1、BRITISH STANDARD BS EN ISO 407:2004 Small medical gas cylinders Pin-index yoke-type valve connections The European Standard EN ISO 407:2004 has the status of a British Standard ICS 11.040.10 BS EN ISO 407:2004 This British Standard was published under the authority of the Standards Policy and Strate
2、gy Committee on 10 December 2004 BSI 10 December 2004 ISBN 0 580 45013 9 National foreword This British Standard is the official English language version of EN ISO 407:2004. It is identical with ISO 407:2004. It supersedes BS EN 850:1997 which is withdrawn. The UK participation in its preparation wa
3、s entrusted by Technical Committee PVE/3, Gas containers, to Subcommittee PVE/3/1, Valve fittings for gas containers, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which im
4、plement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication
5、does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Euro
6、pean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page
7、, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 24, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROP
8、ENNE EUROPISCHENORM ENISO407 November2004 ICS11.040.10 Englishversion SmallmedicalgascylindersPinindexyoketypevalve connections(ISO407:2004) PetitesbouteillesgazmdicauxRaccordsderobinets dutypetrieravecergotsdescurit(ISO407:2004) ThisEuropeanStandardwasapprovedbyCENon10September2004. CENmembersarebo
9、undtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. This
10、EuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cy
11、prus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCH
12、ESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO407:2004:E Foreword This document (EN ISO 407:2004) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders“ in collab
13、oration 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 May 2005, and conflicting nationa
14、l standards shall be withdrawn at the latest by May 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ger
15、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 407:2004 has been approved by CEN as EN ISO 407:2004 without any modifica
16、tions. ENISO407:2004 Reference number ISO 407:2004(E)NINRETOITALAN ADNATSDR OSI 047 Thtide driino -400210-11 Small medical gas cylinders Pin-index yoke-type valve connections Petites bouteilles gaz mdicaux Raccords de robinets du type trier avec ergots de scurit Referecne unbmer OSI 2:7040)E(40 OSI
17、4002INTERNATIONAL STANDARD ISO 407 Third edition 2004-11-01 m llamSelacid gc saynil sred ni-niPxed yo-ektyep valve nocnitcesno tePiset betuoillse agz mcidxua caRcords r edibosten ud ytep rtire vace restog de scurit ENISO407:2004 ii ENISO407:2004 iiiContents Page Foreword iv 1 Scope 1 2 Normative ref
18、erences . 1 3 Valve. 1 4 Yoke 2 5 Basic dimensions 2 5.1 General. 2 5.2 Pin-index yoke-type valve body 3 5.3 Single-pin yoke-type valve connection system . 4 5.4 Two-pin yoke-type valve connection system with the pins in a single row . 4 5.5 Two-pin yoke-type valve connection system with the pins in
19、 a double row 5 5.6 Basic dimensions 5 6 Requirements for alternative designs of yoke-type valve connections 6 6.1 Requirements for the design of the connecting yoke. 6 6.2 Examples of alternative construction for the connecting yoke . 7 7 Dimensions and positions of the holes and pins for yoke-type
20、 valve connections 9 7.1 General. 9 7.2 Outlet connection with single-pin system 9 7.3 Outlet connections with two-pin/single-row system. 10 7.4 Outlet connection with two-pin/double-row system . 20 ENISO407:2004iv Foreword ISO (the International Organization for Standardization) is a worldwide fede
21、ration 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 commi
22、ttee. 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 accordan
23、ce with the rules given in the ISO/IEC Directives, Part 2. 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
24、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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 407 was prepared by Technical Comm
25、ittee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder fittings. This third edition cancels and replaces the second edition (ISO 407:1991), which has been technically revised. ENISO407:2004INTENRATIONAL TSANDADR IS:704 O4002(E)1Small medical gas cylinders Pin-index yoke-type valve connections 1
26、 Scope This International Standard concerns pin-index yoke-type valve connections for small medical gas cylinders, with a maximum working pressure (filling pressure at 15 C) of 200 bar. This type of connection is typically used for small cylinders (5 l or below). In some cases, it may be used for la
27、rger cylinders. In this latter case, consideration shall be given to the need for valve protection. 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 t
28、he dimensions and positions for the holes and pins for the outlet connections for the gases and gas mixtures given in Table 1. This International Standard applies to small medical gas cylinders used for patient care, including therapeutic, diagnostic and prophylactic applications, in hospitals and f
29、or emergency treatment. 2 Normative references The following referenced documents are indispensable for the application 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. IS
30、O 32:1977, Gas cylinders for medical use Marking for identification of content 3 Valve Each small medical gas cylinder can be fitted with a yoke valve (see Clause 5). The yoke valve shall have location holes of the dimensions and in the positions indicated in Clause 7 for the appropriate gas or gas
31、mixture. The name or chemical symbol of the gas or gas mixture shall be clearly and indelibly stamped on the valve. ENISO407:20042 Table 1 Allocated gases and gas mixtures Gas or gas mixture Chemical symbol Oxygen O 2Oxygen/carbon dioxide (CO 2u 7 %) O 2+ CO 2 , Oxygen/helium (He u 80 %) O 2+ He Eth
32、ylene C 2 H 4Nitrous oxide (with and without draw-off) N 2 O Cyclopropane C 3 H 6Helium and helium/oxygen (O 27 %) CO 2Medical air Air Nominal mixture 50 % oxygen/50 % nitrous oxide (47,5 % N 2 O 52,5 %) O 2+ N 2 O Nitrogen N 2Mixture of air, helium and carbon monoxide (CO 1 %) Air + He + CO 4 Yoke
33、The connecting yoke shall conform to the requirements and dimensions given in Clauses 5 and 6. The yoke shall be fitted with pins, the dimensions and the positions of which correspond to the holes in the valve as indicated in Clause 7 for the appropriate gas or gas mixture. The name or chemical symb
34、ol of the gas or gas mixture shall be clearly and indelibly stamped on the yoke. If an identification colour is used, it shall be in conformity with ISO 32. Examples of the alternative designs for the connecting yoke are given in 6.2. In Figures 3 and 4, the circled numbers and letters are the pin-h
35、ole positions. 5 Basic dimensions 5.1 General The basic dimensions for pin-index yoke-type valve connections are shown in Figures 1 to 4, and are listed in Table 2. ENISO407:2004 35.2 Pin-index yoke-type valve body Dimensions in millimetres aApplicable only to single-key valves. Figure 1 Pin-index y
36、oke-type valve body ENISO407:20044 5.3 Single-pin yoke-type valve connection system Figure 2 Single-pin yoke-type valve connection system 5.4 Two-pin yoke-type valve connection system with the pins in a single row Figure 3 Two-pin yoke-type valve connection system with the pins in a single row ENISO
37、407:2004 55.5 Two-pin yoke-type valve connection system with the pins in a double row Figure 4 Two-pin yoke-type valve connection system with the pins in a double row 5.6 Basic dimensions See Table 2. ENISO407:20046 Table 2 Basic dimensions for pin-index yoke-type valve connections Dimension mm Dime
38、nsion mm a 0,8 0,2 25 + e 0,8 max b 0,4 0 22,2 + f 0,8 max c 16 min g 1,6 0,4 D 0,2 0 7 + h a20 0,5 D 02,4 0,8 k 16,5 min D 10,1 0 4,75 + l 144,5 min D 2 5,8 to 5,9 l 222 min D 40 0,2 6,3 l 3b8 min D 50 0,5 6 l 4b9,6 max D 6c7 min l 50,50 5,5 +d 0 0,2 6,5 l 60 0,5 5,5 d 14 0,1 l 73 to 3,6 d 20 0,1 5
39、,4 l 8d15 min d 316 0,5 r 14,3 nom. d 49 0,2 r 112 nom. r 217,5 nom. aDimensions h and q, q 1(see Clause 6). As an alternative, these dimensions may be given in order to satisfy the requirements of 6.1 g). bApplicable only if a projecting-type safety plug is used. cDimension D 6is the dimension at t
40、he top of the cone. dThis dimension is very important. 6 Requirements for alternative designs of yoke-type valve connections 6.1 Requirements for the design of the connecting yoke The design of the connecting yoke shall meet the following requirements. a) A gas-tight seal shall only be possible when
41、 the pins in the yoke correspond to the holes in the valve; b) when the pins in the yoke do not correspond to the holes in the valve, a gas-tight seal shall not be possible and damage to the yoke or the valve shall be prevented; c) pins shall be fixed or assembled in such a manner that they cannot b
42、e removed by the user or become loose in service; d) the sealing washer shall be a retained fit on the yoke spigot; ENISO407:2004 7e) the use of more than one sealing washer is not permitted; f) the yoke shall be able to resist, without permanent deformation, the load resulting from a torque of 50 N
43、m applied to the valve clamping screw or locking device; g) the dimensions of the yoke shall limit the movement of the valve in the yoke to a maximum of 6 about the long axis prior to pin engagement. 6.2 Examples of alternative construction for the connecting yoke Three alternative designs of pin-in
44、dex yoke-type connections are shown in Figures 5 to 7. Dimension mm p a44,5 max q b0,50 0 24 +s c0,8 min aMay be reduced to 35 mm if clearance is provided for projecting-type safety plug. bSee the note for dimension h in Table 2. cApplicable only if a projecting-type safety plug is used. Figure 5 Fi
45、rst alternative ENISO407:20048 Dimension mm p 130,2 max q 1a0,50 0 24 +s 1b0,8 min aSee the note for dimension h in Table 2. bApplicable only if a projecting-type safety plug is used. aView with clamping screw removed. Figure 6 Second alternative ENISO407:2004 9Figure 7 Third alternative 7 Dimension
46、s and positions of the holes and pins for yoke-type valve connections 7.1 General The dimensions and positions of the holes and pins for yoke-type valve connections are shown in Figures 8 to 18. In Figures 9 to 18, the circled numbers are the pin-hole positions. 7.2 Outlet connection with single-pin
47、 system Outlet connection for a nominal mixture of 50 % oxygen/50 % nitrous oxide (47,5 % N 2 O 52,5 %). ENISO407:200410 Dimension mm r 14,3 nom Figure 8 Outlet connection for a nominal mixture of 50 % oxygen/50 % nitrous oxide 7.3 Outlet connections with two-pin/single-row system 7.3.1 Outlet conne
48、ction for oxygen Dimension mm t 13,6 0,07 u 4,4 0,15 w 8,8 0,07 Figure 9 Outlet connection for oxygen ENISO407:2004 117.3.2 Outlet connection for oxygen/carbon dioxide mixture (CO 2u u u u 7 %) Dimension mm t 13,6 0,07 t 112,4 0,07 u 4,4 0,15 w 111,55 0,07 Figure 10 Outlet connection for oxygen/carbon dioxide mixture (CO 2u u u u 7 %) ENISO407:200412 7.3.3 Outlet connection for oxygen/helium mixture (He u u u u 80 %) Dimension mm t 13,6 0,07 t 214,2 0
