oSIST prEN ISO 10437:2009

SLOVENSKI STANDARD
oSIST prEN ISO 10437:2009
01-november-2009
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Petroleum, petrochemical and natural gas industries - Steam turbines - Special-purpose
applications (ISO/DIS 10437:2009)
Erdöl-, petrochemische und Erdgasindustrie - Dampfturbinen - Spezial-Einsatzbereiche
(ISO/DIS 10437:2009)
Industries du pétrole, de la pétrochimie et du gaz naturel - Turbines à vapeur - Usage
spécial (ISO/DIS 10437:2009)
Ta slovenski standard je istoveten z: prEN ISO 10437
ICS:
27.040 Plinske in parne turbine. Gas and steam turbines.
Parni stroji Steam engines
75.180.20 Predelovalna oprema Processing equipment
oSIST prEN ISO 10437:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 10437:2009

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oSIST prEN ISO 10437:2009


EUROPEAN STANDARD
DRAFT
prEN ISO 10437
NORME EUROPÉENNE

EUROPÄISCHE NORM

September 2009
ICS 27.040; 75.180.20 Will supersede EN ISO 10437:2003
English Version
Petroleum, petrochemical and natural gas industries - Steam
turbines - Special-purpose applications (ISO/DIS 10437:2009)
Industries du pétrole, de la pétrochimie et du gaz naturel - Erdöl-, petrochemische und Erdgasindustrie -
Turbines à vapeur - Usage spécial (ISO/DIS 10437:2009) Dampfturbinen - Spezial-Einsatzbereiche (ISO/DIS
10437:2009)
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 Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 10437:2009: E
worldwide for CEN national Members.

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oSIST prEN ISO 10437:2009
prEN ISO 10437:2009 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 10437:2009
prEN ISO 10437:2009 (E)
Foreword
This document (prEN ISO 10437:2009) 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, 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 10437:2003.
Endorsement notice
The text of ISO/DIS 10437:2009 has been approved by CEN as a prEN ISO 10437:2009 without any
modification.

3

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oSIST prEN ISO 10437:2009

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oSIST prEN ISO 10437:2009
DRAFT INTERNATIONAL STANDARD ISO/DIS 10437
ISO/TC 67/SC 6 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2009-09-17 2010-02-17
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Petroleum, petrochemical and natural gas industries — Steam
turbines — Special-purpose applications
Industries du pétrole, de la pétrochimie et du gaz naturel — Turbines à vapeur — Usage spécial
[Revision of second edition (ISO 10437:2003)]
ICS 27.040; 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, 2009

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
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©
ii ISO 2009 – All rights reserved

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
Contents Page
Foreword.vi
Introduction.vii
1 Scope.1
2 Normative references .1
3 Terms and definitions .4
4 General. 10
4.1 Unit Responsibility . 10
4.2 Dimensions. 10
4.3 Unit Conversion . 10
4.4 Nomenclature. 10
4.5 Conflicting requirements . 10
5 Statutory requirements . 10
6 Basic design. 10
6.1 General. 10
6.2 Nameplates and rotation arrows. 13
7 Casings. 14
7.1 Pressure casings . 14
7.2 Casing connections. 16
7.3 Internal stationary components . 18
7.4 External forces and moments . 18
8 Rotating elements. 19
8.1 General. 19
8.2 Shafts. 19
8.3 Blading. 20
8.4 Speed-sensing element. 21
9 Rotor dynamics. 21
9.1 General. 21
9.2 Lateral analysis. 22
9.3 Stability Analysis . 30
9.4 Unbalanced rotor response verification test . 33
9.5 Additional testing. 34
9.6 Torsional analysis. 35
9.7 Vibration and balancing . 35
10 Bearings bearing housings, and seals. 40
10.1 Bearings – General . 40
10.2 Radial bearings . 40
10.3 Thrust bearings and collars. 40
10.4 Bearing housing. 41
10.5 Grounding. 42
10.6 Shaft seals. 42
11 Materials . 42
11.1 General. 42
11.2 Castings. 44
11.3 Welding. 45
12 Controls and instrumentation . 46
12.1 General. 46
© ISO 2009 – All rights reserved iii

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
12.2 Turbine governing system .46
12.3 Turbine shutdown system.49
12.4 Other alarms and shutdowns.53
12.5 Instrument and control panels.55
12.6 Local instrumentation.55
13 Electrical systems .55
14 Piping and appurtenances .56
14.1 General .56
14.2 Oil piping .56
14.3 Instrument piping .56
14.4 Steam piping .56
15 Accessories .58
15.1 Couplings and guards.58
15.2 Mounting plates .58
15.3 Relief valves.62
15.4 Lubrication and control-oil system .62
15.5 Gland vacuum systems .63
15.6 Insulation and jacketing.63
15.7 Enclosures .63
15.8 Turning gear.65
15.9 Special tools .66
16 Inspection, testing and preparation for shipment .66
16.1 General .66
16.2 Inspection.66
16.3 Testing.68
16.4 Preparation for shipment.72
17 Vendor’s information .74
17.1 General .74
17.2 Proposals .75
17.3 Contract data .77
Annex A (informative) Typical datasheets.79
Annex B (informative) Steam turbine nomenclature .101
Annex C (normative) Procedures for determining residual unbalance .103
C.1 Scope.103
C.2 Terms and definitions .103
C.3 Maximum allowable residual unbalance.103
C.4 Residual unbalance check .103
Annex D (informative) Calculation of the maximum rotor speed during an overspeed trip .109
D.1 Scope.109
D.2 Calculations in SI units.110
D.3 Calculations in US Customary units .111
Annex E (informative) Mounting Plate Arrangements.115
Annex F (informative) Gland sealing and leak-off system.119
Annex G (informative) Typical inspection of components .122
Annex H (informative) Inspector's checklist .123
Annex I (informative) Vendor drawing and data requirements (VDDR).125
I.1 Example VDDR form.125
I.2 Description.129
Annex J (informative) Typical material specifications .139
Bibliography.142

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
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 10437 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum and natural gas industries, Subcommittee SC 6, Processing equipment and systems.
This third edition cancels and replaces the second edition (ISO 10437:2003), which has been technically
revised.
© ISO 2009 – All rights reserved v

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
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 appropriate 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.
This International Standard requires the purchaser to specify certain details and features.
A bullet (z) 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 or decision should be indicated on the data
sheets; otherwise it should be stated in the quotation request (enquiry) or in the order.
In this International Standard, where practical, US Customary units have been included in brackets for
information.

vi © ISO 2009 – All rights reserved

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oSIST prEN ISO 10437:2009
DRAFT INTERNATIONAL STANDARD ISO/DIS 10437

Petroleum, petrochemical and natural gas industries — Steam
turbines — Special-purpose applications
1 Scope
This International Standard specifies the minimum requirements for steam turbines for special purpose applications for
use in the petroleum, petrochemical and natural gas industries. These requirements include basic design, materials,
fabrication, inspection testing and preparation for shipment. It also covers the related lube-oil systems, instrumentation,
control systems and auxiliary equipment. It is not applicable to general-purpose steam turbines, which are covered in
API Std 611.
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 7-1, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances
and designation.
ISO 261, ISO general-purpose metric screw threads — General plan
ISO 262, ISO general-purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 724, ISO general-purpose metric screw threads — Basic dimensions
ISO 965 (all parts), ISO general-purpose metric screw threads — Tolerances
ISO 1940-1, Mechanical vibration — Balance quality requirements of rigid rotors — Part 1: Determination of
permissible residual unbalance
ISO 3744, Acoustics — Determination of sound power levels of noise sources using sound pressure —
Engineering method in an essentially free field over a reflecting plane
ISO 6708, Pipe work components – Definition and Selection of DN
ISO 7005-1, Metallic flanges — Part 1: Steel flanges
ISO 7005-2, Metallic flanges — Part 2: Cast iron flanges
ISO 8068, Petroleum products and lubricants — Petroleum lubricating oils for turbines (categories ISO-L-TSA
and ISO-L-TGA) — Specifications
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 8821, Mechanical vibration — Balancing — Shaft and fitment key convention
© ISO 2009 – All rights reserved 1

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oSIST prEN ISO 10437:2009
ISO/DIS 10437
ISO 10438, Petroleum and natural gas industries — Lubrication, shaft sealing and control oil systems for
special-purpose applications.
ISO 10441, Petroleum and natural gas industries — Flexible couplings for mechanical power transmission —
Special purpose applications
ISO 13691, Petroleum and natural gas industries — High-speed special-purpose gear units
ISO 15649, Petroleum and natural gas industries — Piping
IEC 60045-1, Steam turbines — Part 1: Specifications
IEC 60072, Dimensions and output series for rotating electrical machines
IEC 60079, Electrical apparatus for explosive atmospheres
IEC 60953, Rules for steam turbine thermal acceptance tests
1)
EN 287, Approval testing of welders — Fusion welding
EN 288, Specification and approval of welding procedures for metallic materials
API R
...