Piping Design Procedure

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Customer:

ESSO EXPLORATION AND PRODUCTION NIGERIA LIMITED

Contractor:

BOS

Subcontractor:

ERHA DEVELOPMENT PROJECT EPC1 – FPSO

Customer's contract No.:

C 51562

Product: Type of document:

PROCEDURE

Contractor's document identification: Other identification:

Codes : Rev.

T 1 2 2 0 1 0 1 0 0 L Z P 0 5 . 8 1 8 0 0 1 1 B

Path\File name\Initials: Document title:

PIPING DESIGN PROCEDURE

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B

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N G 0 1 - B O E - P

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CHANGE RECORD PAGE

REVISION DESCRIPTION OF REVISION

A First issue

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REVISION TABLE

PAGE REVISION PAGE REVISION APPENDIX REVISION

A A 1 X 28 X A 2 X 27 X B 3 X 28 X C 4 X 29 X D 5 X 30 X E 6 X 31 X F 7 X 32 X G 8 X 33 X H 9 X 34 X I 10 X 35 X J 11 X 36 X K 12 X 37 X L 13 X 38 X M 14 X 39 X 15 X 40 X 16 X 41 X 17 X 42 18 X 43 19 X 44 20 X 45 21 X 46 22 X 47 23 X 48 24 X 49 25 X 50

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TABLE OF CONTENTS 1. PURPOSE...6 2. UNIT OF MEASUREMENT...6 3. TOPSIDES ARRANGEMENT...6 3.1. Pipe racks...6 3.2. Modules...10 4. PIPING ARRANGEMENT...12 4.1. General...12 4.2. Piping Connections:...13 5. VALVES ARRANGEMENT ...14 6. HEAT EXCHANGERS...14 7. INSTRUMENT PIPING...14 8. RELIEF VALVES...14 9. PUMPS...15 10. STRAINERS...15 11. PACKAGES...16

12. EQUIPMENT ACCESS AND REMOVAL MATERIALS HANDLING REPORTS...16

12.1. General maintenance considerations...16

12.2. Lifting points...17

12.3. Chains hoists and cable pullers...17

12.4. Hydraulic boom hoists...17

12.5. Vertical Access...17

13. INSULATION...37

13.1. Insulation Thickness for personnel protection...37

13.2. Hot insulation thickness requirements...38

14. PIPING SPACING TABLES...39

PIPING SPACING TABLES...40

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1. PURPOSE.

This procedure define the piping layout rules following standards, specifications, procedures and usual practices for the details engineering studies.

This procedure must be read jointly with :

PIPING SYSTEM DESIGN – EMDC-EDE-G-LS-0612.2001

2. UNIT OF MEASUREMENT

See EMDC-BRE-G-ZS-0115.1001. Main units used for piping :

International system. - Length – millimetres: mm - Area – m2 - Weigh - kilogram : kg - Time - second : s - Force - Newton.: N

- Pressure – Bar ( bara-bar absolute; barg-bar gauge ) - Angle – degree : deg.

3. TOPSIDES ARRANGEMENT.

Topsides level EL106000.

Deck hull - RGF Datum Level : EL100000 ( Reference DOC T122010-100-ZZG-05.81-80011).

See figure 2.0

3.1. Pipe racks.

3.1.1. 5 levels are defined.

• Level 1 – TOS EL 111000

Level 1 to 4 are provided for the pipe routing.

Level 5 is provided for equipment (air coolers, etc…) and cables trays, (electrical and main instrumentation.)

3.1.2. Pipe rack width from files axis is 9m. 3.1.3. Intermediate levels.

Intermediate levels are installed on files of pipe rack to support pipes going out the pipe rack into the modules.

4 intermediate levels are defined.

• TOS EL112200 • TOS EL115200 • TOS EL118200 • TOS EL121200 3.1.4. Access. Forklift truck.

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North/south piperacks to have adequate clearance underneath to allow Forklift truck to operate between North end of the pipe rack and South workshop.

Allocated clearance under piperacks:

• Width : 4m.

• Hight : 4m. Walkways.

Walkways are located on level 5 of the pipe rack to access on equipments and main cables trays.

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3.2. Modules.

See figures 2.A &2.B.. 3.2.1. Modules decks levels.

Modules levels on intermediate and upper decks are defined in the space allowable between piperacks intermediate levels and bottom of steel structure beams of piperack levels 1 to 4.

4 decks are defined :

• Topsides decks

• Intermediate decks

• Mezzanine deck (if any).

• Upper decks. Levels decks on modules : See figure 2A.

3.2.2. Modules layout

Modules layout design has to be defined following these steps :

• Equipment and packages layout position.

• Safety escape route. (in accordance with Safety requirement ).

• Platform access to equipment.

• Laydown area and removal material.

• Piping routing/flexibility.

• Secondary steel structure to support piping layers.

• Piping supports. 3.2.3. Module typical arrangement.

Typical arrangement between two decks in modules.

• Top of the deck. - Cables trays area :

Cables trays are installed 0.5 m under the main steel structure. - Piping area.

2 levels are installed :

1. First level of piping layer is installed at 1,5 m under the main steel structure.

2. Second level of piping layer is installed 2,5 m under the main steel structure.

• Bottom of the deck. - Piping area.

BOP or BOS (bottom of shoe) for piping routing will be located at 600mm above decks in modules.(See Fig 2.0).

Arrangement between decks and piperacks.

• Hoppers, 2m width, are opened through each level of deck for vertical piping lines routing between piperacks and modules. These hoppers are used also for cables trays coming from top level of the piperacks to LER ( local electrical room ) located on modules.

• Cables trays are installed along vertical beams of the piperacks. 3.2.4. Arrangement under topsides.

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Typical lines : Drains lines.

• Slope : 1/100 from AFT to FORE. (10mm/m).

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4. PIPING ARRANGEMENT. 4.1. General.

All piping shall be arranged neatly and simply and whenever possible shall be supported from below.

Sufficient clearances shall be provided for operating access, maintenance and removal of parts and instruments, equipment and machinery.

Horizontal piping shall run in perpendicular directions and parallel with main axes of the module and with pipe bottom at different elevations. Changes in directions and elevations shall normally be at 90-degree angles.

Minimum vertical clearances between top of floor plate and the bottom of the piping, insulation, or support beam (whichever controls) are as follows:

Location Minimum Clearance Above floor plate 7 ft., 6 in.(3.7m)

Valves in horizontal lines shall be installed with the stems oriented as follows (in order of preference):

• Vertical upward

• Horizontal (required for chain operation or to prevent stem leakage running into insulation)

• Upward at 45 degrees

Liquid traps shall not be allowed in flare relief piping or in other low pressure low gas velocity applications.

Drains lines and flare lines.

1. Slope : 1/100 from AFT to FORE. (10mm/m). 2. Slope : 1/33 from FORE to AFT. (30mm/m).

Vent or drain valve shall be furnished for pressure release between two block valves, or a block and a check valve that are not adjacent.

Threaded connections to machinery shall be minimized. Screwed piping shall be assembled with sufficient unions to allow disassembly for maintenance. No unions shall be installed between a vessel and the first block valve. Screwed connections shall be minimized between equipment and the first block valve.

Piping shall be supported so that equipment may be removed without the need for temporary piping support, and it shall be anchored or supported to eliminate excessive stress on equipment flanges.

All control valves and other in-line instruments shall be located in piping where they are readily accessible for operation and maintenance.

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Drain and vent valves shall be installed to facilitate hydrotesting and purging. Dead end stubs are prohibited.

For vent and drain valves in vibrating service, and when available for the line class specifications, use extended body gate valves in lieu of nipple and valve. Brace with gussets in 2 places, 90o_{apart. Gussets shall be made from 1" wide by 1/4" thick plate.}

A drain valve shall be installed on each header and on any lead lines that create liquid traps.

4.2. Piping Connections:

Couplings and nozzles directly attached to equipment are part of the equipment and are covered in the equipment specifications. This section covers piping connections, and piping from the equipment coupling outward.

All steam, instrument air, and fuel gas take-off connections shall be from the top of the supply header.

When possible, nipples directly connected to machinery or other location subject to vibration should be avoided. Use of heavy wall API 602 (with bolted bonnets) male-female valves should be considered as an alternative. When unavoidable, use XXS pipe nipples between the valve and the machine and provide a gusset connection in 2 planes 90° apart, of 1" x 1/4" plate.

All thread or close nipples shall not be used. A close nipple is defined as one whose unthreaded length is less than the O.D of the pipe.

Piping 1-1/2” and smaller for hydrocarbon or utility service in CL 150 through 1500 or Glycol/Hot Oil service shall be socketweld. All piping in ASME CL 2500 and all API classes shall be buttweld.

Piping 2” and larger shall be of buttweld and flanged construction. The number of flanges should be kept to a minimum and where practical welded connections shall be used.

Pipe unions between process vessels or equipment and the first block valve are

prohibited.

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5. VALVES ARRANGEMENT

Chain operator: location and orientation of valves in the line shall be such as to permit them to be readily operable and maintainable. If the center of a valve handwheel, or the stem of a frequently used wrench operated plug valve, is more than 7 ft.(2.1m) above grade or platform, the valve shall have a remote operating device (e.g., chainwheel, chain wrench, or extension stem). Integral chain wheels are preferred; however, when ordered separately, the clamp-on wheels with U-bolts shall be used.

If valve is frequently operated and located 6 to 7 feet (1.8m to 2.1m) above grade or platform, a small access platform shall be provided.

The impact type chain wheel complete with chain guide shall be used when high closing forces are required.

Valve handling.

Provide clearance lifting area above heavy valves for handling.

By pass on control valves manifold will be designed outside of vertical axis of valves.

6. HEAT EXCHANGERS

Exchangers referred to in this specification include all shell and tube, double pipe, plate fin type and air cooled heat exchangers.

Heat exchanger piping shall be arranged so that channel covers and tube bundles may be removed without temporary pipe supports or disassembly of the piping.

Multi-unit exchangers shall be arranged and provided with valves so that any one unit or bank can be removed from service for maintenance or repair.

7. INSTRUMENT PIPING

Each instrument process sensing connection shall have a valve located as close to the vessel or line connection as possible.

Instruments installation are defined on piping typical arrangement book

8. RELIEF VALVES

Discharge from relief valves on liquid or heavier than air vapors and toxic gases shall be located so that they can be piped to a closed flare header and arranged to discharge downwards into the header with all piping sloped to avoid liquid traps.

Relief valves vented to the atmosphere shall have vent stacks extended vertically a minimum of one foot (305mm) above the top of adjacent vessels, building eave, piping or operating height, whichever is highest.

All relief valves with open stacks shall be provided with a drain in the low point of the discharge piping. Drains on relief valve piping should be piped such that the exhaust through the drain hole does not impinge on vessels, piping, other equipment or personnel.

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Thrust generated when relief valves are discharging gas will be taken into account when designing piping support.

Relief valves protecting a vessel shall be connected between the vessel inlet and the mist eliminator or installed on the inlet piping.

In areas where access is difficult, davits shall be provided for lifting relief valves installed over 6 feet (1.8m) above ground level or weighing over 50 pounds.(23kgs).

Inlet block valves shall be provided for all relief valves (except steam generators). Outlet block valves are required if the relief valve is connected to the flare system. Inlet and outlet block valves are to be full opening.

Where relief valve inlet block valves are provided for equipment isolation, a bleed ring with a valve shall be provided for testing purposes.

9. PUMPS

Pumps shall be piped to require a minimum number of disconnection to remove the pump from its base or to remove parts from the pump. Piping that must be removed for pump maintenance shall be fabricated into flanged spools for easy handling.

All pumps shall be equipped with drain valves installed at the bottom of the manifolds or at a point that permits complete liquid removal.

Temporary basket type start-up strainers shall be installed with the cone point upstream at the suction to pumps without permanent strainers to prevent entry of trash, scale, dirt, etc., during initial operations. Provision shall be made for easy screen removal.

Piping must be routed and supported to prevent application of excessive moments and forces to pump connections. Adjustable supports shall be provided and shall be anchored to the pump base.

Reductions in pump suction line size shall be made with concentric reducers if line is vertical. Reducers in horizontal runs shall be eccentric with the flat side up.

For vent and drain valves in vibrating service, and when available for the line class specifications, use extended body gate valves in lieu of nipple and valve Brace with gussets in 2 places, 90o_{apart. Gusset shall be made from 1" wide by 1/4" thick plate.}

For centrifugal pumps working parallel piping shall be symmetrical.

10. STRAINERS

This section covers the design, material and installation of temporary and permanent strainers for the protection of mechanical equipment.

Temporary strainers shall be provided as follows when permanent strainers are not required:

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In the suction lines of all pumps for protection during the flushing and start-up period of new and repiped units.

Strainers shall be installed between the pump suction flange and the block valve. In a horizontal section of suction lines to all gas compressors.

Temporary strainers for pumps shall be of the basket type. The open area shall be a minimum of 150% cross-sectional area of the pipe. Screen shall be a minimum of 20x20 mesh.

For reciprocating compressors, screen shall be 40x40 mesh, and for Centrifugal compressors 20 mesh. Both shall be mounted on a conical basket or perforated plate. Strainer open area shall be at least 150% of the compressor inlet opening.

Strainers shall be mounted in an easily removable pipe spool.

Crosses, tees, or wye pieces shall be used in centrifugal compressor suction lines to permit removal and insertion of strainers without any disturbance to suction line piping. Screens may be 20 mesh.

Tabs shall be provided on temporary strainers to protrude from the holding pipe flanges to indicate the presence of the strainer.

Permanent strainers shall be designed as specified on the equipment data sheet.

All permanent strainers shall be designed for cleaning without removing the strainer body from the line. Y-types for NPS 1-1/2 and smaller, and bucket types for large volumes.

11. PACKAGES

Packages are located in modules on a datum point with coordonates X,Y,Z.

The packages are defined like volume, faces of these volumes are batteries limit connection with pipe lines in the module. Layout leader has to define the piping face connection requested to the supplier.

Connection between lines in packages and lines in modules are listed on Package piping connection sheet (from equipment department), with the following data :

• Nozzle designation.

• Nozzle diameter and rating.

• Nozzle location X,Y,Z.

12. EQUIPMENT ACCESS AND REMOVAL MATERIALS HANDLING REPORTS. 12.1. General maintenance considerations.

Ensure minimum head clearance above platforms, walkways, and gantrys of at least 2.3m. Provide at least 3.7m width and vertical clearance under overhead pipe runs, cabletrays, etc ..to facilitate access by maintenance equipment.

Provide a minimum access width for a corridor route of 760mm besed on a single fully clothed man gaining access.

Provide two exits, doors or kick out panels. Locate these that is possible to get out from either side of compressor/drivers.

For initial layout development , a suitable open perimeter of 0.9m to 1.5m around vessel and heat exchanger footprints should be reserved for instrument, piping access and visual inspection.

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Aisle ways between equipment are designated for maintenance access, and are a minimum of 1.22m wide to allow passage of a cart or dolly.

12.2. Lifting points

Lifting points to be provided for the connection of temporary lifting equipment above all equipments that contains components weighing over 25kgs (e.g applicable : pump, motor, heat exchangers bundles,pipeline pigs, reliefs valves, control valves, spectacle blinds.) Provide lifting padeyes for component weighing over 68kgs.

Provide access to the pumps by over head crane, local permanent hoist, or lifting beam plus portable crane, forlift truck, or trolley.

12.3. Chains hoists and cable pullers.

In general, chains hoists will be of 3 tons or less capacity and "come-a-longs"( tire-fort) will be of 1 metric ton or less capacity.

12.4. Hydraulic boom hoists.

At least one wheeled hydraulic boom hoist capable of lifting 1350kgs will be provided to permit extended reach into area overhead obstruction.

12.5. Vertical Access

Provide either stairs, ladders, or ramps whenever personnel must abruptly change elevation by more than 305 mm (12 in.).

Selection between stairs, ladders, or ramps is primarily based on the preferred angle of elevation (see Figure 11-5.1 for guidance). Other factors to consider are the type, direction, and frequency of traffic, clearance required, and applied loading. Note: Ensure local

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12.5.1. Preferred Structure for Angle of Incline (Adapted from Woodson, Tillman and Tillman 1992) FIGURE 11.5.1

Where bulky or heavy loads must be carried by hand, ramps or elevators should be provided as a means of ascent. Ladders should not be chosen since both hands should be free to grasp the ladder. Ladders and stairs should not be used when hand carrying of bulky loads or loads in excess of 13 kg (29 lb.) are required.

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12.5.2. Stairs

Ensure stair dimensions are in accordance with Figure 11.5.2. Long flights of stairs should be avoided. Provide landings every 10 to 12 treads and at every floor. Treads should be open unless screens or kickplates are required to protect personnel or equipment under the stairs.

Recommended Stair Dimensions (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

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12.5.3. Ladders

Ensure stair ladder dimensions (between 50° and 75°) are in accordance with Figure 11.5.3 and are equipped with flat treads and hand rails.

Stair Ladder Dimensions (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

FIGURE 11.5.3

*Whenever the distance D is less than 74 in. (1880 mm) the overhead obstruction should be painted with yellow and black stripes.

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Provide an open tread rise at the rear.

Provide a safety screen behind open stairs and at landings (see Figure 11.5.3bis) to prevent equipment or personnel falling. Note: Safety screens prevent tools/equipment

which are placed on the floor while work is carried out from being inadvertently knocked off a landing onto operators or plant below.

FIGURE 11.5.3bis

Examples of Safety Screens

Where possible, provide safety rails on open landings. Where possible, provide a non-skid tread surface on ladders.

Replace treads with rungs and remove handrails when the angle of the ladder exceeds 75 degrees.

Ensure vertical ladders (angle greater than 75 degrees) dimensions are in accordance with Figure 11.5.3.

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12.5.4. Vertical Ladder Dimensions (Adapted from Woodson, Tillman and Tillman 1992) FIGURE 11.5.4bis

Do not use ladders where frequent access is required, when carrying large heavy items or as emergency routes.

Where possible, specify that vertical ladders which are used to provide access to multiple levels should be offset at each successive level.

Provide, as a minimum, guard-rails (e.g. self closing, lift up rails or swing gate) at the top entrance of each vertical ladder in order to stop people from falling down.

Provide cages, wells, or other safety devices for fixed vertical ladders over 3.65m (12 ft) long. Cage dimensions should be as shown in Figure 11.5.4bis.

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FIGURE 11.5.4bis

Ensure the cage extends 1.1m (43 in.) above the top of the landing unless alternative protection is provided.

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12.5.5. Ramps

Ensure ramp dimensions are in accordance with Figure 11.5.5.

FIGURE 11.5.5

Provide ramps with non-skid surfaces.

Prevent ramps extending further than 9.2m (30 ft) by inserting an intermediate level. Provide flat platforms at the bottom of the ramp and at any point at which the ramp system changes direction. See Figure 11.5.5bis.

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FIGURE 11.5.5bis

12.5.6. Elevators

Provide elevators where large heavy items of equipment need to be moved vertically through the installation.

Provide communication equipment and escape provisions should personnel become trapped within the elevator.

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12.5.7. Toe and Hand Holds

Provide formal access for personnel reaching overhead equipment or accessing equipment requiring maintenance, so that installed equipment is not stood on or used as hand holds or foot holds which may lead to equipment damage and loss of balance and falls.

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12.5.8. Portable Ladders

Ensure the maximum lengths for portable metal ladders are in accordance with Table 11.5.8.

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12.5.9. Figures and tables

Table Mobile Workspace Dimensions (Based on American Society for Testing Materials (ASTM) 1988)

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Figure 11.5.9 Workspace Dimensions (Based on American Society for Testing Materials (ASTM) 1988)

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Figure 11.5.10 Visual Cone (Adopted from Woodson 1991)

Figure 11.5.11 Vertical Viewing Angles (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

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Figure 11.5.12 Horizontal Viewing Angles (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

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Table 11.5.13 Horizontal Reach Dimensions (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

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Figure 11.5.14 Functional Reach from a Ladder (Adapted from Woodson, Tillman and Tillman 1992)

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Figure 11.5.15 Examples of Rim Style

Table 11.5.16 Handwheel Forces

HANDWHEEL DIAMETER

SMALL 150-180 MM (6-7 IN.) 22 N (5 LB.)

LARGE 455-485 MM (18-19 IN.) 220 N (50 LB.)

Note: These figures represent the maximum forces which can be applied in ideal conditions. Where conditions are less than optimum, forces should be replaced.

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Figure 11.5.17 Hand Crank Force Limits (Wooeson, W.E. Tillman, B., and Tillman, P., Human Factors Design Handbook, McGraw-Hill, 1992, Reproduces with Permission)

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Figure 11.5.18 Lever Force Limits

Figure 11.5.19 Recommended Mounting Heights for Valve Handwheels (Reprinted, with permission, from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohock, PA 19428-2959)

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13. INSULATION.

Value indicated in the tables1 and 2 below are temporary and for piping studies only . Final values will be defined by insulation specification.

13.1. Insulation Thickness for personnel protection. TABLE 1

Lines and Vessels Using Mineral Fiber or Calcium Silicate Insulation with Aluminum Jacketing

Table Based on Temperature of 34°C (93°F), and 4.5 MPH Wind Speed Table To Be Used When Average Yearly Temperature is 21°C (70°F)

Maximum Fluid Temperature (°C) to Keep Exposed Surface Temperature Below 71°C (160°F)

Insulation Thickness, Inches Pipe Diam. Inches 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 1.0 460 600 677 - - - - - - - - - -1.5 390 515 621 677 - - - - - - - - -2.0 370 482 585 677 - - - - - - - - -2.5 349 457 556 646 3.0 333 435 530 614 4.0 306 408 493 574 6.0 279 366 445 518 8.0 262 342 416 483 10.0 249 325 392 457 12.0 239 310 377 438 14.0 233 302 369 429 16.0 228 293 357 414 18.0 221 286 345 402 20.0 218 279 338 393 24.0 208 268 324 377 30.0 200 256 307 358 36.0 193 247 295 345 Vessels* 140 173 200 229 • To be used for vessel sizes above 36”.

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13.2. Hot insulation thickness requirements. TABLE 2

Lines and Vessels Using Calcium Silicate Insulation with Aluminum Jacketing Economic Thickness Based on $3.00/MBtu Fuel Gas(2)

Optimal Maximum Temperature for Specified Thickness, °C(1)

Insulation Thickness, Inches Pipe Diam. Inche s 0. 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 0.5 27 27 143 330 566 649 - - - - - - - -1.0 26 27 129 299 514 649 - - - - - - - -1.5 24 34 105 225 385 575 649 - - - - - - -2.0 23 36 98 202 346 518 649 - - - - - - -2.5 23 42 92 186 316 471 649 - - - - - - -3.0 21 44 87 171 288 427 590 649 - - - - - -4.0 21 33 83 154 255 379 524 649 - - - - - -6.0 21 36 77 136 216 317 435 568 8.0 21 37 74 125 195 283 386 505 10.0 21 39 72 118 179 260 351 457 12.0 21 41 71 113 171 243 330 425 14.0 21 42 71 111 167 236 317 408 16.0 21 43 70 109 160 225 302 388 18.0 21 44 70 107 156 218 289 371 20.0 21 44 69 105 151 210 280 357 24.0 21 45 68 102 145 200 264 337 30.0 21 46 68 100 140 190 249 315 36.0 21 46 70 98 136 184 238 299 Vesse ls* 21 52 72 114 125 156 191 228

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14. PIPING SPACING TABLES OD.FLANGE 25 25 OD.FLANGE DN " 1 2 3 4 6 8 10 12 14 16 18 20 24 DN " DN 25 50 80 100 150 200 250 300 350 400 450 500 600 E E 1 25 105 125 145 170 200 230 265 300 335 365 395 430 500 2 50 140 160 180 215 245 275 315 345 380 410 445 510 3 80 175 195 230 260 290 330 360 395 425 455 525 4 100 210 240 275 305 345 375 405 440 470 540 OD + od 6 150 270 300 330 370 400 435 465 495 565 2 8 200 325 355 395 425 460 490 520 590 10 250 385 420 455 485 515 550 620 E = SPACING 12 300 450 480 510 545 575 645 14 350 495 525 560 590 660 OD = OUTSIDE DIAMETER 16 400 550 585 615 685 18 450 610 640 710 20 500 665 735 24 600 785 NOTES:

Minimum spacings are calculated w ith a space of 25mm betw een flange & pipe (included insulation thickness if any) In case of orifice flange see posibility if pressure connection mounting.

DN " 1 2 3 4 6 8 10 12 14 16 18 20 24 DN " DN mm 25 50 80 100 150 200 250 300 350 400 450 500 600 1 25 115 150 160 190 230 275 315 345 360 395 435 470 560 2 50 165 175 200 245 290 330 360 375 410 450 485 575 3 80 190 215 260 305 345 375 390 420 465 500 590 4 100 230 275 315 355 385 405 435 475 510 605 6 150 300 345 380 415 430 460 505 540 630 8 200 370 410 440 455 485 530 565 655 10 250 435 465 480 515 555 590 680 12 300 490 505 540 580 615 705 14 350 525 555 595 630 725 16 400 580 620 655 750 18 450 645 680 775 20 500 710 800 24 600 850 600# & 900# E = (+) 25 od P IPE 150# & 300#

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PIPING SPACING TABLES OD.FLANGE 25 25 OD.FLANGE DN " 1 2 3 4 6 8 10 12 14 16 18 20 24 DN " DN mm 25 50 80 100 150 200 250 300 350 400 450 500 600 E E 1 25 115 150 160 190 230 275 315 345 360 395 435 470 560 2 50 165 175 200 245 290 330 360 375 410 450 485 575 3 80 190 215 260 305 345 375 390 420 465 500 590 4 100 230 275 315 355 385 405 435 475 510 605 OD + od 6 150 300 345 380 415 430 460 505 540 630 2 8 200 370 410 440 455 485 530 565 655 10 250 435 465 480 515 555 590 680 12 300 490 505 540 580 615 705 E = SPACING 14 350 525 555 595 630 725 16 400 580 620 655 750 OD = OUTSIDE DIAMETER 18 450 645 680 775 20 500 710 800 24 600 915 NOTES:

Minimum spacings are calculated w ith a space of 25mm betw een flange* & pipe (included insulation

thickness if any) In case of orifice flange see DN " 1 2 3 4 6 8 10 12 14 16 18 20 24 posibility if pressure connection mounting. DN " DN mm 25 50 80 100 150 200 250 300 350 400 450 500 600 1 25 125 160 195 220 285 320 380 425 470 515 575 640 745 2 50 175 210 235 300 330 395 435 480 530 590 655 760 3 80 225 250 315 345 410 450 495 545 605 670 775 * Flange or body valve for 2500# above 12". 4 100 260 325 360 420 465 510 555 615 680 785 to be checked w ith valves supplier. 6 150 350 385 450 490 535 585 645 710 815 8 200 410 475 515 560 610 670 735 840 10 250 500 545 590 635 695 760 865 12 300 570 615 660 720 785 890 14 350 630 675 735 800 910 16 400 700 760 825 930 18 450 790 850 960 20 500 875 985 24 600 1035 2500# E = (+) 25 od P IPE 1500#

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15. REFERENCE DOCUMENTS

EXXON DOCUMENTS.

• Drafting standards.

EMDC EDE G ZS 0122.1001

• Equipment access and removal FPSO materials handling report. NG01 BRE P LR 0191.8002

• Facilities layout and general operational & Safety systems. EMDC EDE G ZS 0182.2001

• Common requirements & Specifications for production facilities. EMDC EDE G ZS 0602.1001.

• Topsides to hull TIE IN list NGO1.BRE.P.LL.0169.8001

• Numerical index for EMRE international practices. EMCD.EDE.G.ZS.0012.0002

• Unit of measurement. EMDC.BRE.G.ZS.0115.1001

• General valves specification. EMDC.BRE.G.LS.0614.3001

• Insulation.

EMDC.EDE.G.LS.0615.4001.

• Corrosion protection and monitoring. EMDC.EDE.G.MS.0260.2001

• Composite piping in offshore fire water and seawater service. EMDC.EDE.G.LS.0612.1001

• Piping material classes. EMDC.BRE.G.LS.0614.3100

• Upstream identification of components, devices, lines, and valves. NGER-EDE-05-ZS-121-00.0002

• Piping requirement for packaged equipment EMDC-BRE-G-LS-0613.3001

• Bridge crane and miscellananeous material handling equipment EMDC-EDE-G-RS-0470.3031

• Piping systems design EMDC-EDE-G-LS-0612.2001

• Relief, Flare, vent and hydrocarbon drain systems EMDC-EDE-G-PS-0690.2001

• General valves specification EMDC-BRE-G-LS-0614.3001

• Painting and protective coating EMDC-EDE-G-MS-0262.4007

• Pig launchers and receivers EMDC-EDE-G-RS-603.3015 CONTRACTOR DOCUMENTS.

• Piping line list.

NGO1.BOE.P.LL.0100.8002

• Critical line list.

NGO1.BOE.P.LL.0100.8003

• Manual valve list.

NGO1.BOE.P.LL.0100.8005

(42)

NGO1.BOE.P.LL.0100.8006

• 3D PDMS procedure.

NGO1.BOE.P.LP.0100.8003/4/5/6/7.

• Supporting design philosophy. NGO1.BOE.P.LQ.0100.0001A

• Standard pipe supports. NGO1.BOE.P.LQ.0100.0002A

• Piping Stress analysis criteria NG01.BOE.P.LS.0135.1002

• Piping Stress analysis philosophy NG01.BOE.P.LP.0100.8008

• 3D CAD Set up general coordination procedure NG01-BOE-G-ZP-0100-8011