Column Piping

TRAINING MANUAL- PIPING

PIPING STUDYCOLUMN PIPING

Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

Page : 1

CONTENTS

Page

0.0 Cover Sheet 1

List of drawings 2 - 3

1.0 Introduction 4

2.0 Distillation 4 - 6

3.0 Required Information 6 - 7

4.0 Sequence of column Piping Study 7 - 9

5.0 Nozzle Orientation and Level 9 - 10

6.0 Access and Maintenance Facility 10

7.0 Platforms and Ladders 11

Applicable Revision:Prepared:

Date:

Checked:

Date:

Approved:

Date:First Edition: R0Prepared: AKB

Date:

Checked: TNG

Date:

Approved: RUD

Date:File Name: LB1003 Server: PUNE: KUMUS 207 VKO: KUMUS 209



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

Page : 2

LIST OF ILLUSTRATIONSSR.NO. DWG.NO. DESCRIPTION

1 CLP1 SCHEMATIC - PROCESS OF DISTILLATION TOWER

2 CLP2 CRUDE DISTILLATION OF PRODUCTS ACROSSTEMPERATURE RANGE

3 CLP3 FLOW DIAGRAM OF ABSORPTION-STRIPPING SYSTEMFOR HYDROCARBON RECOVERY FROM GASEOUSMIXTURE

4 CLP4 SCHEMATIC PROCESS OF FRACTIONATION TOWER

5 CLP5 VACUUM TOWER & STRIPPER

6 CLP6 TRAYED TOWER

7 CLP7 PACKED TOWER

8 CLP8 COUNTER FLOW (SIEVE & VALVE PLATE DISPERSORS)

9 CLP9 CROSS FLOW - TRAY DETAILS

10 CLP10 TRAY TYPES BY LIQUID PATHS

11 CLP11 PROCESS FLOW DIAGRAM IN TOWER AREA

12 CLP12 SAMPLE PIPING AND INSTRUMENTATION DIAGRAMAROUND A COLUMN

13 CLP13 EVALUATION OF THE FLOW DIAGRAM FOR ADISTILATION COLUMN TO VISUALISE AN ORDERLYARRANGEMENT OF PIPING

14 CLP14 TYPICAL PIPIERACK CROSS-SECTION OF A TOWERAREA

15 CLP15 TYPICAL NOZZLE LOCATION AND PLATFORMELEVATIONS

16 CLP16 PLATFORM WIDTH REQUIREMENTS

17 CLP17 TYPICAL PLATFORM ORIENTATION

18 CLP18 DETAILS OF CIRCULAR PLATFORM BRACKET SPACINGS

19 CLP19 TOWER PLATFORM AND LADDER ELEVATIONREQUIREMENTS

20 CLP20 TYPICAL PLATFORM ARRANGEMENT

21 CLP21 DETAILS OF A TYPICAL DISTILLATION COLUMN

22 CLP22 DETAILS OF TOWER SKIRT

23 CLP23 TYPICAL TOWER AREA DIVISION FOR VARIOUSFACILITIES

24 CLP24 TYPICAL TOWER PIPING SUPPORT

25 CLP25 TYPICAL ARRANGEMENT OF EXTERNAL PIPING AROUNDCOLUMN

26 CLP26 TYPICAL RELIEF VALVE SYSTEM OPEN AND CLOSEDSYSTEM

27 CLP27 PIPING G.A. FOR COLUMN REBOILER PUMP

28 CLP28 NOTES FOR PIPING G.A. FOR COLUMN REBOILER PUMP



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

Page : 3

SR.NO. DWG.NO. DESCRIPTION29 CLP29 TYPICAL OPERATOR ACCESS30 CLP30 NET POSITIVE SUCTION HEAD (NPSH) OF BOTTOMS

PUMP31 CLP31 TYPICAL TOWER PIPING ARRANGEMENT

32 CLP32 TYPICAL PLAN AND ELEVATION VIEW OF TOWER AREA

33 CLP33 REBOILER CONNECTION

34 CLP34 ARRANGEMENT FOR KETTLE REBOILERS

35 CLP35 TYPICAL INSTRUMENT VESSEL

36 CLP36 TYPICAL ARRANGEMENT FOR LEVEL INSTRUMENT

37 CLP37 TYPICAL TEMPERATURE AND PRESSURE INSTRUMENTNOZZLE LOCATION

38 CLP38 TYPICAL TEMPERATURE AND PRESSURE INSTRUMENTARRANGEMENTS

39 CLP39 TYPICAL COMMON BRIDLE-LEVEL INSTRUMENTARRANGEMENT

40 CLP40 TYPICAL TOWER DAVIT ARRANGEMENT

41 CLP41 TYPICAL TOWER TROLLEY BEAM ARRANGEMENT



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

Page : 4

1.0 INTRODUCTION

Piping study for the column should start after complete understanding of the followingdocument:

a) Technical specification of the columnb) P&IDc) Unit Plot Pland) Basic Engineering document highlighting the specific process requirement, platform

requirement and guidelines for the general arrangement of piping around the column.e) Details of internal arrangements e.g.

for packed type - the packing height, packing support and manhole / hand hole locations,and for tray type - the nos. of tray, type of tray, downcomer location, manhole location etc.

f) Instrument data sheet.g) Line list with operating / design conditions of the fluid.

1.1 Some understanding of the process function will facilitate the piping study to meet therequirements of operation, maintenance, safety and the aesthetics. Various types of columnwith their varying functions are in use for refinery and Petrochemical industry.

Generally they are distinguished based on the specific operation for mass transfer viz.Distillation, Absorption - stripping or Fractionation etc.

2.0 DISTILLATION

The distillation is separation of the constituents of a liquid mixture via partial vaporisation of themixture and separate recovery of vapour and residue.

Various kinds of devices called plates or trays are used to bring the two phases into intimatecontact. The trays are stacked one above the other and enclosed in a cylindrical shell to form acolumn.

The feed material, which is to be separated into fractions, is introduced at one or more pointsalong the column shell. Due to difference in gravity between liquid and vapour phases, theliquid runs down the column, cascading from tray to tray, while vapour goes up the columncontacting the liquid at each tray.

The liquid reaching the bottom of the column is partially vaporised in a heated reboiler toprovide reboil vapour , which is sent back up the column. The remainder of the bottom liquid iswithdrawn as the bottom product.

The vapour reaching the top of column is cooled and condensed to a liquid in the overheadcondenser. Part of this liquid is returned to the column as reflux to provide liquid overflow andto control the temperature of the fluids in the upper portion of the tower. The remainder of theoverhead stream is withdrawn as the overhead or distillate product.

The Typical distillation process tower is illustrated in Fig.CLP-1 and crude distillation ofproducts across temperature range is illustrated in Fig.CLP-2.



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

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2.1 ABSORPTION AND STRIPPING

Many operations in petrochemical plants require the absorption of components from gasstreams into lean oils or solvents. The resultant rich oil is then stripped or denuded of theabsorbed materials. The greatest use of this operation utilises hydrocarbon materials, but theprinciples are applicable to other systems provided adequate equilibrium data is available.

A typical flow diagram of absorption-stripping system for hydrocarbon recovery from gaseousmixture is illustrated in Fig. CLP-3.

2.2 FRACTIONATION

A fractionation column is a type of still. A simple still starts with mixed liquids, such as alcoholand water produced by fermenting grain etc. and by boiling produces a distillate in which theconcentration of alcohol is many times higher than in feed. In petroleum industry, mixtures ofnot only two but a lot many components are dealt with. Crude oil is a typical feed for afractionation column and from it, the column can form simultaneously several distillates such aswax distillate, gas oil, heating oil, naptha and fuel gas. These fractions are termed cuts.

The feed is heated in a furnace before it enters the column. As the feed enters the column,quantities of vapour are given off by flashing due to release of pressure on the feed.

As the vapours rise up the column, they come into intimate contact with down flowing liquid.During this contact, some of the heavier components of the vapour are condensed and some ofthe higher components of the down flowing liquid are vaporised. This process is termedrefluxing.

If the composition of the feed remains the same and the column is kept in steady operation, atemperature distribution establishes in the column. The temperature at any tray is the boilingpoint of the liquid on the tray. 'Cuts' are not taken from every tray. The P&ID will show cuts thatare to be made, including alternatives. Nozzles on selected trays are piped and nozzles foralternate operation are provided with line blinds or valves.

The fractionator tower is illustrated in Fig.CPL-4.

The typical vacuum tower and stripper is illustrated in Fig.CLP-5. Stripper is used to striplighter materials from bottom of a main or a vacuum tower distilling crude bottom residue undervacuum.

2.3 INTERNALS

Columns based on internal details are often called as either Plate Columns or PackedColumns.

Plate Column:The lighter hydrocarbons vaporise and flow up through the holes in the tray plate, makingcontact with the liquids on that tray.

Tray types are: Bubble Cap trays, Valve trays, Sieve trays

Bubble Cap Trays: Bubbling action effects contact. Vapour rises up through 'risers' intobubble cap, out through slots as bubbles into surrounding liquid on tray. Liquid flow over caps,outlet weir and downcomer to tray below.



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

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Valve Trays: Commonly used valve trays are stamped out by big press and these trays comewith small valves attached to them which allow vapour traffic.

Sieve Trays: Sieve trays are perforated flat plates. They are inexpensive for small diametervessels but large diameter towers must have extensive supports for these trays. Sieve traysare used for heavy hydrocarbon fractionation.

All trays have foam on top of liquid. The height of the foam will vary with the process. Foammay rise a foot or more above the tray liquid.

Liquid-gas contacting is made effective through the above trays by cross-flow or counter flow.In counter flow plates, liquid and gas utilise the same openings for flow, thus there are nodowncomers.

Perforated plate with liquid cross flow (sieve plate) is the commonly specified tray.These two types of flow is illustrated in Fig.CLP - 8.

The two most commonly used types of tower viz. the trayed and packed arrangements areillustrated in Fig.CLP-6 and Fig.CLP-7 respectively.

3.0 REQUIRED INFORMATION

The basic document listed in Cl.1.0 shall be studied thoroughly for conceptual arrangement ofpiping around a column.

3.1 The basic layout and general engineering specifications describe :• The minimum access, walkways, platforms width and headroom requirements.• Handling facilities for tower internals, manhole covers, line blinds, relief valves.• Maximum rise of ladders.• Pipe-system requirements, such as open or closed relieving systems.• Minimum line-size and required hose-stations.• Access to valves and instruments.

3.2 Design Standards show:• Details of ladder dimensions• Ladder and platform position (Step through or side step landings)• Toe-plate, handrail and safety-gate details.

3.3 P&ID and Technical specification of column provide :• Process data showing interconnected equipment and piping.• Pipe sizes and pipeline components.• Steam tracing and insulation thickness.• Tower elevations and differences in related equipment levels.

3.4 Plot Plan gives:• The physical location of a column and its relationship to other equipment.• Main access.• Main pipe run or pipe rack.• Location of pumps.

A typical cross-section of a piperack running through the tower area of a refinery type plant isillustrated in Fig.CLP-14.



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

Page : 7

A typical plan of equipments located in the refinery type of plants highlighting the maintenanceaccess is illustrated in Fig.CLP-32.

3.5 Instrument standard shows:• The location of instrument connections to tower for gauges, level controllers and level

alarms.• Location of pressure and temperature connections without orientation.• The instrumentation systems around the tower are depicted in the P&ID.

3.6 Fabrication drawing / detail dimensional drg. of column provides :• Diameter and height of column.• Details and dimensions of internals.• Manhole• Process-piping connections in elevation (without orientation)• Drum, pump, exchanger drawings giving details of adjacent process equipment or

equipment supported on column itself.

An integrated piping study should be developed from the above information.

The piping study should take care of all the general recommendations of piping arrangementaround the column and its related equipment and facilities as illustrated in Fig.CLP-25"Typical arrangement of external piping around column"

4.0 SEQUENCE OF COLUMN PIPING STUDY

4.1 All available information / data from Equipment specification and P&ID shall be written on theelevation view of the column as illustrated in Fig.CLP-12, CLP-13 & CLP-15.

4.2 The designer now starts thinking about the proper orientation of nozzles and provisions foraccess to the points of operation and maintenance.

4.3 Considerations of the pipeline leaving the tower area and the adjacent piping shall bevisualised.

4.4 The first step is to orient the manholes preferably all in same directions. Normally, manholesshall be oriented towards dropout area within a 30° segment of column as this facilitates thelowering of tower internals to the main access way. The manhole segment of platform shouldnot be occupied by any piperack.

4.5 A break in ladder rise (normal 5m, maximum 7m) will occupy another segment of column forplatform.

4.6 The levels of platforms are to be decided on the elevation view based on the manholes andaccess to relief valves, instrument for viewing.

4.7 All platform levels in the proper segments of the tower with ladder location should be drawn onplan view. The manhole shall be shown in proper segment with the angle of orientation, andthe space for the swing of manhole cover taking davit hinge as centre.

4.8 Layout should be started from the top of the column with the designer visualising the layout as awhole. There will be no difficulty in dropping large overhead line straight down the side of acolumn, and leaves the column at a high level and crosses directly to the condenser. Thisclears a segment at lower elevations for piping or for a ladder from grade level to the firstplatform.



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

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4.9 Flexibility and thermal load connected with the large-dia overhead lines to the condenser atgrade level or higher level shall be considered. The relief valve protecting the tower is usuallyconnected to the overhead line. A relief valve discharging to atmosphere should be located onthe highest tower platform.

In a closed relief-line system, the relief-valve should be located on the lowest tower platformabove the relief -system header. This will result in the shortest relief-valve discharge leads tothe flare header. The entire relief-line system should be self-draining.

4.10 From layout point of view, it is preferable to space the platform brackets on the tower equallyand to align the brackets over each other for the entire length of the tower. This will minimiseinterferences between piping and structural members.

4.11 Nozzles and piping must meet process requirements while platforms must satisfy maintenanceand operating needs. Access for tower piping, valves and instruments influence placement ofladders.

4.12 In routing pipelines, the problem is faced to interconnected tower nozzles with other remotepoints. The tentative orientation of a given tower nozzle is on the line between tower centre andthe point to which the line is supposed to run. Segments for piping going to equipment at gradee.g. condenser and reboiler lines are available between ladders and both sides of manhole.See the Fig. CLP-21 / 31 for overall orientation of a distillation column.Line approaching the yard/piperack can turn left or right depending on the overall arrangementof the plant. The respective segments of these lines are between the ladders and 180°. Thesegment at 180° is convenient for lines without valves and instruments, because this is thepoint farthest from manhole platforms.

The sequence of lines around the tower is influenced by conditions at grade level. Pipingarrangements without lines crossing over each other give a neat appearance and usually amore convenient installation.

4.13 The correct relationship between process nozzles and tower internals is very important. Anangle is usually chosen between the radial centreline of internals and tower-shell centrelines.By proper choice of this angle (usually 45° or 90° to the piperack) many hours of work andfuture inconvenience can be saved. Tower piping, simplicity of internal piping and manholesaccess into the tower are affected by this angle. After this, the information produced by thedesigner results in selecting the correct orientation of tower nozzles.

4.14 A davit usually handles heavy equipment such as large-size relief valves and large-diameterblinds. If the davit is at the top of the tower, it can also serve for lifting and lowering towerinternals to grade.Clearance for the lifting tackle to all points from which handling is required, and good accessshould be provided.

4.15 Very often, interpretation of process requirements inside a tower is more exact than for exteriorpiping design. The location of an internal part determines, within strict physical limits, thelocation of tower nozzles, instruments, piping and the steelwork. The layout designer have toconcentrate on a large-scale drawing of tower-internal details and arrangement of processpiping to finalise the piping study.

4.16 Access, whether internal or external is very important. This includes accessibility ofconnections from ladders and platforms and internal accessibility through shell manholes,handholes or removable sections of trays. A manhole openings must not be obstructed byinternal piping.



Uhde India Limited

DOC No. : 29040-PI-UPS-1003

Rev. : R0

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4.17 Reboiler-line elevations are determined by the draw off and return nozzles and their orientationis influenced by thermal flexibility considerations. Reboiler lines and the overhead lines shouldbe as simple and direct as possible.

4.18 Fig.CLP-23 shows the segments of tower circumference allotted to piping, nozzles, manholes,platform brackets and ladders as normally recommended to develop a well-designed layout.

5.0 NOZZLE ORIENTATION AND LEVEL

Nozzles are located at various levels on the tower to meet the process and intstrumentationrequirements.

5.1 MANHOLES

Nozzles are to be oriented keeping provision for maintenance and operation needs.

Manholes are usually located at bottom, top and intermediate sections of tower. Theseaccess nozzles must not be located at the downcomer sections of the tower or the seal potsections of the tower.

Where internal piping is arranged over a tray, manhole shall be provided but it should beensured that the internals do not block the maintenance access through the manhole.

Possible location of manhole and handholes within the angular limits of b° are illustrated indetail-2 of Fig.CLP-21

5.2 REBOILER CONNECTIONS

Reboiler connections are normally located at the bottom section of the tower. Detail-1 ofFig.CLP-21 shows reboiler draw-off connections for single-flow tray. This connection can bevery important for arranging tray orientation. The simplest, most economical location forreboiler connections with the alternative location within the angular limits of a° is shown. Theangle a° depends on the size of reboiler draw off nozzle and the width of the boot(dimension 'b') at the tray down flow.

The return connection from the thermosyphon reboilers is shown in detail-1 of Fig.CLP-21.These lines should be as simple and as direct as possible, consistant with the requirements ofthermal flexibility.

For horizontally mounted thermosyphon reboiler, the draw off nozzle is located just below thebottom tray and for vertically mounted recirculating thermosyphon reboiler, the draw offnozzle is located at the bottom head. For both the systems, the return nozzles are locatedjust above the liquid level as shown in Fig.CLP-33.

5.3 REFLUX CONNECTIONS

Reflux nozzles are provided with internal pipes that discharge the liquid into the sealpot of thetray below. Detail 3 of Fig.CLP-21 shows the reflux connections. Care must be taken thatthe horizontal leg of the internal pipe clears the tops of bubble caps or weirs. It must beensured that the internal pipe can be fabricated for easy removal through a manhole or canbe fabricated inside the tower shell.



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5.4 OVERHEAD CONNECTIONS

The vapour outlet nozzle is usually a vertical nozzle on the top head of tower. In addition, thevent and relief valve could be located on the top head with a typical platform arrangement foraccess to vent, instrument connections and top manhole. In a closed relief line system, reliefvalve should be located on the lowest tower platform above the relief system header. This willresult in the shortest relief valve discharge leads. The entire relief line system should be selfdraining.

5.5 BOTTOM CONNECTIONS

The liquid outlet is located on the bottom head of the tower. If the tower is supported on skirt,the nozzle is routed outside the skirt as shown in Fig.CLP-22. The elevation and orientationof this line is generally dictated by the pump NPSH requirement and the pump suction lineflexibility. (see Fig.CLP-30)

5.6 TEMPERATURE & PRESSURE INSTRUMENT CONNECTIONS / LEVEL INSTRUMENTS

The temperature and pressure instrument connections are located throughout the tower. Thetemperature probe must be located in a liquid space and the pressure connection in a vapourspace as shown in Fig.CLP 37.

The level instruments are located in the liquid section of the tower usually at the bottom. Theelevation of the nozzles is decided by the amount of liquid being controlled or measured andby standard controller and guage glass lengths. Level controllers must be operable fromgrade or platform and level guages / switches may be from a ladder if no platform is available.Fig.CLP-35, 36, 37, 38, 39 illustrates a few instrument connections on tower.

6.0 ACCESS AND MAINTENANCE FACILITY

6.1 Access whether internal or external is very important. This includes accessibility ofconnections from ladders and platforms and internal accessibility through shell manholes,handholes or removable sections of trays.

6.2 Tower maintenance is usually limited to removal of exterior items (e.g. relief or control valves)and interior components (e.g. trays or packing rings) Handling of these items is achieved byfixed devices (e.g. davits or trolley beams) or by mobile equipment (e.g. cranes). Whendavits or beams are used, they are located at the top of the tower, accessible from a platformand designed to lower the heaviest removable item to a specific drop out area at grade level.When mobile equipment is used, a clear space must be provided at the back (side opposite topiperack) of the tower that is accessible from plant auxiliary road.

Fig.CLP-16, 25, 29, 32 illustrates the access and maintenance facilities to be considered inthe piping arrangement around a tower.

On free-standing columns, access for major maintenance to insulation or painting will usuallyrequire the erection of temporary scaffolding. Space for scaffolding at grade level andprovision of cleats on the shell to facilitate scaffold erection should be considered.

6.3 Utility stations of two services viz. steam and air are usually provided on maintenance platforms.Steam and air risers should be located during piping study to keep adequate cleats for support.(see Fig.CLP-20)



Uhde India Limited

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7.0 PLATFORMS AND LADDERS

7.1 Platforms on towers are required for access to valves, instruments, blinds and maintenanceaccesses. Platforms are normally circular and supported by brackets attached to the side ofthe tower. Generally, access to platforms is by ladder. Fig.CLP-19 illustrates the platformrequirements.

7.2 Platform elevations for towers are set by the items that require operation and maintenance.The maximum ladder run should not exceed 7m.

7.3 Platform widths are dictated by operator access. The clear space on platform width shall bemin.900mm.

For platforms with control stations, the width of platform shall be 900mm plus the width ofcontrol station.

The platform for manholes and maintenance access, adequate space for swing the coverflange flange must be provided.

7.4 Top-head platforms for access to vents, instruments and relief valves are supported on headby trunions.

7.5 Access between towers may be connected by common platforming.

7.6 It is preferrable to space platform brackets on tower equally and to align brackets over eachother over the entire length of shell. This minimises the structural design and interferencesfrom piping.

7.7 On very wide platforms or those that support heavy piping loads, knee bracing is required inaddition to the usual platform steel. The potential obstruction immediately under the kneebrace must be kept in mind during platform design.

7.8 Fig.CLP 15, 16, 17, 18, 19, 20 illustrates a few platform considerations.

DOC NO.

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PageUhde India Limited

TRAINING MANUAL - PIPING

PIPING STUDY

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COLUMN PIPING

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TRAY

Vr Lr

Vs

FEED TRAY

Ls

BOTTOMS PUMP

BOTTOMS PRODUCT

DIRECT STEAM TOBOTTOMS PRODUCT

FEED

STRIPPINGSECTION

SECTIONRECTIFICATION

DISTILLATE PRODUCT

RECEIVER DRUM

VAPOUR PRODUCT

REFLUX

SCHEMATIC PROCESS OF DISTILLATION TOWER

REBOILER

DISTILLATION

CONDENSER

DOC NO.

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PIPING STUDY

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CRUDE OIL

BUTANE AND

STRAIGHT RUN

90°F

80°F-220°F(32°C-104°C)

220°F-315°F(104°C-157°C)

NAPHTHA

315°F-450°F(157°C-232°C)

KEROSENE

450°F-650°F(232°C-343°C)

LIGHT GASOIL

(343°C-427°C)650°F-800°F

OILHEAVY GAS

GASOLINE

(32°C) LIGHTER GAS

(427°C)+800°F+ STRAIGHT RUN

RESIDUE

CRUDE DISTILLATION OF PRODUCTS ACROSSTEMPERATURE RANGE

WITH THE RISE IN TEMPERATURE OF CRUDE OIL, INITIAL BOILING POINT IS REACHED.THE LIGHTEST MATERIAL, BUTANE IS PRODUCED FIRST, JUST BELOW 100°F (38°C).THE HEAVIEST MATERIALS ARE PRODUCED BELOW 800°F (427°C).THE DISTRIBUTION OF THE DIFFERENT PRODUCTS AT VARIOUS TEMPERATURE RANGESARE SHOWN ABOVE.

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123

WET

ABSORBER COOLER

LEAN OIL

RICH OIL

123

STRIPPER

STRIPPING STEAM

TO

PREHEATERCONDENSOR

RAW GASOLINE

FLOW DIAGRAM OF ABSORPTION-STRIPPING SYSTEM FORHYDROCARBON RECOVERY FROM GASEOUS MIXTURE

ABSORPTION &STRIPPING

GAS

FINISHING

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RECEIVER

CONDENSER

FEED

FURNACE

STILL-1

STILL-2

STILL-3

STILL-4

STILL-5 150°F65°C

160°F70°C

170°F75°C

180°F80°C

195°F90°C

BOTTOMS

PUMP

PRODUCT150°F(65°C)

RE

FLU

X R

ETU

RN

LIN

E

FRACTIONATION

SCHEMATIC PROCESS OF FRACTIONATION TOWER

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VACUUM TOWER & STRIPPER

VACUUM TOWER

STRIPPER

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TRAYED TOWER

OVERHEAD

BOTTOMS

LEVELINSTRUMENTS

CHIMNEY

REBOILERRETURN

DRAWOFFREBOILER

FEED

ACCESSMAINTENANCE

ACCESSMAINTENANCE

ACCESSMAINTENANCE

TRAY

REFLUX

DRAN OFF

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PACKED TOWER

GAS OUTLET

LIQUID DISTRIBUTOR

PACKING

BODY FLANGE

MAINTENANCE ACCESS (TYP)

LIQUID OUTLET

LEVEL INSTRUMENTS

GAS INLET

PACKING SUPPORT

LIQUID INLET

DOC NO.

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VAPOUR

LIQUID

VAPOUR

LIQUID

CROSS FLOW COUNTER CURRENT FLOW

GAS FLOW

VALVE OPEN

VALVE CLOSED

HOLES PUNCHED Ø2"-4"GAS FLOW

HOLES DRILLED ORPUNCHED Ø2"-4"

SIEVE PLATE DISPERSORS

VALVE PLATE DISPERSORS

COUNTER FLOW

FROTH

DOC NO.

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DOWN FLOW

CROSS FLOW REVERSE FLOW

DOUBLE PASS DOUBLE PASS CASCADE FOUR PASS

CROSS FLOW

DO

WN

CO

ME

R A

RE

A

DO

WN

CO

ME

R A

RE

A

ACTIVE or BUBBLING AREA

CLEARLIQUID

FOAMFROTHDOWNCOMER APRON

TRAY BELOW

SPLASH BAFFLE

TRAY ABOVE

PERFORATED PLATE WITH LIQUID CROSS FLOW (THE SIEVE PLATE) IS COMMONLYSPECIFIED TRAY FOR NEW DESIGNER

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LIQUIDFLOW

CAP AREA

INLET DOWNCOMER(WITH or WITHOUTWEIR or SEAL BOX)

OUTLET DOWNCOMER

CAP AREA

DOWNCOMER

CAP

DOWNCOMER OUTLET

WEIR

AREA

CAPCAP AREA

OUTLET DOWNCOMER

BAFFLE

INLET DOWNCOMER

AREA

OUTLET DOWNCOMER

INLET DOWNCOMER

OUTLET DOWNCOMER

CAP

INLET DOWNCOMER

AREAWEIR

INLET VIEW

OUTLET VIEW

REVERSE FLOW

(a)

(b) (b)

(a)

TRAY PAIRS

TRAY TYPES BY LIQUID PATHS

DOUBLE PASS DOUBLE PASS CASCADE

DOWNCOMER

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP11

PROCESS FLOW DIAGRAM IN TOWER AREA

BOTTOMS PUMPS

REBOILER

TOWER

FEED

REFLUX PUMPS

PRODUCT

REFLUX DRUM

TRIM COOLER

OVERHEADCONDENSER

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP12

1

RVTI

100TIC

11/2"VENT

3"x4"

RV-100-4"TO FLARE RELIEFVALVE HEADER

PT101

TE101

15

102

102

TE

PT

16

27

103PT

FEED P-102-6"

TE103

FE101 101

FCV

T

S-100-6"

C-100-4"

P-104-10"

Ø8"

Ø8"

P-103-10"1"STEAM OUT

3"DRAIN

BOTTOMS

PIC101 3"(TYP.)

4"(TYP.)

101PIC

P-105-6"

STRAINER(TYP.)

103-PA 103-PBBOTTOMS PUMP BOTTOMS PUMP

LC101

101LG

100FCV

100FE

P-1

01-3

"

Ø2"

STRAINER(TYP.)

REFLUX PUMP104-PA

100PIC

REFLUX PUMP

100PIC

104-PB

P-109-3"

2"(TYP.)

3"(TYP.)

P-1

10-4

"

2"DRAIN 1"STEAM OUT

102

102LG

LC

104PT

P-109-3"

101FCV

101FE

2" PRODUCT

105-DREFLUX DRUM

Ø6"(TYP.)

P-108-6"

CW-100-8"

Ø6"(TYP.)

CWR-100-8"

P-1

07-8

"G

RA

VIT

Y F

EE

D

STRIPPERT-100

105-EOVERHEAD

CONDENSER

P-100-18"

Ø10"

Ø6"

SAMPLE PIPING AND INSTRUMENTATION DIAGRAM AROUND A COLUMN

(AIR COOLER)

P-106-4"

100E-REBOILER

NOTE: REFER CLP31 FOR TYPICAL PIPING.

1

FR PRC

TAIL GAS

FRC FR

FR

2

3

4

6

5

7

29

30

15

1

31'-6

"10

'31

'-6"

15'

12'-6

"

4"

E-1026,000,000Btu/h

400°FP-23 13,000bbl/(STREAM)(d)

42.5°API

8"

8"

3"

134°F195psig

LALG

5000 Ib./h38.3 MOLECULAR WEIGHT130.7 MOLES/H

39°APIbbl/(STREAM)(d)

P-22 11,200

950,000Btu/hE-12

8"

115°F

130°F6"

8"

(14

TR

AY

Sx2

7" S

PA

CIN

G)

(14

TR

AY

Sx2

7" S

PA

CIN

G)

MANHOLESBETWEENTRAYS20-21&25-26

TRAYS

MANHOLESBETWEEN

5-6&10-11

130°F190psig

TI

TI115°F

TI115°F

11,500,000Btu/hE-11

2 SHELLS

6"

4"

4"

RV

TI

POSITION THE RELIEF VALVE ON ALOWER ELEVATED PLATFORM, BUTABOVE THE RELIEF-LINE HEADERIN THE PIPE RACK.NOTE THAT ACLOSED RELIEF LINE SYSTEM ISSPECIFIED.

OTHER FOR A SHORT PUMP CIRCUIT.AND PUMP ADJACENT TO EACHARRANGE THE TOWER, EXCHANGER

DROP THE OVERHEAD LINE ALONGTHE TOWER. ORIFICE CAN BE INTHE VERTICAL RUN, ACCESSIBLEFROM A LOWER ELEVATED PLATFORM

PROVIDE PLATFORM FOR LINE BLIND,VENT AND INSTRUMENTS. LOCATEHANDLING DAVIT, IF REQUIRED,AND MAKE IT ACCESSIBLE FROM

POSITION OF THE ORIFICE ANDTHE CONTROL SET AT GRADE,AFTER THE EXCHANGER-SHELLOUTLET.

PROVIDE AN ACCESS PLATFORMFOR ALL MANHOLES THAT ARE12ft OR HIGHER ABOVE GRADE.USE THIS MANHOLE PLATFORMFOR ACCESS TO VALVES, LINEBLINDS, AND INSTRUMENTS.

ELEVATE THE TOWER ACCORDINGTO THE REQUIRED NPSH ANDSUCTION LINE LOSS. ARRANGESUCTION LINE TO PUMPLOCATED BELOW THE PIPE RACK.

ARRANGE THE STRAIGHT RUN FORORIFICE. PROVIDE ACCESS TO8in BLIND (INVESTIGATE HANDLINGOF BLIND). THE LINE APPROACHESFROM THE OVERHEAD CONDENSERAND REFLUX DRUM OF ANOTHER TOWER.

4"

6"

THIS PLATFORM.

EVALUATION OF THE FLOW DIAGRAM FOR A DISTILLATIONCOLUMN TO VISUALISE AN ORDERLY ARRANGEMENT OF PIPING

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP13

4'

CONTROL VALVE

PUMP TURBINEACCESS TO PUMPSPUMP SUCTION

LINES WITH ONEEND BELOW ANDOTHER END ABOVEYARD CAN BELOCATED ONEITHER YARD BANK

ELEVATION OFLINES TO ADJACENT

TOWER

LINES BOTH ENDS HIGHER THANTOP YARD BANK LOCATED IN HIGHER LEVEL

SINGLE BAY OF 6000 OR 8000WHERE REQUIREMENT EXCEEDS THE

ABOVE TWO TIERS OF 6000RECOMMENDED.

FLARE HEADER WHERE IT ISREQUIRED AT HIGHER ELEVATION

EXPANSION LOOPS

MIN.

730

TO

100

0TOWER

PUMPS COULD BE LOCATEDINSIDE OR OUTSIDE WITHCONSIDERATION TO FREE SPACEFOR PUMP ACCESS WAY

ELEVATION OF PIPINGBETWEEN YARD &

ADJACENT TO EQUIPMENTELEVATION OF PIPING

MAX. PIPE DIADEPENDING ON

DISTANCE BETWEEN

TYPICAL PIPERACK CROSS-SECTION OF A TOWER AREA

2000 TO 3000 2000 TO 3000

1200 3000

3000

HE

AD

RO

OM

EXCHANGER

EQUIPMENT

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP14

TIERS WILL VARY

HA300Ib FACE OF FLANGE 207'-5"

PLATFORM 206'-9"

MH#1 203'-0"

202'-6"aPLATFORM 199'-11"

T.L. 205'-0"

PLATFORM 198'-11"

MH#4 168'-6"

D 161'-3"

C 162'-0"

PLATFORM 159'-11"MH#5 160'-4"

MH#7 138'-0"

PLATFORM 134'-11"

ALAG 125'-0"

126'-0"

E

PLATFORM 120'-11"

CG 119'-9"CG 118'-7"CG 117'-0"MH#8 115'-0"

DGJ 113'-6"

PLATFORM 112'-5"PLATFORM 111'-5"

T.L. 113'-0"

103'-6" 18" DIA. OPENING(SKIRT ACCESS)

G 109'-6"

GRADE 100'-0" 100'-6"

DAVIT 214'-0"

G 180°

PLATFORM 111'-5" & 112'-5"

MH

#8 0

°

J

L

90°

C LADDER 300°

L

PLATFORM 112'-5" 18"DIA. OPENING(SKIRT ACCESS)

C LADDER 60°

249°

BL

BG 275°

CG 263°

PLATFORM111'-5"4'-0"WIDE

PLAN

PLATFORM 120'-11"

TRANSMITTER

ORIFICE

180°

G

275°AG

AL249°

C LADDER 300°

LTRANSMITTER

MH#7 0°

PLATFORM 134'-11"

HOSECONNECTION

PLATFORM 157'-3" & 159'-11"

MH#5 0°

C126°

96°D

PLATFORM159'-11"

SEALPOT #16

270°

PLATFORM157'-3"

PLATFORM 206'-9"

SEALPOT #1

270°DAVIT120°A

153°

H

ELEVATION

TYPICAL NOZZLE LOCATIONS AND PLATFORM ELEVATIONS

NOZZLE ELEVATIONS ARE SET USING THE FOLLOWING INFORMATION-PROCESS VESSEL SKETCH,TRAY DETAILS, TYPE OF HEADS, BOTTOM TANGENT LINE ELEVATION, NOZZLE SUMMARY,INSTRUMENT SKETCH, P&ID, LAYOUT REQUIREMENT AND INSULATION REQUIREMENT.

NOTES:1. NOZZLES AND PIPING MUST MEET PROCESS REQUIREMENT.2. PLATFORM MUST SATISFY MAINTENANCE AND OPERATING NEEDS.

A,B,C, - TOWER NOZZLE LOCATIONLEGENDS:

AL,BL,AG & BG - INSTRUMENT TAP LOCATIONMH - MANHOLETL - TANGENT LINE

PLATFORM 165'-9"

C LADDER 300°

L

C LADDER 60°

L

LC LADDER 60°

DROP OUT AREA

C LADDER 60°LC LADDER 300°L

C LADDER 300°L

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP15

PLATFORM 157'-3"

MAINTENANCE ACCESS ARRANGEMENTS

DAVIT

MAINTENANCE ACCESS

ONE MAINTENANCEACCESS DIAMETER

TOP HEAD MAINTENANCE ACCESS

DAVIT

3'-0"MINIMUM900

HANDRAIL

PLATFORM WIDTH

CONGESTED PLATFORM WIDTH REQUIREMENTS

INTERMEDIATE PLATFORM WIDTH REQUIREMENTS

3'-0"MINIMUM (PLATFORM WIDTH)

900I.R. 10"

.250

VALVE

PLATFORM

BRACKETTOE PLATE

CLOSURE PLATEVESSEL CLIP

THE SIDE OF PLATFORM, THE WIDTH MUST BE 900MM PLUS THE WIDTH OF THE CONTROLS OR PROJECTIONS.PLATFORM WIDTHS ARE DECIDED AS PER OPERATOR ACCESS FOR PLATFROM WITH CONTROLS LOCATED AT

AT MAINTENANCE ACCESS PLATFORM, ADEQUATE SPACE TO SWING THE ACCESS COVER FLANGE TO BE PROVIDED.TOP HEAD MAINTENANCE ACCESS MUST BE FREE FROM THREE SIDES.

MINIMUM

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP16

LADDER(TYP)

VIEW-P

'P'

T-10

00°

PLATFORMEL. 109'-0"

PLATFORM EL.109'-0" TO 139'-0"102.740 111.890

T-10

00°

PLATFORM EL.139'-0" TO 169'-0"111.890 121.030

PLATFORMEL. 139'-0"

PLATFORM EL.169'-0" TO 178'-1"

PLATFORMBRACKETS

121.030 123.800T-

100

0°

EL. 169'-0"PLATFORM

(TYPICAL)

(TYPICAL)

LADDERCAGE

T-10

00°

EL. 178'-1"PLATFORM

PLATFORM EL.178'-1" & ABOVE123.800

TYPICAL PLATFORM ORIENTATION

350

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP17

LADDER

14"

INS

IDE

RA

DIU

SIN

SID

ER

AD

IUS

10"

14"

14"

(X°)

30°

15°

C LADDERL

DETAILS OF CIRCULAR PLATFORM

3'-0

" T

O 4

'-6"

900

TO

140

025

035

0

BRACKET SPACINGS15°

(Y°)

C MANHOLEL

(17') (25')5180 TO 7620

11.25° 11.25°

(8') (17')2440 TO 5180

30°15°

(4') (8')1220 TO 2440

45°22.5°

(Ø4')UPTO TO 1220MM

60°30°

Y°X°VESSEL I.D.

BRACKET SPACING

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP18

1800 M

AX.

BRACKET SPACING

AT OUTER EDGE

650 MAX.

OVERHANGING

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP19

TOWER PLATFORM ANDLADDER ELEVATION REQUIREMENTS

T.L.

TOP HEAD PLATFORMVENT ACCESS

10"(250)MINIMUM

CMAINTENANCEACCESS

L

PLATFORM(TYP.)

3'-0

" T

O 5

'-0"

(900

TO

150

0)

LADDER(TYP.)

MIN

IMU

M

INTERMEDIATE PLATFORMTO SUIT MAXIMUMLADDER RUN

BY LADDER OR PLATFORMLEVEL GAUGE ACCESS

FROM GRADEDRAIN VALVE ACCESS

GRADE

CONTROL INSTRUMENT &MAINTENANCE ACCESS

12"(300) MINIMUM

ALTERNATE VALVEACCESS WITH ORWITHOUT STEM EXTENSION

18" TO 6'-9"(450 TO 2050)

VALVE ACCESSMAINTENANCE &

NO ACCESS REQUIRED

TEMPERATURE &PRESSURE POINT ACCESS BYLADDER OR PLATFORM

BLIND ACCESSMAINTENANCE &

MAINTENANCE ACCESS PLATFORMS WITHMINIMUM CLEARANCE INDICATED.

SPECT. BLIND

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP20

LEVEL INSTRUMENTS

LADDER TOUPPER LEVEL

LADDER CAGE

PLATFORM SUPPORTBRACKETS

MAINTENANCE ACCESSPLATFORMEL. 109'-0"102.740

FROM GRADELADDER

PREFERREDSIDE EXIT

PIPINGPREFERRED LOCATION ACCESS NOT REQUIRED PAST STANDPIPE

TYPICAL PLATFORM ARRANGEMENT

PLATFORMS ARE REQUIRED ON TOWERS FOR ACCESS TO VALVES,INSTRUMENTS, BLINDS AND MAINTENANCE ACCESS. PLATFORMS AREUSUALLY CIRCULAR AND SUPPORTED BY BRACKETS ATTACHED TOTHE TOWER. ACCESS TO PLATFORM IS GENERALLY BY LADDER.

STEAM

AIR

UTILITYSTATION

STEAM & AIRRISER

350

& INSTRUMENTS

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP21

1

2

3

4

5

8"VAPOUR OUT18" SPACING)

(TWO TRAYS AT

3'-6

"3'

3'3'

17'-6

"(7

TR

AY

S A

T 2

'6"S

PA

CIN

G)

8'-6

"

5'-3

"

3'

45'-6

"

1 1/2"REFLUX IN

SEE DETAIL-3

MAX.

LIQUIDLEVEL

SEE DETAIL-2a

SIMILIAR TO DETAIL-3a

6" FEED

SEE DETAIL-2b

8" REBOILER DRAWOFF

1" DRAIN

20" REBOILER RETURNSEE DETAIL-1

1"STEAMOUT

3 = MANHOLES 6" BOTTOMS OUT

a°

a°

b

h

REBOILER DRAWOFF

TRAPOUT BOOT

BOTTOM TRAY

REBOILER RETURNNOZZLE

SINGLE FLOW TRAY

DETAIL 1 : REBOILER CONNECTIONS

DETAIL 2 : MANHOLE LOCATIONS

a. SINGLE FLOW TRAY

b°

b°

b. DOUBLE FLOW TRAY

DOWNFLOW AREA

SEALPOT AREA

TRAY AREAS

c° c°

c° c°

DETAIL 3 : REFLUX CONNECTIONS

a. SIMPLEST REFLUX PIPE b. REFLUX PIPE MUST CLEAR

ORIENTATIONRANGE

BUBBLE CAPS AND WEIRS

I.D.6'

DETAILS OF A TYPICAL DISTILLATION COLUMN

1/4"

NOZZLE Ø+ 5" MIN.

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP22

DETAILS OF TOWER SKIRT

LONG RADIUS ELBOW

7'.0

"2.

135

12"

9"6"

12"

.305

.230

.150

.305

Ø6"

OPERATORACCESS

TANGENT LINE

4'-0"1200

1/4 OF DIAMETER FOR 2:1 HEADS

EL. 110'-3"103.125

100.000EL. 100'-0"

POINT OF SUPPORT101'-0'100.300

BOTTOMOUTLET

OPENINGBOTTOM OUTLET

SKIRT ACCESS OPENING102'-6"/100.750

12"x18"/300x450MINIMUM

BOLT HOLES

VENT HOLE

STIFFENING RINGBASE RING

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP23

TYPICAL TOWER AREA DIVISION

VERTICAL PIPING AREA

PLATFORM OPERATING &MAINTENANCE AREA

AREALADDER LADDER

AREA

PIPE RACK

FOR VARIOUS FACILITIES

PREFERRED AREAS FOR PIPING, PLATFORMING ANDLADDERS TO BE LOCATED IN CONJUCTION WITHTRAY, NOZZLE AND PLATFORM ORIENTATION.

600

APPRX.

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP24

MIN

.

GUIDE

VESSELCLIP

SUPPORT

TRUNNION

OVERHEADVAPOURLINE

8"/200

4"/100

1 1/2"UTILITY PIPING

RADIAL LOCATEDPIPING

4"/100 MINIMUM+ INSULATION

TYPICAL TOWER PIPING SUPPORT

PIPE SUPPORTS.TOWER SHELL TO FACILITATE INSTALLATION OFADEQUATE SPACE BETWEEN BACK OF PIPING AND

2'-0"

BOP

600MIN

.

2'-0

"60

0M

IN.

BOP

4"/100

+INSULATION MINIMUM

(BOP=BACK OF PIPE)

COMMON BOPLOCATED PIPING

LIGHT CUTRELIEF LINE

`BOTTOMS'

HEAVY CUTFEED FROM HEATER

SPACE FOR PIPING

VAPOUR(TO ADJACENT CONDENSOR)

MOVEMENTDAVIT

SPACE FOR INSTRUMENT(OPTIONAL FOR LADDERS)

SPACE FORMANHOLES AND`DROPOUTS'(TRAY AND VALVEHANDLING)

AND INSTRUMENTSSPACE FOR LADDERS

PIPERACKPLAN

ELEVATION

PIPERACK

DRAIN ACCESS

`BOTTOMS' PUMP

DRIVER

`BOTTOMS'

LIGHT CUTINTERMEDIATE CUT

HEAVY CUT

GUIDE

RELIEF HEADER

FEED FROM HEATERTO ADJACENT CONDENSOR

HEAVY CUT(HEAVIER FRACTIONS)

INTERMEDIATE CUT

LIGHT CUT(LIGHTER FRACTIONS)

`CUT' ARE TAKENFROM SELECTEDTRAYS IN COLUMN

GUIDE

RELIEF LINE

SAFETY RELIEF VALVE

DAVIT(FOR HANDLINGTRAYS, VALVES ETC.)

VENT

INSTRUMENT SPACE(GAUGES FORTEMPERATUREAND PRESSURE)

MANHOLE

MANHOLE (FORSPARGER ACCESS)

LEVEL GAUGE

VENT

SKIRT

ACCESS DOOR

VENTBASE RING

TYPICAL ARRANGEMENT OF EXTERNAL PIPING AROUND COLUMN

AREADROP-OUT

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP25

TYPICAL RELIEF VALVE SYSTEM

PIPE RACK

RELIEF VALVEHEADER

TOWER

CLOSED SYSTEM RELIEFVALVE PREFERRED LOCATION(CLOSEST AVAILABLE PLATFORMABOVE RELIEF VALVE HEADER)

OVERHEAD LINE

ATMOSPHERIC RELIEF VALVEPREFERRED LOCATION

SA

FETY

DIS

TAN

CEALTERNATE LOCATION

PLATFORM(TYP.)

(TYP.)LADDER

OPEN AND CLOSED SYSTEM

OPEN TO ATMOSPHERE RELIEF VALVE SYSTEM LOCATED ONTHE TOP OF TOWER. CLOSED RELIEF VALVE SYSTEM TO BELOCATED AT A MINIMUM DISTANCE ABOVE THE RELIEF HEADER.

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP26

DROP OUT AREA

PSV

AIR COOLER MAINTENANCEPLATFORM

30'-0"(MAX) TUBE BUNDLES

AIR COOLERS

5

1 2

LG 10

LG

10

MAINTENANCEACCESS

22 5

REMOVABLESPOOL

35

17 FE

24

23

12

PLAN

SECTIONAL VIEW

500

300

300

300

350

550

SPACED PER ENG. STDS.USE PLATF. BRACKETS TYPE K,L,M,N,P,A &

UNLESS OTHERVISE SPECIFIDED ON INDIV. CONTRACT.

MANWAYS TO BE BETWEEN THESE ANGLES ON DROP OUT SIDE OF TOWER.

LOCATE MANWAY DAVIT PIVOTS PROVIDEFOR FULL OPENING OF MANWAY COVER.

TEMP. INSTRUMENTS TO BE LOCATED

BACKS OF PIPES FOR INSULATED LINES.

PIPING MUST BE KEPT CLEAROF

PLATFORM ACCESS REQUIRED FOR VALVES

LADDER ACCESS TO GAGE GLASSES, LEVEL CONTROLLERS TEMP. & PRESSURE INDICATORS IS ACCEPTABLE.

ALL INSTRUMENTS TO BE IN ACCORDANCEWITH INSTRUMENT DATA SHEET.

AVOID USE OD DOUBLE SIDE STEP LADDERS WITH PLATFORMS AT THE SAME ELEVATION

2" ON PIPE DIA PLUSOPENING FLG. DIA PLUS

INSULATION PLUS 2"WHICHEVER IS GREATER.

FE 17

13

30

25

21

PSV

PSV

1 2

7

LT

27

4

316

23

15

12

13

25

23 23HEADER FOR PLATFORM

13

31

TE

9 21

HEAD

PI

9

C MANWAYL 22

LIQUID 9 21TE

VAPOURTE 219

PIPE BRACKET20

LGLC

10

SKIRT ACCESS OPENING.

CLEARANCE

(TYP)

PIPING G.A. FOR COLUMN-REBOILER PUMP

* FOR NOTES REFER DWG. NO. CLP28

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP27

TO FACILITATE REMOVAL OF ELEMENT.

(a) THE TOP OF CENTRIFUGAL PUMP FOUNDATION SHALL BE A MINIMUM OF 3" ABOVE

(c) THE TOP OF FOUNDATIONS FOR VERTICAL VESSEL SHALL BE 8" ABOVE HIGH POINT

STEAM, AIR AND WATER AT GRADE: SPACED SO THAT ALL AREA CAN BE REACHED

35) "BUILT IN" EQUIPMENT HANDLING FACILITIES TO BE KEPT TO A MINIMUM. EQUIPMENT SHALL

WITH 50'-0" OF HOSE. STEAM AND AIR AT ALTERNATE LEVELS OF STRUCTURES ANDVESSELS (LOCATE AT LEVELS WITH HANDWAYS). ALL LINES TO UTILITY STATIONS TO

BE HANDLED WITH MOBILE EQUIPMENT. HORIZONTAL EXCHANGERS WITH CENTRELINE

REINFORCED CONCRETE STRUCTURES. WITH TROLLEY BEAMS AND TROLLEYS

SUCH STRUCTURES SHALL BE BASED ON THE USE OF MOBILE EQUIPMENT TO PULLTUBE BUNDLES. THE TROLLEY HOIST WILL ASSIST IN SUPPORTING THE BUNDLE DURINGPULLING AND WILL BE CAPABLE OF LOWERING IT TO GRADE FOR VERTICAL EXCHANGERS,MOBILE EQUIPMENT SHALL BE USED FOR HANDLING PARTS AND PULLING BUNDLES.

34) UTILITY STATION REQUIREMENTS:

(b) THE TOP OF RECIPROCATING PUMP FOUNDATION SHALL BE MINIMUM OF 12" ABOVE HIGH POINT OF FINISHED SURFACE.

SHALL BE NOT LESS THAN 6" ABOVE HIGH POINT OF FINISHED GRADE. ALLUNENCLOSED BUILDINGS IN PAVED AREAS SHALL HAVE FLOOR HEIGHT TO MATCHADJACENT PAVING. ALL UNENCLOSED BUILDINGS IN UNPAVED AREAS SHALL HAVEFLOOR HEIGHT 6" ABOVE ADJACENT GRADE. ALL FLOORS SHALL BE SLOPED FORDRAINAGE. EQUIPMENT FOUNDATION HEIGHT SHALL BE AS FOLLOWS:

BE 1". PROVIDE GATE VALVE ON EACH LINE AT HOSE CONNECTION. SEE ENGG. STD.

BE SUPPORTED AT OR NEAR GRADE TO PERMIT MAXIMUM USE OF MOBILE EQUIPMENT.FOR MAINTENANCE. EXCHANGERS WITH CENTRELINE 12'-0" AND LESS ABOVE GRADE TO

MORE THAN 12'-0" ABOVE GRADE SHALL HAVE SUITABLE PERMANENT STEEL OR

(EXCLUDING HOIST) FOR HANDLING INDIVIDUAL EXCHANGER PARTS. THE DESIGN OF

OF FINISHED SURFACE.

HIGH POINT OF FINISHED SURFACE.

1) ALL RELIEF VALVES THAT DISCHARGE TO A CLOSED SYSTEM SHALL BE LOCATED AS

5) PROVIDE CHAIN OR EXTENSION STEMS FOR VALVES IF CENTER LINE IS MORE THAN

CLOSE AS POSSIBLE TO THE VESSEL THAT IT PROTECTS, BUT ABOVE THE FLARE HEADER.

VALVES MUST BE LOCATED REMOTE FROM THE VESSEL, APPROVAL MUST BE OBTAINED FROM PROCESS ENGINEERING TO ENSURE THAT THE PRESSURE LOSS UP TO INLET OF

6) FOR MAINTENANCE BLIND INSTALLATION PROVIDE PLATFORM ACCESS TO ALL VESSEL

7) PLATFORMING REQUIRED WHEN MANWAY CENTRE LINE IS ABOVE 12'-0" FROM GRADE.

8) DO NOT INSTALL TEMPERATURE OR PRESSURE INSTRUMENTS IN REMOVABLE SPOOLS.

9) TE'S, PI'S, ETC. ON TOWERS SHALL BE ACCESSIBLE FROM A PERMANENT LADDER OR PLATFORM.

NOZZLES 3" AND LARGER WHERE TEMPORARY SCAFFOLDING CAN NOT BE INSTALLED

23) THE MAIN COOLING WATER SUPPLY AND RETURN SYSTEM SHALL BE LOCATED BELOW

24) EXCHANGER FRONT FOOT IS FIXED WHEN COOLING WATER SUPPLY AND RETURN IS

25) PIPING AND ELECTRICAL SHALL INFORM CIVIL ENGINEERING OF THE LOCATION OF ANY

29) REQUIREMENT OF HEADER BOX PLATFORMS SHALL BE AS PER ENGG. STANDARD.

GRADE ON BOTH SIDE OF THE UNIT PIPE WAY AS FAR AS PRACTICAL. A SECONDARYSUPPLY(COLD SERVICE WATER) AND RETURN SYSTEM WILL BE LOCATED IN THE PIPE

ELEVATIONS SHORT RUNS AT PUMPS, CONT. STATIONS MANIFOLDS ETC. AND THESE

PEDESTALS FOR STRUCTURAL STEEL COLUMNS SHALL BE 8" ABOVE HIGH POINT OFFINISHED GRADE. THE HIGH POINT OF BUILDING OF CONTROL ROOM AND SUBSTATIONSHALL BE DESIGNED CONSIDERING REASONABLE CABLE SPACING UNDER THE FLOORAND SHALL BE APPROVED BY CLIENT. THE OTHER ENCLOSED BUILDING FLOOR SLABS

3) PROVIDE INTERNAL CLEARANCE FOR TEMPORARY STRAINERS. INSTALL STRAINER AGAINST

4) PROVIDE CANTILEVERED SUPPORT STEEL ABOVE PUMP SUCTION AND DISCHARGE

2) PROVIDE SUPPORT ON RELIEF VALVE DISCHARGE PIPING TO MINIMIZE REACTION

22) MANHOLE AND HEAT EXCHANGER CHANNEL COVERS SHALL OPEN AND BACK AGAINST THE

26) USE ACTUAL ELEVATION BASED ON APPROVED DATUM FOR THE PLANT.

27) PUMP VALVING MUST BE OPERABLE WITHOUT THE USE OF CHAIN OPERATORS.

28) PROVIDE REMOVABLE SPOOLS AT EQUIPMENT FOR MAINTENANCE AS REQUIRED.

30) LOCATION AND ELEVATION OF FLARE HEADER SHALL BE DECIDED ON CASE

31) VALVES 3" AND LARGER ON TOWERS SHALL BE ACCESSIBLE FROM A PLATFORM,

32) PIPE ELEVATIONS IN GENERAL AREA OF RACK COLUMNS. SELECT SPECIFIC

33) MAXIMUM HIGH POINT OF PAVING SHOULD BE 0'-6" ABOVE LOW POINT, TOP OF

21) PIPING DESIGNER MUST VERIFY WITH PROCESS ENGINEERING THE LOCATION OF

DO NOT SUPPORT PIPING FROM REMOVABLE SPOOLS.

THERMO WELLS TO BE LOCATED WHETHER IN LIQUID OR VAPOUR SPACE.

WAY FOR SMALL USERS SUCH PUMPS, SAMPLE COOLER ETC.

THROUGHOUT THE UNIT 18'-0" MIN. CLEARANCE TO H.P. OF PAVING.

VESSEL WHERE REQUIRED TO MAINTAIN CLEAR PERSONNEL PASSAGEWAY IN FRONT.

INSERT PLATES REQUIRED FOR ATTACHING AUXILIARY SUPPORTS.

VALVES 2" AND SMALLER SHALL BE ACCESSIBLE FROM PLATFORM OR PERMANENT LADDER.

ALL CATCH BASINS SHALL BE 0'-0" ABOVE LOW POINT. THE TOP OF CONCRETE

TO CASE BASIS FOR EACH UNIT.

TEMPORARY SCAFFOLDING CAN NOT BE INSTALLED.

FORCES ON THE VALVE,EQUIPMENT OR ASSOCIATED PIPING.

DISCHARGE PIPING TO BE SELF DRAINING DOWN TO FLARE HEADER. WHERE RELIEF

RELIEF VALVE (INCLUDING LOSS IN RELIEF VALVE) DOES NOT EXCEED 3% OF

THE FLOW. DO NOT POCKET PUMP SUCTION LINES. USE ECCENTRIC REDUCERS

PIPING FOR INSTALLATION OF SPRING SUPPORTS WHERE REQUIRED.

7'-3" ABOVE OPERATING LEVEL. HOWEVER USE OF CHAIN OPERATED VALVES SHALL BE AVOIDED AS MUCH AS POSSIBLE. EXTENSION STEMS ARE NOT REQUIRED ON

FOR VESSEL NOZZLES 2" AND SMALLER, LADDER ACCESS IS ACCEPTABLE WHERE

(TOP FLAT) AT PUMP SUCTION NOZZLES.

VALVES NOT NORMALLY OPERATED.

THE SET PRESSURE.

36) ALL OVERHEAD PUMP SUCTION LINES SHALL DRAIN TOWARD THE PUMP WITHOUT POCKETS.

37) ALL TWO PHASE FLOW PIPING MUST BE NOTED ON P & ID. THIS PIPING MAY REQUIRE

38) ALLOW FOR 1" SHIMS (OR GROUT) ABOVE STEEL (OR CONCRETE). FOR VESSELSOVER 15'-0" DIAMETER ALLOW 1 1/2" FOR SHIMS (OR GROUT).

SPECIAL DESIGN CONSIDERATION.

BE AS INDICATED ON THE P & IDS.

VISIBLE WHILE OPERATING BYPASS VALVE.

OR LESS ABOVE GRADE, PERMANENT LADDER OR PLATFORM IS REQUIRED OTHERWISE.

OBSTRUCTION FOR INSTALLING METER LEADS AND ORIFICE TAPS.DOUBLE BLOCK VALVE IS REQUIRED FROM ORIFICE FLANGES TO ANY

CONTROL THE LEVEL IN A VESSEL MUST BE LOCATED SO THAT GAGE GLASS IS POSITION CONTROL VALVES DIRECTLY BEHIND PUMPS. CONTROL VALVES WHICH

FROM CIVIL ONLY AS REQUIRED. HOWEVER, PROVIDE INSERT PLATES AT THESE

CONTROLLERS FOR VIEWING FROM OPERATING AISLE. ABOVE 5'-0" ORIENT FOR

LOCATIONS, IRRESPECTIVE OF PIPING REQUIREMENTS.

VIEWING FROM A PERMANENT LADDER OR PLATFORM.

19) PROVIDE PERMANENT PLATFORMING FOR ACCESS TO UNIT BLOCK VALVES.

18) THE TYPE OF PIPING CONFIGURATION FOR AIR COOLER INLET AND OUTLET SHALL

17) A MINIMUM OF 3'-0" CLEAR FOR SINGLE BLOCK VALVE AND 4'-3" CLEAR FOR

15) LOCATE CONTROL VALVES ALONG SIDE EQUIPMENT OR AT PIPE WAY COLUMNS.

13) PIPE WAY WIDTH AND NUMBER OF PROCESS AND UTILITY DECKS REQUIRED ARE

10) FOR CENTRE LINE ELEVATIONS UP TO 5'-0" ORIENT GAGE GLASSES AND LEVEL

11) HEIGHT OF SHOES SHALL BE PER ENGG. STANDARD.

FLOW FOR GASES AND STEAM. PORTABLE LADDER ACCESS TO ORIFICE FLANGES 22'-0"VERTICAL RUNS ARE PERMITTED FOR IN WARD FLOW ONLY FOR LIQUIDS AND DOWNWARD

APPROACH PUMPS AND MAKE LIFTS WITHOUT OBSTRUCTION.

WHEREVER POSITION IS BEST FOR THE PIPE RUN AND OTHER CONDITIONS. DO NOT

FOR FUTURE OF 10% TO 15%. PIPING TO REQUEST INTERMEDIATE BEAM SUPPORTDETERMINED BY PIPING. INSTRUMENT AND ELECTRICAL REQUIREMENTS PLUS PROVISION

12) OPERATING AISLE AND MAINTENANCE ACCESS DOES NOT HAVE TO BE IN A STRAIGHT LINE.

20) PROVIDE PIPE BRACKETS ON ALL TYPE ON VERTICAL VESSELS AS PER ENGG. STANDARD.

16) PIPING AND STRUCTURES SHALL BE ARRANGED TO PERMIT MOBILE EQUIPMENT TO

14) THE DIMENSION MAY VARY WITH COLUMN DIAMETER. LINE UP COLUMNS ON COMMONCENTRELINES WHERE PRACTICAL.


* FOR DETAILS REFER DWG. NO. CLP27

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP28

UNDER GROUND.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP29

TOWER

OPERATORACCESS

TYPICAL OPERATOR ACCESS

TYPICAL MAINTENANCE ACCESS

MAINTENANCEACCESS

TOWER

PUMP

THE CLEARANCES FOR THE OPERATOR ACCESSAND MAINTENANCE ACCESS CAN SOMETIMES, BETHE GUIDELINES FOR TOWER BOTTOM ELEVATION.

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP30

IN DECIDING THE ELEVATION OF THE TOWER.MINIMUM NPSH REQUIREMENT IS A KEY FACTOR

NET POSITIVE SUCTION HEAD (NPSH) OF BOTTOM PUMPS

PUMP

ST

AT

IC H

EA

D

TOWER

F

T-10

0

90°

0°E

180°

M3

SK

IRT

P-105-6"

225°S

OP

EN

ING

DRAIN-3"G

DAVIT

270°D

P-103-10"

T3247.5°

P367.5°

55°L1

L2

TYPICAL TOWER PIPING ARRANGEMENT

100.000 111.890PLAN EL.139'-0" TO 169'-0"

121.030

P2

C LADDERL90°

P-1

02-6

"T-

100

67.5°

DAVIT

C 0°

T2247.5°

M2

180°

111.890

RV-100-4"

PLAN EL.169'-0" TO 178'-1"

270°C LADDERL

247.5°T1

1 TO

27

T-10

0C

TR

AY

S 0

°

123.800

DAVIT

90°C LADDERL

180°

M1

30°8

L

67.5°P1

P-10

1-3"

DOWNCOMERTRAY#1

Ø1"AIR & STEAMUTILITY LINES

121.030

N

90°

T-10

00°

ATOP

P-100-18"

VENT

PLAN EL.178'-1" & ABOVE123.800

THE PIPING ARRANGEMENT ARE TO BE DESIGNED BASED ONPROCESS VESSEL SKETCH, TRAY DETAILS, NOZZLE ELEVATION.

N

PLAN EL.GRADE TO 139'-0"

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP31

CONTROL STATION 300CLEAR

CLEAR SPACE IN FRONT OF MANHOLE

600

CLEAR

SPACE

600

CLEAR

SPACE

FRO

M LAD

DER

600

P-1

04-1

0"

NOTE : REF.CLP12 FOR TYPICAL P&I DIAGRAM.

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP32

REBOILER

BOTTOMS PUMP

TRIM COOLERS

OVERHEADCONDENSERS

TOWER

MAINTENANCE ROAD

REBOILER

TO

WE

R

REFLUX PUMPS

(PLAN ABOVE)

TRIM COOLERS

BOTTOMS PUMPS

PIPE RACK

MAINTENANCEACCESS WAY

N

ELEVATION

PLAN

TYPICAL PLAN AND ELEVATION VIEW OF TOWER AREA

N

OVERHEAD CONDENSER

REBOILER CONNECTION

10° 10°

10°10°

HIGHLIQUIDLEVEL

DRAW-OFF

DOWNCOMER

RETURN

LOCATION

ALTERNATEDRAW-OFF

DRAW-OFF

ALTERNATE

LOCATIONRETURN

DOWNCOMER

(MAXIMUM)

RETURN

TOWER

REBOILER

a. HORIZONTAL REBOILER

DOWNCOMER

b. VERTICAL REBOILER

RETURN

LEVELLIQUIDHIGH

TOWER REBOILER

DRAW-OFF

RETURN

(MAXIMUM)

DRAW-OFF

LOCATION

ALTERNATERETURN

AT ANYORIENTATION

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP33

25 MM GAP

ALTERNATEDRAW-OFFLOCATION

HEAT MEDIUM IN

HEAT MEDIUM OUT

DRAIN

LIQUID

PI CONN.

LGLC

PRODUCT

PUMP AND OR COOLER

POSSIBLY BETWEEN REBOILERAND CONTROL VALVE

THERMOWELL

TEMP. INDICATOR

PLAN

DIAGRAMMATIC ELEVATION(FOR USUAL ARRANGEMENT SEE PLAN BELOW)

SK

IRT

FOUNDATION

HIGH POINT OF

FINISHED SURFACE

8 11

1/2 PIPE DIA

+300 MIN.

WEIR HEIGHT

TANGENT LINE600

54

1200

MIN

.6

PI CONN.

7

VAPOR

300

3

BY

1

PR

OC

ES

S

2

9

1/2 OVERALL

LENGTH

OVERALL

LENGTH

C TUBE BUNDLE

ALTERNATE LOCATIONS OF NOZZLES

WILL BE SPECIFIED BY THE PROCESS ENGINEER IF NECESSARY

SURGE VOLUME BY PROCESS(SHOWN ON DATA SHEET)

10

2/3 DIA REBOILERWEIR HEIGHT APPRX.

2

THIS ARRANGEMENT FOR KETTLE REBOILERS, WHICH IS THE TYPE MOST

NOTES:-

1) SET KETTLE AT MIN. ELEV. TO SUIT PRODUCT LINE PRESSURE DROP

COMMONLY USED, HAS MINIMUM LIQUID HELD IN COLUMN AND

OPERATING SURGE IS IN KETTLE.

OR PUMP SUCTION REQUIREMENTS.

2) WEIR HEIGHT DEPENDS ON REBOILER SELECTION.

3) HEAD EQUALS NORMAL PRESSURE DROP FOR LINES AND REBOILER.

4) HEAD AT MAX. LEVEL GIVES 100% SAFETY OVER NORMAL.

5) USUALLY TRAY SPACING + 150MM. PROCESS WILL SPECIFY.

6) PROCESS WILL SET DIMENSION.

7) LG AND LC NOT REQUIRED ON COLUMN FOR THIS HOOK-UP.

8) SET SKIRT HEIGHT TO SATISFY NOTES 1,2 AND 3.

9) ANCHOR LOCATION DEPENDS ON RELATIONSHIP OF REBOILER WITHCOLUMN ANCHOR ONE END ONLY.

10) SURGE VOLUME IS NORMALLY A MIN. OF 2 MINUTES.

11) IF THIS IS THE COLUMN DRAIN. PIPE TO DRAIN FUNNEL.

(SHOWN ON DATA SHEET)


DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP34

L

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP35

TYPICAL INSTRUMENT VESSEL SKETCH

T.L.

T3

P327

P215

T216

P12

1T1PT

101

PT102

PT103

103TE

915

1500

180

TE101

102TE

L2

L1

3"/7

5

1200

3"/7

5

1/2"THD

3/4"THD101LG

LC101

Ø3"

3/4"THD

TL = TANGENT LINETHD = THREADEDRF = RAISED FACE

1 1/2" 300# RF

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP36

SWITCH

DRAIN

Ø1"

GLASS

1/2"VENT

1/2"DRAIN Ø3/4"

PLAN ELEVATION

PLAN

LEVEL CONTROLLER(RIGHT HAND)

COVER SWING AREA Ø11/2" OR Ø2"

PLATFORM

3/4"DRAIN

ELEVATION

SINGLE MOUNTED LEVEL CONTROLLER

SINGLE MOUNTED LEVEL GAUGE AND SWITCH

TYPICAL ARRANGEMENT FOR LEVEL INSTRUMENT

900

TO

205

0LEVEL SWITCH

LEVEL GAUGE

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP37

TYPICAL TEMPERATURE & PRESSURE INSTRUMENT NOZZLE LOCATIONS

2" /5

0

MIN

IMU

M

TEMPERATURE

PRESSURE INSTRUMENTNOZZLE ORIENTATIONS

ORIENTATIONSTHERMOWELL

DOWNCOMER

LIQUID SPACE

DOWNCOMER

VAPOUR

LIQUIDPRESSURE

VAPOURSPACE

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP38

TYPICAL TEMPERATURE AND PRESSURE INSTRUMENT ARRANGEMENTS

PROBE

CONDUITBOARD MOUNTEDTHERMOCOUPLE

WHEN ORIENTINGTEMPERATURE NOZZLESCHECK FOR ADEQUATECLEARANCE OF PROBEWITH DOWNCOMER WALL

LADDER

LOCAL PRESSURE GAUGES

DOWNCOMER AREA

LOCALLY MOUNTEDDIAL THERMOMETER

(TYP)

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP39

TYPICAL COMMON BRIDLE-LEVEL INSTRUMENT ARRANGEMENT

T-100

0° Ø3" STANDPIPE L2L1 55°

(102.740)EL. 109'-0"PLATFORM

101

LC

LG

101

TYPICAL TOWER DAVIT ARRANGEMENT

DAVIT

PLAN

DROP AREA

ELEVATION

ALTERNATIVE DAVIT LOCATIONSUPPORTED FROM PLATFORM

Ø4" TO Ø8"

DAVIT SUPPORTFROM VESSEL

COLUMN PIPING

: 29040-PI-UPS-1003

: RO

: 1 OF 1

: CLP40

DOC NO.

Rev.



PIPING STUDY

DWG. NO.

COLUMN PIPING

: 29040-PI-UPS-1003

: R0

: 1 OF 1

: CLP41

TROLLEYBEAM

DROP AREA

PLAN

8'-0

"MIN

..2

435

BEAM SUPPORTSTROLLEY

ELEVATION

TROLLEY BEAM

TYPICAL TOWER TROLLEY BEAM ARRANGEMENT

Column Piping

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