Revision:
01A
BGC Insulation Specification
BGC Insulation Specification
Project
Originating Company
Document Title
Basrah Gas Company
BGC
BGC Insulation Specification
Document Number
0000-BGC-G000-GE00-G00000-CX-7755-00002
Document Revision
01A
Version Code
Document Status
Document type
Originator / Author
Security Classification
ECCN
Issue Date
Approved for Use
Specification
BGC Civil TA2
Restricted
EAR 99
01-05-2019
Revision History
Rev
Date of
Issue
Status
Originator
Description
01A
01-05-2019
AFU
BGC Civil
TA2
Checker
Approver
Nilesh Bushari
Piyushkumar Raninga
Ramsanker Natarajan
Brett Scull
Marcel Kuipers
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BGC Insulation Specification
1.
Revision:
01A
Table of Contents
2.
INTRODUCTION ..................................................................................................................................................................4
2.1. PURPOSE .............................................................................................................................................................................4
2.2. SAFETY & ENVIRONMENT ...................................................................................................................................................4
2.3. DEFINITIONS ........................................................................................................................................................................5
2.4. ACRONYMS AND ABBREVIATIONS .....................................................................................................................................5
3.
LEGISLATION, CODES, STANDARDS AND REFERENCES ....................................................................................................6
3.1. LEGISLATION, CODES, STANDARDS AND REFERENCES .......................................................................................................6
3.2. RESPONSIBILITIES ................................................................................................................................................................7
3.3. ORDER OF PRECEDENCE ......................................................................................................................................................7
4.
QUALITY ASSURANCE AND QUALITY CONTROL ...............................................................................................................8
5.
TECHNICAL REQUIREMENTS ..............................................................................................................................................8
5.1. GENERAL ..............................................................................................................................................................................8
5.2.
Table 5-1: INSULATION CODE .................................................................................................................................10
5.3.
GUIDELINES FOR THE SELECTION OF INSULATION MATERIAL ..............................................................................10
5.4.
UNINSULATED SURFACES ........................................................................................................................................11
5.5.
EXTENT OF INSULATION FOR PIPING AND EQUIPMENT........................................................................................12
6.
INSULATION REQUIREMENTS ..........................................................................................................................................12
6.1.
A MINERAL WOOL PIPE, SLAB AND MATTRESS INSULATION ................................................................................12
6.2.
PREFORMED FOAM FOR COLD INSULATION ..........................................................................................................14
6.3.
PROTECTIVE COVERING / CLADDING / JACKETING ................................................................................................14
6.4.
FASTENERS AND MISCELLANEOUS INSULATION ACCESSORIES ............................................................................17
6.5.
FABRICATION ADHESIVES, MASTICS AND METAL SEALANTS ................................................................................17
6.6.
REMOVABLE INSULATION COVERS .........................................................................................................................17
6.7.
PREFORMED HD PIR/PUR FOAM FOR PIPE SUPPORTS IN COLD INSULATION SYSTEM: ......................................17
7.
INSTALLATION, HOT INSULATION (Heat conservation, Personnel Protection & Electric traced) ...............................18
7.1.
GENERAL ..................................................................................................................................................................18
7.2.
PIPING INSULATION .................................................................................................................................................18
7.3.
EQUIPMENT INSULATION .......................................................................................................................................19
7.3.1. Shell ..........................................................................................................................................................................20
7.3.2. Bottom .....................................................................................................................................................................20
7.3.3. Heads .......................................................................................................................................................................20
7.3.4. Miscellaneous (Special Items, Manholes, Nozzles, etc ..........................................................................................21
7.4.
MACHINERY INSULATION ........................................................................................................................................21
7.5.
INSTRUMENT INSULATION......................................................................................................................................21
7.6.
VAPOUR BARRIER ....................................................................................................................................................21
7.7.
INSULATION FINISH JACKETING ..............................................................................................................................21
7.8.
REQUIREMENTS FOR PERSONNEL PROTECTION INSULATION ..............................................................................27
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BGC Insulation Specification
7.9.
Revision:
01A
ADDITIONAL REQUIREMENTS FOR ELECTRICAL TRACED INSULATION .................................................................27
8.
INSTALLATION, COLD INSULATION .................................................................................................................................27
8.1.
PIPING INSULATION .................................................................................................................................................27
8.2.
EQUIPMENT INSULATION .......................................................................................................................................28
9.
STORAGE AND HANDLING OF INSULATION MATERIALS ...............................................................................................28
10. INSPECTION ......................................................................................................................................................................29
10.1. CONTROL PRIOR TO THE APPLICATION ..................................................................................................................29
10.2. CONTROL DURING APPLICATION ............................................................................................................................29
10.3. INSPECTION CRITICAL ..............................................................................................................................................30
10.4. FINAL CONTROL .......................................................................................................................................................30
10.5. IN SERVICE INSPECTION ..........................................................................................................................................30
11. WARRANTY AND PERFORMANCE GUARANTEE ..............................................................................................................30
12. DOCUMENTATION ............................................................................................................................................................30
13. INSULATION ATTACHMENT METHODS, INSULATION FINISH REQUIREMENT AND INSULATION THICKNESS TABLE 31
13.1. Table 13-1: INSULATION ATTACHMENT METHODS AND MATERIALS (Mineral wool)...........................................31
13.2. Table 13-2: INSULATION FINISH REQUIREMENTS ..................................................................................................32
13.3. Table 13-3: INSULATION FINISH REQUIREMENTS (continued) ............................................................................33
13.4. Table 13-4: INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT ........................................................35
13.5. Table 13-5: INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT .........................................................36
13.6. Table 13-6: INSULATION THICKNESSES (mm) ELECTRICAL HEAT TRACING (ET)- ...................................................37
13.7. Table 13-7: INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT .........................................................38
13.8. Table 13-8: REFERENCE TABLE FOR THE LAYERING OF COLD INSULATION.........................................................40
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BGC Insulation Specification
2.
2.1.
Revision:
01A
INTRODUCTION
PURPOSE
This document defines the minimum technical requirements for insulation of vessels, equipment,
piping and pipe fittings, including preparation and application. The insulation may be for energy
conservation, heat tracing and / or for personnel protection. Insulation for personnel protection
applies to surface temperatures above 60°C during normal operation. Insulation for energy
conservation may apply at lower temperatures. It is intended that insulation shall require only
minimum maintenance during the 25-year design life of the project.
In general, SUPPLIER’s scope of work for insulation systems shall include, but not be limited to,
the following:
•
Design of specific details of insulation jacketing / fastening;
•
Quality assurance and control;
•
Procurement / supply of all materials;
•
Provision of all required test equipment, utilities and consumables necessary to perform
the work.
SUPPLIER shall supply all materials as necessary to complete the successful insulation of the
schedule of items contained within the project.
Equipment and piping belonging to a package unit shall be insulated in accordance with this
specification under the scope of work of the package equipment SUPPLIER. SUPPLIER shall
guarantee the proper functioning of their materials, application, protection coatings and work for
the guarantee period. During the guarantee period, SUPPLIER shall repair any defects in his work
to the satisfaction of COMPANY.
SUPPLIER shall complete the work in accordance with this specification and to the satisfaction of
COMPANY.
CONTRACTOR shall fully comply with COMPANY standards and specifications requirements,
listed in section 3.1 of this specification, and shall not use any other conflicting specification. In
case of any conflict, COMPANY Standards & Specifications shall prevail.
2.2.
SAFETY & ENVIRONMENT
Safety shall be of paramount importance at all times throughout the fulfilment of the requirements
of this specification. SUPPLIER shall observe good working practice and ensure that all activities
are carried out in such a way that all risks are as low as reasonably practicable. SUPPLIER shall
comply with all industry and country based regulatory requirements to ensure a safe working
environment.
Following Purchase Order (PO) award CONTRACTOR is to provide detailed policies, plans and
procedures for ensuring that all safety requirements, laws, regulations, ordinances, etc., of the
place or country pertaining to the work being performed are strictly maintained.
The supplied COMPANY based safe working practices and requirements shall also be utilized and
complied with throughout the execution of the contract.
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BGC Insulation Specification
Revision:
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Further details relating to the particular safety and safety documentation requirements shall be
found in the project specific documentation.
All the correct PP (personal protection) should be made available to the operator before the work
commences. Checks should be made to ensure that the operator is suitably qualified to carry out
the necessary work. No insulation materials to contain Asbestos.
2.3.
DEFINITIONS
General Definitions used for this specification:
Name
2.4.
Definition
COMPANY
The COMPANY shall mean BASRAH GAS COMPANY (BGC)
MANUFACTURE
Manufacturer is the party that manufactures the insulation product(s) and
Supplies to Supplier/INSULATION CONTRACTOR to perform the duties
specified by the COMPANY.
VENDOR/SUPPLIER
Supplier is the party that supplies equipment and services to perform the
duties specified by the COMPANY.
INSULATION
CONTRACTOR
Any person or persons, firm, partnership, corporation or combination
thereof, including vendors who perform the insulation work
SUB-CONTRACTOR
Any other party appointed by CONSTRUCTION/INSULATION
CONTRACTOR for supply of ant work / services
SHALL
Is to be understood as mandatory in relation to the requirements of this
specification
SHOULD
Is to be understood as recommendation in relation to the requirements
of this specification
ACRONYMS AND ABBREVIATIONS
AIV
Acoustic Induced Vibration
ASTM American Society for Testing of Material
bbls
Barrels
BGC
Basrah Gas Company
CC
Cold Conservation
CPT
Coating Procedure Testing
CRA
Corrosion Resistant Alloy
DFT
Dry Film Thickness
HC
Heatt Conservation
ISO
International Standards Organisation
ITP
Inspection and Test Plan
KAZ
KHOR AL ZUBAIR
MoO
Ministry of Oil
MRB
Manufacturing Record Book MMscf/d
Million Standard Cubic Feet per Day
NACE National Association of Corrosion Engineers
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BGC Insulation Specification
NCR
Non-conformance Report
NORSOK
3.
3.1.
Revision:
01A
the Norwegian Shelf’s Competitive Position
PIR
Polyisocyanurate
PO
Purchase Order
PP
Personnel Protection
PQT
Procedure Qualification Testing
PUF
Polyurethane Foam
QC
Quality Control
SI
The International System of Units
SSPC
The Society for Protective Coatings
Tcf
Trillion Cubic Feet
LEGISLATION, CODES, STANDARDS AND REFERENCES
LEGISLATION, CODES, STANDARDS AND REFERENCES
This specification will be used in conjunction with the latest edition (at the date of Contract award) of
the following codes, standards and specifications and shall establish the minimum requirement for the
execution of the work. VENDOR/CONTRACTOR may use alternate standards that meet or exceed
those listed upon COMPANY’s approval.
Document
Number
Title
ASTM C795
Thermal Insulation for Use on Contact Austenitic Stainless Steel
ASTM C871
Chemical Analysis of Thermal Insulation Materials for Leachable
Chloride, Fluoride, Silicate, and Sodium Ions
ASTM C1335
Measuring Non-Fibrous Content of Man-Made Rock and Slag Mineral
Fiber Insulation
ASTM C692
Standard Test Method for Evaluating the Influence of Thermal Insulations
on External Stress Corrosion Cracking Tendency of Austenitic Stainless
Steel
Standard Specification for Mineral Fiber Pipe Insulation
ASTM C547
ASTM A463
Standard Specification for Steel Sheet, Aluminium Coated, by the Hot-Dip
Process.
ASTM A480
General Requirements for Flat-Rolled Stainless Steel Plate, Sheet and Strip.
ASTM A526
Standard Specification for Steel Sheet, Zinc Coated (Galvanized), by the
Hot- Dip
Process, Commercial Quality.
Standard Specification for Mineral Fibre Pipe Insulation.
ASTM A592
ASTM A792
Standard Specification for Steel Sheet, 55% Aluminium-Zinc Alloy, Coated
by the Hot Dip Process.
ASTM B209
Standard Specification for Aluminium and Aluminium-Alloy Sheet and Plate.
6
BGC Insulation Specification
ASTM C612
Standard Specification for Mineral Fiber Block and Board Thermal Insulation.
ASTM C647
Standard Guide to Properties and Tests of Mastics and Coating Finishes for
Thermal Insulation.
ASTM C680
Standard Practice for Estimate of the Heat Gain or Loss and the Surface
Temperatures of Insulated Flat, Cylindrical, and Spherical Systems by Use
of Computer Programs.
Standard Specification for Spray-Applied Rigid Cellular Polyurethane
Thermal Insulation.
ASTM C1029
ASTM E84
Standard Test Method for Surface Burning Characteristics of Building
Materials.
BS - 9585
Thermal insulating materials specification for bonded man-made mineral
fiber slabs
CINI
Stichting Commissie Isolatie Nederlandse Industrie
EN 13468
Thermal Insulating Products for Building Equipment and Industrial
Installations. Determination of Trace Quantities of Water-Soluble Chloride,
Fluoride, Silicate, Sodium Ions and pH.
ISO 3575
Continuous Hot-dip Zinc-coated Carbon Steel Sheet of Commercial, Lockforming and Drawing Qualities.
ISO 5000
Continuous Hot-dip Aluminium-silicon Coated Cold-reduced Carbon Steel
Sheet of Commercial and Drawing Qualities.
ISO 9001
Quality Management Systems – Requirements.
ISO 9364
Continuous Hot-dip Aluminium/zinc Coated Steel Sheet of Commercial,
Lock-forming and Structural Qualities.
ISO 12241
Thermal Insulation for Building Equipment and Industrial Installations –
Calculation Rules.
ISO 129445:2007
Paints and Varnishes - Corrosion Protection of Steel Structures by
Protective Paint Systems – Part 5: Protective Paint Systems.
ISO 14015
Specification for the Design and Manufacture of Site Built, Vertical,
Cylindrical, Flat-Bottomed, Above Ground, Welded, Steel Tanks for the
Storage of Liquids at Ambient Temperature and Above.
Acoustic Insulation for Pipes, Valves and Flanges.
ISO 15665
NORSOK M501:2012
NACE SP0108
3.2.
Revision:
01A
Surface Preparation and Protective Coating.
Corrosion Control of Offshore Structures by Protective Coatings.
RESPONSIBILITIES
The party whoever performs (directly/indirectly) the insulation activity those are responsible for
complying with this specification requirements.
3.3.
ORDER OF PRECEDENCE
VENDOR shall notify CONTRACTOR and COMPANY of any conflict between this specification, the
related datasheets, Material Requisition, the Codes, Standards and any other Specifications
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BGC Insulation Specification
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01A
referenced herein. Resolution and / or interpretation of precedence shall be obtained from
CONTRACTOR and COMPANY in writing before proceeding with the design or Manufacture.
The order of precedence shall be:
•
Iraq Statutory laws and regulations,
•
Project specific datasheet(s) (for the component(s) being welded),
•
This specification,
•
NORSOK M-501:2012;
•
ISO 12944-5:2007;
Other codes and standards listed in section 3.1 of this specification.
In case of conflict between above documents, the most stringent requirement shall apply. In such
cases, VENDOR shall provide its interpretation in writing of the most stringent requirement for
COMPANY / CONTRACTOR’s approval. In all such cases of conflict, COMPANY / CONTRACTOR
decision shall be final.
4.
QUALITY ASSURANCE AND QUALITY CONTROL
CONTRACTOR shall operate a quality system, covering the scope of supply, to ensure that the
requirements of this specification are met. Unless otherwise stated in the PO, CONTRACTOR's quality
system shall be in accordance with ISO 9001 or approved equivalent. The effectiveness of the quality
system and CONTRACTOR’s compliance with it will be subject to continuous monitoring by
COMPANY, and in addition, may be audited.
All testing and inspection activities shall be indicated in the Inspection & Test Plans (ITP).
COMPANY shall have the right to undertake inspection or testing of the pipe during any stage of
manufacture and to undertake inspection or testing of raw materials.
CONTRACTOR shall ensure that all documents relating to this specification and the PO are
collated, indexed and retained for subsequent presentation to COMPANY in the form of a
Manufacturing Record Book (MRB).
5.
5.1.
TECHNICAL REQUIREMENTS
GENERAL
All carbon steel and stainless steel under insulation shall be suitably protected with a coating system
as per BGC External Painting Specification1000-BGC-G000-ISGP-G00000-RA-7754-00001. All
piping and equipment which require only personnel protection shall be coated suitably as same as
un-insulated according to project painting specification.
Insulation installation work shall not commence until surface preparation and coating of the surface
to be insulated has been completed and the coating system has fully cured.
All surfaces which are to be insulated shall be cleaned of dirt, grease, foreign material primed and
dried before insulation is applied. All insulation shall be protected from moisture and weather before
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BGC Insulation Specification
Revision:
01A
and during installation. If applied insulation should get wet before it is jacketed, it shall be
thoroughly dried by heating or other suitable means before it is sealed with weatherproofing.
The Insulation Contractor/Applicator shall be responsible for dry cleaning of surfaces to be
insulated prior to application of insulation. Insulation shall not be applied over wet surfaces.
Sub-contractor's proposals shall detail the proposed design and define the fabrication methods,
including the extent of field assembly required.
All materials shall be new and previously used materials shall not be used. Sealants, mastics and
adhesives shall be supplied in factory sealed containers.
Materials selected for jacketing, cementing, sealing and coating shall be compatible with the
insulation material, temperature conditions, atmospheric conditions and intended functions of the
insulation system.
At all flanged joints, the pipe insulation shall be cut back or beveled at such an angle as to permit
removal of the studs from either side of the flange without damage to the adjacent insulation. The
recommended Bolt clearance from the flange to the insulation jacketing shall be at least the bolt
length plus an additional 30 mm. If hydraulic bolt tension or torque equipment is used, a greater bolt
clearance may be required.
All materials shall be installed in accordance with this standard and the manufacturers
recommended methods.
Insulation materials will be protected against the elements at all times from delivery to finish
weather coating. Any insulation damaged as a result of improper protection from weather will not
be accepted and shall be replaced by the insulation subcontractor at the subcontractor’s expense.
Thermal insulation types are listed in Table 5 .1 for external surfaces of piping and equipment.
Insulation type is based on the intended application (and type shall be confirmed as per Process
requirement) and is specified on the piping isometric drawings, P&ID, and on the equipment,
drawings issued by the COMPANY.
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BGC Insulation Specification
5.2.
Table 5-1: INSULATION CODE
CATEGORY
TAG
1
Cycling or Dual Process temperature between -20 and 320°C (or lower)
2
Process Temperature between 50 °C and 120°C
3
Process Temperature between -5 °C and 49°C
4
Process Temperature between 121 °C and 175°C
5
All process Temperatures > 175°C
6
All process Temperatures < -5°C
N
No Insulation required for Process temperature reasons
REQUIREMENT
TAG
E
T
PROCESS TEMPERATURE
DESCRIPTION REQUIREMENT
Thermal Conservation (Hot and Cold) of Equipment and Piping
Temperature Control of processes or Products e.g. To avoid Condensation,
Solidification, or Too high a viscosity. (Heat Traced)
Personnel protection i.e. On surfaces operating temperature above 70°C within
2100 mm (7 ft.) above grade or platforms and 900 mm (3 ft.) horizontally from
the periphery of platforms, walkways, or ladders
Preventing or Reducing damage to Equipment and piping from exposure to
freezing conditions.
P
F
N
Not Required
A
Acoustic
CONTACT OR
NON-CONTACT
TYPE OF
INSULATION
C
N
5.3.
Revision:
01A
DESCRIPTION
Contact type Insulation
Non-Contact type Insulation is an insulation system in which there is limited
contact between bare surface of Pipe/Equipment and the insulation material.
GUIDELINES FOR THE SELECTION OF INSULATION MATERIAL
•
For operating temperatures between 20 C and 600 C mineral wool product (as listed in the
Table 5.2) should be used.
•
For operating temperatures between 600 C and 750 C, calcium silicate products may be
considered, if economically justified.
•
For operating temperatures above 750 C, calcium silicate products should be used.
•
Process control, e.g. to avoid condensation, solidification, or too high viscosity, rapid
temperature variations.
10
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BGC Insulation Specification
•
Personnel protection, for piping and equipment having an operating temperature of > 60 C or
< -10 C if the location presents a danger to personnel.
•
Noise reduction of piping and equipment where ever applicable.
Table 5-2: INSULATION MATERIAL SELECTION
REQUIREMENT TAG
Cat
E
Temperature range
a
1 g Cycling or Duel
o
process temp -20 and
r
320°C
y
2 T From 50 °C to 120°C
A
3 G from -5°C to below
50°C
T (heat
tracing)
P
F
A
N/A
N/A
N/A
N/A
N/A
Mineral wool
Mineral wool
N/A
N/A
PIR/PUF with
vapor barrier
Mineral
wool
N/A
N/A
N/A
Mineral
wool
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
4
from 121 °C to 175°C
Mineral wool
PIR/PUF,
Unsealed & No
vapor barrier
Mineral wool
5
> 175°C
Mineral wool
Mineral wool
6
< -5°C
PIR/PUF with
vapor barrier
N/A
Mineral
wool
N/A
N
No insulation
N/A
N/A
N/A
Insulation and finish requirements for piping and equipment shall be as specified herein. In
general, Thermal conservation (Mineral wool) and Personal Protection insulation (Mineral
wool) of thickness greater than 3’’ (75 mm) shall be installed with double layers. For Cold
insulation (PUF), number of insulation layer shall be as per Table 13-8.
If any conflicts between the requirements defined herein and those indicated in the
piping/equipment drawings shall be brought to the attention of COMPANY for resolution prior to
application of the insulation system.
The term "equipment" includes vessels (towers, drums, reboilers, and exchangers), machinery
(pumps, compressors, turbines) and tanks (vertical, cylindrical storage tanks).
5.4.
UNINSULATED SURFACES
Following surfaces shall be left uninsulated
•
Pumps;
•
Name Plates;
•
Air-Cooled Equipment;
•
Compressors
•
Steam Traps
•
Name Plates
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BGC Insulation Specification
5.5.
•
Expansion Joints;
•
Rotating Joints;
•
Code inspection Plates;
•
Stampings
EXTENT OF INSULATION FOR PIPING AND EQUIPMENT
Table 5.3: EXTENT OF INSULATION FOR PIPING AND EQUIPMENT
INSULATION TYPE
Thermal
Personnel
Application Description
Heat
ConservationProtection
Trace
Hot Insulation
YES
As
YES
(Note-1)
(Note-1)
Straight or Bent Pipe,
applicable
For steam service piping
(Note-1)
Flange manual valves, Flange control valves
YES
NA
NA
and flange instruments
For ET (Electrical traced) piping
Flange manual valves, Flange control valves
and flange instruments
NO
NO
NO
For Piping other than steam
Flange manual valves, Flange control valves
and flange instruments
Manway cover on Vessels
NO
NO
NO
As
applicable
NO
(Note-1)
NO
NO
NO
NO
YES
As applicable
NA
YES
As applicable
YES
Pump Casings
NO
NO
NO
Compressors
[Note 2]
[Note 2]
NO
Relief Valves
Heat Exchanger Shell and Fixed Rear
Bonnet Surfaces
Heat Exchanger Channel, Channel Cover,
Channel Bonnet and Channel/Body Flange
Joints
NOTES TO TABLE 5-3:
1.
2.
3.
6.
6.1.
Insulation shall be done up to neck in tapered shape so as to permit removal of studs without damaging the adjacent insulation.
Insulation shall be furnished in accordance with the equipment supplier's recommendations.
For Cold insulation, all pipe fittings, flanged joints and valves shall be completely insulated as described in section 12 of this document.
INSULATION REQUIREMENTS
A MINERAL WOOL PIPE, SLAB AND MATTRESS INSULATION
Mineral wool is the considered material for heat conservation, Personal protection, and Electric
traced (ET), when the process temperature is 50°C and above.
Mineral wool insulation for pipe sectional insulation, slab and mattress shall satisfy the following
requirements:
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BGC Insulation Specification
PROPERTY
Revision:
01A
REQUIREMENT
3
Density
128 kg/m , water repellent
pH
6 – 10.5 (when wet)
Leachable total chloride
content
10 ppm (10 mg/kg) max when measured in accordance with
ASTM C871
Thermal conductivity
Tested in accordance with ASTM C177
Shot content
20% max. (ASTM C1335)
Thermal insulation products shall be qualified for use on austenitic stainless steel in accordance
with ASTM C795. The material manufacturer shall demonstrate that the material that will be
furnished for this project has passed the pre-production corrosion test in accordance with ASTM
C692. The material manufacturer shall also furnish a chemical analysis in accordance with
ASTM C871
The Material shall be suitable to use at specified minimum/maximum operating temperature of
piping/Vessels and others.
Mineral wool molded pipe segments shall conform to ASTM C547, Type II, except non-fibrous
(shot) content is limited to 20% max.
Mineral wool mattress of same thermal performance as sections shall only be used on irregular
equipment and vessel Heads or other complex shapes as approved by COMPANY. Mineral wool
wire mesh faced mattress shall have one side stitched with galvanized wire and 25 mm
hexagonal pattern. On stainless steel piping and equipment, stainless steel wire mesh shall be
applied using stainless steel wire.
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BGC Insulation Specification
6.2.
Revision:
01A
PREFORMED FOAM FOR COLD INSULATION
Preformed Polyurethane (PUF), Polyisocyanurate (PIR) foam (Closed cell, CFC free) of minimum
density 45 Kg/m3 is the considered material for Cold insulation.
COLD INSULATION MATERIAL PROPERTIES
Temperature
Range
Insulation
Material
pH Range
Min
(°C)
Max
(°C)
Minimum
Density (kg/m3)
Cellular Glass
6 - 10
-260
430
125 (±10%)
0.048
Polyurethane
Foam (PUF)
6 - 10
-200
120
40
0.024
6-9
-200
120
40
0.024
Polyisocyanurate
(PIR)
6.3.
Maximum
Conductivity
at (200°C )
(W/mK)
PROTECTIVE COVERING / CLADDING / JACKETING
Aluminium.
The weather barrier shall be made from Aluminium, with the following characteristics:
•
•
•
Thickness: 0.6 mm for piping up to and including DN 300 (12”)
Thickness: 0.8 mm for piping over DN 300 (12”)
Thickness: 0.8 mm for equipment (i.e. vessels, exchangers, tanks etc.)
The sheet shall be fastened to the supports underneath by means of stainless steel self-tapping
screws with reinforced neoprene washers.
Aluminium jacket on vertical vessels over 36’’ diameter shall have a 1-1/4’’ (32mm) corrugation.
Aluminium jacketing shall not be used in combination with passive fire protection
All cut-outs are to be suitably sealed with caulking. Aluminium protective covering installation
shall be as chapter 7.7
Aluminized steel jacketing
Aluminized steel jacketing shall have Coating Type T2-300 in accordance with ASTM A463/A463M.
The aluminized steel jacketing mechanical properties, chemical composition and corrosion resistance
shall be in accordance with ASTM A463/A463M.
Additional requirements for aluminized steel jacketing shall be as follows:
•
the copper, nickel and manganese content of the coating bath less than 0.040 % wt;
•
all cut edges of the aluminized steel Type T1 coated to ensure corrosion protection.
The aluminum coating shall not crack, flake or peel during the required mechanical processing.
Aluminized steel jacketing shall not be used in climates where salt-containing condensation can
evaporate due to high daytime temperatures.
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BGC Insulation Specification
Revision:
01A
Aluminized steel jacketing shall be at least 0.8 mm (0.03 in) thick and sections at least 500 mm width
(20 in).
Stainless-steel jacketing
Stainless-steel Type 304 or Type 316 in accordance with ASTM A240 shall be used for stainless-steel
jacketing.
Mechanical and chemical properties and corrosion resistance for stainless-steel jacketing shall be in
accordance with ASTM A240.
The thickness of the stainless-steel jacketing shall be as per Table 6.1.
Table 6.1 Thickness of stainless-steel jacketing
Outside diameter
insulation in mm
Minimum thickness of the SS
sheeting in mm
< 140
0.5
140 – 300
0.6
>300
0.8
Removable covers (such as for flanges, valves) shall be made of 0.8 mm (0.03 in) sheets.
Refer to CINI 3.1.5.
UV curable Glass Reinforced Plastic (GRP)
Weather resistant, UV curable, GRP jacketing shall be a laminate based on glass fiber reinforced
polyester resins, which cures by UV-radiation.
The surface to be finished with UV curable GRP shall be even, clean and dry.
Joints in the finishing material have an overlap of minimum 30 mm (1¼ in).
The finishing layer shall be of even thickness across the surface.
UV curable GRP material requirements shall be as per Table 6.2
Table 6.2 UV curable GRP material properties
Data
Acceptable level
Temperature range
0-90 °C (32-194°F)
Weight
2 kg/m2
Bending strength
130 MPa (18850 psi)
Tensile strength
50 MPa (7250 psi)
Elongation at break
1%
Compressive strength
125 MPa (18130 psi)
Impact resistance
57 kJ/m2
Temper
45 Barcol
Layer thickness
1.5 mm
Applicable standard
15
BGC Insulation Specification
Data
Acceptable level
Applicable standard
Water vapour permeability
0.001 g/(m2.h.mmHg)
ASTM E96/E96M proc. E
Flame spread index
 20
ASTM E84
Class I
BS 476-7
 32 °C (90 °F)
ASTM D93
Flash point
Revision:
01A
In cold services, UV curable GRP shall be applied over a multiplex foil vapour barrier.
Packaging shall be such that the material is fully protected against light.
Packaging shall protect against damage during transport and storage.
For curing, natural UV light or UV lamps shall be used.
Vapour barriers
For vapour barriers, the following materials may be used:
•
multiplex foil;
•
butyl rubber tape with aluminium backing;
•
vapour barrier mastic, latex, polymer, bitumen or elastomer based.
Multiplex foil shall have a thickness as follows:
•
25 μm (1 mil) polyester film;
•
50 μm (2 mil) aluminium foil;
•
25 μm (1 mil) polyester film;
•
total thickness 100 μm (4 mil).
Water vapour permeability shall be in accordance with ASTM E96/E96M, procedure E, maximum
10*10-6 g/m2.h.mm.Hg.
Flexible tapes and foils
Aluminium foil provided with an adhesive layer and covered with a reinforced protective foil may
be use as flexible jacketing material in a temperature range of -30 °C – 120 °C (-20 °F – 250 °F).
Aluminium foil provided with an adhesive layer and covered with a reinforced protective foil shall
comply with all of the following:
•
tensile strength 20 N/mm (150 lbf/in) or higher in accordance with ASTM D882;
•
elongation at break 8% or higher than in accordance with ASTM D882;
•
puncture resistance at least 350 N (78 lbf) in accordance with ASTM D1000;
•
water vapour permeability 0 in accordance with ASTM E96/E96M.
16
BGC Insulation Specification
6.4.
Revision:
01A
FASTENERS AND MISCELLANEOUS INSULATION ACCESSORIES
All metallic accessory materials (bands, seals, screws, etc.) shall be austenitic stainless steel,
Type 316, unless noted otherwise.
Self-tapping screws shall be in accordance with the jacketing material 4.8 x 13 mm (ISO 1481 type
C).All banding shall be furnished deburred.
Tie wire shall be 1.0 mm minimum diameter, stainless steel 316.
Sheet metal screws for fastening sheet to structure or sub-girt shall be austenitic stainless steel
with hex drive head and integral EPDM washer or Pan Head with EPDM washer.
For cold insulation, Tape for fastening insulation shall be 200gr/25 mm wide pressure sensitive glass
filament reinforced tape.
Weather barrier mastic shall be capable of being applied by trowel, glove or brush. It shall be a
non-corrosive, heat resistant, fire retardant plastic suitable for continuous exposure to 82°C
minimum. Mastic shall be furnished in Aluminium grey (Foster 90-66 or similar), unless
otherwise specified.
Nonmetallic jacketing sealants, synthetic tape and contact adhesives should be selected and
installed to the Jacketing Manufacturer/Supplier’s recommendations.
For temperature < 300 °C (572 °F), a one component polysiloxane based permanent flexible
sealer shall be used.
For temperatures > 300 °C (572 °F), a sodium silicate-based sealer shall be used.
6.5.
FABRICATION ADHESIVES, MASTICS AND METAL SEALANTS
All adhesives, mastics for cold insulation and metal sealants shall be suitable to temperature
conditions, atmospheric conditions and intended functions of the insulation system.
6.6.
REMOVABLE INSULATION COVERS
If insulation specified for Flanges, valves, man ways and other item where insulation would
interfere with normal operation, removable insulation covers should be provided.
Insulation applicator can adopt his own good engineering design in providing the removable
insulation covers, but it should be in two halves with locks/pins wherever applicable. The design
shall be reviewed and approved by the COMPANY.
6.7.
PREFORMED HD PIR/PUR FOAM FOR PIPE SUPPORTS IN COLD INSULATION
SYSTEM:
The insulation thickness at the supports shall be the same as the pipe insulation.
The material of the insulation sections at the supports shall match with the adjacent insulation
system. In doing so, a similar material with a higher compressive strength may be applied.
The dimensions of the pipe support shall be calculated in detail with the following governing factors:
a.
the maximum design load of the support, based on two span lengths;
b.
compressive strength of the insulation material;
c.
safety factor 5:1 for the compressive strength at minimum operating temperatures;
17
BGC Insulation Specification
d.
e.
f.
g.
pipe;
h.
i.
Revision:
01A
load transfer based on 60° load spread;
load spread underneath the brackets / steel support cradles during fixing of the bolt;
clamping forces on the pipe, such that the support moves with the pipe;
length of the base plates of the support based on maximum contraction/expansion of the
the support shall not move across the insulation system (cladding);
the pipe shall not move inside the insulation system.
The HD PIR/PUR foam at the bottom part of the support shall have a minimum density of the
following:
a.
160 kg/m3 (10 lbm/ft3) for pipe diameters up to 200 mm (8 in);
b.
224 kg/m3 (14 lbm/ft3) for pipe diameters between 200 mm (8 in) and 600 mm (24 in);
c.
320 kg/m3 (20 lbm/ft3) for pipe diameters above 600 mm (24 in).
The HD PIR/PUR foam at the top part of the support shall have a minimum density of 160 kg/m3
(10 lb/ft3).
Pipe support design and application in cold insulation systems shall be subject to approval by the
Principal.
For pipe supports in cold service, reference is made to CINI 5.1.09, 5.1.10 and 5.1.11.
For pipe supports in cryogenic service, reference is made to CINI 10.5.01 and 10.5.02.
7.
7.1.
INSTALLATION, HOT INSULATION (Heat conservation, Personnel Protection & Electric traced)
GENERAL
The installation of high temperature insulation systems shall be in accordance with the
requirements of this standard. Functionally equivalent application practices, which are technically
acceptable alternates to the requirements herein, may only be used when identified in the
bidder's proposal and approved by the COMPANY.
Application temperature for sealants and adhesives shall be within the acceptable
temperature range recommended by the manufacturer and shall be in strict accordance with the
manufacturer's current data sheets.
The use of broken or otherwise defective insulation shall not be permitted. All insulation shall be
smooth and free from cracks, voids, gaps.
Care shall be exercised in the handling and application of materials so as not to splatter
concrete foundations, paving, structural steel, equipment items, gage glasses, instruments,
machined surfaces, valve stems and packing. Insulation Contractor shall be responsible for all
overspray or splatter problems, and liabilities associated with corresponding corrective actions.
Extent of insulation shall be as indicated in Table 13-2
7.2.
PIPING INSULATION
When a thickness of insulation of 100 mm or more is required, the material shall be applied in
several layers. Each layer shall have a minimum thickness of 50 mm and shall be of approximately
the same thickness as the other layers.
18
BGC Insulation Specification
Revision:
01A
The insulating material shall be outermost wrapped dry around the piping, without underlay,
leaving the wire mesh. Each layer of double layer insulation shall be held in place separately. The
insulation shall be performed and of the correct size. Voids shall be filled with pieces of the same
material or with suitable insulating cement.
Insulation shall be fastened to the piping with 1.6 mm diameter 316L stainless steel wire or 12 x
0.6 mm 316L. Stainless steel straps every 300 mm maximum.
The ends of each piece of wire shall be twisted together and embedded in the insulation; and the
edges of the wire mesh shall be subsequently sewn together with 1.6 mm 316L stainless steel
wire.
Joints shall be staggered and the union of the end surfaces of the pipe covers or boards shall
leave no gaps. Insulation adjacent to flanges in piping shall be terminated to allow removal of bolts
without damage to insulation. Minimum free space from the flange to the nearest part of the
insulation shall be equal to the bolt length +25mm. The termination of the weather protection shall
be waterproof.
Valves, flanges and other fittings, when insulation is required, may have removable insulation,
which is achieved either by using removable boxes filled with insulation material, kept in place by
stainless steel wire-mesh, or by a semi-fixed insulation, the gaps of which are filled with wellpacked loose insulation, and with boards wound round the whole, in order to obtain a cylindrical
outside surface for the flanges and a bi-cylindrical outside surface for the valves.
On vertical lines or lines inclined at more than 45º from horizontal with straight runs of more than 3
meters, an
insulation support shall be provided at the bottom and every 3 meters after. Supports shall be
designed and
located to allow removal of bolts at flanged joints. Support designs shall be submitted to
COMPANY for approval.
7.3.
EQUIPMENT INSULATION
Insulation shall be applied in one or two layers to the thicknesses specified. All joints shall be
carefully fitted. Circumferential joints shall be staggered for horizontal equipment and longitudinal
joints shall be staggered for vertical equipment. In double layer applications, all joints in the outer
layer shall be staggered with respect to inner layer joints.
The insulation installation shall be as specified in chapter 13
Unless otherwise specified, vertical equipment support legs and lugs and saddle supports for
horizontal equipment shall not be insulated.
Insulation on skirt supported vertical vessels shall be extended past the bottom tangent line,
down the exterior surface of the skirt to the bottom insulation support ring. Vessels having skirt
inside diameters exceeding 1200 mm shall have the corresponding inside skirt surface insulated.
Equipment nozzles connected to bare piping shall have the equipment insulation system
terminated on the nozzle and finished with a metallic cover. The insulation shall be applied to the
nozzle prior the application of insulation to the shell of the vessel. In case of double layer
application, the installation of the insulation on the nozzle shall be applied first for each
consecutive layer in order to form a staggered joint at the nozzle/shell juncture.
19
BGC Insulation Specification
Revision:
01A
For insulation of vessel shells, rigid pipe sections or rigid curved radius segments shall be
utilized up to the maximum commercially available size. Beveled block insulation for vessel
shells shall be used only when shell diameters exceed the commercially available size of
curved radius segments. Edge beveling of block shall be in accordance with ASTM C450
Adjunct ADJC0450. Bevels may be applied to either one or both block edges.
Small voids around nozzles and other projections through the insulation on the shell and
heads shall be packed with suitable material.
Heat exchangers shall be insulated in a manner similar to horizontal vessels. Heads on
exchangers that are removable shall be insulated to allow access to the bolts with minimum
damage to the insulation. Flanged ends shall be insulated with a flat cover that is removable.
Code or other nameplates shall not be covered by insulation.
7.3.1.
Shell
Cylindrical equipment of up to and including 600 mm (24”) diameter shall be insulated as for
piping. For cylindrical equipment exceeding 600 mm (24”) diameter (vessels, exchangers, tanks,
etc.), a metal support shall be fixed in place before applying the insulation which shall serve as a
support for the insulation itself and also for fastening the metal jacketing.
The insulation boards or blanket shall be applied to the surfaces to be covered using the same
methods as for the piping but shall be held in place by stainless steel straps of 12 x 0.6 mm,
spaced every 250 mm, mechanically tightened and either fixed with buckles or riveted. When the
straps are in place there shall be no bruises, cracks ore open joints in the insulation.
The maximum length of the aforesaid straps shall not exceed 6 m. Longer straps shall be formed
of several sections locked together.
Expansion / contraction joints shall be provided as required. Gaps caused by cutting the boards to
avoid the projecting parts of the equipment, e.g. supports, nozzles, instrument tapings, shall be
filled up with insulation material.
Pumps shall not be insulated.
7.3.2.
Bottom
The boards shall be suitably shaped and fastened to the bottoms by stainless steel, hooked in to
appropriate supports.
The points between boards shall be closely aligned and the wire mesh shall be sewn together
using 1.2 mm stainless steel wire.
7.3.3.
Heads
The insulation for heads shall be segmental in shape and held together with binding wire. The
segments shall be fixed at one end to support straps of stainless steel around the shell and the
other end to a floating ring of 10mm 316 stainless steel bar.
The joints between insulation sheets shall be closely aligned and the edges of the wire mesh sewn
together with
1.2 mm stainless steel wire.
20
BGC Insulation Specification
7.3.4.
Revision:
01A
Miscellaneous (Special Items, Manholes, Nozzles, etc
All valves (except relief valves), manholes, flanges, expansion joints and other items on insulated
pipelines shall be insulated. Items with removable insulation shall be insulated to the same
thickness as the adjacent vessel or pipe.
Where a special item is insulated, it shall be insulated in such a way that the insulation may be
easily removed without damaging the insulation close to the item and so as to allow any bolts to
be extracted if applicable.
In the event that frequent inspection of special items is required, insulation shall be carried out
using removable insulated metal boxes, held in place by metal straps and self-tightening devices.
The box shall be adequately sealed (including vapour barrier if required) with special attention
paid to valve stems and other protrusions. The voids around irregular shapes shall be filled with
loose insulation material.
7.4.
MACHINERY INSULATION
No insulation is required for pumps and other rotating equipment. Compressor insulation shall be
as per Compressor vendor recommendations and no further insulation is recommended as per
this specification.
Unless specified otherwise on individual equipment data sheets or in an equipment insulation
summary, insulation shall not be applied to other machinery items.
7.5.
INSTRUMENT INSULATION
Instrument signal tubing, instrument analyzer tubing and equipment instrument bridles up to
instrument connections shall be insulated if heat traced and for personnel protection if operating
0
temperature is above 70 C. Instrument tubing on steam piping shall not be insulated.
Heat traced bridles shall be insulated in accordance with the insulation requirements specified for
piping.
7.6.
VAPOUR BARRIER
If the op rating temperature of the pipe or equipment is below ambient or is likely to drop below
ambient (during blowdown etc.), a vapour barrier shall be applied over the insulation. Vapour
barrier shall be a heavy-duty multiplex foil, adhered to the insulation using a coat of mastic
sealant.
7.7.
INSULATION FINISH JACKETING
All insulation terminations on piping and equipment shall be metal finished and weather tight.
Jacketing shall be fitted carefully around vessel and piping attachments which pass through it.
Metal sealant shall be applied to the extent necessary to prevent the entrance of water around
penetrations through the jacketing. Jacketing shall be installed to shed water.
Piping
Sheet jacketing shall be erected in such a way as to cover perfectly the insulation beneath. The
terminations of cladding shall be water / vapour tight (see Figure 7.1).
21
BGC Insulation Specification
Revision:
01A
The longitudinal joints of the jacketing shall have a 50 mm minimum overlap, with the free edge
beaded for reinforcement, and shall be fixed with self-threading stainless-steel screws every 150
mm. Joints shall be positioned on the side of horizontal piping with the lap orientation to shed rain /
water.
Peripheral joints shall have a 50 mm minimum overlap with male-female type beading on the
edges. They shall not be fixed with screws, in order to give free play to the thermal expansion.
Peripheral joints on vertical piping shall be installed with the upper section overlapping the lower.
The finishing of elbows shall be executed in geometrically traced segments.
Figure 7.1 Jacketing for Piping
ITE
DESCRIPTION
1
Performed Insulation Pipe Section
2
3
Sheet Metal Cladding
Chloride Barrier (where applicable)
4
Adhesive Tape
5
Butyl or Silicone Mastic Tape
6
316 Stainless Steel Tie Wire
7
316 Stainless Steel Banding
8
Stainless Steel Slotted Pan-head Self Tapping crew C/W Reinforced Neoprene Washer
22
BGC Insulation Specification
Revision:
01A
Equipment
Shaped or curved elements shall be fixed to each other and to the support by means of selfthreading screws every 150 mm (see Figure 7.2 - Figure 7.5).
Longitudinal and peripheral joints shall be overlapped, not less than 50 mm and the overlap edges
shall be beaded.
For large flat surfaces, the metal sheet shall be shaped in "diamond point" form or otherwise as
reinforcement against flexure.
For convex, conical, or truncated conical surfaces, the jacketing shall be executed in geometrically
traced segments, the radial joints of which shall overlap for at least 50 mm and be fixed by selfthreading stainless-steel screws.
Spaces in the elements due to sundry interruptions (stub-pipes, nozzles, nameplates, etc.) shall be
protected by ribbed dummies or fixed with self-threading stainless-steel screws, or else riveted.
Particular care shall be taken with all sheet joints, dummies and head jackets, which shall be waterproofed by sealing with bituminous mastic.
Equipment requiring inspection and checks, for which a demountable insulating protection is
necessary, shall be protected using the same criteria as for valves or flanges covering boxes.
The marks and identification tags of equipment shall remain clearly visible after the insulation is
applied. The openings made in the insulation for this purpose shall be carefully sealed to avoid the
infiltration of water.
Exchanger flanges and connecting flanges between the various parts of the equipment in general,
valve bodies, angles for fixing gangways or ladders, and supports in general, shall not be insulated.
Manholes and nozzles shall not be insulated unless otherwise indicated.
Breaks in the insulation due to flanges and manholes shall be executed so as to allow the bolts to
be removed without damaging the covering.
23
BGC Insulation Specification
Revision:
01A
Figure 7.2 Jacketing for Equipment
ITEM
DESCRIPTION
1
Sealing Cap or Disc
2
“Orange Peel” Metallic Cladding
3
Vapour Barrier (Cold Insulation Only)
4
Butyl or Silicone Mastic Strip
5
Self-tapping Screw c/neoprene Washers
6
Insulation Retaining Bands
7
Staggered Insulation Blocks
8
Insulation Retaining Head Bands
9
Floating Ring
10
Head Band Ties
11
Cladding Securing Bands
12
Sheet Metal Cladding
24
BGC Insulation Specification
Revision:
01A
Figure 7.3 Jacketing for Equipment
25
BGC Insulation Specification
Revision:
01A
Figure 7.4 Jacketing for Equipment
u
Figure 7.5 Jacketing for Equipment
M
ITEM
DESCRIPTION
1
Valve Box Landing Collar
2
Insulating Retaining Clip (detail “a”)
3
SS Quick Release Toggles
4
5
Butyl or Silicone Mastic Strip
Valve Box End cover Lock Formed all Sizes
26
BGC Insulation Specification
7.8.
Revision:
01A
REQUIREMENTS FOR PERSONNEL PROTECTION INSULATION
Personnel protection shall be provided if normal temperature of a surface exceeds 70ºC and if the
surface is in an area that is accessible to personnel. Accessible area is defined as an area in which
personnel regularly perform duties, including maintenance, during plant operation. Personnel
protection shall be provided to 2100 mm (7 ft.) above grade or platforms and 900 mm (3 ft.)
horizontally from the periphery of platforms, walkways, or ladders.
Open Wire-Mesh guards (see Figure 6.1) as used for personnel protection shall be provided by
secured & bolted metal mesh guards a d shall be offset from the hazardous surface a minimum of
50 mm. Mesh shall be 316L stainless steel with mesh size such that fingers cannot pass through.
The guards shall not create a fire hazard.
Guards shall be easily removed and reinstalled on pipes and equipment that require regular
maintenance.
Figure 7.6 Mesh Guard
7.9.
ADDITIONAL REQUIREMENTS FOR ELECTRICAL TRACED INSULATION
Jacketing for insulation type ET (electrical traced) piping shall be installed with bands only.
Screws and rivets may damage the electrical tracing and are not acceptable fasteners for any
jacketing installed to finish insulation on electrically traced piping.
8.
INSTALLATION, COLD INSULATION
8.1.
PIPING INSULATION
Sectional and segmental insulation shall be applied in one or two layers, as required by
insulation type and operating temperature, to the thickness specified. Reinforced tape may be used
27
BGC Insulation Specification
Revision:
01A
in place of metal bands. Single-layer insulation shall be applied with joints staggered, all edges
completely coated with joint sealer and tightly butted. Multi-layer insulation shall be applied with
side and end joints staggered over the joint of the preceding layer. The joints of all layers shall be
sealed and tightly butted.
All pipe fittings and flanges shall be completely insulated. All valves shall be insulated up to but
not including the packing gland or nut except for control valves with extended bonnets, these shall
be insulated to the bonnet flange.
All sharp corners and edges of insulation should be rounded. Large voids other than contraction
joints or inside boxed areas shall not be filled with joint sealer but eliminated by refitting or
replacing insulation.
A vapor barrier shall be installed over the insulation. The mastic type vapor barrier shall have a first
coat of mastic with a fabric membrane embedded and a final coat of mastic.
Aluminum jacketing shall be installed over the vapor barrier as specified in Cini guidelines.
8.2.
EQUIPMENT INSULATION
The insulation shall be performed and of the correct size. All voids must be filled with pieces of the
insulating material and sealed with waterproofing mastic. All joints shall be tightly butted together,
sealed with joint sealer. The insulation shall be held in place with ¾’ filament tape or with ½’’
stainless steel bands (max 300 mm centers).
A vapor barrier shall be installed over the insulation. The mastic type vapor barrier shall have a first
coat of mastic with a fabric membrane embedded and a final coat of mastic.
Aluminum jacketing shall be installed over the vapor barrier as specified in Cini guidelines.
Openings in the jacket at nozzles, brackets and related items shall be cut as close as possible to
provide a snug fit and shall be sealed with joint sealer to prevent moisture from penetrating the
jacket.
Equipment saddles on horizontal vessels are to be insulated with 1’’ thick Aramaflex (or equal) for a
distance below the insulation that is equal to four (4) times the thickness of the vessel insulation.
Heat exchangers shall be insulated in a manner similar to horizontal vessels. Heads on
exchangers that are removable shall be insulated such to allow access to the bolts with
minimum damage to the insulation. Flanged ends shall be insulated with a flat cover that is
removable.
9.
STORAGE AND HANDLING OF INSULATION MATERIALS
Insulating materials shall be handled and stored in accordance with the MANUFACTURER’s
recommendations and such that they are maintained in factory dry condition until permanent and final
weather protection is fitted.
Insulation shall be protected, and containers shall be fully sealed to prevent contamination by water
and salts before and during application.
28
BGC Insulation Specification
Revision:
01A
Products employed shall be properly packaged and identified by MANUFACTURER, type, batch number
and date of manufacture. Packaging for insulation shall consist of wrapped or pre-shrunk polythene, or
weather-proof cartons or containers.
If removed from its original packaging (e.g. partially used cartons), insulation shall be placed in sealed
polythene bags (or other material impermeable to moisture) with identifying labels.
Materials shall be stored under cover until required for use.
Materials which become wet or contaminated with dirt or other extraneous matter shall not be used.
Material that becomes wet before or during installation shall be replaced without charge.
Insulating materials shall remain in their packaging until immediately before use, and a minimum of
handling shall be employed during application.
The interval between application of the insulation and weatherproofing should be kept as short as possible.
If immediate application of the weatherproofing is impractical, the insulation shall receive adequate
temporary weather protection. Irrespective of whether a temporary enclosure is being employed, the
insulation shall be protected against ingress of water at all times.
10.
INSPECTION
SUPPLIER shall submit material datasheets for COMPANY approval, together with applicable laboratory
test certificates. Should the material be delivered in multiple batches, a compliance certificate shall be
submitted certifying the materials are in accordance with the technical specifications of the first batch.
Installation and application of insulation shall be inspected at every stage to ensure quality of
workmanship in accordance with COMPANY’s approved inspection and test plan.
An Inspection and Test Plan (ITP) and method statement shall be developed. The extent and
frequency of inspection shall be defined in the ITP.
All inspection activities shall be performed in accordance with the following points:
10.1.
CONTROL PRIOR TO THE APPLICATION
•
Completion of hydro testing;
•
Completion of welding and NDE;
•
Completing of structural supports;
•
Completion of surface treatment according to the Coating and Painting;
•
Schedule.
10.2.
•
•
•
•
CONTROL DURING APPLICATION
Application according to the applicable standard or MANUFACTURER’s recommendation.
Aluminium / metal jackets overlapping and fixing requirements.
Proper handling of insulation material.
At the end of each daily work shift, verify the adequacy of the protection required by the principle for
installed insulation before insulation is covered with jacketing / sheeting. Check sealing between sheets.
29
BGC Insulation Specification
•
•
Revision:
01A
The Supervisor shall systematically check ambient conditions and is responsible for halting insulation
activities should the conditions be unsuitable, such as rain and temperature below dew point of the
surfaces to be insulated.
The Supervisor shall comply with the conditions (temperature, humidity, absence of rain, etc.) for applying
adhesive and sealing materials in accordance with the MANUFACTURER’s instructions.
10.3.
INSPECTION CRITICAL
Insulation / jacketing shall be judged as defective and shall be removed and replaced under any of the
following criteria / reasons:
•
If there are any cracks extending through the insulation;
•
If there are any cracks that could cause the insulation to break upon sawing or gently flexing;
•
If the ends are broken or damaged;
•
If more than 10% of the surface area of the insulation is composed of large voids;
•
If any large void has a depth greater than 10% of the insulation thickness.
10.4.
FINAL CONTROL
Final inspection shall include the following:
•
Metal jacket sealing
•
Fixing of bands
•
Completion of full scope of work to all the required standards and specifications.
10.5.
IN SERVICE INSPECTION
In service inspection shall include the following:
•
Special inspection at dead legs of piping / insulation
•
Inspection near vibrating lines which can disturb seals
•
Inspect near reciprocating compressors
•
Inspection extent and frequency to be detailed in the quality plan.
11.
WARRANTY AND PERFORMANCE GUARANTEE
Unless otherwise agreed, all work shall be guaranteed as follows:
•
All work shall perform satisfactory under the specified operating conditions and shall be fit for the intended
purpose.
•
All materials supplied shall be guaranteed free from defects.
•
All workmanship shall be guaranteed free from defects and in accordance with the best industrial
standards and practices.
•
SUPPLIER shall guarantee the mechanical and structural integrity, workmanship and the materials of
construction used.
•
Under the warranty, the Seller shall replace all work that is found to be faulty due to defective design,
workmanship, or materials during the warranty period at no cost to the principle. SUPPLIER shall, if
required by COMPANY, supply the services of an experienced technician to supervise the necessary
repairs and replacements.
12.
DOCUMENTATION
All drawings, technical documents, instruction manuals and legend plates, equipment and operating panels,
shall be in English.
Documentation requirements and submittal times are itemized in SUPPLIER’s Data Requirements List
provided in the request for tender submission
30
Revision:
01A
BGC Insulation Specification
13.
INSULATION ATTACHMENT METHODS, INSULATION FINISH REQUIREMENT AND
INSULATION THICKNESS TABLE
13.1.
Table 13-1: INSULATION ATTACHMENT METHODS AND MATERIALS (Mineral wool)
)INSULATION
Form
Material
EQUIPMENT
Type
Size (Note 1)
METHOD OF ATTACHMENT
Type (Note
2& 5)
Segments,
Block and
Lags
Mineral
Wool
Pipe and
equipment
shells
Slab
Mineral
wool
Equipment
shells
Over 1800 mm
Band "B"
Mineral
wool
Equipment
heads,
Irregular
equipment
surfaces
All
Band "B"
Mattress
Over 750 mm
Band "B"
Spacing (Note 4)
300 mm on centers for
single/ outer layers and
450 mm on centers for
all inner layers
225 mm on centers for
single/ outer layers and
450 mm on centers for
all inner layers
300mm maximum
space at knuckle
radius- minimum 1 per
block (Note-3)
NOTES TO TABLE 9.1:
1
2
Size is the nominal pipe size or vessel outside diameter.
Materials are as follows:
Band "A":
13 mm by 0.50 mm, Stainless steel 316.
Band "B":
19 mm by 0.50 mm, Stainless steel 316. Wire:
1.0 mm diameter
Stainless steel 316 wire.
3
Attachment of high temperature insulation over irregular surfaces may be with wire if the use of bands is impractical.
4
Band or wire spacing specified as "300 mm maximum all layers" or "450 mm maximum all layers" applies to 900 mm long insulation
segments. Shorter lengths, such as 600 mm long V grooved mineral wool slab requires two (2) bands or wires per section on all layers.
5
Unless noted otherwise, equipment insulated with fibrous type insulation does not require insulation springs for bands securing insulation
to the shell of equipment. For equipment insulated with rigid block insulation, 100 mm long, flat springs are required for each band.
31
BGC Insulation Specification
13.2.
Revision:
01A
Table 13-2: INSULATION FINISH REQUIREMENTS
EQUIPMENT OR PIPING
OUTSIDE
DIAMETER
INSULATION FINISH
END LAP (Note 2)
(Note 7)
Shells
Vertical
Vessels
915 mm (36’’)
or less
Flat metallic sheet
Over 915 mm
(36’’)
32 mm corrugated
metallic sheet
All
Gored flat metallic
sheet, same thickness
as shell
Gores require a -75 mm
lap at shell junction
All
Flat metallic sheet
75 mm - longitudinal and
circumferential
All
Gored flat metallic
sheet
Gores require a 75 mm
lap at shell junction
Flat metallic sheet
50 mm - longitudinal
and circumferential
Flat metallic sheet
(Note 4)
75 mm - longitudinal and
circumferential
All
Gored cover
fabricated from flat
metallic sheet - same
thickness as pipe
End laps same as above
for straight pipe - lap
individual gores 50 mm
along inside radius
End laps as above for
straight pipe, etc.
All
Gored cover
fabricated from flat
metallic sheet - same
thickness as pipe
Removable and
reusable insulation
covers
50 mm - all directions
Exposed Heads
Concealed
Heads
Shells and
Horizontal
Vessels and Channels
Heat
Heads
Exchangers
Straight Pipe,
NPS 24 or less
Tees and Piping
Branch
Over NPS 24
Connections
Bent Pipe
Piping
Elbows
Valves, Flanges
(only when
insulation is
required)
NPS 24 or less
Over NPS 24
75 mm - longitudinal and
circumferential
2 corrugations longitudinal
75 mm - circumferential
75 mm - all directions
32
Revision:
01A
BGC Insulation Specification
13.3.
Table 13-3: INSULATION FINISH REQUIREMENTS (continued)
ITEM
METHOD OF ATTACHMENT
LOCATION
OF FINISH
OUTSIDE
DIAMETER
SECUREMENT TYPE
(Note 2)
(Note 7)
(Note 1)
Less than
1200 mm
Shells
1200 mm
and larger
Band "B" (Note
8)
300 mm maximum centers
supported radially with belt loops on
4.5 m centers minimum 2 per
band (Notes 3, 4 5)
Screws (Notes 5 &
150 mm centers along gore laps
Vertical
Vessels
Exposed
Heads
All
6)
Concealed
Heads
Horizontal
Vessels and
Heat
Exchangers
Piping
Shells
All
Heads and
Channels
Straight Pipe,
Tees and
branch
connections
NPS 24 and
less
Over NPS 24
Piping
Fittings,
Valves
Band "B"
225 mm maximum centers (Note 3)
Screws (Notes 5 &
6)
150 mm centers along gore laps
Band "A"
Band "B"
Band "A",
Elbows, Bent
Pipe
Screws
All
And
Flanges
Valves,
Flanges
(Only when
Insulation is
required)
SPACING
300 mm maximum centers
(Notes 3, 4, 5)
Band "A",
Screws
For insulation dia Less than or
equal to 150 mm (6’’) : 225
mm maximum centers;
For insulation dia greater than
150 mm (6’’) : 300 mm maximum
centers;
(Note 3)
Band fasten die-formed and gored
elbow
covers
at
each
circumferential end lap over (or
under) the adjacent weather jacket.
Fasten longitudinal heel and throat
laps on die-formed covers with
screws on 100 to 125 mm centers
- minimum 1 screw for the throat
lap and 3 screws for the heel lap.
Fasten both longitudinal and
circumferential laps in the throat
area of each gored segment using a
single screw. Fasten all gored
segment circumferential laps with 1
screw per lap along the outside
radius or heel of the gored cover.
(Note 9)
300
mm
maximum
centers,
minimum 2 per cylindrical section
- screws on 100 mm maximum
centers along seams.
NOTES TO TABLE 9.2 & 9.3:
1.
Band material shall be as follows:
33
BGC Insulation Specification
Revision:
01A
Band "A" - 13 mm x 0.5 mm, Stainless steel 316 Band "B" - 19 mm x 0.5 mm,
Stainless steel 316
Belt loops shall be fabricated from the same material as the bands and shall be riveted to high points of corrugations on 450 mm
maximum centers.
2.
3.
4.
Laps shall be oriented to shed water.
5.
Longitudinal laps in jacketing on vertical vessels shall be screw fastened on 150 mm centers. Circumferential laps on all vessels shall not be
screw fastened except at the head gore/shell finish lap which requires circumferentially placed screws on staggered 150 mm nominal
centers and at the bottom of the shell jacketing which requires circumferentially placed screws on 150 mm nominal centers.
6.
Convex equipment heads that have been insulated with a flat disc shall have the lapping surfaces of the blind cover coated with
silicone sealant prior to installation of the cover. Covers on horizontal equipment shall have the lapped seam oriented to shed water.
7.
8.
Outside diameter refers to nominal pipe or equipment diameter.
All circumferential laps shall be banded.
Vertical sheathing support shall be provided on all vertical vessels and vertical piping having insulation outside diameters of 450 mm or
more with the application of 13 mm by 0.5 mm austenitic stainless steel "S-clips" installed on 450 mm maximum centers (minimum 2 clips
per sheet regardless of diameter).
Screws are not allowed for cold Insulation. Band shall be used with a minimum of one band per gored segment. However, if band not at all
possible to use, screws may be used (Subject to approval).
34
Revision:
01A
BGC Insulation Specification
13.4.
Table 13-4: INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT
HEAT CONSERVATION - Mineral wool - MODERATE CLIMATE
Operating temperature in ⁰C (°F)
PIPE DIAMETERS
Inches/DN/mm
50
(120)
100
(210)
150
(300)
200
(390)
250
(480)
300
(570)
350
(660)
400
(750)
450
(840)
500
(930)
Insulation thickness [mm (in) ]
1"/25/33.40
25
(1)
40
(1.5)
50 (2)
50
(2)
50
(2)
50
(2)
50
(2)
50
(2)
50
(2)
50
(2)
1½"/40/48.26
25
(1)
40
(1.5)
50 (2)
50
(2)
50 (2)
50
(2)
50
(2)
50
(2)
50
(2)
50
(2)
2"/50/60.33
30
(1.2)
50
(2)
50 (2)
60
(2.4)
60
(2.4)
70
(2.6)
70
(2.6)
80
(3)
80
(3)
80
(3)
3"/80/88.90
30
(1.2)
50
(2)
50 (2)
60
(2.4)
60
(2.4)
80
(3)
80
(3)
80
(3)
80
(3)
80
(3)
4"/100/114.3
40
(1.5)
50
(2)
60
(2.4)
60
(2.4)
60
(2.4)
70
(2.6)
80
(3)
80
(3)
80
(3)
80
(3)
6"/150/168.3
40
(1.5)
60
(2.4)
60
(2.4)
60
(2.4)
70
(2.6)
80
(3)
80
(3)
80
(3)
80
(3)
100
(4)
8"/200/219.1
50
(2)
80
(3)
80
(3)
90
(3.5)
90
(3.5)
100
(4)
100
(4)
100
(4)
100
(4)
100
(4)
10"/250/273.1
60
(2.4)
80
(3)
80
(3)
90
(3.5)
90
(3.5)
100
(4)
120
(4.7)
120
(4.7)
120
(4.7)
120
(4.7)
12"/300/323.9
60
(2.4)
80
(3)
80
(3)
90
(3.5)
100
(4)
120
(4.7)
120
(4.7)
120
(4.7)
120
(4.7)
140
(5.5)
14"/350/355.6
50
(2)
90
(3.5)
90
(3.5)
100
(4)
100
(4)
120
(4.7)
120
(4.7)
140
(5.5)
140
(5.5)
140
(5.5)
16"/400/406.4
60
(2.4)
90
(3.5)
90
(3.5)
100
(4)
120
(4.7)
120
(4.7)
140
(5.5)
140
(5.5)
160
(6.3)
160
(6.3)
18"/450/457.2
60
(2.4)
90
(3.5)
90
(3.5)
100
(4)
120
(4.7)
120
(4.7)
140
(5.5)
160
(6.3)
160
(6.3)
160
(6.3)
20"/500/508.0
60
(2.4)
70
(2.6)
80
(3)
100
(4)
120
(4.7)
140
(5.5)
140
(5.5)
160
(6.3)
160
(6.3)
160
(6.3)
24"/600/609.6
60
(2.4)
90
(3.5)
100
(4)
100
(4)
120
(4.7)
140
(5.5)
160
(6.3)
160
(6.3)
160
(6.3)
160
(6.3)
Flat Equipment
70
(2.6)
120
(4.7)
120
(4.7)
120
(4.7)
120
(4.7)
140
(5.5)
160
(6.3)
160
(6.3)
160
(6.3)
160
(6.3)
Insulation system:
Mineral wool with aluminized steel jacketing
Ambient temperature:
15 °C (60 °F)
Wind speed:
5 m/s (11 mph).
Service life:
25 yr
Process temperatures:
between 50 °C and 500 °C (120 °F to 930 °F)
35
Revision:
01A
BGC Insulation Specification
13.5.
Table 13-5:
INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT
PERSONNEL PROTECTION - Mineral wool
For process temperatures from 60 C to 250 C (140 °F – 480 °F) barrier protections should be applied, without insulation (3.1.3)
For process temperatures > 250C (480°F), rock wool with metal cladding should be used.
Normal operating temperature [°C (°F)]
60 to 250
> 250
350
400
450
500
600
Nominal
pipe
diameter
(DN)
Nominal
pipe
diameter
(NPS)
Distance
from sheet/
guard to
bare surface
[mm (in)]
< 25
<1
50 (2)
25 (1)
30 (1.2)
40 (1.5)
40 (1.5)
50 (2)
60 (2.4)
25
1
50 (2)
25 (1)
30 (1.2)
40 (1.5)
40 (1.5)
50 (2)
60 (2.4)
40
1½
50 (2)
25 (1)
30 (1.2)
40 (1.5)
50 (2)
60 (2.4)
70 (2.6)
50
2
50 (2)
25 (1)
40 (1.5)
40 (1.5)
50 (2)
60 (2.4)
70 (2.6)
80
3
50 (2)
30 (1.2)
40 (1.5)
40 (1.5)
50 (2)
60 (2.4)
80 (3)
100
4
50 (2)
30 (1.2)
40 (1.5)
50 (2)
50 (2)
70 (2.6)
80 (3)
150
6
50 (2)
30 (1.2)
40 (1.5)
50 (2)
60 (2.4)
70 (2.6)
80 (3)
200
8
50 (2)
30 (1.2)
40 (1.5)
50 (2)
60 (2.4)
80 (3)
80 (3)
250
10
50 (2)
30 (1.2)
40 (1.5)
50 (2)
60 (2.4)
80 (3)
100 (4)
300
12
100 (4)
30 (1.2)
40 (1.5)
50 (2)
60 (2.4)
80 (3)
100 (4)
350
14
100 (4)
30 (1.2)
40 (1.5)
50 (2)
70 (2.6)
80 (3)
100 (4)
400
16
100 (4)
30 (1.2)
40 (1.5)
50 (2)
70 (2.6)
80 (3)
100 (4)
450
18
100 (4)
30 (1.2)
40 (1.5)
50 (2)
70 (2.6)
80 (3)
100 (4)
500
20
100 (4)
40 (1.5)
40 (1.5)
50 (2)
70 (2.6)
80 (3)
100 (4)
40 (1.5)
40 (1.5)
50 (2)
70 (2.6)
80 (3)
100 (4)
Equipment
Channels/Flat Surfaces
Insulation thickness
[mm (in)]
The table is based on:
•
Ambient temperature of 25C (77°F).
•
Wind velocity of 1 m/s (2.2 mph).
•
Surface temperature protection max. 60C (140°F)
Criteria could be different for other locations and applicable values should be determined per location.
36
Revision:
01A
BGC Insulation Specification
13.6.
Table 13-6: INSULATION THICKNESSES (mm) ELECTRICAL HEAT TRACING
(ET)Mineral wool
NOMINAL
PIPE
SIZE
0.50
0.75
NORMAL/MAXIMUM OPERATING TEMPERATURE, C
38-100
101-150
151-200
201-250
30.0
30.0
30.0
40.0
30.0
30.0
40.0
40.0
1
1.5
30.0
30.0
40.0
40.0
30.0
30.0
40.0
40.0
2
30.0
30.0
40.0
40.0
2.5
30.0
30.0
40.0
40.0
3
30.0
30.0
40.0
50.0
4
30.0
30.0
40.0
50.0
5
30.0
30.0
40.0
50.0
6
30.0
30.0
40.0
50.0
8
10
30.0
30.0
40.0
50.0
30.0
30.0
40.0
50.0
12
30.0
30.0
40.0
50.0
14
30.0
30.0
40.0
50.0
16
30.0
30.0
40.0
65.0
18
30.0
30.0
40.0
65.0
20
30.0
30.0
40.0
65.0
24
30.0
30.0
40.0
65.0
30
36
30.0
30.0
40.0
65.0
30.0
30.0
50.0
65.0
42
30.0
30.0
50.0
65.0
48
54
30.0
30.0
50.0
65.0
30.0
30.0
50.0
65.0
60
30.0
30.0
50.0
80.0
72
30.0
40.0
50.0
80.0
84
96
30.0
40.0
50.0
80.0
30.0
40.0
50.0
80.0
108
30.0
40.0
50.0
80.0
120
30.0
40.0
50.0
80.0
*144
30.0
40.0
50.0
80.0
Notes:
1.
Pipe sections used for the insulation of electrically traced piping shall have a diameter equal to the pipe diameter. In the case of spiralwound tracing >2 mm, oversized pipe sections (commercial size) shall be used.
2.
For steam tracing, the next largest pipe size insulation (commercial size) shall be used to accommodate both parent pipe and
tracing pipe.
37
Revision:
01A
BGC Insulation Specification
13.7.
Table 13-7:
INSULATION THICKNESSES (mm) FOR PIPING AND EQUIPMENT
COLD INSULATION- MODERATE CLIMATE
Operating temperature in ⁰C (°F)
PIPE DIAMETERS
-5
(23)
-10
(14)
-20
(-4)
-40
(-40)
Inches/DN/mm
-60
(-76)
-80
(-110)
-100
(-150)
-120
(-185)
-140
(-220)
-160
(-255)
-180
(-290)
Insulation thickness [ mm (in) ]
1"/25/33.40
15
(0.6)
20
(0.8)
25
(1)
35
(1.4)
40
(1.5)
50
(2)
60
(2.4)
65
(2.6)
75
(3)
80
(3.2)
85
(3.4)
1½"/40/48.26
15
(0.6)
20
(0.8)
25
(1)
35
(1.4)
45
(1.8)
55
(2.2)
65
(2.6)
70
(2.8)
80
(3.2)
85
(3.4)
95
(3.7)
2"/50/60.33
15
(0.6)
20
(0.8)
25
(1)
35
(1.4)
45
(1.8)
55
(2.2)
65
(2.6)
75
(3)
85
(3.4)
90
(3.5)
100
(4)
3"/80/88.90
20
(0.8)
20
(0.8)
25
(1)
40
(1.5)
50
(2)
60
(2.4)
70
(2.8)
80
(3.2)
90
(3.5)
100
(4)
110
(4.3)
4"/100/114.3
20
(0.8)
20
(0.8)
30
(1.2)
40
(1.5)
50
(2)
65
(2.6)
75
(3)
85
(3.4)
95
(3.7)
105
(4.1
115
(4.5)
6"/150/168.3
20
(0.8)
20
(0.8)
30
(1.2)
40
(1.5)
55
(2.2)
70
(2.8)
80
(3.2)
90
(3.5)
105
(4.1
115
(4.5)
125
(5)
8"/200/219.1
20
(0.8)
20
(0.8)
30
(1.2)
45
(1.8)
55
(2.2)
70
(2.8)
85
(3.4)
95
(3.7)
110
(4.3)
120
(4.7)
130
(5.1)
10"/250/273.1
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
70
(2.8)
85
(3.4)
100
(4)
110
(4.3)
125
(5)
135
(5.3)
12"/300/323.9
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
75
(3)
90
(3.5)
100
(4)
115
(4.5)
125
(5)
140
(5.5)
14"/350/355.6
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
75
(3)
90
(3.5)
105
(4.1
115
(4.5)
130
(5.1)
140
(5.5)
16"/400/406.4
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
75
(3)
90
(3.5)
105
(4.1
120
(4.7)
130
(5.1)
145
(5.7)
18"/450/457.2
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
75
(3)
90
(3.5)
105
(4.1
120
(4.7)
135
(5.3)
145
(5.7)
20"/500/508.0
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
60
(2.4)
75
(3)
90
(3.5)
105
(4.1
120
(4.7)
135
(5.3)
150
(6)
24"/600/609.6
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
65
(2.6)
80
(3.2)
95
(3.7)
110
(4.3)
125
(5)
140
(5.5)
150
(6)
30"/750/762.0
20
(0.8)
25
(1)
30
(1.2)
45
(1.8)
65
(2.6)
80
(3.2)
95
(3.7)
110
(4.3)
125
(5)
140
(5.5)
155
(6.1)
40"/1000/1016.0
20
(0.8)
20
(0.8)
30
(1.2)
45
(1.8)
65
(2.6)
80
(3.2)
95
(3.7)
115
(4.5)
130
(5.1)
145
(5.7)
160
(6.3)
80"/2000/2032.0
15
(0.6)
20
(0.8)
30
(1.2)
45
(1.8)
65
(2.6)
80
(3.2)
100
(4)
115
(4.5)
135
(5.3)
150
(6)
165
(6.5)
Flat Equipment
15
(0.6)
20
(0.8)
30
(1.2)
50
(2)
65
(2.6)
85
(3.4)
105
(4.1
125
(5)
140
(5.5)
165
(6.5)
180
(7)
Insulation system:
PIR with GRP cladding or specified by BGC
BGC Insulation Specification
Ambient temperature:
15 °C (60 °F)
Wind speed:
5 m/s (11 mph).
Relative humidity:
80%
Maximum heat gain:
25 W/m2 (8 Btu/hr/ft2)
Revision:
01A
Note: For Electrical traced lines when operating temperature is between -5C to below 50C, Polyurethane insulation joints shall not be sealed, and no
vapor barrier shall be applied.
BGC Insulation Specification
13.8.
Table 13-8: REFERENCE TABLE FOR THE LAYERING OF COLD INSULATION
Total insulation
[ mm (in) ]
Pre-formed PIR
[ mm (in) ]
Cellular Glass
[ mm (in) ]
30 (1.2)
30 (1.2)
30 (1.2)
40(1.5)
40(1.5)
40(1.5)
50(2)
50(2)
50(2)
60(2.4)
30/30(1.2/1.2)
60(2.4)
70(2.8)
30/40(1.2/1.5)
70(2.8)
80(3.2)
40/40(1.5/1.5)
40/40(1.5/1.5)
90(3.5)
40/50(1.5/2)
40/50(1.5/2)
100(4)
50/50(2/2)
50/50(2/2)
110(4.3)
50/60(2/2.4)
50/60(2/2.4)
120(4.7)
30/40/50(1.2/1.5/2)
60/60(2.4/2.4)
130(5.1)
30/50/50(1.2/2/2)
60/70(2.4/2.8)
140(5.5)
40/50/50(1.5/2/2)
70/70(2.8/2.8)
150(6)
50/50/50(2/2/2)
70/80(2.8/3/2)
160(6.3)
50/60/50(2/2.4/2)
80/80(3.2/3.2)
170(6.7)
50/70/50(2/2.8/2)
80/90(3.2/3.5)
180(7)
50/80/50(2/3.2/2)
90/90(3.5/3.5)
190(7.5)
50/90/50(2/3.5/2)
90/100(3.5/4)
200(8)
50/100/50(2/4/2)
100/100(4/4)
210(8.3)
50/50/60/50(2/2/2.4/2)
70/70/70(2.8/2.8/2.8)
220(8.7)
50/50/70/50(2/2/2.8/2)
70/70/80(2.8/2.8/3.2)
230(9)
50/50/80/50(2/2/3.2/2)
70/80/80(2.8/3.2/3.2)
240(9.5)
50/50/90/50(2/2/3.5/2)
80/80/80(3.2/3.2/3.2)
250(10)
50/50/100/50(2/2/4/2)
80/80/90(3.2/3.2/3.5)
Revision:
01A