SIST EN ISO 10442:2004

SLOVENSKI STANDARD
SIST EN ISO 10442:2004
01-maj-2004
Petroleum, chemical and gas service industries - Packaged, integrally geared
centrifugal air compressors (ISO 10442:2002)
Petroleum, chemical and gas service industries - Packaged, integrally geared centrifugal
air compressors (ISO 10442:2002)
Erdöl-, Chemie- und Erdgasindustrie - Turbo-Luftkompressoranlagen mit integriertem
Getriebe (ISO 10442:2002)
Industries du pétrole, de la chimie et du gaz naturel - Compresseurs d'air centrifuges
assemblés a multiplicateur intégré (ISO 10442:2002)
Ta slovenski standard je istoveten z: EN ISO 10442:2002
ICS:
23.140 .RPSUHVRUMLLQSQHYPDWLþQL Compressors and pneumatic
VWURML machines
75.180.20 Predelovalna oprema Processing equipment
SIST EN ISO 10442:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10442:2004

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SIST EN ISO 10442:2004
EUROPEAN STANDARD
EN ISO 10442
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2002
ICS 23.140; 75.180.20
English version
Petroleum, chemical and gas service industries - Packaged,
integrally geared centrifugal air compressors (ISO 10442:2002)
Industries du pétrole, de la chimie et du gaz naturel -
Compresseurs d'air centrifuges assemblés à multiplicateur
intégré (ISO 10442:2002)
This European Standard was approved by CEN on 6 November 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 10442:2002 E
worldwide for CEN national Members.

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SIST EN ISO 10442:2004
EN ISO 10442:2002 (E)
Foreword
This document (EN ISO 10442:2002) has been prepared by Technical Committee ISO/TC 118
"Compressors, pneumatic tools and pneumatic machines" 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 10442:2002 has been approved by CEN as EN ISO 10442:2002 without any
modifications.
2

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SIST EN ISO 10442:2004


INTERNATIONAL ISO
STANDARD 10442
First edition
2002-12-01


Petroleum, chemical and gas service
industries — Packaged, integrally geared
centrifugal air compressors
Industries du pétrole, de la chimie et du gaz naturel — Compresseurs d'air
centrifuges assemblés à multiplicateur intégré




Reference number
ISO 10442:2002(E)
©
 ISO 2002

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SIST EN ISO 10442:2004
ISO 10442:2002(E)
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ii © ISO 2002 – All rights reserved

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SIST EN ISO 10442:2004
ISO 10442:2002(E)
Contents
Foreword . iv
Introduction. v
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 2
4 Basic design . 4
4.1 General . 4
4.2 Package. 7
4.3 Integrally geared compressor. 19
4.4 Driver . 33
4.5 Driver-to-compressor coupling and guard. 34
4.6 Intercoolers. 35
5 Accessories . 35
5.1 Aftercooler . 35
5.2 Air intake filter-silencer . 36
5.3 Discharge blowoff silencer . 36
6 Inspection, testing and preparation for shipment . 36
6.1 General . 36
6.2 Inspection . 37
6.3 Testing. 37
6.4 Preparation for shipment. 40
7 Vendor data. 41
7.1 Proposals . 41
7.2 Contract data . 42
Annex A (informative) Data sheets . 46
Annex B (informative) Material specifications for major component parts. 59
Annex C (informative) Diagrams (see ISO 10439). 62
Annex D (normative) Forces and moments . 66
Bibliography. 69


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SIST EN ISO 10442:2004
ISO 10442:2002(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 3.
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 International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10442 was prepared by Technical Committee ISO/TC 118, Compressors, pneumatic tools and pneumatic
machines, in collaboration with Technical Committee ISO/TC 67, Materials, equipment and offshore structures for
petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and systems.
Annex D forms a normative part of this International Standard. Annexes A, B and C are for information only.
iv © ISO 2002 – All rights reserved

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SIST EN ISO 10442:2004
ISO 10442:2002(E)
Introduction
This International Standard is based on the American Petroleum Institute's API Std 672, second edition, April 1988.
Some of the content of this International Standard is identical or similar to ISO 10439, which covers centrifugal
compressors for the petroleum, chemical and gas service industries.
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.

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SIST EN ISO 10442:2004

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SIST EN ISO 10442:2004
INTERNATIONAL STANDARD ISO 10442:2002(E)

Petroleum, chemical and gas service industries — Packaged,
integrally geared centrifugal air compressors
1 Scope
This International Standard specifies requirements and gives recommendations for the design, materials,
fabrication, inspection, testing and preparation for shipment of constant-speed, packaged, integrally geared
centrifugal air compressors, including their accessories, for use in the petroleum, chemical and gas service
industries. It is also applicable to gas services other than air that are non-hazardous and non-toxic. It is not
applicable to machines that develop a pressure rise of less than 35 kPa above atmospheric pressure, which are
classed as fans or blowers.
NOTE In this International Standard, where practical, US customary units have been included in brackets for information.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
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 3511-1, Process measurement control functions and instrumentation — Symbolic representation — Part 1:
Basic requirements
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 5389, Turbocompressors — Performance test code
ISO 7005-2, Metallic flanges — Part 2: Cast iron flanges
ISO 9614 (both parts), Acoustics — Determination of sound power levels of noise sources using sound intensity
ISO 10436, Petroleum and natural gas industries — General-purpose steam turbines for refinery service
ISO 10438, (all parts), Petroleum and natural gas industries — Lubrication, shaft-sealing and control-oil systems
and auxiliaries
ISO 10441, Petroleum and natural gas industries — Flexible couplings for mechanical power transmission —
Special purpose applications
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SIST EN ISO 10442:2004
ISO 10442:2002(E)
IEC 60079-10, Electrical apparatus for explosive gas atmospheres — Part 10, Classification of hazardous areas
1)
ABMA Std 7, Shaft and housing fits for metric radial ball and roller bearings (except tapered roller bearings)
conforming to basic boundary plan
ABMA Std 20, Radial bearings of ball, cylindrical roller and spherical roller types — Metric design
2)
AGMA 2000, Gear classification and inspection handbook
AGMA 6011, Specification for High Speed Helical Gear Units
API Std 670, Vibration, axial position, and bearing temperature monitoring systems
API RP 520 PT I, Sizing, selection, and installation of pressure-relieving devices in refineries, Part I, Sizing and
selection
API RP 520 PT II, Sizing, selection, and installation of pressure-relieving devices in refineries, Part II, Installation
3)
ASME PTC 10, Performance test code on compressors and exhausters
4)
ASTM A275, Standard test method for magnetic particle examination of steel forgings
5)
DIN 3990, Load calculations for gearings
6)
NEMA SM 23, Steam turbines for mechanical drive service
7)
TEMA Standards of the Tubular Exchanger Manufacturers Association, eight edition
3 Terms and definitions
For the purposes of this International Standard the following terms and definitions apply.
3.1
bull gear
low-speed rotor of the integral gear
3.2
inlet volume flow
volume flow rate determined at the conditions of pressure, temperature, compressibility and gas composition,
including moisture, at the compressor inlet flange
[ISO 10439:2002, definition 3.5]

1) American Bearing Manufacturers Association, 2025 M Street, NW. Suite 800, Washington, DC 20036, USA.
2) American Gear Manufacturers Association, 1500 King St, Suite 201, Alexandria VA 22314, USA.
3) American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017-2392, USA.
4) American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-11887, USA.
5) Deutsches Institut für Normung E.V., Beuth Verlag GmbH, Burggrafenstrasse 6, D10787, Berlin, Germany.
6) US National Electrical Manufacturers Association, 1300 North 17th Street, Suite 1847, Rosslyn, Virginia 22209, USA.
7) US Tubular Exchanger Manufacturers Association, 25 N Broadway, Tarrytown, New York, NY 10007, USA.
2 © ISO 2002 – All rights reserved

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SIST EN ISO 10442:2004
ISO 10442:2002(E)
3.3
maximum allowable temperature
maximum continuous temperature for which the manufacturer has designed the equipment (or any part to which
the term is referred) when handling the specified fluid at the specified pressure
[ISO 10439:2002, definition 3.6]
3.4
maximum allowable working pressure
maximum continuous pressure for which the manufacturer has designed the equipment (or any part to which the
term is referred) when operating at the maximum allowable temperature
[ISO 10439:2002, definition 3.7]
3.5
normal operating point
point at which usual operation is expected and optimum efficiency is desired
NOTE This will usually be the point at which the vendor certifies that performance is within the tolerances stated in this
International Standard.
[ISO 10439:2002, definition 3.11]
3.6
pinion
high-speed rotor, or rotors, of the integral gear
3.7
piping design code
recognized piping standard specified or agreed by the purchaser
EXAMPLE ASME B31.3.
3.8
pressure casing
composite of all the stationary pressure-containing parts of the unit
3.9
pressure design code
recognized pressure vessel standard specified or agreed by the purchaser
EXAMPLE ASME Boiler and Pressure Vessel Code, Section VIII.
[ISO 10439:2002, definition 3.14]
3.10
rated discharge pressure
highest pressure required to meet the specified operating conditions
3.11
rated operating point
operating point at which the rated volume flow and the rated discharge pressure are attained
3.12
rated operating speed
speed required to meet the conditions specified by the purchaser for the intended service
NOTE This speed is equal to the maximum continuous speed for constant speed compressor units.
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SIST EN ISO 10442:2004
ISO 10442:2002(E)
3.13
rated volume flow
inlet volume flow required by the specified operating conditions
3.14
standby service
service condition in which a normally idle or idling piece of equipment is capable of immediate automatic or manual
start-up and continuous operation
3.15
trip speed
speed at which the independent emergency overspeed device operates to shut down a prime mover
NOTE For constant speed motor drivers, this is the speed corresponding to the synchronous speed of the motor at the
maximum frequency of the electrical supply.
[ISO 10439:2002, definition 3.19]
4 Basic design
4.1 General
4.1.1 Purchaser decision or information
A bullet (�) at the beginning of a clause indicates that the purchaser is required to make a decision or provide
information. This information should be indicated on the data sheets (see annex A).
4.1.2 Packaged equipment
The vendor shall provide, as a minimum, the following equipment (referred to herein as a package), packaged to
meet the specified operating conditions:
a) centrifugal compressor with integral speed-increasing gear unit;
b) intercoolers, moisture separators and V-notched gate drain valves;
c) inlet throttle device (valve or variable-inlet guide vanes);
d) driver (motor or turbine as specified);
e) couplings and guards;
f) “lube”-oil system;
g) vibration monitoring system;
h) controls and instrumentation;
i) instrument and control panel;
j) common baseplate.
If requested by the purchaser, the layout of the package shall be agreed by the purchaser.
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SIST EN ISO 10442:2004
ISO 10442:2002(E)
4.1.3 Shipped loose equipment
The vendor shall provide the following accessory equipment, either packaged or included within the scope of
supply and shipped loose, to meet the specified operating conditions:
a) aftercooler with moisture separator and V-notched gate drain valve;
b) discharge check valve;
c) discharge blowoff or by-pass valve;
d) air inlet filter-silencer;
e) blowoff or by-pass silencer.
4.1.4 Other equipment
� Any other equipment required shall be specified by the purchaser and included in the vendor's proposal.
4.1.5 Standby service
If standby service is specified, the vendor shall provide all necessary controls and protective systems to allow
automatic or manual start-up.
4.1.6 Turbine-driven equipment
All turbine-driven equipment shall be designed to run without damage to the trip speed of the driver.
4.1.7 Normal operating point
� The purchaser shall specify the normal operating point on the data sheets.
4.1.8 Environmental conditions
� The purchaser shall specify whether the installation is indoors (heated or unheated) or outdoors (with or without a
roof), as well as the weather and environmental conditions in which the package must operate (including maximum
and minimum temperatures and unusual humidity or dust problems). The package and its accessories shall be
suitable for operation under these specified conditions. For the purchaser's guidance, the vendor shall list in the
proposal any special protection that the purchaser is required to supply.
4.1.9 Engineering coordination
The vendor shall assume responsibility for the engineering coordination of the package and all accessories
included in the scope of the order.
4.1.10 Package arrangement
The arrangement of the package, including piping, coolers, pumps and controls, shall provide adequate clearance
areas and safe access for operation and maintenance.
4.1.11 Oil reservoirs and housings
Oil reservoirs and compressor housings that enclose moving lubricated parts (such as bearings, shaft seals, highly
polished parts, instruments and control elements) shall be designed to minimize contamination by moisture, dust
and other foreign matter during periods of operation and idleness.
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SIST EN ISO 10442:2004
ISO 10442:2002(E)
4.1.12 Motors and electrical components
� Motors and all other electrical components and installations shall be suitable for the area classification (zone)
specified by the purchaser on the data sheets (see annex A), shall meet the requirements of IEC 60079-10 and
shall comply with applicable local codes and regulations specified by the purchaser.
4.1.13 External parts
External parts that are subject to rotary or sliding motions (such as control linkage joints and adjusting
mechanisms) shall be of corrosion-resistant materials suitable for the site environment and shall be of sufficient
hardness to resist wear.
4.1.14 Service life
The equipment (including auxiliaries) covered by this International Standard shall be designed and constructed for
a minimum service life of twenty years and at least three years of uninterrupted operation.
4.1.15 Performance criteria
The package shall perform on the test stand and on its permanent foundation within the specified acceptance
criteria. After installation, the performance of the package shall be the joint responsibility of the purchaser and the
vendor having package responsibility.
4.1.16 Sound pressure level
Control of the sound pressure level (SPL) of all equipment furnished shall be a joint effort of the purchaser and the
vendor. The equipment furnished by the vendor shall conform to the maximum allowable sound pressure level
specified by the purchaser.
4.1.17 Pressure design code
� The pressure design code shall be specified or agreed by the purchaser.
Pressure components shall comply with the pressure design code as well as the requirements of this International
Standard.
4.1.18 Heat exchangers
4.1.18.1 Cooling water systems, if required, shall be designed for the conditions specified in Table 1 unless
otherwise specified. Provision shall be made for complete venting and draining of the system.
The vendor shall notify the purchaser if the criteria for minimum temperature rise and velocity over heat exchange
surfaces result in a conflict. The criterion for velocity overheat exchange surfaces is intended to minimize the use of
cooling water. The purchaser shall approve the final selection.
4.1.18.2 The coolers shall be of a water-cooled, shell-and-tube type, or a suitable air-cooled type, as specified.
2
A removable-bundle design is required for coolers with more than 0,50 m of surface, unless otherwise specified.
Removable-bundle coolers shall be in accordance with TEMA Class C unless otherwise specified, and shall be
constructed with a removable channel cover. Tubes shall not have an outside diameter of less than 16 mm (5/8 in),
and the tube wall shall not have a thickness of less than 1,25 mm (0,05 in). Unless otherwise specified, cooler
shells, channels and covers shall be of steel, tube sheets shall be of brass, and tubes shall be of inhibited
admiralty. U-bend tubes are not permitted. Each cooler shall be sized to accommodate the total cooling load.
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SIST EN ISO 10442:2004
ISO 10442:2002(E)
Table 1 — Cooling water systems — Design requirements
Velocity over heat exchange surfaces 1,5 m/s to 2,5 m/s (5 ft/s to 8 ft/s)
Maximum allowable gauge working pressure W 500 kPa (75 psi)
Test gauge pressure W 750 kPa (110 psi)
Maximum inlet temperature 30 °C (90 °F)
Maximum temperature rise 20 K (35 °F)
2 2
Fouling factor on water side 0,35 m ·K/kW (0,002 h·ft ·°F/Btu)
Maximum pressure drop 100 kPa (15 psi)
Maximum outlet temperature 50 °C (120 °F)
Minimum temperature rise 10 K (20 °F)
Shell corrosion allowance 3,0 mm (⅛ in)

4.1.18.3 The package shall provide complete venting and draining of the cooling system. This shall include vent
and drain connections on both the air/oil and water sides.
4.1.18.4 The vendor shall include in the proposal complete details of any proposed air-cooled cooler.
4.1.19 Special tools and fixtures
4.1.19.1 If special tools and fixtures are required to disassemble, assemble or maintain the unit, they shall be
included in the quotation and furnished as part of the initial supply of the package. For multi-unit installations, the
requirements for quantities of special tools and fixtures shall be mutually agreed upon by the purchaser and the
vendor. These or similar special tools shall be used during shop assembly and post-test disassembly of the
equipment.
4.1.19.2 If special tools are provided, they shall be packaged in separate, rugged boxes and marked “special
tools for (tag/item number)”. Each tool shall be stamped or tagged to indicate its intended use.
4.1.20 Preliminary review
Many factors (such as piping loads, alignment at operating conditions,
...