Road vehicles - Liquefied petroleum gas (LPG) fuel system components - Part 13: Multivalve

This document specifies general requirements for the multivalve component of liquefied petroleum gas fuel, intended for use on the types of motor vehicles as defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) electronic fuel management; e) refuelling receptacles. It is recognized that miscellaneous components not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 20766 series, including testing to the appropriate functional tests. All references to pressure in this document are considered gauge pressures unless otherwise specified. This document applies to devices which have a service pressure in the range of 110 kPa (butane rich at 20 °C) and 840 kPa (propane at 20 °C), hereinafter referred to in this document. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).

Véhicules routiers — Équipements pour véhicules utilisant le gaz de pétrole liquéfié (GPL) comme combustible — Partie 13: Multivannes

General Information

Status
Published
Publication Date
03-Jan-2022
Current Stage
6060 - International Standard published
Start Date
04-Jan-2022
Due Date
13-Mar-2022
Completion Date
04-Jan-2022

Overview

ISO 20766-13:2022 defines the general requirements for multivalve components used in liquefied petroleum gas (LPG) fuel systems for road vehicles (as defined in ISO 3833). The standard sets out design principles, marking and instruction requirements and identifies applicable tests to verify safe operation and compliance. It applies to vehicles in mono-fuel, bi-fuel or dual-fuel configurations using gaseous fuels per ISO 9162 and covers devices with service pressures within the specified LPG range.

Key Topics

  • Scope and applicability

    • Applicable to LPG multivalves fitted to vehicle fuel containers and systems for road vehicles.
    • Not applicable to fuel containers, stationary gas engines, container mounting hardware, electronic fuel management or refuelling receptacles.
  • Marking and traceability

    • Components must be marked to allow traceability of the manufacturer or agent, model/part number, working pressure (or working pressure and temperature range), type approval number and flow direction when required.
    • Recommended additional markings include fuel type, electrical ratings (if applicable), certification symbols, serial number/date code and a reference to ISO 20766-13.
  • Construction and assembly

    • The multivalve shall comply with the provisions of ISO 20766-1 and ISO 20766-2.
    • A multivalve may integrate multiple accessory functions in one housing, such as an 80 % stop valve, level indicator, pressure relief valve (PRV), remotely controlled service valve with excess-flow device, pressure relief device (PRD) and non-return valve, among others.
  • Service pressure range

    • The document applies to devices with a service pressure in the range of 110 kPa (butane rich at 20 °C) to 840 kPa (propane at 20 °C). Other service pressures can be accommodated by adjusting pressures using the appropriate factor (ratio).

Applications

ISO 20766-13:2022 is intended for designers, manufacturers, test houses and regulatory bodies involved with LPG fuel systems for road vehicles. Typical applications and benefits include:

  • Ensuring safe operation of integrated multivalve devices in LPG systems.
  • Providing requirements for marking and instructions to support installation, inspection and traceability.
  • Defining test requirements to confirm strength and leakage performance under representative temperatures and pressures.

Notably, hydrostatic strength testing is performed at 2,25 times the working pressure, and leakage and functional tests are carried out at specified temperatures and pressure factors as described in the standard.

Related Standards

  • ISO 20766-1 - General requirements and definitions
  • ISO 20766-2 - Performance and general test methods
  • ISO 20766 series parts (e.g., Parts 3, 4, 6, 7, 9, 11) covering specific components such as 80 % stop valves, level indicators, PRVs, remotely controlled shut-off valves, PRDs and manual shut-off valves
  • ISO 3833 - Vehicle types and definitions
  • ISO 9162 - LPG fuel specifications

For implementation or certification, consult the full ISO 20766-13:2022 text and coordinate with your national standards body or certification agency to ensure conformity and appropriate testing.

Standard

ISO 20766-13:2022 - Road vehicles — Liquefied petroleum gas (LPG) fuel system components — Part 13: Multivalve Released:1/4/2022

English language
4 pages
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Frequently Asked Questions

ISO 20766-13:2022 is a standard published by the International Organization for Standardization (ISO). Its full title is "Road vehicles - Liquefied petroleum gas (LPG) fuel system components - Part 13: Multivalve". This standard covers: This document specifies general requirements for the multivalve component of liquefied petroleum gas fuel, intended for use on the types of motor vehicles as defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) electronic fuel management; e) refuelling receptacles. It is recognized that miscellaneous components not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 20766 series, including testing to the appropriate functional tests. All references to pressure in this document are considered gauge pressures unless otherwise specified. This document applies to devices which have a service pressure in the range of 110 kPa (butane rich at 20 °C) and 840 kPa (propane at 20 °C), hereinafter referred to in this document. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).

This document specifies general requirements for the multivalve component of liquefied petroleum gas fuel, intended for use on the types of motor vehicles as defined in ISO 3833. It also provides general design principles and specifies requirements for instructions and marking. This document is applicable to vehicles (mono-fuel, bi-fuel or dual-fuel applications) using gaseous fuels in accordance with ISO 9162. It is not applicable to the following: a) fuel containers; b) stationary gas engines; c) container mounting hardware; d) electronic fuel management; e) refuelling receptacles. It is recognized that miscellaneous components not specifically addressed herein can be examined for compliance with the criteria of any applicable part of the ISO 20766 series, including testing to the appropriate functional tests. All references to pressure in this document are considered gauge pressures unless otherwise specified. This document applies to devices which have a service pressure in the range of 110 kPa (butane rich at 20 °C) and 840 kPa (propane at 20 °C), hereinafter referred to in this document. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio).

ISO 20766-13:2022 is classified under the following ICS (International Classification for Standards) categories: 43.060.40 - Fuel systems. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 20766-13:2022 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 20766-13
First edition
2022-01
Road vehicles — Liquefied petroleum
gas (LPG) fuel system components —
Part 13:
Multivalve
Véhicules routiers — Équipements pour véhicules utilisant le gaz de
pétrole liquéfié (GPL) comme combustible —
Partie 13: Multivannes
Reference number
© ISO 2022
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 Markings . 2
5 Construction and assembly .2
6 Tests . 3
6.1 Applicability . 3
6.2 Hydrostatic strength . 3
6.3 Leakage . 3
Bibliography . 4
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, 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 22, Road Vehicles, Subcommittee SC 41,
Specific aspects for gaseous fuels.
A list of all parts in the ISO 20766 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 20766-13:2022(E)
Road vehicles — Liquefied petroleum gas (LPG) fuel system
components —
Part 13:
Multivalve
1 Scope
This document specifies general requirements for the multivalve component of l
...

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