SIST EN ISO 10437:2004

SLOVENSKI STANDARD
SIST EN ISO 10437:2004
01-maj-2004
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Petroleum, petrochemical and natural gas industries - Steam turbines - Special-purpose
applications (ISO 10437:2003)
Erdöl- und Erdgasindustrie - Dampfturbinen für spezielle Anwendungen in Raffinerien
(ISO 10437:2003)
Industries du pétrole, de la pétrochimie et du gas naturel - Turbines a vapeur - Usage
spécial (ISO 10437:2003)
Ta slovenski standard je istoveten z: EN ISO 10437:2003
ICS:
27.040 Plinske in parne turbine. Gas and steam turbines.
Parni stroji Steam engines
75.180.20 Predelovalna oprema Processing equipment
SIST EN ISO 10437:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10437:2004

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SIST EN ISO 10437:2004
EUROPEAN STANDARD
EN ISO 10437
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2003
ICS 27.040; 75.180.20
English version
Petroleum, petrochemical and natural gas industries - Steam
turbines - Special-purpose applications (ISO 10437:2003)
Industries du pétrole, de la pétrochimie et du gas naturel -
Turbines à vapeur - Usage spécial (ISO 10437:2003)
This European Standard was approved by CEN on 24 June 2003.
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,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10437:2003 E
worldwide for CEN national Members.

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SIST EN ISO 10437:2004
EN ISO 10437:2003 (E)
Foreword
This document (EN ISO 10437:2003) 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 January 2004, and conflicting national
standards shall be withdrawn at the latest by January 2004.
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, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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 10437:2003 has been approved by CEN as EN ISO 10437:2003 without any
modifications.
2

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SIST EN ISO 10437:2004


INTERNATIONAL ISO
STANDARD 10437
Second edition
2003-07-01


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




Reference number
ISO 10437:2003(E)
©
ISO 2003

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
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©  ISO 2003
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ii © ISO 2003 — All rights reserved

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
Contents Page
Foreword. vi
Introduction . vii
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 4
4 Dimensions. 8
5 Statutory requirements. 8
6 Basic design. 8
6.1 General. 8
6.2 Nameplates and rotation arrows . 11
7 Casings. 12
7.1 Pressure casings. 12
7.2 Casing connections. 14
7.3 Internal stationary components. 15
7.4 External forces and moments. 15
8 Rotating elements. 15
8.1 General. 15
8.2 Shafts. 16
8.3 Blading. 16
8.4 Speed-sensing element. 17
9 Rotor dynamics. 17
9.1 General. 17
9.2 Lateral analysis. 18
9.3 Unbalanced rotor response verification test. 23
9.4 Additional testing. 24
9.5 Torsional analysis. 25
9.6 Vibration and balancing. 26
10 Bearings, bearing housings, and seals . 27
10.1 Radial bearings. 27
10.2 Thrust bearings and collars. 28
10.3 Bearing housing. 29
10.4 Grounding. 29
10.5 Shaft seals. 29
11 Materials. 30
11.1 General. 30
11.2 Castings. 31
11.3 Welding. 32
12 Controls and instrumentation. 33
12.1 General. 33
12.2 Turbine governing system . 33
12.3 Overspeed shutdown system . 36
12.3.1 General. 36
12.3.2 Electronic overspeed detection system . 37
12.3.3 Electro-hydraulic solenoid valves. 37
12.3.4 Trip valves/combined trip and throttle valves . 37
12.4 Other alarms and shutdowns. 39
© ISO 2003 — All rights reserved iii

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
12.5 Instrument and control panels.40
12.6 Indicating instrumentation.41
12.6.1 Tachometers.41
12.6.2 Temperature gauges.41
12.6.3 Thermowells.41
12.6.4 Thermocouples and resistance temperature detectors .41
12.6.5 Pressure gauges.41
13 Electrical systems.41
14 Piping and appurtenances.41
14.1 General.41
14.2 Oil piping.42
14.3 Instrument piping.42
15 Accessories.42
15.1 Couplings and guards .42
15.2 Gear units.42
15.3 Mounting plates.43
15.3.1 General.43
15.3.2 Baseplates.44
15.3.3 Soleplates and subplates.45
15.4 Relief valves.45
15.5 Lubrication and control-oil system .45
15.6 Gland vacuum systems .46
15.7 Insulation and jacketing .46
15.8 Turning gear.47
15.9 Special tools.47
16 Inspection, testing and preparation for shipment .47
16.1 General.47
16.2 Inspection.48
16.2.1 General.48
16.2.2 Materials inspection.48
16.2.3 Mechanical inspection.49
16.3 Testing.49
16.3.1 General.49
16.3.2 Casing pressure hydro tests.50
16.3.3 Mechanical running test .51
16.3.4 Optional tests and inspections.52
16.4 Preparation for shipment.54
17 Vendor’s information.55
17.1 General.55
17.2 Proposals.56
17.2.1 General.56
17.2.2 Drawings.56
17.2.3 Technical data.56
17.2.4 Curves.57
17.3 Contract data.57
17.3.1 General.57
17.3.2 Drawings and technical data.58
17.3.3 Parts lists and recommended spares.58
17.3.4 Installation, operation, maintenance and technical manuals .58
Annex A (informative) Typical data sheets .59
Annex B (informative) Steam turbine nomenclature .80
Annex C (normative) Procedures for determining residual unbalance .82
Annex D (informative) Alarm and shutdown systems.88
Annex E (normative) Coupling guards .90
iv © ISO 2003 — All rights reserved

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
Annex F (informative) Foundation drawings . 92
Annex G (informative) Gland sealing and leak-off system. 96
Annex H (informative) Typical inspection of components . 98
Annex I (informative) Inspector's checklist. 99
Annex J (informative) Vendor drawing and data requirements (VDDR) . 101
Bibliography . 113



© ISO 2003 — All rights reserved v

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SIST EN ISO 10437:2004
ISO 10437:2003(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 10437 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 second edition cancels and replaces the first edition (ISO 10437:1993), which has been technically
revised.
vi © ISO 2003 — All rights reserved

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
Introduction
This International Standard is based on API Std 612, fourth edition, June 1995.
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 (inquiry) or in the order.
In this International Standard, where practical, US Customary units have been included in brackets for
information.

© ISO 2003 — All rights reserved vii

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SIST EN ISO 10437:2004

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SIST EN ISO 10437:2004
INTERNATIONAL STANDARD ISO 10437:2003(E)

Petroleum, petrochemical and natural gas industries — Steam
turbines — Special-purpose applications
1 Scope
This International Standard specifies requirements and gives recommendations for the design, materials,
fabrication, inspection, testing and preparation for shipment of steam turbines for special-purpose applications.
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 ISO 10436.
NOTE For the purpose of this provision, API Std 611 is equivalent to ISO 10436.
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 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 2003 — All rights reserved 1

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SIST EN ISO 10437:2004
ISO 10437:2003(E)
1)
ISO 10438 (all parts) , 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
2)
EN 287, Approval testing of welders — Fusion welding
EN 288, Specification and approval of welding procedures for metallic materials
API RP 520 PT I, Sizing, selection, and installation of pressure-relieving systems in refineries, Part I — Sizing
3)
and selection.
API RP 520 PT II, Sizing, selection, and installation of pressure-relieving systems in refineries, Part II —
Installation
API Std 526, Flanged steel pressure relief valves
API Std 613, Special-purpose gear units for petroleum, chemical and gas industry services
API Std 670, Machine protection systems
API Std 671, Special-purpose couplings for petroleum, chemical and gas industry services
API RP 686 (First edition, April 1996), Recommended Practices for machinery installation and installation
design
4)
ASME, Boiler and pressure vessel code, Section V — Nondestructive examination.
ASME, Boiler and pressure vessel code, Section VIII — Pressure vessels
ASME, Boiler and pressure vesse
...