Small medical gas cylinders - Pin-index yoke-type valve connections (ISO 407:2021)

This document is applicable to pin-index yoke-type valve connections for medical gas cylinders, with
a working pressure up to a maximum of 200 bar or test pressure up to a maximum of 300 bar, or both.
NOTE 1 This type of connection is primarily used for small cylinders (5 l or below).
NOTE 2 In this document the unit bar is used, due to its universal use in the field of technical gases. It should,
however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa (1 bar = 105 Pa =
105 N/m2).
This document specifies:
— basic dimensions;
— requirements for alternative designs of the yoke-type valve connections;
— dimensions and positions for the holes and pins for the outlet connections.
It also specifies the dimensions and positions for the holes and pins for the outlet connections for gases
and gas mixtures.

Kleine Gasflaschen für die medizinische Anwendung - Ventilseitenstutzen mit Anschlussbügel nach dem PIN-Index-System (ISO 407:2021)

Dieses Dokument ist anzuwenden für Bügelverschlüsse nach dem Pin-Index-System für Gasflaschen für die medizinische Anwendung, mit einem maximalen Arbeitsdruck von 200 bar oder einem Prüfdruck von bis zu 300 bar oder beidem.
ANMERKUNG 1 Diese Verbindungsart wird hauptsächlich an kleinen Gasflaschen (5 l oder weniger) angewendet.
ANMERKUNG 2 In diesem Dokument wird die Einheit bar verwendet, da sie im Bereich der technischen Gase universell einsetzbar ist. Es sollte jedoch beachtet werden, dass bar keine SI Einheit ist und dass die entsprechende SI Einheit für den Druck Pa ist (1 bar = 105 Pa = 105 N/m2).
Dieses Dokument legt Folgendes fest:
- Grundmaße;
- Anforderungen für alternative Auslegungen von Bügelventilverschlüssen;
- Maße und Anordnungen der Passlöcher und -stifte für die Anschlussverbindungen.
Es legt auch die Maße und Anordnungen der Passlöcher und  stifte für die Anschlussverbindungen für Gase und Gasgemische fest.

Petites bouteilles à gaz médicaux - Raccords de robinets du type étrier avec ergots de sécurité (ISO 407:2021)

Male plinske jeklenke za uporabo v medicini - Ventilski priključni nastavki po sistemu pin-index (ISO 407:2021)

General Information

Status
Published
Public Enquiry End Date
02-Apr-2020
Publication Date
19-Aug-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
07-Jul-2021
Due Date
11-Sep-2021
Completion Date
20-Aug-2021

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SLOVENSKI STANDARD
SIST EN ISO 407:2021
01-september-2021
Nadomešča:
SIST EN ISO 407:2005
Male plinske jeklenke za uporabo v medicini - Ventilski priključni nastavki po
sistemu pin-index (ISO 407:2021)

Small medical gas cylinders - Pin-index yoke-type valve connections (ISO 407:2021)

Kleine Gasflaschen für die medizinische Anwendung - Ventilseitenstutzen mit
Anschlussbügel nach dem PIN-Index-System (ISO 407:2021)

Petites bouteilles à gaz médicaux - Raccords de robinets du type étrier avec ergots de

sécurité (ISO 407:2021)
Ta slovenski standard je istoveten z: EN ISO 407:2021
ICS:
11.040.10 Anestezijska, respiratorna in Anaesthetic, respiratory and
reanimacijska oprema reanimation equipment
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
SIST EN ISO 407:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 407:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 407:2021
EN ISO 407
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 11.040.10 Supersedes EN ISO 407:2004
English Version
Small medical gas cylinders - Pin-index yoke-type valve
connections (ISO 407:2021)

Petites bouteilles à gaz médicaux - Raccords de Kleine Gasflaschen für die medizinische Anwendung -

robinets du type étrier avec ergots de sécurité (ISO Ventilseitenstutzen mit Anschlussbügel nach dem PIN-

407:2021) Index-System (ISO 407:2021)
This European Standard was approved by CEN on 13 May 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 407:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 407:2021
EN ISO 407:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 407:2021
EN ISO 407:2021 (E)
European foreword

This document (EN ISO 407:2021) has been prepared by Technical Committee ISO/TC 58 "Gas

cylinders" in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the

secretariat of which is held by BSI.

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 December 2021, and conflicting national standards

shall be withdrawn at the latest by December 2021.

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 407:2004.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, 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 407:2021 has been approved by CEN as EN ISO 407:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 407:2021
---------------------- Page: 6 ----------------------
SIST EN ISO 407:2021
INTERNATIONAL ISO
STANDARD 407
Fourth edition
2021-06
Small medical gas cylinders — Pin-
index yoke-type valve connections
Petites bouteilles à gaz médicaux — Raccords de robinets du type
étrier avec ergots de sécurité
Reference number
ISO 407:2021(E)
ISO 2021
---------------------- Page: 7 ----------------------
SIST EN ISO 407:2021
ISO 407:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 407:2021
ISO 407:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Valve ................................................................................................................................................................................................................................... 1

5 Yoke .................................................................................................................................................................................................................................... 2

6 Basic dimensions.................................................................................................................................................................................................. 2

6.1 General ........................................................................................................................................................................................................... 2

6.2 Pin-index yoke-type valve body................................................................................................................................................ 3

6.3 Single-pin yoke-type valve connection system............................................................................................................ 4

6.4 Two-pin yoke-type valve connection system with the pins in a single row ....................................... 4

6.5 Two-pin yoke-type valve connection system with the pins in a double row .................................... 5

6.6 Basic dimensions ................................................................................................................................................................................... 5

7 Requirements for alternative designs of yoke-type valve connections .......................................................6

7.1 Requirements for the design of the connecting yoke ............................................................................................ 6

7.2 Examples of alternative construction for the connecting yoke ..................................................................... 6

8 Dimensions and positions of the holes and pins for yoke-type valve connections .........................9

8.1 General ........................................................................................................................................................................................................... 9

8.2 Outlet connection with single-pin system ....................................................................................................................... 9

8.3 Outlet connections with two-pin/single-row system .........................................................................................10

8.3.1 Outlet connection for oxygen .............................................................................................................................10

8.3.2 Outlet connection for oxygen/carbon dioxide mixture (CO ≤ 7 %) ...............................11

8.3.3 Outlet connection for oxygen/helium mixture (He ≤ 80 %) ...................................................11

8.3.4 Outlet connection for ethylene .........................................................................................................................12

8.3.5 Outlet connection for nitrous oxide (with or without liquid draw-off) ........................12

8.3.6 Outlet connection for cyclopropane .............................................................................................................13

8.3.7 Outlet connection for helium and for helium/oxygen mixture (O < 20 %) .............13

8.3.8 Outlet connection for carbon dioxide (with or without liquid draw-off)

and for carbon dioxide/oxygen mixture (CO > 7 %) ...................................................................14

8.3.9 Outlet connection for medical air ...................................................................................................................14

8.3.10 Outlet connection for nitrogen .........................................................................................................................15

8.4 Outlet connection with two-pin/double-row system .........................................................................................15

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 407:2021
ISO 407:2021(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 58, Gas cylinders, Subcommittee SC 2,

Cylinders fittings, in collaboration with the European Committee for Standardization (CEN) Technical

Committee CEN/TC 23, Transportable gas cylinders, in accordance with the Agreement on technical

cooperation between ISO and CEN (Vienna Agreement).

This fourth edition cancels and replaces the third edition (ISO 407:2004), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— addition of a note in Figure 1 on the introduction of a radius to avoid stress concentration;

— addition of dimension m in Figure 1;

— revision of the basic dimensions for pin index yoke type value connections (see Table 2);

— addition of a requirement for the design of the connecting yoke.

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 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 407:2021
INTERNATIONAL STANDARD ISO 407:2021(E)
Small medical gas cylinders — Pin-index yoke-type valve
connections
1 Scope

This document is applicable to pin-index yoke-type valve connections for medical gas cylinders, with

a working pressure up to a maximum of 200 bar or test pressure up to a maximum of 300 bar, or both.

NOTE 1 This type of connection is primarily used for small cylinders (5 l or below).

NOTE 2 In this document the unit bar is used, due to its universal use in the field of technical gases. It should,

however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa (1 bar = 10 Pa =

5 2
10 N/m ).
This document specifies:
— basic dimensions;
— requirements for alternative designs of the yoke-type valve connections;
— dimensions and positions for the holes and pins for the outlet connections.

It also specifies the dimensions and positions for the holes and pins for the outlet connections for gases

and gas mixtures.
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 32, Gas cylinders for medical use — Marking for identification of content
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at
...

SLOVENSKI STANDARD
oSIST prEN ISO 407:2020
01-marec-2020
Male plinske jeklenke za uporabo v medicini - Ventilski priključni nastavki po
sistemu pin-index (ISO/DIS 407:2020)

Small medical gas cylinders - Pin-index yoke-type valve connections (ISO/DIS 407:2020)

Kleine Gasflaschen für die medizinische Anwendung - Ventilseitenstutzen mit
Anschlussbügel nach dem PIN-Index-System (ISO/DIS 407:2020)

Petites bouteilles à gaz médicaux - Raccords de robinets du type étrier avec ergots de

sécurité (ISO/DIS 407:2020)
Ta slovenski standard je istoveten z: prEN ISO 407
ICS:
11.040.10 Anestezijska, respiratorna in Anaesthetic, respiratory and
reanimacijska oprema reanimation equipment
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
oSIST prEN ISO 407:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 407:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 407:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 407
ISO/TC 58/SC 2 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2020-02-06 2020-04-30
Small medical gas cylinders — Pin-index yoke-type valve
connections

Petites bouteilles à gaz médicaux — Raccords de robinets du type à étrier avec ergots de sécurité

ICS: 11.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 407:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 407:2020
ISO/DIS 407:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 407:2020
ISO/DIS 407:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Valve ................................................................................................................................................................................................................................... 1

5 Yoke .................................................................................................................................................................................................................................... 2

6 Basic dimensions.................................................................................................................................................................................................. 2

6.1 General ........................................................................................................................................................................................................... 2

6.2 Pin-index yoke-type valve body................................................................................................................................................ 3

6.3 Single-pin yoke-type valve connection system............................................................................................................ 4

6.4 Two-pin yoke-type valve connection system with the pins in a single row ....................................... 4

6.5 Two-pin yoke-type valve connection system with the pins in a double row .................................... 5

6.6 Basic dimensions ................................................................................................................................................................................... 5

7 Requirements for alternative designs of yoke-type valve connections .......................................................6

7.1 Requirements for the design of the connecting yoke ............................................................................................ 6

7.2 Examples of alternative construction for the connecting yoke ..................................................................... 6

8 Dimensions and positions of the holes and pins for yoke-type valve connections .........................9

8.1 General ........................................................................................................................................................................................................... 9

8.2 Outlet connection with single-pin system ....................................................................................................................... 9

8.3 Outlet connections with two-pin/single-row system .........................................................................................10

8.3.1 Outlet connection for oxygen .............................................................................................................................10

8.3.2 Outlet connection for oxygen/carbon dioxide mixture (CO ≤ 7 %) ...............................11

8.3.3 Outlet connection for oxygen/helium mixture (He ≤ 80 %) ...................................................12

8.3.4 Outlet connection for ethylene .........................................................................................................................13

8.3.5 Outlet connection for nitrous oxide .............................................................................................................14

8.3.6 Outlet connection for cyclopropane .............................................................................................................15

8.3.7 Outlet connection for helium/oxygen mixture (O < 20 %) .................. ..................................16

8.3.8 Outlet connection for carbon dioxide and carbon dioxide/oxygen mixture

(CO > 7 %) ........................................................................................................................................................................17

8.3.9 Outlet connection for medical air ...................................................................................................................18

8.3.10 Outlet connection for nitrogen .........................................................................................................................19

8.4 Outlet connection with two-pin/double-row system .........................................................................................20

© ISO 2020 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 407:2020
ISO/DIS 407:2020(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 on 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 the following

URL: www .iso .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2,

Cylinders fittings.

This fourth edition cancels and replaces the third edition (ISO 407:2004), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— addition of a note in Figure 1 on the introduction of a radius to avoid stress concentration;

— addition of dimension "m" in Figure 1;

— the basic dimensions for pin index yoke type value connections have been revised (see Table 2);

— addition of a requirement for the design of the connecting yoke.

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 2020 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 407:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 407:2020(E)
Small medical gas cylinders — Pin-index yoke-type valve
connections
1 Scope

This document concerns pin-index yoke-type valve connections for medical gas cylinders, with a

working pressure up to a maximum of 200 bar and/or test pressure up to a maximum of 300 bar.

NOTE This type of connection is primarily used for small cylinders (5 l or below).

It specifies:
— basic dimensions;
— requirements for alternative designs of the yoke-type valve connections;
— dimensions and positions for the holes and pins for the outlet connections.

It also specifies the dimensions and positions for the holes and pins for the outlet connections for the

gases and gas mixtures given in Table 1.
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 32:1977, Gas cylinders for medical use — Marking for identification of content

3 Terms and definitions
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Valve

Each small medical gas cylinder can be fitted with a yoke valve (see Clause 6). The yoke valve shall have

location holes of the dimensions and in the positions indicated in Clause 8 for the appropriate gas or gas

mixture.

The name or chemical symbol of the gas or gas mixture shall be clearly and indelibly stamped on the valve.

© ISO 2020 – All rights reserved 1
---------------------- Page: 7 ----
...

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