EN ISO 6368:2021
(Main)Petroleum, petrochemical and natural gas industries - Dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders (ISO 6368:2021)
Petroleum, petrochemical and natural gas industries - Dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders (ISO 6368:2021)
This document is applicable to dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders as described in ISO 10439 (all parts), ISO 10440-1 and ISO 10440-2. Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations.
This document does not apply to other types of shaft seals such as clearance seals, restrictive ring seals or oil seals.
This document is a supplement to API Std 692, 1st edition (2018), the requirements of which are applicable with the exceptions specified in this document.
Erdöl-, petrochemische und Erdgasindustrie - Trockene Gasdichtungssysteme für Axial-, Radial- und Schraubenverdichter und Expander (ISO 6368:2021)
Industries du pétrole, de la pétrochimie et du gaz naturel - Systèmes d'étanchéité au gaz pour les compresseurs axiaux, centrifuges, à vis et les turbodétendeurs (ISO 6368:2021)
Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina - Tesnilni sistemi s suhim plinom za aksialne, centrifugalne in rotacijske vijačne kompresorje in ekspanderje (ISO 6368:2021)
Ta dokument se uporablja za tesnilne sisteme s suhim plinom za aksialne, centrifugalne ter rotacijske vijačne kompresorje in ekspanderje, kot je opisano v standardih ISO 10439 (vsi deli), ISO 10440-1 in ISO 10440-2. Čeprav je prvotno namenjen uporabi v naftnih rafinerijah, se lahko uporablja tudi v petrokemičnih obratih, plinarnah, obratih z utekočinjenim zemeljskim plinom (LNG) in obratih za proizvajanje plina. Podane informacije so namenjene za pomoč pri izbiri sistema, ki je najprimernejši za tveganja in okoliščine v različnih namestitvah. Ta dokument se ne uporablja za druge vrste tesnil za gredi, kot so labirintna, omejevalna ali oljna tesnila. Ta dokument dopolnjuje standard API 692, prvo izdajo (2018), katerega zahteve se uporabljajo za izjeme, določene v tem dokumentu.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2022
Nadomešča:
SIST EN ISO 10438-4:2008
Petrokemična industrija ter industrija za predelavo nafte in zemeljskega plina -
Tesnilni sistemi s suhim plinom za aksialne, centrifugalne in rotacijske vijačne
kompresorje in ekspanderje (ISO 6368:2021)
Petroleum, petrochemical and natural gas industries - Dry gas sealing systems for axial,
centrifugal, and rotary screw compressors and expanders (ISO 6368:2021)
Erdöl-, petrochemische und Erdgasindustrie - Trockene Gasdichtungssysteme für Axial-,
Radial- und Schraubenverdichter und Expander (ISO 6368:2021)
Industries du pétrole, de la pétrochimie et du gaz naturel - Systèmes d'étanchéité au gaz
pour les compresseurs axiaux, centrifuges, à vis et les turbodétendeurs (ISO 6368:2021)
Ta slovenski standard je istoveten z: EN ISO 6368:2021
ICS:
75.180.20 Predelovalna oprema Processing equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6368
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 75.180.20 Supersedes EN ISO 10438-4:2007
English Version
Petroleum, petrochemical and natural gas industries - Dry
gas sealing systems for axial, centrifugal, and rotary screw
compressors and expanders (ISO 6368:2021)
Industries du pétrole, de la pétrochimie et du gaz Erdöl-, petrochemische und Erdgasindustrie -
naturel - Systèmes d'étanchéité au gaz pour les Trockene Gasdichtungssysteme für Axial-, Radial- und
compresseurs axiaux, centrifuges, à vis et les Schraubenverdichter und Expander (ISO 6368:2021)
turbodétendeurs (ISO 6368:2021)
This European Standard was approved by CEN on 5 November 2021.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6368:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6368:2021) 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 NEN.
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 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10438-4:2007.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 6368:2021 has been approved by CEN as EN ISO 6368:2021 without any modification.
INTERNATIONAL ISO
STANDARD 6368
First edition
2021-11
Petroleum, petrochemical and
natural gas industries — Dry gas
sealing systems for axial, centrifugal,
and rotary screw compressors and
expanders
Industries du pétrole, de la pétrochimie et du gaz naturel — Systèmes
d'étanchéité au gaz pour les compresseurs axiaux, centrifuges, à vis et
les turbodétendeurs
Reference number
ISO 6368:2021(E)
ISO 6368:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 6368:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
st
4 Supplements to API 692, 1 edition (2018) . 2
4.1 General requirements . 2
4.2 Sleeves, retainers, housings, disk, and carrier — Metals . 2
4.3 Module DD3 — Double seal gas differential pressure control . 2
4.4 Cooler . 2
4.5 Pressure-relieving devices . 3
4.6 Materials . 3
4.7 Valves . 3
4.8 System diagrams . 4
4.9 Applicable standards . 4
Bibliography . 5
iii
ISO 6368:2021(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document 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, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 12, Materials, equipment and offshore structures for petroleum,
petrochemical and natural gas industries, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This first edition of ISO 6368 cancels and replaces ISO 10438-4:2007, which has been technically
revised.
st
This document supplements API Std 692, 1 edition (2018).
The technical requirements of ISO 10438-4 and API Std 614 Part 4 used to be identical. In the meantime,
st
API Std 614 Part 4 has been technically revised and published as API Std 692, 1 edition (2018). The
purpose of this document is to bring it up to date, by referencing the current edition of API Std 692 and
including supplementary content.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO 6368:2021(E)
Introduction
Users of this document are informed that further or differing requirements can be needed for individual
applications. This document is not intended to inhibit a vendor from offering, or the purchaser accepting,
alternative equipment or engineering solutions for the individual application. This can be particularly
applicable where there is innovative or developing technology. Where an alternative is offered, the
vendor needs to identify any variations from this document and provide details.
v
INTERNATIONAL STANDARD ISO 6368:2021(E)
Petroleum, petrochemical and natural gas industries —
Dry gas sealing systems for axial, centrifugal, and rotary
screw compressors and expanders
1 Scope
This document is applicable to dry gas sealing systems for axial, centrifugal, and rotary screw
compressors and expanders as described in ISO 10439 (all parts), ISO 10440-1 and ISO 10440-2.
Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities,
gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information
provided is designed to aid in the selection of the system that is most appropriate for the risks and
circumstances involved in various
...
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