SIST EN ISO 14692-3:2004
(Main)Petroleum and natural gas industries - Glass-reinforced plastics (GRP) piping - Part 3: System design (ISO 14692-3:2002)
Petroleum and natural gas industries - Glass-reinforced plastics (GRP) piping - Part 3: System design (ISO 14692-3:2002)
ISO 14692-3:2002 gives guidelines for the system design of GRP piping systems for use in oil and natural gas industry processing and utility service applications. The requirements and recommendations apply to layout dimensions, hydraulic design, structural design, detailing, fire endurance, spread of fire and emissions and control of electrostatic discharge.
It is intended to be read in conjunction with ISO 14692-1, which includes an explanation of the pressure terminology used in ISO 14692-2:2002.
Erdöl- und Erdgasindustrie - Glasfaserverstärkte Kunstoffrohrleitungen (GFK) - Teil 3: Systemauslegung (ISO 14692-3:2002)
Industries du pétrole et du gaz naturel - Canalisations en plastique renforcé de verre (PRV) - Partie 3: Conception des systemes (ISO 14692-3:2002)
L'ISO 14692-3:2002 donne des lignes directrices pour la conception des systèmes de canalisations en PRV. Les exigences et recommandations s'appliquent aux dimensions d'implantation, à la conception hydraulique, à la conception de la structure, aux détails, à la résistance au feu, à la propagation du feu et aux émissions et au contrôle des décharges électrostatiques.
L'ISO 14692-3:2002 est destinée à être lue de pair avec l'ISO 14692-1.
Industrija za predelavo nafte in zemeljskega plina - S steklenimi vlakni ojačeni polimerni cevovodi (GRP) - 3. del: Načrtovanje sistema (ISO 14692-3:2002)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 14692-3:2004
01-maj-2004
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD6VWHNOHQLPLYODNQLRMDþHQL
SROLPHUQLFHYRYRGL *53 GHO 1DþUWRYDQMHVLVWHPD ,62
Petroleum and natural gas industries - Glass-reinforced plastics (GRP) piping - Part 3:
System design (ISO 14692-3:2002)
Erdöl- und Erdgasindustrie - Glasfaserverstärkte Kunstoffrohrleitungen (GFK) - Teil 3:
Systemauslegung (ISO 14692-3:2002)
Industries du pétrole et du gaz naturel - Canalisations en plastique renforcé de verre
(PRV) - Partie 3: Conception des systemes (ISO 14692-3:2002)
Ta slovenski standard je istoveten z: EN ISO 14692-3:2002
ICS:
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
83.140.30 Cevi, fitingi in ventili iz Plastics pipes, fittings and
polimernih materialov valves
SIST EN ISO 14692-3:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 14692-3:2004
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SIST EN ISO 14692-3:2004
EUROPEAN STANDARD
EN ISO 14692-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2002
ICS 75.200; 83.140.30
English version
Petroleum and natural gas industries - Glass-reinforced plastics
(GRP) piping - Part 3: System design (ISO 14692-3:2002)
Industries du pétrole et du gaz naturel - Canalisations en
plastique renforcé de verre (PRV) - Partie 3: Conception
des systèmes (ISO 14692-3:2002)
This European Standard was approved by CEN on 2 December 2002.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14692-3:2002 E
worldwide for CEN national Members.
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SIST EN ISO 14692-3:2004
EN ISO 14692-3:2002 (E)
Foreword
This document (EN ISO 14692-3:2002) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 "Materials, equipment and offshore
structures for petroleum and natural gas industries", the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by June 2003, and conflicting national
standards shall be withdrawn at the latest by June 2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,
Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.
NOTE FROM CMC The foreword is susceptible to be amended on reception of the German
language version. The confirmed or amended foreword, and when appropriate, the normative
annex ZA for the references to international publications with their relevant European
publications will be circulated with the German version.
Endorsement notice
The text of ISO 14692-3:2002 has been approved by CEN as EN ISO 14692-3:2002 without any
modifications.
2
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SIST EN ISO 14692-3:2004
INTERNATIONAL ISO
STANDARD 14692-3
First edition
2002-12-15
Petroleum and natural gas industries —
Glass-reinforced plastics (GRP) piping —
Part 3:
System design
Industries du pétrole et du gaz naturel — Canalisations en plastique
renforcé de verre (PRV) —
Partie 3: Conception des systèmes
Reference number
ISO 14692-3:2002(E)
©
ISO 2002
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
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ii © ISO 2002 — All rights reserved
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
Contents Page
Introduction . vi
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Symbols and abbreviated terms. 1
5 Layout requirements. 2
5.1 General. 2
5.2 Space requirements. 2
5.3 System supports . 3
5.4 Isolation and access for cleaning . 5
5.5 Vulnerability. 5
5.6 Joint selection . 6
5.7 Fire and blast. 7
5.8 Control of electrostatic discharge. 8
5.9 Galvanic corrosion. 9
6 Hydraulic design . 9
6.1 General. 9
6.2 Flow characteristics. 9
6.3 General velocity limitations . 9
6.4 Erosion. 10
6.5 Water hammer . 10
6.6 Cyclic conditions . 11
7 Structural design. 11
7.1 General. 11
7.2 Manufacturer's pressure rating . 11
7.3 Qualified pressure. 11
7.4 Factored qualified pressure. 12
7.5 System design pressure. 13
7.6 Loading requirements . 14
7.7 Allowable displacements . 16
7.8 Qualified stress . 16
7.9 Factored stress . 16
7.10 Limits of calculated stresses due to loading . 17
7.11 Determination of failure envelope. 18
8 Stress analysis . 25
8.1 Analysis methods . 25
8.2 Analysis requirements. 25
8.3 External pressure/vacuum . 26
8.4 Thermal loading . 27
8.5 Stresses due to internal pressure . 27
8.6 Stresses due to pipe support . 28
8.7 Axial compressive load (buckling). 29
9 Fire performance. 30
9.1 General. 30
9.2 Fire endurance . 31
9.3 Fire reaction. 32
9.4 Fire-protective coatings . 32
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
10 Static electricity.33
10.1 General .33
10.2 Classification code for control of electrostatic charge accumulation.33
10.3 Mitigation options.33
10.4 Design and documentation requirements .34
10.5 Pipes that contain a fluid with an electrical conductivity more than 10 000 pS/m.36
10.6 Pipes that contain a fluid with an electrical conductivity less than 10 000 pS/m.36
10.7 Pipes exposed to weak/moderate external electrostatic-generation mechanisms.37
10.8 Pipes exposed to strong external electrostatic generation mechanisms.37
10.9 Continuity of electrical path within piping system .38
10.10 Lightning strike.38
11 Installer and operator documentation.38
Annex A (informative) Guidance for design of GRP piping system layout.40
Annex B (informative) Description and guidance on selection of jointing designs .42
Annex C (informative) Guidance on material properties and stress/strain analysis .47
Annex D (normative) Guidance on flexibility analysis.49
Annex E (normative) Calculation of support stresses for large-diameter liquid-filled pipe .59
Annex F (informative) Guidance on quantifying fire performance properties.63
Annex G (informative) Static electricity.68
Annex H (informative) Inspection strategy.76
Bibliography.79
iv © ISO 2002 — All rights reserved
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 14692-3 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and
systems.
ISO 14692 consists of the following parts, under the general title Petroleum and natural gas industries —
Glass-reinforced plastics (GRP) piping:
Part 1: Vocabulary, symbols, applications and materials
Part 2: Qualification and manufacture
Part 3: System design
Part 4: Fabrication, installation and operation
© ISO 2002 — All rights reserved v
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
Introduction
The objective of this part of ISO 14692 is to ensure that piping systems, when designed using the components
qualified in ISO 14692-2, will meet the specified performance requirements. These piping systems are
designed for use in oil and natural gas industry processing and utility service applications. The main users of
the document will be the principal, design contractors, suppliers contracted to do the design, certifying
authorities and government agencies.
An explanation of the pressure terminology used in this part of ISO 14692 is given in ISO 14692-1.
vi © ISO 2002 — All rights reserved
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SIST EN ISO 14692-3:2004
INTERNATIONAL STANDARD ISO 14692-3:2002(E)
Petroleum and natural gas industries — Glass-reinforced
plastics (GRP) piping —
Part 3:
System design
1 Scope
This part of ISO 14692 gives guidelines for the design of GRP piping systems. The requirements and
recommendations apply to layout dimensions, hydraulic design, structural design, detailing, fire endurance,
spread of fire and emissions and control of electrostatic discharge.
This part of ISO 14692 is intended to be read in conjunction with ISO 14692-1.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 14692-1:2002, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1:
Vocabulary, symbols, applications and materials
ISO 14692-2:2002, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 2:
Qualification and manufacture
ISO 14692-4:2002, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 4:
Fabrication, installation and operation
BS 7159:1989 Code of practice for design and construction of glass-reinforced plastics (GRP) piping systems
for individual plants or sites
ASTM E1118, Standard practice for acoustic emission examination of reinforced thermosetting resin pipe
(RTRP)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14692-1 apply.
4 Symbols and abbreviated terms
For the purposes of this part of ISO 14692, the symbols and abbreviated terms given in ISO 14692-1 apply.
© ISO 2002 — All rights reserved 1
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
5 Layout requirements
5.1 General
GRP products are proprietary, and the choice of component sizes, fittings and material types may be limited
depending on the supplier. Potential vendors should be identified early in design to determine possible
limitations of component availability. The level of engineering support that can be provided by the supplier
should also be a key consideration during vendor selection.
Where possible, piping systems should maximize the use of prefabricated spoolpieces to minimize the amount
of site work. Overall spool dimensions should be sized taking the following into consideration:
limitations of site transport and handling equipment;
installation and erection limitations;
limitations caused by the necessity to allow a fitting tolerance for installation (“cut to fit” requirements).
The designer shall evaluate system layout requirements in relation to the properties of proprietary pipe
systems available from manufacturers, including but not limited to:
a) axial thermal expansion requirements;
b) ultraviolet radiation and weathering resistance requirements;
c) component dimensions;
d) jointing system requirements;
e) support requirements;
f) provision for isolation for maintenance purposes;
g) connections between modules and decks;
h) flexing during lifting of modules;
i) ease of possible future repair and tie-ins;
j) vulnerability to risk of damage during installation and service;
k) fire performance;
l) control of electrostatic charge.
The hydrotest provides the most reliable means of assessing component quality and system integrity.
Whenever possible, the system should be designed to enable pressure testing to be performed on limited
parts of the system as soon as installation of those parts is complete. This is to avoid a final pressure test late
in the construction work of a large GRP pipe system, when problems discovered at a late stage would have a
negative effect on the overall project schedule.
Further guidance about GRP piping system layout is given in Annex A.
5.2 Space requirements
The designer shall take account of the larger space envelope of some GRP components compared to steel.
Guidance on fitting sizes is given in Clause 7 of ISO 14692-2:2002. GRP fittings generally have longer lay
lengths and are proportionally more bulky than the equivalent metal component and may be difficult to
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
accommodate within confined spaces. If appropriate, the problem can be reduced by fabricating the pipework
as an integral spoolpiece in the factory rather than assembling it from the individual pipe fittings.
If space is limited, consideration should be given to designing the system to optimize the attributes of both
GRP and metal components.
5.3 System supports
5.3.1 General
GRP piping systems can be supported using the same principles as those for metallic piping systems.
However, due to the proprietary nature of piping systems, standard-size supports will not necessarily match
the pipe outside diameters. The use of saddles and elastomeric pads may allow the use of standard-size
supports.
The following requirements and recommendations apply to the use of system supports.
a) Supports shall be spaced to avoid sag (excessive displacement over time) and/or excessive vibration for
the design life of the piping system.
b) In all cases, support design should be in accordance with the manufacturer’s guidelines.
c) Where there are long runs, it is possible to use the low modulus of the material to accommodate axial
expansion and eliminate the need for expansion joints, provided the system is well anchored and guided.
d) Valves or other heavy attached equipment shall be independently supported.
NOTE Valves are often equipped with heavy control mechanisms located far from the pipe centreline and can cause
large bending and torsional loads.
e) GRP pipe shall not be used to support other piping, unless agreed with the principal.
f) GRP piping should be adequately supported to ensure that the attachment of hoses at locations such as
utility or loading stations does not result in the pipe being pulled in a manner that could overstress the
material.
g) Consideration shall be given to the possible design requirements of the support to provide electrical
earthing in accordance with the requirements of 5.8 and clause 10.
Pipe supports can be categorized into those that permit movement and those that anchor the pipe.
5.3.2 Pipe-support contact surface
5.3.2.1 Guidelines
The following guidelines to GRP piping support should be followed.
a) Supports in all cases should have sufficient width to support the piping without causing damage and
should be lined with an elastomer or other suitable soft material. The minimum saddle width, in
millimetres, should be 30D , where D is the mean diameter of the pipe, in millimetres.
b) Clamping forces, where applied, should be such that crushing of the pipe does not occur. Local crushing
can result from a poor fit and all-round crushing can result from over-tightening.
c) Supports should be preferably located on plain-pipe sections rather than at fittings or joints.
d) Consideration shall be given to the support conditions of fire-protected GRP piping. Supports placed on
the outside of fire protection could result in loads irregularly transmitted through the coating, which could
result in shear/crushing damage and consequent loss of support integrity.
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
5.3.2.2 Supports permitting pipe movement
Pipe resting in fixed supports that permit pipe movement shall have abrasion protection in the form of saddles,
elastomeric materials or sheet metal.
5.3.2.3 Supports anchoring pipe
The anchor support shall be capable of transferring the required axial loads to the pipe without causing
overstress of the GRP pipe material. Anchor clamps are recommended to be placed between two double 180°
saddles, adhesive-bonded to the outer surface of the pipe. The manufacturer’s standard saddles are
recommended and shall be bonded using standard procedures.
5.3.3 Support and guide spacing
The spanning capability of GRP piping spans is generally less than that for steel pipe, due to the lower
modulus of the material. Supports shall be spaced to avoid sag (excessive displacement over time) and/or
excessive vibration for the design life of the piping system.
GRP pipes, when filled with water, should be capable of spanning at least the distances specified in Table 1
while meeting the deflection criterion of 0,5 % of span or 12,5 mm centre, whichever is smaller. Spans are
assumed to be simply supported. In some cases, bending stresses or support contact stresses may become a
limiting factor (see 8.6), and the support spacing may have to be reduced.
Table 1 — Guidance to span lengths (simply supported)
Pipe nominal diameter Span
mm m
25 2,0
40 2,4
50 2,6
80 2,9
100 3,1
150 3,5
200 3,7
250 4,0
300 4,2
350 4,8
400 4,8
450 4,8
500 5,5
600 W 6,0
Larger spans are possible, and the designer should verify that stresses are within allowable limits according
to 8.6. The designer shall take into consideration the effect of buckling (8.7). The effect of temperature on the
axial modulus of the GRP material shall also be considered.
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SIST EN ISO 14692-3:2004
ISO 14692-3:2002(E)
5.4 Isolation and access for cleaning
The designer should make provision for isolation and easy access for maintenance purposes, for example for
removal of scale and blockages in drains. The joint to be used for isolation or access should be shown at the
design stage and should be located in a position where the flanges can in practice be jacked apart, e.g. it
should not be in a short run of pipe between two anchors.
5.5 Vulnerability
5.5.1 Point loads
Point loads should be minimized and the GRP piping locally reinforced where necessary.
5.5.2 Abuse
The designer should give consideration to the risk of abuse to GRP piping during installation and service and
the need for permanent impact shielding.
Sources of possible abuse include:
a) any area where the piping can be stepped on or used for personnel support;
b) impact from dropped objects;
c) any area where piping can be damaged by adjacent crane activity, e.g. booms, loads, cables, ropes
...
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