1、BS ISO 13948-2:2016Diesel engines Fuel injectionpumps and fuel injector low-pressure connectionsPart 2: Non-threaded (push-on) connectionsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 13948-2:2016 BRITISH STANDARDNational forewordThis British Standard is the
2、 UK implementation of ISO 13948-2:2016. It supersedes BS ISO 13948-2:2012 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee MCE/22, Engines for road vehicles.A list of organizations represented on this committee can be obtained on request to its secretar
3、y.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 91400 3 ICS 43.060.40 Compliance with a British Standard cannot c
4、onfer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 13948-2:2016 ISO 2016Diesel engines Fuel injection pumps a
5、nd fuel injector low-pressure connections Part 2: Non-threaded (push-on) connectionsMoteurs diesels Raccords basse pression pour pompes dinjection de combustible et porte-injecteurs de combustible complets Partie 2: Raccords non filets ( pression)INTERNATIONAL STANDARDISO13948-2Third edition2016-12-
6、15Reference numberISO 13948-2:2016(E)BS ISO 13948-2:2016ISO 13948-2:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or
7、 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 ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 C
8、P 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 13948-2:2016ISO 13948-2:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Connection designs and applications . 14.1 Type A: nipple connec
9、tion . 14.2 Type B: stand pipe connection 24.3 Type C: “quick connector coupling” connection. 25 Dimensions and surface quality . 35.1 Type A connection ends 35.1.1 Nipple types . 35.1.2 Basic dimensions and tolerances. 55.1.3 Radii 65.1.4 Surface quality . 65.2 Type B connection end . 75.3 Type C c
10、onnection end . 86 Designation .11Bibliography .12 ISO 2016 All rights reserved iiiContents PageBS ISO 13948-2:2016ISO 13948-2:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Int
11、ernational 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 w
12、ith 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 Directive
13、s, 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
14、 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 declaration
15、s 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 meaning of ISO specific terms and expressions related to conformity assessment, as well as information about IS
16、Os 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.The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 34, Propulsion, powertrain and powertrain fluids.This t
17、hird edition cancels and replaces the second edition (ISO 13948-2:2012), which has been technically revised with the following changes: a normative reference has been made to ISO 4288 for the measurement of surface texture.A list of all the parts in the ISO 13948 series can be found on the ISO websi
18、te.iv ISO 2016 All rights reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)IntroductionIt is recognized that a large variety of low-pressure connections exist on fuel injection equipment, using different sealing principles, as well as designs. This document attempts to provide the user with a common se
19、t of preferred types.This document is divided into two parts, covering threaded connections (ISO 13948-1) and non-threaded (push-on) connections (ISO 13948-2) for use with low-pressure fuel supply and return, boost air pressure and lubricating oil supply and return. ISO 2016 All rights reserved vBS
20、ISO 13948-2:2016BS ISO 13948-2:2016Diesel engines Fuel injection pumps and fuel injector low-pressure connections Part 2: Non-threaded (push-on) connections1 ScopeThis document specifies requirements for the connection ends of push-on connections used with fuel injection equipment.Three types of pus
21、h-on connections (types A, B and C) are described in this document.NOTE Low-pressure connections to fuel filters are covered in other International Standards; see the bibliography. High-pressure end-connections for pumps and injectors are covered in ISO 2974 and ISO 13296.2 Normative referencesThe f
22、ollowing 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
23、 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture.3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 7876 (all parts) apply.ISO and IEC maintain terminological datab
24、ases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 4 Connection designs and applications4.1 Type A: nipple connectionEXAMPLE See Figure 1.This design is intended for u
25、se directly with the mating hose (2) or in conjunction with a retaining clip around the hose (not shown) for a more secure connection.The nipple (1) can be machined (see Figure 4), formed (see Figure 5 and Figure 6) or moulded (see Figure 7).INTERNATIONAL STANDARD ISO 13948-2:2016(E) ISO 2016 All ri
26、ghts reserved 1BS ISO 13948-2:2016ISO 13948-2:2016(E)Key1 nipple2 hoseFigure 1 Type A connection (principle)4.2 Type B: stand pipe connectionEXAMPLE See Figure 2.This design is used in conjunction with proprietary push-on connections (3) attached to the mating hose (2) that seals by compressing ring
27、 seals (4) around the outside diameters of the stand pipe (1) and of the mating hose (2).An identification may be applied to indicate to the user that the hose is fully engaged (see Figure 10).Key1 stand pipe2 hose3 push-on connection4 ring sealsFigure 2 Type B connection (principle)4.3 Type C: “qui
28、ck connector coupling” connectionNOTE As specified in SAE J20449.EXAMPLE See Figure 3.This design is used in conjunction with proprietary push-on “quick connector couplings” attached to the mating male tube end form. The quick connector coupling contains one or more O-ring seals to seal along the ma
29、le tube end outer surface, and a latching device to engage with the collar diameter feature.The male tube end form is shown in Figure 11 and the dimensions are defined in Table 4 and Table 5.2 ISO 2016 All rights reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)Key1 male tube end2 female connection end
30、3 stem4 quick connector coupling5 section of hose or tubeFigure 3 Type C connection (principle)5 Dimensions and surface quality5.1 Type A connection ends5.1.1 Nipple types5.1.1.1 Nipple, machined, type A.1Dimensions in millimetresNOTE For the parameters, see Table 1.Figure 4 Nipple, type A.1 ISO 201
31、6 All rights reserved 3BS ISO 13948-2:2016ISO 13948-2:2016(E)5.1.1.2 Nipple, formed, types A.25.1.1.2.1 Nipple, bulge type A.2.1Dimensions in millimetresNOTE For the parameters, see Table 1.Figure 5 Nipple, type A.2.15.1.1.2.2 Nipple, bulge and spool type, A.2.2Dimensions in millimetresNOTE For the
32、parameters, see Table 1.Figure 6 Nipple, type A.2.25.1.1.3 Nipple, moulded, type A.3See Figure 7.4 ISO 2016 All rights reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)Dimensions in millimetresaWithin this area: moulded joint misalignment: 0,05 mm max.; moulded joint parting height: 0,05 mm max.NOTE Fo
33、r the parameters, see Table 1.Figure 7 Nipple, type A.35.1.2 Basic dimensions and tolerancesSee Table 1.Table 1 Basic dimensions and tolerances for nipples, types ADimensions in millimetresTypeL1nom.L2D1D2D3D4max.D5min.A.1 (machined)20 to 243,2 0,5 12,1 0,1 11,3 0,2 13,3 0,1 10 3,2 0,5 10,1 0,1 9,3
34、0,2 11,1 0,1 8 3,2 0,5 8,1 0,1 7,3 0,2 9,1 0,1 6 16 2,8 0,5 6,35 0,1 6,2 0,2 7,4 0,1 a12 2,2 0,5 4,0 0,1 3,8 0,2 5 0,1 2,6 A.2.1 (formed) bulge type3,2 0,5 12,1 0,1 11,3 0,2 13,3 0,3 10,2 3,2 0,5 10,1 0,1 9,3 0,2 11,1 0,3 8,2 3,2 0,5 8,1 0,1 7,3 0,2 9,1 0,3 6,2 2,8 0,5 6,35 0,1 6,1 0,2 7,4 0,3 5 2,2
35、 0,5 4,76 0,1 4,6 0,2 5,6 0,3 3,5 A.2.2 (formed) bulge and spool type20 to 243,2 0,5 12,1 0,1 11,3 0,2 13,3 0,3 10,2 13,23,2 0,5 10,1 0,1 9,3 0,2 11,1 0,3 8,2 11,23,2 0,5 8,1 0,1 7,3 0,2 9,1 0,3 6,2 928 2,8 0,5 6,35 0,1 6,1 0,2 7,4 0,3 5 7,128 2,2 0,5 4,76 0,1 4,6 0,2 5,6 0,3 3,5 5,3 ISO 2016 All ri
36、ghts reserved 5BS ISO 13948-2:2016ISO 13948-2:2016(E)TypeL1nom.L2D1D2D3D4max.D5min.A.3 (moulded)20 to 243,2 0,5 12,1 0,1 11,3 0,2 13,3 0,1 9,2 3,2 0,5 10,1 0,1 9,3 0,2 11,1 0,1 7, 2 3,2 0,5 8,1 0,1 7,3 0,2 9,1 0,1 5,2 16 2,8 0,5 6,35 0,1 6,2 0,2 7,4 0,1 a12 2,2 0,5 4,0 0,1 3,8 0,2 5 0,1 2,6 aBore si
37、ze specified by manufacturer.5.1.3 RadiiDimensions of the nipple radii are given in Table 2.Positions of the nipple radii are shown in Figure 8.aOnly for moulded nipples.NOTE For the parameters, see Table 2.Figure 8 Nipple radiiTable 2 Dimensions of radii for nipples, types ADimensions in millimetre
38、sNipple typeR1min.R2nom.R3nom.R4amin.Machined 0,2 1 to 1,5 0,5 to 1 Formed 0,2 1 to 1,5 0,5 to 1 Moulded 0,2 1 to 1,5 1aOnly for moulded nipples.5.1.4 Surface qualityThe outside surface quality requirements (roughness and imperfections) are given in Figure 9.Table 1 (continued)6 ISO 2016 All rights
39、reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)Surface roughness in micrometres, measured according to ISO 4288aMeasured lengthwise and crosswise.bNo longitudinal marks are permitted.cSingle imperfections with a depth up to 0,05 mm and a length up to 0,5 mm are permitted.Figure 9 Outside surface qual
40、ity requirements5.2 Type B connection endSee Figure 10.Surface roughness in micrometres, measured according to ISO 4288aIdentification (optional).bBore size specified by manufacturer.NOTE 1 Materials can be different, for example plastics.NOTE 2 For the parameters, see Table 3.Figure 10 Stand pipe,
41、type BTable 3 Dimensions and tolerances for type BDimensions in millimetresD1L R8 0,05 28,5 0,5 120305,+10 0,05 28,5 0,5 120305,+ ISO 2016 All rights reserved 7BS ISO 13948-2:2016ISO 13948-2:2016(E)5.3 Type C connection endDimensions in millimetres Surface roughness in micrometres, measured accordin
42、g to ISO 4288Keyd nominal diameterD2seal diameterD3collar diameterD5minimum inner diameterL1lengthL2collar widthL3clearanceaMinimum 0,35 annular surface perpendicular to tube.bCollar to start of bend: see connector drawings for minimum distance.cMeasure across lay, tool marks or weld seams. No flows
43、 to exceed 30 m Rz.NOTE For the parameters, see Table 4 and Table 5.Figure 11 Male tube end form, type C8 ISO 2016 All rights reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)Table4 Dimensions and tolerances for typeC (except for polyamide-coated end forms)Dimensions in millimetresDinchD1anom.D2D3D5min
44、.L1L2L3min.Ramin.Rbmax.Rcmax.Rdmax.L4L5min.3/164,784,63 0,067,10,152,219,93 0,251,750,1580,80,30,50,252 0,200,81/46,356,3 0,068,750,153,621,250,251,6 0,1570,80,30,50,252 0,200,95/1687,89 0,0610,980,154,721,450,251,6 0,15610,40,450,352,1 0,200,988 0,0811 0,15521 0,251,750,15610,350,60,352,1 0,200,93/
45、89,59,49 0,0612,94 0,156,321,85 0,251,6 0,156,510,60,450,52,1 0,201,17/16109,89 0,0613,42 0,26,624,95 0,251,75 0,20610,60,50,62,1 0,201,11010 0,0813,5 0,26,424 0,251,75 0,20610,60,50,62,1 0,201,11211,8 0,0816,5 0,257,526,62 0,252,5 0,208110,60,62,2 0,201,51/212,712,61 0,116,51 0,258,126,62 0,252,5 0
46、,20810,80,60,62,2 0,201,55/81615,820,119,18 0,2511,126,62 0,252,5 0,20810,50,60,52,2 0,201,753/41918,9 0,122,330,2513,226,62 0,252,5 0,20810,50,60,52,2 0,201,7557/642322,70,1525,70,251629,5 0,252,5 0,209,510,30,60,32,2 0,201,75125,425,5 0,1528,2 0,251929,5 0,252,5 0,209,510,150,60,22,2 0,201,75aTube
47、 diameter (nominal coupling size); not shown in Figure11. ISO 2016 All rights reserved 9BS ISO 13948-2:2016ISO 13948-2:2016(E)Table5 Dimensions and tolerances for typeC (polyamide-coated end forms)DinchD1anom.D2D3D5min.L1L2L3min.Ramin.Rbmax.Rcmax.Rdmax.L4L5min.1/46,356,3 0,068,750,153,621,250,252,0
48、0,2070,80,30,50,252 0,200,95/1687,89 0,0610,980,154,721,450,252,0 0,20610,40,450,352,1 0,200,93/89,59,49 0,0612,94 0,156,321,85 0,252,0 0,206,510,60,450,52,1 0,201,17/16109,89 0,0613,42 0,26,624,95 0,252,0 0,25610,60,50,62,1 0,201,1aTube diameter (nominal coupling size); not shown in Figure11.10 ISO 2016 All rights reservedBS ISO 13948-2:2016ISO 13948-2:2016(E)6 DesignationLow-pressure connections in accordance
