SIST EN ISO 13705:2014

Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery service (ISO 13705:2012)

This International Standard specifies requirements and gives recommendations for the design, materials, fabrication, inspection, testing, preparation for shipment, and erection of fired heaters, air heaters (APHs), fans and burners for general refinery service. This International Standard is not intended to apply to the design of steam reformers or pyrolysis furnaces.

Erdöl-, petrochemische und Erdgasindustrie - Befeuerte Erhitzer für den allgemeinen Einsatz in Raffinerien (ISO 13705:2012)

Industries du pétrole, de la pétrochimie et du gaz naturel - Réchauffeurs à brûleurs pour usage général dans les raffineries (ISO 13705:2012)

L'ISO 13705:2012 spécifie les exigences et donne des recommandations pour la conception, les matériaux, la fabrication, l'inspection, les essais, la préparation pour l'expédition et le montage des réchauffeurs, des préchauffeurs d'air (APH), des ventilateurs et des brûleurs à usage général dans les raffineries.
L'ISO 13705:2012 n'est pas destinée à s'appliquer à la conception des reformeurs à vapeur ou des fours à pyrolyse.

Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina - Grelniki za splošno uporabo v rafinerijah (ISO 13705:2012)

General Information

• Status: Published
• Public Enquiry End Date: 24-Jun-2011
• Publication Date: 10-Feb-2014
• ICS: 75.180.20 - Processing equipment
• ICS: 97.100.01 - Heating appliances in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Jan-2014
• Due Date: 17-Mar-2014
• Completion Date: 11-Feb-2014
• Ref Project: EN ISO 13705:2012 - Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery service (ISO 13705:2012)

Relations

• Replaces: SIST EN ISO 13705:2007 - Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery service (ISO 13705:2006)
• Effective Date: 01-Mar-2014

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 13705:2014
01-marec-2014
1DGRPHãþD
SIST EN ISO 13705:2007
3HWURNHPLþQDLQGXVWULMDWHULQGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD
*UHOQLNL]DVSORãQRXSRUDERYUDILQHULMDK,62
Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery
service (ISO 13705:2012)
Erdöl-, petrochemische und Erdgasindustrie - Befeuerte Erhitzer für den allgemeinen
Einsatz in Raffinerien (ISO 13705:2012)
Industries du pétrole, de la pétrochimie et du gaz naturel - Réchauffeurs à brûleurs pour
usage général dans les raffineries (ISO 13705:2012)
Ta slovenski standard je istoveten z: EN ISO 13705:2012
ICS:
75.180.20 Predelovalna oprema Processing equipment
97.100.01 Grelniki na splošno Heating appliances in
general
SIST EN ISO 13705:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13705:2014

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SIST EN ISO 13705:2014


EUROPEAN STANDARD
EN ISO 13705

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2012
ICS 75.180.20 Supersedes EN ISO 13705:2006
English Version
Petroleum, petrochemical and natural gas industries - Fired
heaters for general refinery service (ISO 13705:2012)
Industries du pétrole, de la pétrochimie et du gaz naturel - Erdöl-, petrochemische und Erdgasindustrie - Befeuerte
Réchauffeurs à brûleurs pour usage général dans les Erhitzer für den allgemeinen Einsatz in Raffinerien (ISO
raffineries (ISO 13705:2012) 13705:2012)
This European Standard was approved by CEN on 14 December 2012.

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 CEN-CENELEC 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 CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13705:2012: E
worldwide for CEN national Members.

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SIST EN ISO 13705:2014
EN ISO 13705:2012 (E)
Contents Page
Foreword . 3

2

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SIST EN ISO 13705:2014
EN ISO 13705:2012 (E)
Foreword
This document (EN ISO 13705:2012) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration
with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum,
petrochemical 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 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 13705:2006.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13705:2012 has been approved by CEN as a EN ISO 13705:2012 without any modification.

3

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SIST EN ISO 13705:2014

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SIST EN ISO 13705:2014

INTERNATIONAL ISO
STANDARD 13705
Third edition
2012-12-15

Petroleum, petrochemical and natural gas
industries — Fired heaters for general
refinery service
Industries du pétrole, de la pétrochimie et du gaz naturel —
Réchauffeurs à brûleurs pour usage général dans les raffineries




Reference number
ISO 13705:2012(E)
©
ISO 2012

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SIST EN ISO 13705:2014
ISO 13705:2012(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2012 – All rights reserved

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SIST EN ISO 13705:2014
ISO 13705:2012(E)
Contents Page
Foreword .v
Introduction.vi
1 Scope.1
2 Normative references.1
3 Terms, definitions, abbreviated terms and symbols .4
3.1 Terms and definitions .4
3.2 Abbreviated terms and symbols.11
4 General .12
4.1 Pressure design code .12
4.2 Regulations .12
4.3 Heater nomenclature.12
5 Proposals .16
5.1 Purchaser's responsibilities.16
5.2 Vendor's responsibilities.16
5.3 Documentation .16
5.4 Final reports.18
6 Design considerations.18
6.1 Process design .18
6.2 Combustion design .19
6.3 Mechanical design.19
7 Tubes .20
7.1 General .20
7.2 Extended surface.21
7.3 Materials .22
8 Headers.22
8.1 General .22
8.2 Plug headers .23
8.3 Return bends .24
8.4 Materials .24
9 Piping, terminals and manifolds .25
9.1 General .25
9.2 Allowable movement and loads.26
9.3 Materials .28
10 Tube suppports .28
10.1 General .28
10.2 Loads and allowable stress.29
10.3 Materials .30
11 Refractories and insulation .31
11.1 General .31
11.2 Brick and tile construction .32
11.3 Castable construction.33
11.4 Ceramic-fibre construction.33
11.5 Multi-component lining construction .35
11.6 Materials .35
12 Structures and appurtenances .36
12.1 General .36
© ISO 2012 – All rights reserved iii

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SIST EN ISO 13705:2014
ISO 13705:2012(E)
12.2 Structures .36
12.3 Header boxes, doors and ports.37
12.4 Ladders, platforms and stairways.37
12.5 Materials .38
13 Stacks, ducts and breeching.39
13.1 General.39
13.2 Design considerations .39
13.3 Design methods.41
13.4 Static design.41
13.5 Wind-induced vibration design .42
13.6 Materials .43
14 Burners and auxiliary equipment.43
14.1 Burners .43
14.2 Sootblowers .48
14.3 Fans and drivers .48
14.4 Dampers and damper controls for stacks and ducts.48
15 Instrument and auxiliary connections.49
15.1 Flue gas and air.49
15.2 Process fluid temperature .50
15.3 Auxiliary connections .50
15.4 Tube-skin thermocouples .51
15.5 Access to connections.51
16 Shop fabrication and field erection.51
16.1 General.51
16.2 Structural-steel fabrication.52
16.3 Coil fabrication.53
16.4 Painting and galvanizing.54
16.5 Refractories and insulation .54
16.6 Preparation for shipment .55
16.7 Field erection.56
17 Inspection, examination and testing.56
17.1 General.56
17.2 Weld examination .57
17.3 Castings examination.57
17.4 Examination of other components.58
17.5 Testing .59
Annex A (informative) Equipment data sheets.61
Annex B (informative) Purchaser's checklist .90
Annex C (informative) Proposed shop-assembly conditions.94
Annex D (normative) Stress curves for use in the design of tube-support elements .96
Annex E (normative) Centrifugal fans for fired-heater systems.111
Annex F (normative) Air preheat systems for fired process heaters .128
Annex G (informative) Measurement of efficiency of fired process heaters.186
Annex H (informative) Stack design.254
Annex I (informative) Measurement of noise from fired-process heaters.264
Bibliography .300

iv © ISO 2012 – All rights reserved

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SIST EN ISO 13705:2014
ISO 13705:2012(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 13705 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.
This third edition cancels and replaces the second edition (ISO 13705:2006), which has been technically
revised.
© ISO 2012 – All rights reserved v

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SIST EN ISO 13705:2014
ISO 13705:2012(E)
Introduction
Users of this International Standard should be aware that further or differing requirements may be needed for
individual applications. This International Standard is not intended to inhibit a vendor from offering, or the
purchaser from accepting, alternative equipment or engineering solutions for the individual application. This
may be particularly applicable where there is innovative or developing technology. Where an alternative is
offered, the vendor should identify any variations from this International Standard and provide details.
In International Standards, the SI system of units is used. Where practical in this International Standard, US
Customary (USC) units are included in brackets for information.
A bullet (●) at the beginning of a clause or subclause indicates that either a decision is required or further
information is to be provided by the purchaser. This information should be indicated on data sheets (see
examples in Annex A) or stated in the enquiry or purchase order. Decisions should be indicated on a checklist
(see example in Annex B).

vi © ISO 2012 – All rights reserved

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SIST EN ISO 13705:2014
INTERNATIONAL STANDARD ISO 13705:2012(E)

Petroleum, petrochemical and natural gas industries — Fired
heaters for general refinery service
1 Scope
This International Standard specifies requirements and gives recommendations for the design, materials,
fabrication, inspection, testing, preparation for shipment, and erection of fired heaters, air heaters (APHs),
fans and burners for general refinery service.
This International Standard is not intended to apply to the design of steam reformers or pyrolysis furnaces.
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 1461, Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
ISO 1940-1:2003, Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state —
Part 1: Specification and verification of balance tolerances
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substrates after overall removal of previous coatings
ISO 10684, Fasteners — Hot dip galvanized coatings
ISO 13704, Petroleum, petrochemical and natural gas industries — Calculation of heater-tube thickness in
petroleum refineries
ISO 15649, Petroleum and natural gas industries — Piping
IEC 60079 (all parts), Electrical apparatus for explosive gas atmospheres
1
EN 10025-2:2004 , Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-
alloy structural steels
2
ABMA Standard 9 , Load Ratings and Fatigue Life for Ball Bearings
3
AMCA 210 , Laboratory Methods of Testing Fans for Aerodynamic Performance Rating
AMCA 801:2001, Industrial Process/Power Generation Fans — Specifications and Guidelines

1 European Committee for Standardization (CEN), Rue de Stassart 36, B-1050 Brussels, Belgium.
2 American Bearing Manufacturers Association, 2025 M. Street, NW, Suite 800, Washington, DC 20036, USA.
3 Air Movement and Control Association, 30 West University Drive, Arlington Heights, IL 60004, USA.
© ISO 2012 – All rights reserved 1

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SIST EN ISO 13705:2014
ISO 13705:2012(E)
4
ASME B 17.1 , Keys and Keyseats
ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels
5
ASTM A 36 , Standard Specification for Carbon Structural Steel
ASTM A 53, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A 105, Standard Specification for Carbon Steel Forgings for Piping Applications
ASTM A 106, Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A 123, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM A 143, Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural
Steel Products and Procedure for Detecting Embrittlement
ASTM A 153, Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
ASTM A 181, Standard Specification for Carbon Steel Forgings, for General-Purpose Piping
ASTM A 182, Standard Specification for Forged or Rolled Alloy and Stainless-Steel Pipe Flanges, Forged
Fittings, and Valves and Parts for High-Temperature Service
ASTM A 192, Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
ASTM A 193, Standard Specification for Alloy-Steel and Stainless Steel Bolting for High-Temperature or High-
Pressure Service and Other Special Purpose Applications
ASTM A 194, Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High-Pressure or High-
Temperature Service, or Both
ASTM A 209, Standard Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes
ASTM A 210, Standard Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes
ASTM A 213, Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and
Heat-Exchanger Tubes
ASTM A 216, Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-
Temperature Service
ASTM A 217, Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-
Containing Parts, Suitable for High-Temperature Service
ASTM A 234, Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate
and High Temperature Service
ASTM A 240, Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and
Strip for Pressure Vessels and for General Applications
ASTM A 242, Standard Specification for High-Strength Low-Alloy Structural Steel
ASTM A 283, Standard Specification for Low and Intermediate Tensile Strength Carbon Steel Plates
ASTM A 297, Standard Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat
Resistant, for General Application
ASTM A 307, Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

4 American Society of Mechanical Engineers, 3 Park Avenue, New York, NY 10017, USA.
5 American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA.
2 © ISO 2012 – All rights reserved

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SIST EN ISO 13705:2014
ISO 13705:2012(E)
ASTM A 312, Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless
Steel Pipes
ASTM A 320, Standard Specification for Alloy Steel and Stainless Steel Bolting Materials for Low-
Temperature Service
ASTM A 325, Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile
Strength
ASTM A 335, Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
ASTM A 351, Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
ASTM A 376, Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Central-Station
Service
ASTM A 384, Standard Practice for Safeguarding Against Warpage and Distortion During Hot-Dip Galvanizing
of S
...

SLOVENSKI STANDARD
oSIST prEN ISO 13705:2011
01-junij-2011
3HWURNHPLþQDLQGXVWULMDWHULQGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD
*UHOQLNL]DVSORãQRXSRUDERYUDILQHULMDK,62',6
Petroleum, petrochemical and natural gas industries - Fired heaters for general refinery
service (ISO/DIS 13705:2011)
Erdöl-, petrochemische und Erdgasindustrie - Befeuerte Erhitzer für den allgemeinen
Einsatz in Raffinerien (ISO/DIS 13705:2011)
Industries du pétrole, de la pétrochimie et du gaz naturel - Réchauffeurs à brûleurs pour
usage général dans les raffineries (ISO/DIS 13705:2011)
Ta slovenski standard je istoveten z: prEN ISO 13705
ICS:
75.180.20 Predelovalna oprema Processing equipment
oSIST prEN ISO 13705:2011 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 13705:2011

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oSIST prEN ISO 13705:2011


EUROPEAN STANDARD
DRAFT
prEN ISO 13705
NORME EUROPÉENNE

EUROPÄISCHE NORM

April 2011
ICS 75.180.20 Will supersede EN ISO 13705:2006
English Version
Petroleum, petrochemical and natural gas industries - Fired
heaters for general refinery service (ISO/DIS 13705:2011)
Industries du pétrole, de la pétrochimie et du gaz naturel - Erdöl-, petrochemische und Erdgasindustrie - Befeuerte
Réchauffeurs à brûleurs pour usage général dans les Erhitzer für den allgemeinen Einsatz in Raffinerien
raffineries (ISO/DIS 13705:2011) (ISO/DIS 13705:2011)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 12.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 13705:2011: E
worldwide for CEN national Members.

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oSIST prEN ISO 13705:2011
prEN ISO 13705:2011 (E)
Contents Page
Foreword .3

2

---------------------- Page: 4 ----------------------
oSIST prEN ISO 13705:2011
prEN ISO 13705:2011 (E)
Foreword
This document (prEN ISO 13705:2011) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration
with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum,
petrochemical and natural gas industries” the secretariat of which is held by AFNOR.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 13705:2006.
Endorsement notice
The text of ISO/DIS 13705:2011 has been approved by CEN as a prEN ISO 13705:2011 without any
modification.

3

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oSIST prEN ISO 13705:2011

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oSIST prEN ISO 13705:2011

DRAFT INTERNATIONAL STANDARD ISO/DIS 13705
ISO/TC67/SC 6 Secretariat: AFNOR
Voting begins on Voting terminates on

2011-04-21 2011-09-21
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  •  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  •  ORGANISATION INTERNATIONALE DE NORMALISATION


Petroleum, petrochemical and natural gas industries — Fired
heaters for general refinery service
Industries du pétrole, de la pétrochimie et du gaz naturel — Réchauffeurs à brûleurs pour usage général dans
les raffineries —
[Revision of Second edition (ISO 13705:2006)]
ICS 75.180.20


ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est
distribué en version anglaise seulement.

To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.



THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©  International Organization for Standardization, 2011

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oSIST prEN ISO 13705:2011
ISO/DIS 13705

Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.

ii © ISO 2011 – All rights reserved

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oSIST prEN ISO 13705:2011

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oSIST prEN ISO 13705:2011
ISO/DIS 13705
Contents Page
Foreword.ix
Introduction.x
1 Scope.1
2 Normative references .1
3 Terms, definitions, and abbreviations.4
3.1 Terms and definitions .4
3.2 Abbreviations. 11
4 General. 13
4.1 Pressure design code . 13
4.2 Regulations . 13
4.3 Heater nomenclature . 13
5 Proposals. 16
5.1 Purchaser's responsibilities. 16
5.2 Vendor's responsibilities . 16
5.3 Documentation. 16
5.4 Final reports . 18
6 Design considerations . 18
6.1 Process design . 18
6.2 Combustion design . 19
6.3 Mechanical design. 19
7 Tubes. 20
7.1 General. 20
7.2 Extended surface. 21
7.3 Materials . 22
8 Headers. 22
8.1 General. 22
8.2 Plug headers . 23
8.3 Return bends. 24
8.4 Materials . 24
9 Piping, terminals and manifolds . 25
9.1 General. 25
9.2 Materials . 28
10 Tube suppports. 28
10.1 General. 28
10.2 Loads and allowable stress. 29
10.3 Materials. 30
11 Refractories and insulation . 30
11.1 General. 30
11.2 Brick and tile construction . 32
11.3 Castable construction . 32
11.4 Ceramic-fibre construction. 33
11.5 Multi-component lining construction . 34
11.6 Materials. 35
12 Structures and appurtenances. 35
12.1 General. 35
12.2 Structures. 36
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oSIST prEN ISO 13705:2011
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12.3 Header boxes, doors and ports .36
12.4 Ladders, platforms and stairways .40
12.5 Materials.41
13 Stacks, ducts and breeching.42
13.1 General.42
13.2 Design considerations.42
13.3 Design methods.44
13.4 Static design.44
13.5 Wind-induced vibration design.45
13.6 Materials.46
14 Burners and auxiliary equipment .46
14.1 Burners.46
14.2 Sootblowers.51
14.3 Fans and drivers.51
14.4 Dampers and damper controls for stacks and ducts .51
15 Instrument and auxiliary connections.52
15.1 Flue gas and air .52
15.2 Process fluid temperature .53
15.3 Auxiliary connections .53
15.4 Tube-skin thermocouples.54
15.5 Access to connections .54
16 Shop fabrication and field erection .54
16.1 General.54
16.2 Structural-steel fabrication.55
16.3 Coil fabrication .56
16.4 Painting and galvanizing .57
16.5 Refractories and insulation .57
16.6 Preparation for shipment.58
16.7 Field erection .59
17 Inspection, examination and testing .59
17.1 General.59
17.2 Weld examination.59
17.3 Castings examination .60
17.4 Examination of other components .61
17.5 Testing.62
17.5.1 Pressure testing .62
17.5.2 Refractory testing.62
17.5.3 Studded tube testing.62
17.5.4 Positive materials identification .62
Annex A (informative) Equipment data sheets .64
Annex B (informative) Purchaser's checklist.93
Annex C (informative) Proposed shop-assembly conditions.97
Annex D (normative) Stress curves for use in the design of tube-support elements .100
D.1 General.100
D.2 Casting factor .100
D.3 Minimum cross-sections .100
D.4 Maximum design temperatures .100
D.5 Corrosion resistance.100
D.6 Proprietary alloys.100
D.7 Stress curves .101
D.8 Data sources.101
Annex E (normative) Centrifugal fans for fired-heater systems .116
E.1 General.116
E.2 Design.117
E.2.1 General .117
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E.2.2 Fan housing. 120
E.2.3 Fan housing connections . 121
E.2.4 External forces and moments . 121
E.2.5 Rotating elements. 121
E.2.6 Shaft sealing of fans. 122
E.2.7 Critical speeds/resonance . 122
E.2.8 Vibration and balancing . 122
E.2.9 Bearings and bearing housings. 123
E.2.10 Lubrication . 124
E.2.11 Materials . 124
E.2.12 Nameplates and rotation arrows. 125
E.3 Accessories. 126
E.3.1 General. 126
E.3.2 Drivers. 126
E.3.3 Couplings and guards. 127
E.3.4 Controls and instrumentation . 127
E.3.5 Piping and appurtenances. 128
E.3.6 Coatings, insulations and jacketing . 128
E.4 Examination, testing and preparation for shipment . 129
E.4.1 Examination. 129
E.4.2 Testing . 130
E.4.3 Preparation for shipment . 131
E.5 Vendor’s data. 131
E.5.1 Data required with proposals . 131
E.5.2 Data required after contract. 131
Annex F (normative) Air preheat systems for fired-process heaters . 133
F.1 Scope. 133
F.2 General factors in selecting an air preheat system . 133
F.2.1 Factors affecting system applications . 133
F.2.2 Types of APH systems . 134
F.2.3 Descriptions of the most common APH exchangers. 138
F.3 Design considerations . 139
F.3.1 Process design . 139
F.3.2 Combustion design . 140
F.3.3 Draught generation for alternative operations . 141
F.3.4 Refractory design and setting losses. 142
F.3.5 FG/CA Exchanger preheater cold-end temperature control . 142
F.3.6 Exchanger mechanical design . 149
F.4 Selection guidelines . 150
F.4.1 General. 150
F.4.2 Plot area. 150
F.4.3 Ma
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