HEN-0000-ME-SP-0002_B4

Hengam Offshore Development Project EPCI For

Topsides and Infield Pipelines and Subsea Cables Contract No. 4405-90-2FG

SPECIFICATION FOR INSULATION Rev. B4 Proj. Area. Disc Doc. Seq. Page HEN 0000 ME SP 0002 1 of 18

SPECIFICATION FOR INSULATION

B4 08.Feb.2014 Re-Issue as AFD J. Patel/ S. Emamjomeh Tushar Arun H. Karimi

B3 12.Mar.2013 Re-Issue as AFD J.W.Jung Y.H. Park Jitendra Patel

B2 17.Jan.2013 Approved for Design J.W.Jung Y.H. Park

B1 12.Oct.2012 Issued for Approval J.W.Jung Y.H. Park

B0 16.Jun.2012 Issued for Comment J.W.Jung Y.H. Park

Rev. Date Purpose of Issue Prep. Checked Approve Approve

ISI / Ocean Development IOOC




INPUTS Document Number Title Status

REVISONS & HOLDS Revision Description of Changes & Holds




TABULATION OF REVISED PAGES

Sheet Revisions

Sheet Revisions

B0 B1 B2 B3 B4 B0 B1 B2 B3 1 X X X 2 X 3 X X 4 X 5 X X 6 X 7 X 8 X 9 X 10 X 11 X 12 X 13 X X 14 X X 15 X 16 X X 17 X X X 18 X X X 19 X X




Table of Contents

1. GENERAL .................................................................................................................... 6

1.1 Definition ............................................................................................................................................... 6

1.2 Reference Documents ........................................................................................................................... 6

2. INSULATION AND ACCESSORIES REQUIREMENTS ................................................ 8

2.1 General Application on Unmanned Platform .......................................................................................... 8

2.2 Insulation Material ................................................................................................................................. 8

2.3 Removable Insulation Covers ................................................................................................................ 8

3. GENERAL APPLICATION REQUIREMENTS ............................................................... 9

3.1 General .................................................................................................................................................. 9

3.2 Un-insulated Surfaces ........................................................................................................................... 9

3.3 Pressure Testing Considerations ......................................................................................................... 10

3.4 Valves and Flanges ............................................................................................................................. 10

3.5 Insulation Supports .............................................................................................................................. 10

4. INSULATION OF PIPING ........................................................................................... 10

4.1 Insulation Application ........................................................................................................................... 10

4.2 Weatherproofing Application ................................................................................................................ 11

5. INSULATION OF VESSELS AND REQUIREMENT .................................................... 11

5.1 Insulation Application ........................................................................................................................... 11




5.2 Weatherproofing Application ................................................................................................................ 12

6. MOISTURE PROTECTION ......................................................................................... 13

7. INSULATION TABLES ................................................................................................ 13

7.1 Schedule of Insulation and Accessory Materials .................................................................................. 13

7.2 Schedule of Insulation Materials Application ........................................................................................ 15

7.3 Insulation Thickness ............................................................................................................................ 15

8. INSULATION AND FITTINGS DETAILS ..................................................................... 18

9. ENVIRONMENTAL CONDITIONS .............................................................................. 18

9.1 Ambient Conditions ............................................................................................................................. 18

9.2 Utility Supply Condition ........................................................................................................................ 18




1. GENERAL The Hengam Field is located in the Persian Gulf at approximately 45 km south of Qeshm Island. Iranian

Offshore Oil Company (IOOC) has awarded HENGAM offshore development EPCI project to Intelligent

Solutions Inc. and Ocean development LLC. Joint Venture to perform Basic & Detailed Engineering, as

well as procurement, fabrication, installation, pre-commissioning & commissioning for:

Topside facilities of three offshore wellhead platforms

Infield pipe lines

Submarine composite Cable (Power, Control, Fiber optic) from offshore to onshore facilities.

1.1 Definition Wherever the word "shall" has been used, its meaning is to be understood as mandatory. Wherever the

word "should" has been used, its meaning is to be understood as strongly recommended or advised.

Wherever the wording "may be" has been used, its meaning is to be understood as a freedom of choice.

The following words and expressions shall have the meanings hereby assigned to them except where

the context of this document otherwise requires:

"Company" means Iranian Offshore Oil Company (IOOC).

"EPCI Contractor" means Company mentioned in the Contract as part of the "other part" and includes its successors and permitted assignees. (ISI/ODCO)

"Vendor" means anyone who provides goods or services to a company. A vendor often manufactures and/or sells their products to a customer.

Whenever terms appear in this document as capitalized terms, they shall have the meaning ascribed to

them here above.

1.2 Reference Documents The standards that are listed here below forms an integral part of this specification, in the whole or only

the mentioned paragraphs, and with the modifications or additions indicated by the same

DESIGN CODES

ASME B 31.3

Process Piping.

ASME Section V Non-destructive Examination.

REFERENCE DOCUMENTS

ASME American Society of Mechanical Engineer

ASME B1.1 Unified Inch Screw threads (UN and UNR thread form)




ASME B1.2

ASME B1.20.1

ASME B16.5

Gages and Gagging for Unified Screw Threads

Pipe Threads (except dry seal)

Pipe Flanges and Flanged Fittings

ASME B16.9 Factory-made Wrought Steel, Butt-welding Fittings

ASME B16.11 Forged Steel Fittings, Socket-welded and Threaded

ASME B18.2.1

ASME B18.2.2

ASME B16.20

C.S. and A.S. square and hex bolts and screws

A.S. and S.S. square and hex nuts

Metallic Gasket for Pipe Flanges- Ring Joint, Spiral wound and

Jacketed

ASME B16.21 Non-Metallic Flat Gaskets for Pipe Flanges

BS British Standards Institute

BS 1133 Protection of Metal Surfaces against Corrosion during Transit

And Storage

BS 476 Part 4 Non-combustibility Test for Materials

ASTM

American Society of Testing and Material

ASTM A193 Alloy Steel and Stainless Steel Bolting Material for High

Temperature Service

ASTM A194 Carbon Steel and Alloy Steel Nuts for Bolts for High Pressure and High

Temperature Service

ASTM B209 Aluminium Alloy sheet and plate / Check

ASTM C195 Mineral Fiber Thermal Insulating Cement

ASTM C533 Calcium Silicate Block and Pipe Thermal Insulation

ASTM C547 Mineral Fiber Performed

ASTM C585 Inner and Outer diameters of Rigid Thermal Insulation for Nominal Sizes of Pipes and Tubing (NPS System)

ASTM C612 Specification for Fiber Block 2 and board for Thermal Insulation

ASTM C795 Thermal Insulation for use in Contact with Austenitic Stainless Steel

ASTM C892 High-Temperature Fiber Blanket Thermal Insulation




2. INSULATION AND ACCESSORIES REQUIREMENTS

2.1 General Application on Unmanned Platform Insulation for process piping for process operation purpose is not required for un-manned platform.

Insulation for personal protection purpose shall be applied for process piping and process equipment

which maybe have hot surface with operating temperature more than 70C. No insulation shall be

installed around the bolts and flanges in hot oil service.

No insulation for utility system equipment and piping except emergency generator engine shall be

applied.

In case of emergency generator engine, the surface temperature of any exposed surface shall not

exceed 55C. The VENDOR shall identify areas likely to exceed this temperature. External personnel

protection facilities for exhaust hot gas piping system and hot surface of engine may be required.

Personal safety-wise, insulation maybe be considered on exhaust gas stack for emergency diesel

generator engine (2m above deck level) or warning plate shall be fitted.

In case of cold insulation, HEAGAM Well Head Platforms are not required except HVAC cold piping

system. For general principle of HVAC cold piping system, no pipes and duct pass through above

electrical equipment in LER shall be applied as far as practicable. When space and routing limitation is

not applicable this principle, minimum spot insulation above electrical equipment or drainage fittings

maybe utilized for preventing condensed moisture drop.

2.2 Insulation Material

Insulation materials, weatherproofing, and accessories shall be as specified in TABLE 1, Schedule of

Insulation and Accessories Materials.

Insulation materials shall be non-corrosive, whether wet or dry, and suitably inhibited for application to

steel surfaces. Insulation materials for austenitic stainless steel surfaces shall be in accordance with

ASTM C795, and transported, handled, stored, and applied in accordance with ASTM C929.

2.3 Removable Insulation Covers Materials shall comply with the ASME B31.3, ASME B31.8 and Piping Specification and Removable

insulation covers shall be installed on flanges, flanged valves, pumps, instrumentation or similar

equipment and when so stated on pertinent drawings




A removable cover insulation system shall be made of a minimum number of pieces. Joints shall be

arranged to eliminate any water penetration into the insulation. The weight of any single piece of the

cover shall not exceed 23 kilograms.

Insulation covers shall be constructed so that their natural seam is positioned on the gravitational

bottom of the fittings.

The various parts of covers shall be assembled using teflon-coated yarn or equivalent.

Insulation covers shall fit tightly over fittings and protrusions and shall be held in place with velcro

glassfabric straps (or equivalent) and stainless steel buckles. The insulation covers shall be of a

sufficient width to overlap the adjacent weatherproofing by a minimum of 125 mm on each side of the

fitting.

Each pipe of a removable cover shall have an embossed metal tag permanently attached with

applicable information such as equipment or pipe line number, size, rating and fitting type.

3. GENERAL APPLICATION REQUIREMENTS

3.1 General

Application of base insulation materials shall be as specified in TABLE 2, Schedule of Insulation

Materials Application.

Insulation materials shall not be applied if the moisture content is more than the stated amount given

in the SUPPLIERS application data.

Surfaces to be insulated shall be clean, free of oil, grease, dirt and moisture. All specified coatings

shall be applied and allowed to cure before proceeding with the application of insulation materials.

3.2 Un-insulated Surfaces The following items shall not be insulated unless otherwise noted on the drawings or herein:

- Drains

- Dummy supports

- Name plates

- Stamping

- Vents

- Strainers

- Gauges




3.3 Pressure Testing Considerations Vertical surfaces shall be insulated only after pressure testing.

Horizontal surfaces should be insulated after pressure testing. However, they may be insulated before

pressure testing upon Company approval provided the insulation is temporarily held back a minimum

distance of 150 mm on either side of welds, threaded, or bolted connections. After completion of

pressure testing, all missing insulation shall be installed and appropriately weatherproofed.

3.4 Valves and Flanges In order to protect the flange mating faces, a removable flange protection made of AISI 316 stainless

steel shall be installed around the outer diameter of flanges. Tightness shall be reinforced with a

double Teflon band applied on the inner face of removable flange protection. Drainage outlets shall be

an integral part of the removable cover design so that leaks may be visually detected.

3.5 Insulation Supports Insulation supports for vertical piping shall be of a bolted or clamp-on type. The width of the support

shall be one-half of the thickness of the insulation for single layer insulation.

All equipment insulation supports shall be installed by the equipment Manufacturer.

4. INSULATION OF PIPING

4.1 Insulation Application Single layer pipe insulation shall be applied in a staggered circumferential joint arrangement. Multiple

layer pipe insulation shall be applied with all joints staggered. The following chart details when single

or multiple layer insulation shall be used.

NPS Number of insulation layers Position of longitudinal joints (clock positions)

8 1 3 and 9

10

2 Inside layer : 4 and 10 Outside layer : 3 and 9

The circumferential joints of multiple layer insulation systems shall be staggered 150 mm from the

circumferential joints of any adjacent preceding or succeeding layer.

Insulation shall be secured with wire or bands (15 mm wide) up to 8 NPS, and with bands (20 mm

wide) for sizes 10 NPS and above. Wire and bands shall be spaced on 300 mm maximum centers.




Securement of fittings shall be as required to hold the insulation segments together tightly, but a

minimum each extreme shall be secured.

4.2 Weatherproofing Application

All pipe fitting covers shall be banded on each extreme.

A watertight metal termination cover shall be installed where pipe insulation terminates. Insulation at

each termination shall be square cut. Band clips shall be equally spaced with one clip at the overlap.

Termination covers shall be with a band at each circumferential overlap and sheet metal screws

spaced on centers.

Irregularly shaped surfaces, which cannot be suitably weather proofed with metal jacketing, shall be

finished with a thick layer of finishing cement. A thick coat of weatherproofing mastic with reinforcing

fabric shall be applied over the cured cement. This finish shall extend at least 50 mm under the

adjacent metal jacketing. No porosity shall exist in the weatherproofing mastic when dry.

Sheet metal screws for fastening the metal weather proofing shall have a neoprene washer under its

head.

5. INSULATION OF VESSELS AND REQUIREMENT

5.1 Insulation Application If needed, insulation on vessels and tubular equipment shall be applied in a staggered joint

arrangement to fit the contour so that no gaps are evident.

The insulation shall be secured in place with bands spaced on 450 mm centers

Banding of insulation over the head of horizontal equipment and top heads of vertical equipment shall

be as follows:

- A floating ring, large enough to clear the center nozzle flange, if one exists, shall be made

from 6 mm diameter stainless steel rod. The ring shall be placed in the center of the head.

A girth ring, made from two bands shall be installed on the shell at approximately 150 mm

below the tangent line of the head.

- Bands shall be run radially from the floating ring to the girth ring. The radial bands shall be

spaced at 300 mm maximum centers on the girth ring.

Unexposed bottom heads and cones on vertical vessels and tubular equipment shall have the blanket

insulation shaped so that all sections are tight and secured with wire to slotted weld pins or blanks

nuts.




Vessel and tubular equipment transitions shall have the insulation applied with all edges securely

laced together with wire.

Vessels and tubular equipment stiffener rings shall be insulated. The insulation shall be applied with all

edges securely laced together with wire. The insulation shall also be secured in place with a band in

the center of each stiffener ring.

Insulation shall be applied behind the name plate mounting bracket, when possible.

5.2 Weatherproofing Application Vessel and tubular equipment shells shall be weatherproofed with aluminum jacketing, (1.0 mm thick

by 35 mm corrugated).

Vertical overlaps of corrugated metal jacket sections shall be a minimum of one and one half

corrugations but not less than 75 mm. Vertical overlaps of non-corrugated metal jacket sections shall

be a minimum of 75 mm.

Circumferential overlaps at the top tangent lines, transitions and stiffeners shall be a minimum of 150

mm. All other circumferential overlaps shall be a minimum of 75 mm.

Metal jacketing overlaps and seams shall be arranged to shed water. Seams shall be water and

weather tight.

Insulation on the heads and transitions shall be weatherproofed with metal jacketing fabricated from

gores shaped to fit and lapped a minimum of 75 mm to ensure a weather tight construction. The gores

shall be secured with screw spaced on 75 mm maximum centers. All overlaps on the top head shall

have sealant.

On vertical vessels and equipment, S-clips shall be used to keep the jacket sheets from sliding down.

S-clips shall be fabricated from 20 mm wide bands. The length of the S-clip shall equal the overlap.

They shall be spaced on 300 mm maximum centers but not less than three per each metal sheet.

Metal jacketing over shells less than 4.60 meters in diameter shall be secured with bands spaced on

300 mm maximum centers. Band spacing shall be calculated on an individual basis for shells greater

than 4.60 meters in diameter. Each circumferential overlap shall have a band installed. J- clips,

fastened to the jacket with screws, shall be used to prevent bands from sliding down. Each band shall




have J-clips on 1.80 meters maximum centers but not less than four J-clips per band. The band at the

overlap shall be installed over the S-clips.

Band shall be secured or fastened with closed seals. Wing type seals are not allowed on tank,

pressure vessel and equipment shells.

Insulated surfaces such as equipment bottom heads, which are not exposed to weather, may be

weatherproofed with mastic and scrim cloth in lieu of metal.

Heads of vessels and tubular equipment shall be weatherproofed with metal jacket. A minimum of 150

mm shall be turned down and overlap the shell jacketing. The jacketing shall be formed to fit the

contour of insulation. All seams shall be made up by lock-seam construction and secured with screws

spaced on 125 mm maximum centers. The head jacketing overlap shall be fastened to the jacketing

on the shell with sheet metal screws spaced on 125 mm centers. The head jacketing shall also be

secured in place at the circumferential overlap with a band.

6. MOISTURE PROTECTION The cut surfaces of insulation segments at terminations and cut-outs shall be covered with 2 layers of

0.15 mm thick aluminium foil extending 300 mm on the underside and top of the insulation. The foil

shall be considered as a protective measure against rain water and not as a substitution for

weatherproofing.

A semi circular rain shield fabricated from 0.5 mm thick aluminium shall be installed immediately above

each uninsulated horizontal protrusion. The shield shall be at least 25 mm under the adjacent vertical

weatherproofing and project 25 mm to the side from the vertical surface.

7. INSULATION TABLES

7.1 Schedule of Insulation and Accessory Materials

TABLE 1

MATERIAL MAXIMUM

OPERATING TEMP. C

DESCRIPTION

COMMENTS

Mineral fiber- blanket 650 ASTM C 592 Class 2 with metal mesh both sides

Mineral fiber fitting covers 650 ASTM C 547 Class 2

Mineral fiber Pipe cover Preformed

650 ASTM C 547 Class 2




MATERIAL

MAXIMUM OPERATING

TEMP. C

DESCRIPTION

COMMENTS

Mineral fiber V Grooved 650 ASTM C592, Class 2, 128 kg/m3 Unfaced for fire protection

Ceramic fiber - Blanket 1260 ASTM C892M, Type 3, Grade 8, 128 kg/m3 Unfaced for Fire protection

Aluminium-Fitting covers Type 3003-H14 or 5005-H14 Aluminium alloy with factory applied moisture barrier 0.6 mm tick, smooth

Acoustical jacketing Type 3003-H14 or 5005-H14 aluminium alloy with factory applied 0.4 mm thick lead lining, 0.4 mm thick flat, stucco embossed

Aluminium jacketing Type 3003-H14 or 5005-H14 aluminium alloy with factory applied moisture barrier. 0.5 mm thick for 200 mm pipe 0.8 mm thick for 200 mm < 500 mm pipe 1.0 mm thick for > 500 mm pipe and equipment

Stainless steel jacketing Type 316 stainless steel with 2B mill finish .4 mm thick smooth Fire Protection Pipe and Equipment

Bands Type SS 316L annealed temper, 15 mm by 0.38 mm for piping up to 8 NPS, 20 mm by 0.5 mm for equipment and piping over 8 NPS

Seals Type SS 316L, hard temper, wing and closes types, 0.8 mm thick to match the band

S Clips and band loops Shall be fabricated type SS 316L, 20 mm wide by 0.5 mm thick banding

Breather springs SS 316L, 120 mm long Screws Type SS 316L, # 8 by 13 mm, Self

tapping slotted pan head with integral neoprene washer

Wire SS 316L annealed temper, 1.29 mm diameter

Fibrous adhesive 454 Sodium silicate based fibrous adhesive

B4




MATERIAL

MAXIMUM OPERATING

TEMP. C

DESCRIPTION

COMMENTS

Flashing compound/Sealant

93 Flexible non-shrinking type

Insulation cement 650 ASTM C 195, mineral fiber insulating cement

Insulation boxes and reusable insulation covers

500 See Sections 8.2 and 8.3

Floating Ring 6mm diameter stainless steel rod

Note 1 : Mineral fiber pipe insulation shall be used for acoustic insulation except inside of cradles where calcium silicate shall be used.

7.2 Schedule of Insulation Materials Application

TABLE 2

ITEMS TO BE INSULATED

MATERIAL TYPE

Pipe Elbows & Tees

Mineral fiber preformed pipe cover Mineral fiber preformed elbows

Flanges Removable covers as required

Valves flanged Insulation boxes/removable covers as required Vessels

Top heads Heads-other Shells 24 diameter > 24 diameter Manhole covers

Mineral fiber blanket Mineral fiber blanket Mineral fiber blanket Mineral fiber blanket Insulation boxes/removable covers

7.3 Insulation Thickness The following insulation thicknesses are those used for engineering design and the production of engineering drawings and documentation. The SUPPLIER shall be aware that a justified reduction in insulation thickness is practicable but an increase in thickness may be problematical (support standoffs, etc.)




Refer to Table 3 for Heat Conservation insulation thicknesses.

Table- 3 Heat Conservation Insulation Thicknesses (mm) (Mineral Wool Basis)

Pipe N.D. (in) Maximum Metal Surface Temperature (C)

100 150 200 250 300 350 400 450 500 plus

1/2 20 30 40 40 50 50 50 50 50 3/4 20 30 40 40 50 50 50 50 50

1 30 40 50 50 60 60 60 60 60 1 1/2 30 40 50 60 60 60 60 60 80 2 30 40 50 60 80 80 80 80 80 3 40 50 60 80 80 80 80 80 80 4 40 50 60 80 100 100 100 100 100 6 40 50 60 80 100 100 100 100 120 8 40 50 60 80 100 100 100 100 120 10 50 60 80 80 100 100 100 120 140 12 50 60 80 100 100 100 120 120 140 14 50 60 80 100 120 120 120 140 160 16 50 60 80 100 120 120 120 140 160 18 50 60 80 100 120 120 140 160 160 20 50 60 80 100 120 120 140 160 180

30+ and Flat Surface

80 80 100 100 120 140 160 180 180




Personnel protection as per table 4 is required for bare metal surface temperatures of: - -10C or below - +65C or greater

To avoid corrosion under insulation, insulation is not to be used for personnel protection. Expanded metal or wire gauges are suitable and to be used. However if insulation is to be used for personnel protection, mineral wool shall be used and thickness shall not be less than 25mm. Barrier system shall be consisting of perforated sheets or wire mesh. Barrier system used for personnel protection shall be painted according to Specification for Painting, Coating and Corrosion Protection The distances between the perforated metal sheets/guards and bare surface and insulation thickness for personnel protection shall be specified by the SUPPLIER.

Table - 4 Personnel Protection Insulation Thicknesses (mm) (Mineral Wool Basis)

Pipe N.D. (in)

Maximum Metal Surface Temperature (C)

Up to 250 300 350 400 450 500 550 600 650 plus

1/2 25 25 25 30 30 40 40 50 50 3/4 25 25 25 30 30 40 40 50 50

1 25 25 30 30 30 40 40 50 60 1 1/2 25 25 30 30 30 40 50 50 60 2 25 25 30 30 40 40 50 60 60 3 25 25 30 30 40 50 60 60 75 4 25 25 30 40 40 50 60 60 75 6 25 25 30 40 40 50 60 75 75 8 25 30 30 40 40 50 60 75 75 10 25 30 30 40 40 50 60 75 75 12 25 30 30 40 50 60 75 75 100 16 25 30 30 40 50 60 75 75 100 18 30 30 30 40 50 60 75 75 100 20 30 30 30 40 50 60 75 75 100 24 30 30 30 40 50 60 75 75 100

30 + and Flat Surface 30 30 30 40 50 60 75 75 100

SUPPLIER's Specification shall be approved by Company before placing any order.




8. INSULATION AND FITTINGS DETAILS Detail of Insulation and fittings shall be refer to other drawing and documents which will be issued separately.

9. ENVIRONMENTAL CONDITIONS

9.1 Ambient Conditions For ambient condition refer to Process Design Basis HEN-0000-PR-DB-0001 and

Structural Design Basis HEN-0000-ST-DB-0001.

9.2 Utility Supply Condition For utility supply condition refer to Process Design Basis HEN-0000-PR-DB-0001 and

Electrical Design Basis HEN-0000-EL-DB-0001

B4

1. General1.1 Definition1.2 Reference Documents

2. INSULATION AND ACCESSORIES REQUIREMENTS2.1 General Application on Unmanned Platform2.2 Insulation Material2.3 Removable Insulation Covers

3. GENERAL APPLICATION REQUIREMENTS3.1 General3.2 Un-insulated Surfaces3.3 Pressure Testing Considerations3.4 Valves and Flanges3.5 Insulation Supports

4. INSULATION OF PIPING4.1 Insulation Application4.2 Weatherproofing Application

5. INSULATION OF VESSELS AND REQUIREMENT5.1 Insulation Application5.2 Weatherproofing Application

6. MOISTURE PROTECTION7. INSULATION TABLES7.1 Schedule of Insulation and Accessory Materials7.2 Schedule of Insulation Materials Application7.3 Insulation Thickness

8. INSULATION and Fittings DETAILS9. Environmental Conditions9.1 Ambient Conditions9.2 Utility Supply Condition