Road vehicles — Dimethyl Ether (DME) fuel system components — Part 3: 85% stop valve

This document specifies definitions of and general requirements to the 85 % stop valve, intended for use on the types of motor vehicles defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles using gaseous fuels in accordance with ISO 16861. It is not applicable to the following: a) fuel containers, except to the extent explicitly referred to in this document; b) stationary, ship, railroad vehicle or aircraft dimethyl ether (DME) engine installations; c) electronic fuel management; d) refuelling receptacles. NOTE 1 It is recognized that miscellaneous component properties not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 22760 series, including subjecting the component to the appropriate functional tests. NOTE 2 All pressures referred to in this document are gauge pressures unless otherwise specified.

Véhicules routiers — Composants des systèmes de combustible Diméthyle Ether (DME) — Partie 3: Valve de réservoir 85%

General Information

Status
Published
Publication Date
16-May-2024
Current Stage
6060 - International Standard published
Start Date
17-May-2024
Due Date
27-Jan-2024
Completion Date
17-May-2024
Ref Project

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Standard
ISO 22760-3:2024 - Road vehicles — Dimethyl Ether (DME) fuel system components — Part 3: 85% stop valve Released:17. 05. 2024
English language
6 pages
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Standards Content (Sample)


International
Standard
ISO 22760-3
First edition
Road vehicles — Dimethyl ether
2024-05
(DME) fuel system components —
Part 3:
85% stop valve
Véhicules routiers — Composants des systèmes de combustible
Diméthyle Ether (DME) —
Partie 3: Valve de réservoir 85%
Reference number
© ISO 2024
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
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking . . 2
5 Design and assembly . 2
6 Tests . 3
6.1 Applicability .3
6.2 Hydrostatic strength .3
6.3 Leakage .3
6.4 Continued operation .4
6.4.1 Cycle durability .4
6.4.2 Specific requirements for 85 % stop valves with a float .4
6.5 Deformation check .4
6.6 Float pressure test .4
Bibliography . 6

iii
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,
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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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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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 22, Road vehicles, Subcommittee SC 41, Specific
aspects for gaseous fuels.
A list of all parts in the ISO 22760 series can be found on the ISO website.
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
International Standard ISO 22760-3:2024(en)
Road vehicles — Dimethyl ether (DME) fuel system
components —
Part 3:
85% stop valve
1 Scope
This document specifies definitions of and general requirements to the 85 % stop valve, intended for use
on the types of motor vehicles defined in ISO 3833. It also provides general design principles and specifies
requirements for instructions and marking.
This document is applicable to vehicles using gaseous fuels in accordance with ISO 16861. It is not applicable
to the following:
a) fuel containers, except to the extent explicitly referred to in this document;
b) stationary, ship, railroad vehicle or aircraft dimethyl ether (DME) engine installations;
c) electronic fuel management;
d) refuelling receptacles.
NOTE 1 It is recognized that miscellaneous component properties not specifically addressed herein can be
examined for compliance with the criteria of any applicable part of the ISO 22760 series, including subjecting the
component to the appropriate functional tests.
NOTE 2 All pressures referred to in this document are gauge pressures unless otherwise specified.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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 22760-1, Road vehicles — Dimethyl ether (DME) fuel system components — Part 1: General requirements
and definitions
ISO 22760-2, Road vehicles — Dimethyl ether (DME) fuel system components — Part 2: Performance and gener
...

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