© ISO 2016 Diesel engines — Fuel injection pumps and fuel injector low pressure connections — Part 2 Non threaded (push on) connections Moteurs diesels — Raccords basse pression pour pompes d’injectio[.]
INTERNATIONAL STANDARD ISO 13948-2 Third edition 2016-12-15 Diesel engines — Fuel injection pumps and fuel injector low-pressure connections — Part 2: Non-threaded (push-on) connections Moteurs diesels — Raccords basse pression pour pompes d’injection de combustible et porte-injecteurs de combustible complets — Partie 2: Raccords non filetés (à pression) Reference number ISO 13948-2:2016(E) I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n © ISO 2016 ISO 13948-2:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved Unless otherwise specified, no part o f 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 o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 13948-2:2016(E) Contents Page Foreword iv Introduction v Scope Normative references Terms and definitions Connection designs and applications 4.1 Type A: nipple connection 4.2 Type B: stand pipe connection 4.3 Type C: “quick connector coupling” connection Dimensions and surface quality 5.1 Type A connection ends 5.1.1 Nipple types 5.1.2 Basic dimensions and tolerances 5.1.3 Radii 5.1.4 Surface quality 5.2 Type B connection end 5.3 Type C connection end Designation 11 Bibliography 12 © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n iii ISO 13948-2:2016(E) Foreword I SO (the I nternational O rganiz ation for Standardiz ation) is a worldwide federation of national s tandards bodies (ISO member bodies) The work o f preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has b een es tablished has the right to b e represented on that committee I nternational 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 o f elec trotechnical s tandardi z ation T he procedures used to develop this cument and those intended for its fur ther maintenance are describ ed in the I SO/I E C D irec tives , Par t I n p ar ticu lar the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial ru les of the I SO/I E C D irec tives , Par t (see www iso org/direc tives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f the document will be in the Introduction and/or on the I SO l is t of p atent declarations received (see www iso org/p atents) Any trade name used in this document is in formation given for the convenience o f users and does not cons titute an endors ement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about I SO ’s adherence to the World Trade O rganization ( WTO) principles in the Technical B arriers to Trade (TB T ) see the following URL: www.iso.org/iso/foreword html T he comm ittee res p ons ible for this cument is Propulsion, powertrain and powertrain fluids T his third edition cancel s and replaces the technically revised with the following changes: I SO/ TC second 22 , edition Road vehicles, (I SO Sub committee 48 -2 : 01 ) , which — a normative reference has b een made to I SO 42 8 for the meas urement of s urface texture A lis t of al l the p ar ts in the I S O 48 s eries can b e found on the I SO web s ite iv I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n SC has 4, b een ISO 948-2 : 01 6(E) Introduction I t i s re co gn i z e d that a la rge varie ty o f low-pre s s ure conne c tion s exi s t on fuel i nj e c tion e qu ipment, using different sealing principles, as well as designs This document attempts to provide the user with a com mon s e t o f pre ferre d typ e s This document is divided into two parts, covering threaded connections (ISO 13948-1) and nonth re ade d ( pu s h- on) ne c tion s (I S O -2 ) for u s e with low-pre s s u re fuel s upply and re turn, b o o s t r pre s s u re and lubricati ng oi l s upply and re tu rn © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n v I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n INTERNATIONAL STANDARD ISO 13948-2:2016(E) Diesel engines — Fuel injection pumps and fuel injector low-pressure connections — Part 2: Non-threaded (push-on) connections Scope This document specifies requirements for the connection ends o f push-on connections used with fuel injection equipment Three types o f push-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 Normative references The following documents are re ferred to in the text in such a way that some or all o f their content constitutes requirements o f this document For dated re ferences, only the edition cited applies For undated re ferences, the latest edition o f the re ferenced document (including any amendments) applies ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and procedures for the assessment o f surface texture Terms and definitions For the purposes o f this document, the terms and definitions given in ISO 7876 (all parts) apply ISO and IEC maintain terminological databases 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 Connection designs and applications 4.1 Type A: nipple connection EXAMPLE See Figure This design is intended for use 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 and Figure 6) or moulded (see Figure 7) © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 948-2 : 01 6(E) Key nipple hose Figure — Type A connection (principle) 4.2 Type B: stand pipe connection EXAMPLE See Figure This design is used in conjunction with proprietary push-on connections (3) attached to the mating hose (2) that seals by compressing ring seals (4) around the outside diameters o f 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) Key stand pipe hose push-on connection ring seals Figure — Type B connection (principle) 4.3 Type C: “quick connector coupling” connection NOTE EXAMPLE As specified in SAE J2044[9] See Figure 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 male 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 I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n and the dimensions are defined in Table and Table ISO 13948-2:2016(E) Key male tube end female connection end stem quick co nnecto r co up ling section of hose or tube Figure — Type C connection (principle) Dimensions and surface quality 5.1 Type A connection ends 5.1.1 Nipple types 5.1.1.1 Nipple, machined, type A.1 Dimensions in millimetres NOTE For the parameters, see Table Figure — Nipple, type A.1 © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 948-2 : 01 6(E) 1 1 Nipple, formed, types A.2 Nipple, bulge type A.2 Dimensions in millimetres NOTE For the parameters, see Table Figure — Nipple, type A 1 2 Nipple, bulge and spool type, A.2 Dimensions in millimetres NOTE For the parameters, see Table Figure — Nipple, type A 1 Nipple, moulded, type A.3 See Figure I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 948-2 : 01 6(E) Dimensions in millimetres a Within this area: — mou lde d j oi nt m i s a l ign ment: , m m ma x ; — mou lde d j oi nt p a r ti ng height: , m m ma x NOTE For the parameters, see Table Figure — Nipple, type A Basic dimensions and tolerances See Table Table — B asic dimensions and tolerances for nipples, types A Dimensions in millimetres Type A.1 (machined) A.2.1 (formed) L1 nom 20 to 24 16 12 — b u l ge typ e A.2.2 (formed) bulge and spool typ e 20 to 24 28 28 © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n L2 D1 D2 D3 3,2 ± 0,5 Ø12,1 ± 0,1 Ø11,3 ± 0,2 Ø13,3 ± 0,1 3,2 ± 0,5 Ø10,1 ± 0,1 Ø9,3 ± 0,2 Ø11,1 ± 0,1 3,2 ± 0,5 Ø8,1 ± 0,1 Ø7,3 ± 0,2 Ø9,1 ± 0,1 2,8 ± 0,5 Ø6,35 ± 0,1 Ø6,2 ± 0,2 Ø7,4 ± 0,1 2,2 ± 0,5 Ø4,0 ± 0,1 Ø3,8 ± 0,2 Ø5 ± 0,1 3,2 ± 0,5 Ø12,1 ± 0,1 Ø11,3 ± 0,2 Ø13,3 ± 0,3 3,2 ± 0,5 Ø10,1 ± 0,1 Ø9,3 ± 0,2 Ø11,1 ± 0,3 3,2 ± 0,5 Ø8,1 ± 0,1 Ø7,3 ± 0,2 Ø9,1 ± 0,3 2,8 ± 0,5 Ø6,35 ± 0,1 Ø6,1 ± 0,2 Ø7,4 ± 0,3 2,2 ± 0,5 Ø4,76 ± 0,1 Ø4,6 ± 0,2 Ø5,6 ± 0,3 3,2 ± 0,5 Ø12,1 ± 0,1 Ø11,3 ± 0,2 Ø13,3 ± 0,3 3,2 ± 0,5 Ø10,1 ± 0,1 Ø9,3 ± 0,2 Ø11,1 ± 0,3 3,2 ± 0,5 Ø8,1 ± 0,1 Ø7,3 ± 0,2 Ø9,1 ± 0,3 2,8 ± 0,5 Ø6,35 ± 0,1 Ø6,1 ± 0,2 Ø7,4 ± 0,3 2,2 ± 0,5 Ø4,76 ± 0,1 Ø4,6 ± 0,2 Ø5,6 ± 0,3 D4 max Ø10 Ø8 Ø6 —a Ø2,6 Ø10,2 Ø8,2 Ø6,2 Ø5 Ø3,5 Ø10,2 Ø8,2 Ø6,2 Ø5 Ø3,5 D5 — — — — — — — — — — Ø13,2 Ø11,2 Ø9 Ø7,1 Ø5,3 ISO 13948-2:2016(E) Table (continued) L1 nom Type 20 to 24 A.3 (moulded) a 16 12 L2 D1 3,2 ± 0,5 3,2 ± 0,5 3,2 ± 0,5 2,8 ± 0,5 2,2 ± 0,5 D2 D3 Ø12,1 ± 0,1 Ø11,3 ± 0,2 Ø13,3 ± 0,1 Ø10,1 ± 0,1 Ø9,3 ± 0,2 Ø11,1 ± 0,1 Ø8,1 ± 0,1 Ø7,3 ± 0,2 Ø9,1 ± 0,1 Ø6,35 ± 0,1 Ø6,2 ± 0,2 Ø7,4 ± 0,1 Ø4,0 ± 0,1 Ø3,8 ± 0,2 Ø5 ± 0,1 D4 max Ø9,2 Ø7,2 Ø5,2 —a Ø2,6 B ore s i z e s p e c i fie d b y m a nu fac tu rer 5.1.3 Radii Dimensions of the nipple radii are given in Table Positions of the nipple radii are shown in Figure a O nly NOTE fo r mo ulded nip p les For the parameters, see Table Figure — Nipple radii Table — Dimensions of radii for nipples, types A Dimensions in millimetres Nipple type Machined Formed Moulded a O nly fo r R1 0,2 0,2 0,2 R2 nom to 1,5 to 1,5 to 1,5 R3 nom 0,5 to 0,5 to — R4 a — — mo u lde d n ip p le s 5.1.4 Surface quality T he outs ide s u r face qua l ity re qu i rements (rough ne s s and i mp er fe c tion s) are given i n I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n Figure D5 — — — — — ISO 13948-2:2016(E) Surface roughness in micrometres, measured according to ISO 4288 a b c Measured lengthwise and crosswise N o lo ngitudinal marks are p ermitted Single imperfections with a depth up to 0,05 mm and a length up to 0,5 mm are permitted Figure — Outside surface quality requirements 5.2 Type B connection end See Figure 10 a b Surface roughness in micrometres, measured according to ISO 4288 I dentificatio n (o p tio nal) B o re s ize s p ecified by manu facturer NOTE NOTE Materials can be different, for example plastics For the parameters, see Table Figure 10 — Stand pipe, type B Table — Dimensions and tolerances for type B Dimensions in millimetres © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n D1 L R Ø8 ± 0,05 28,5 ± 0,5 1, +0 −0 Ø10 ± 0,05 28,5 ± 0,5 1, +0 −0 , , , , ISO 948-2 : 01 6(E) Type C connection end D imensions in millimetres Surface roughness in micro metres, measured according to I SO 42 8 Key d D D D L L L nominal diameter seal diameter collar diameter minimum inner diameter length collar width clearance a M inimum ,3 annular surface perpendicular to tube b C ollar to start of bend: see connector drawings for minimum distance c M eas ure acro s s lay, to o l marks o r weld s eams N o flows to exceed µm NO T E Rz For the p arameters , s ee Table and Table Figure 11 — Male tube end form, type C I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n © ISO 2016 – All rights reserved Table — Dimensions and tolerances for type C (except for polyamide-coated end forms) D inch 3/16 1/4 5/16 3/8 7/16 a 1/2 5/8 3/4 57/64 D1 a nom 4,78 6,35 8 9,5 10 10 12 12,7 16 19 23 25,4 D2 4,63 ± 0,06 6,3 ± 0,06 7,89 ± 0,06 ± 0,08 9,49 ± 0,06 9,89 ± 0,06 10 ± 0,08 11,8 ± 0,08 12,61 ± 0,1 15,82 ± 0,1 18,9 ± 0,1 22,7 ± 0,15 25,5 ± 0,15 D3 7,1 ± 0,15 8,75 ± 0,15 10,98 ± 0,15 11 ± 0,15 12,94 ± 0,15 13,42 ± 0,2 13,5 ± 0,2 16,5 ± 0,25 16,51 ± 0,25 19,18 ± 0,25 22,33 ± 0,25 25,7 ± 0,25 28,2 ± 0,25 Tub e d i a me ter (no m i n a l co up l i n g s i z e) ; no t s ho wn i n D5 2,2 3,6 4,7 6,3 6,6 6,4 7,5 8,1 11,1 13,2 16 19 Figure 11 L1 19,93 ± 0,25 21,25 ± 0,25 21,45 ± 0,25 21 ± 0,25 21,85 ± 0,25 24,95 ± 0,25 24 ± 0,25 26,62 ± 0,25 26,62 ± 0,25 26,62 ± 0,25 26,62 ± 0,25 29,5 ± 0,25 29,5 ± 0,25 L2 1,75 ± 0,15 1,6 ± 0,15 1,6 ± 0,15 1,75 ± 0,15 1,6 ± 0,15 1,75 ± 0,20 1,75 ± 0,20 2,5 ± 0,20 2,5 ± 0,20 2,5 ± 0,20 2,5 ± 0,20 2,5 ± 0,20 2,5 ± 0,20 L3 6 6,5 6 8 8 9,5 9,5 Ra 0,8 0,8 1 1 1 1 1 Rb max 0,3 0,3 0,4 0,35 0,6 0,6 0,6 0,8 0,5 0,5 0,3 0,15 Rc max 0,5 0,5 0,45 0,6 0,45 0,5 0,5 0,6 0,6 0,6 0,6 0,6 0,6 Dimensions in millimetres Rd max 0,25 0,25 0,35 0,35 0,5 0,6 0,6 0,6 0,6 0,5 0,5 0,3 0,2 L4 ± 0,20 ± 0,20 2,1 ± 0,20 2,1 ± 0,20 2,1 ± 0,20 2,1 ± 0,20 2,1 ± 0,20 2,2 ± 0,20 2,2 ± 0,20 2,2 ± 0,20 2,2 ± 0,20 2,2 ± 0,20 2,2 ± 0,20 L5 0,8 0,9 0,9 0,9 1,1 1,1 1,1 1,5 1,5 1,75 1,75 1,75 1,75 ISO 13948-2:2016(E) 10 D a D1 a inch nom D2 D5 D3 L1 L2 L3 Ra Rb min max Rc max Rd max L5 L4 1/4 6,35 6,3 ± 0,06 8,75 ± 0,15 3,6 21,25 ± 0,25 ,0 ± 0,20 0,8 0,3 0,5 0,25 ± 0,20 0,9 5/16 7,89 ± 0,06 10,98 ± 0,15 4,7 21,45 ± 0,25 ,0 ± 0,20 0,4 0,45 0,35 ,1 ± 0,20 0,9 3/8 9,5 9,49 ± 0,06 12 ,94 ± 0,15 6,3 21,85 ± 0,25 ,0 ± 0,20 6,5 0,6 0,45 0,5 ,1 ± 0,20 1,1 7/16 10 9,89 ± 0,06 13,42 ± 0,2 6,6 24,95 ± 0,25 ,0 ± 0,25 0,6 0,5 0,6 ,1 ± 0,20 1,1 Tub e d i a me ter (no m i n a l co up l i n g s i z e) ; no t s ho wn i n Figure 11 ISO 13948-2:2016(E) I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n Table — Dimensions and tolerances for type C (polyamide-coated end forms) ISO 13948-2:2016(E) Designation Low-pressure connections in accordance with this document shall be designated by the following elements: a) a re ference to this document, i.e ISO 13948-2:2012; b) the type o f connection in accordance with Figure 11 ; Figure 4, Figure 5, Figure 6, Figure 7, Figure 10 or c) the diameter, D1 , o f the type o f connection in accordance with Table 1, Table 3, Table or Table EXAMPLE A low-pressure fuel connection o f type A.2.1 (nipple, formed) with a diameter D1 designated as follows: = 10,1 mm is ISO 13948-2 - A.2.1 10,1 EXAMPLE A low-pressure fuel connection o f type B with a diameter D1 = mm is designated as follows: ISO 13948-2 - B - EXAMPLE A low-pressure fuel connection o f type C with a diameter D1 = 12,7 mm is designated as follows: ISO 13948-2 - C - 12,7 © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n 11 ISO 948-2 : 01 6(E) Bibliography [1] I S O 74, [2 ] I S O 73 10 , [3 ] [4] [5 ] Diesel engines — 60° female cones for high-pressure fuel injection components Diesel engines — Heads for spin-on fuel filters with horizontal flange — Mounting and connecting dimensions I S O 311 , Diesel engines — Heads for fuel filters with vertical flange — Mounting and connecting dimensions 1) Road vehicles — Two-stage fuel filters for compression-ignition engines — Mounting and connecting dimensions I SO 7576 , I S O 765 4, dimensions [6] [7 ] Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting I S O 7876 (al l p ar ts) , Fuel injection equipment — Vocabulary I S O , Diesel engines — High-pressure fuel injection pipe assemblies for integral 60° female cones — General requirements and dimensions Diesel engines — Fuel injection pumps and fuel injector low-pressure connections — Part 1: Threaded connections [8] I S O 48 -1 , [9] SAE J2044, Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems 1) 12 Withdrawn I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n ISO 948-2 : 01 6(E) ICS 43.060.40 Price based on 12 pages © ISO 2016 – All rights reserved I n tern ati o n al Org an i z ati o n fo r S tan d ard i z ati o n