, LC, etc.)

k)

Insulation symbol for insulated lines.

l)

Equipment nozzle/TP numbers and tie-in numbers.

m) Insulating gaskets are selected as shown in P&IDs n)

Specific requirements mentioned in applicable P&ID notes (if any) are complied

LAYOUT RELATED 2

High point vents and low point drains are provided, as per project requirements, for lines that will be hydro-tested.

3

Drains are provided wherever liquid stagnation can occur in the lines e.g. downstream of a check valve.

4

Adequate pipe spool lengths are provided for wafer type butterfly and check valves to prevent the interference of the valve disc with adjacent piping items.

5

The platform/grade/building wall/dyke or bund wall/floor penetrations and limits of road crossings are properly shown wherever applicable.

6

The insulation limits are specified appropriately (esp. for personal protection)

7

The electrical tracing requirement and its limits are specified appropriately.

8

The wrapping and coating requirement and its limits are specified appropriately for u/g lines.

9

Minimum distance between welds is 50mm or five times the wall thickness whichever is greater, unless otherwise indicated in Project specifications.

10

Unions are provided in galvanized piping where threaded in-line items need to be removed for maintenance. Also, unions are provided at regular intervals (e.g. 24m) in straight pipe runs.

11

Full couplings are provided where applicable for small bore piping.

12

For piping below 2”, WN flanges are not directly welded to SW fittings. Also, PE pipes are not directly welded with swaged reducers (couplings are used in between).

13

Appropriate break-up flanges are provided in piping with internal lining and hot-dip galvanized piping (based on tub size). Spool configuration is made with one elbow or one tee only to ensure proper galvanizing.

14

Lifting lugs are provided for removable spools wherever required as per project requirements.

15

There is adequate clearance between pipe and the adjacent piping component (e.g. flange, drain valve) to allow for flange bolt removal, valve operation, etc.

16

The valve stem orientation angle is indicated wherever the stem is not in the vertical and horizontal planes.

17

The piping interfaces with equipment/package nozzles/terminal points are checked (w.r.t. size, rating,

flange face type and nozzle/TP nos.). 18

The straight length requirement for suction & discharge piping for compressors and certain pumps is as required by Vendor/project specs.

19

Straight lengths and branch configuration of upstream/downstream lines for anti-surge valves is as per Compressor Vendor’s recommendation.

20

The F/F dimensions of all valves, special items and in-line instrument items are as per approved vendor drawings.

21

The instrument connections are checked with Piping-Instrument interface drawings/Instrument hook-up drawings.

22

The rotameters are installed in vertical run with flow in upward direction.

23

The orifice tapping orientation is done considering liquid or gas flow as applicable and the BOM is as per the piping-instrument interface diagram.

24

The straight length requirement (u/s & d/s) has been provided for flow meters (e.g. flow orifices, flow nozzles, venture meters) and is as per Project standards/Vendor requirements.

25

The line configuration for lines containing magnetic flowmeters or vortex type flowmeters is such that they are always flooded.

26

Line configuration allows easy removal of spectacle blinds/spacers & blinds and valves in case of RTJ flange ts.

27

Flanged spools are provided in the case of conical strainers to enable removal.

28

Orientation of valve handwheel / lever is checked in model for proper access and commented accordingly

29

Line routing is visually checked in model for general requirement like access to in line items, ing, clearances, obstructions, consistency and aesthetic requirement, etc.

30

Branches like drains, drip legs, etc. are located with sufficient clearance from the s, steel or other obstructions so that they do not clash during expansion/contraction.

31

Drip leg size and dimension is checked with Standard drawing for steam lines.

32

Requirement of Weep holes for atm vent lines is indicated.

DRAFTING RELATED 33

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

34

The isometric numbering is as per the approved project format and the line number matches with isometric number.

35

The correct isometric revision number is mentioned in the title block.

36

Pipe class printed at the bottom of the drawing matches with that in the line number.

37

Line data (e.g. process parameters, P&ID no., PWHT & testing requirements, insulation & painting specs, etc.) match with the Line List, if given in the isometric

38

Applicable reference documents (e.g. Line List, Isometric Index, Pipe s Spec, etc.) are mentioned.

39

Data such as inch-dia, etc. appear at the bottom of the isometric.

40

The “Cont. on …” description correctly appears at each end of the line isometric which is continued in another sheet.

41

The isometric print is readable (if required, the isometric should be split into more sheets).

42

Isometric number change is made preferably at a flange t/valve (not at a weld t).

43

Dimensions and elevations are adequately given. At least one elevation is mentioned and WP elevations for sloped lines are marked.

44

There are no HOLDs in the isometric (issue of any isometrics with HOLD requires approval by HOD/PEM).