Bsi bs en 14420 8 2013 + a1 2016

BS EN 14420-8:2013+A1:2016 BS EN 14420-8:2013 BSI Standards Publication Hose fittings with clamp units Part 8: Symmetrical half coupling (Guillemin system) BS EN 14420-8:2013+A1:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 14420-8:2013+A1:2016 It supersedes BS EN 14420-8:2013 which is withdrawn The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by  The UK participation in its preparation was entrusted to Technical Committee PRI/66, Rubber and plastics tubing, hoses and hose assemblies A list of organizations represented on this committee can be obtained on request to its secretary 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 2016 ISBN 978 580 88069 ICS 23.040.70 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2013 Amendments/corrigenda issued since publication Date Text affected 29 February 2016 Implementation of CEN amendment A1:2016 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 23.040.70 EN 14420-8:2013+A1 February 2016 Supersedes EN 14420-8:2013 English Version Hose fittings with clamp units - Part 8: Symmetrical half coupling (Guillemin system) Raccords pour flexibles avec demi-coquille - Partie 8: Demi raccords symétriques (système Guillemin) Schlaucharmaturen mit Klemmfassungen - Teil 8: Symmetrische Kupplungen (System Guillemin) This European Standard was approved by CEN on 15 May 2013 and includes Amendment approved by CEN on December 2015 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 14420-8:2013+A1:2016 E BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Contents Page European foreword Scope Normative references Terms and definitions 4.1 4.2 Requirements Pressures Temperatures 5 Components Dimensions Types of connections 8 Designation 10 9.1 9.2 9.3 9.4 Materials 10 General 10 Coupling components 10 Main gaskets: 11 Thread gaskets: 11 10 Marking 11 11 Type testing and quality control 12 Annex A (normative) Gauge for symmetrical half couplings (Guillemin system) 13 A.1 General 13 A.2 Dimensions, designation 13 A.2.1 General 13 A.2.2 Gauge A 13 A.2.3 Gauge B 15 A.3 Material 16 Bibliography 17 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) European foreword This document (EN 14420-8:2013+A1:2016) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”, 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 August 2016, and conflicting national standards shall be withdrawn at the latest by August 2016 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document includes Amendment approved by CEN on 2015-12-07 This document supersedes !EN 14420-8:2013" The start and finish of text introduced or altered by amendment is indicated in the text by tags !" !deleted text" EN 14420, Hose fittings with clamp units consists of the following parts: — Part 1: Requirements, types of fixing and connection, designation and testing — Part 2: Hose side parts of hose tail — Part 3: Clamp units, bolted or pinned — Part 4: Flange connections — Part 5: Threaded connections — Part 6: TW tank truck couplings — Part 7: Cam locking couplings — Part 8: Symmetrical half coupling (Guillemin system) 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Scope This European Standard specifies dimensions, types of connections, quality of materials, marking requirements and testing requirements for hose fittings with symmetrical half couplings (Guillemin system), with mobile locking ring, for hose assemblies with a maximum working pressure of up to 10 bar 1) with hose tails according to EN 14420-2 and clamp units according to EN 14420-3 Couplings in accordance with this document serve as link between hoses and connections to transport liquids, solids (e.g powders, granules) except steam and liquid gas The working temperature range is –20 °C up to +65 °C Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products — Part 3: Chemical composition and form of products EN 1706, Aluminium and aluminium alloys — Castings — Chemical composition and mechanical properties EN 1982, Copper and copper alloys — Ingots and castings EN 10083-2, Steels for quenching and tempering — Part 2: Technical delivery conditions for non alloy steels EN 10088-1, Stainless steels — Part 1: List of stainless steels EN 10213 Steel castings for pressure purposes EN 14420-1:2013, Hose fittings with clamp units — Part 1: Requirements, types of fixing and connection, designation and testing EN 14420-2, Hose fittings with clamp units —Part 2: Hose side parts of hose tail EN 14420-3, Hose fittings with clamp units — Part 3: Clamp units, bolted or pinned EN 14420-4, Hose fittings with clamp units — Part 4: Flange connections EN 14420-5, Hose fittings with clamp units — Part 5: Threaded connections EN 22768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1) EN 22768-2, General tolerances — Part 2: Geometrical tolerances for features without individual tolerance indications (ISO 2768-2) EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1) 1) bar = 0,1 MPa BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies — Vocabulary (ISO 8330:2007) Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330:2008 and the following apply 3.1 DN (nominal size) alphanumeric designation of size for components of a pipework system, which is used for reference purposes It comprises the letters DN followed by a dimensionless whole number which is indirectly related to the physical size, in millimetres, of the bore or outside diameter of the end connections Note to entry: The number following the letters DN does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard Note to entry: In those standards which use the DN designation system, any relationship between DN and component dimensions should be given, e.g DN/OD or DN/ID [SOURCE: EN ISO 6708:1995, 2.1] 3.2 main gasket interface gasket between the male and female part of a coupling 3.3 thread gasket flat faced gasket for threads according to EN ISO 228-1 Requirements 4.1 Pressures Symmetrical half-couplings (Guillemin system), with mobile locking-ring, shall resist to the following pressures: a) Maximum working pressure = 16 bar !(see also EN 14420-1:2013, 4.3)"; b) Test pressure c) Minimum burst pressure NOTE bar = 0,1 MPa = 24 bar; = 48 bar 4.2 Temperatures The range of working temperatures of couplings equipped with nitrile butadiene rubber gasket (NBRgasket) is –20 °C to +65 °C Components Figure shows a coupling with hose tail (Type SGD) and a plug (Type SGB) as samples BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) ! Key a hose tail c chain b d e f locking ring gasket retainer ring body of plug Figure — Coupling with hose tail (Type SGD) and plug (Type SGB)" Dimensions General dimensions are given in Figure and Table Details which are not fixed shall be chosen by the manufacturer For gauges see Annex A BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Key a helix right pitch P c according to EN 14420-4 b *) NOTE medial plan K is measured in the plan b—b For H and G see Table Figure — General dimensions BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Table — General dimensions Nominal size DN A 20 19 32 27,5 25 40 50 65 80 100 23 38 48 62 78 97 C +1 +0 +2 +0 + 2,5 +0 +2 +0 +2 +0 +3 +0 +2 +0 +3 +0 D E F G H max K Dimensions in millimetres L O P R 32 31 38 36,5 14,5 14,5 10 ± 0,1 8,7 ± 0,1 23 2,5 42,5 41,5 50 48 15 15 11 ± 0,1 9,7 ± 0,1 32 3,5 37,5 55 69 84 103 123 36,5 54 68 83 101 121 Types of connections 44 63 78 94 114,5 136 42,5 61 76 92 111,5 133 15 19,5 24,5 24 28 30 15 10 ± 0,1 8,7 ± 0,1 19,5 14,5 ± 0,1 13,4 ± 0,1 24 17 ± 0,15 16 ± 0,15 24,5 28 30 18,5 ± 0,1 20 ± 0,15 21 ± 0,15 17,4 ± 0,1 19 ± 0,15 20 ± 0,15 27,25 43 54 69 85 103,5 8 10 10 10 4 5 Types of connections are shown in Table Dimensions for the main gasket and the retainer ring are given in Table BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Table — Types of connections Figure Type SGD SGM SGF SGS SGB Kind of connection Hose tail according to EN 14420-2 Hose tail to be connected with clamps units according to EN 14420-3 Other dimensions see Clause External thread according to EN 14420-5 Other dimensions see Clause Internal thread according to EN 14420-5 Flat-faced with thread gasket Other dimensions see Clause Welding connections To be agreed between purchaser and manufacturer Other dimensions see Clause Plug with chain and "S" hook length 300 mm (min.), capable of supporting at least 10 times the weight of the plug Other dimensions see Clause Dimensions in millimetres Nominal size DN 20 25 32 40 50 65 80 100 20 25 32 40 50 65 80 100 20 25 32 40 50 65 80 100 20 25 32 40 50 65 80 100 20 25 32 40 50 65 80 100 Thread according to EN ISO 228-1 — GắB G1B G1ẳB G1ẵB G2B G2ẵB G3B G4B Gắ G1 G1ẳ G1ẵ G2 G2ẵ G3 G4 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Table — Dimensions for main gasket and retainer ring Main gasket Other specifications see Clause Designation DN ∅O M N 20 25 32 40 50 65 80 100 23 27,25 32 43 54 69 85 103,5 3,5 4,5 5 6 2,5 3,5 5 5,5 Retainer ring Other specifications see Clause DN 20 25 32 40 50 65 80 100 ∅D ∅d min 22 30 31 44 56 71 85 108 20/10° 20/10° 20/10° 20/10° 20/10° 25/10° 30/10° 30/10° Examples of ordering designations: EXAMPLE Half-coupling with hose tail and collar, nominal size DN 80 made of stainless steel (1.4404): EXAMPLE Half-coupling with internal thread nominal size DN 50 made of aluminium alloy (EN AC-42100): Half coupling EN 14420-8 — SGD — 80 — 1.4404 Half coupling EN 14420-8 — SGF — 50 — FFG2 — EN AC-42100 Materials 9.1 General Whatever the kind of manufacturing procedure is, the minimum mechanical characteristics shall be equivalent to the mechanical characteristics of investment casting (in case of stainless steel) using the materials specified in this document 9.2 Coupling components The quality of the materials constituting the symmetrical half-couplings (Guillemin system) with mobile locking ring, gaskets, retainer rings and chains, shall conform to the chemical, mechanical and physical characteristics to provide the service conditions defined in Clause The most commonly used materials are: a) Bronze CuSn5Zn5Pb5 material number CC491K according to EN 1982 EN AC Si7Mg0,3 material number EN AC-42100 according to EN 1706 b) Cast aluminium alloys EN AC SiMg0,6 material number EN AC-42200 according to EN 1706 According to the regulations of the manufacturers, these cast aluminium alloys shall undergo a heat treatment c) Wrought aluminium alloys 10 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) EN AW-Al Si1MgMn d) Stainless steel X2CrNiMo 17-12-2 X5CrNiMo 17-12-2 GX5CrNiMo19-11-2 9.3 Main gaskets: material number EN AW-6082 according to EN 573-3 material number 1.4404 according to EN 10088-1 material number 1.4401 according to EN 10088-1 material number 1.4408 according to EN 10213 Materials shall be selected to be resistant to the fluid/product/liquid being conveyed The materials shall be preferably selected from the following: a) Nitrile butadiene Rubber (NBR); b) Fluoro rubber (FPM); c) Polytetrafluorethylene (PTFE) Main gaskets shall be made from non-asbestos materials 9.4 Thread gaskets: Materials shall be selected to be resistant to the fluid/product/liquid being conveyed The materials shall be preferably selected from the following: a) Polyurethane (PUR); b) Polytetrafluoroethylene (PTFE); c) Nitrile butadiene rubber (NBR); d) Fluor rubber (FPM); e) Ethylene propylene diene monomer (EPDM) Thread gaskets shall be made from non-asbestos materials 10 Marking If appropriate surface area is available, the body of each half-coupling shall be clearly and durably marked on the outside with the following information: a) EN 14420-8; b) manufacturer's name or trademark; c) type and nominal size; d) material number (at least for stainless steels) 11 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) 11 Type testing and quality control Type testing and quality control shall be done according to EN 14420-1:2013, Clause 12 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Annex A (normative) Gauge for symmetrical half couplings (Guillemin system) A.1 General The gauge in accordance to this document shall be used for checking: a) the dimension between the bottom of the main gaskets groove and the median axis of the helicoidal ramps of jaws as well as the inside diameters of the jaws; b) the dimension between the bottom of the main gaskets groove and the median axis of the helicoidal ramps of mobile locking ring as well as the outside diameter of the coupling A.2 Dimensions, designation A.2.1 General An example for a gauge A is shown in Figure A.1, for a gauge B in Figure A.2 Only the dimensions given in Table A.1 and Table A.2 shall be complied with Details not specified in this document shall be chosen as appropriate Tolerances shall be according to EN 22768-1 and EN 22768-2 A.2.2 Gauge A For checking the dimension between bottom of the main gaskets groove and the median axis of the helicoidal ramps of jaws as well as the inside diameters of the jaws Designation of a gauge A for a Guillemin coupling size DN 50: Gauge EN 14420-8 — A — 50 13 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Key a helix pitch P c maximal moving range of coupling b d 14 X in centre of ramp minimal moving range of coupling Figure A.1 — Gauge A BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Table A.1 — Dimensions for gauge A Nominal size X Y A B C D P DN mm ° mm mm mm mm mm 25 13 43,5 37,5 33,95 27,55 55 50,7 43,4 20 32 40 50 65 80 A.2.3 Gauge B 100 12,5 12 14,5 12 18,5 22,5 12 9 22 10,8 27 10,8 25 10,8 37,5 49,5 62,5 77,5 93 113,5 135 32 42,5 69 84 103 123 27,7 37,7 63,7 78,5 95,5 117 23,3 32,3 54,3 69,5 85,5 104 6 8 10 10 10 For checking the dimension between the bottom of the seal's groove and the median axis of the helicoidal ramps of mobile locking ring as well as the outside diameter of the coupling Key a helix pitch P c maximal moving range of coupling b d X in centre of ramp minimal moving range of coupling Figure A.2 — Gauge B 15 BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Table A.2 — Dimensions for gauge B Nominal size X Y C D E F P DN mm ° mm mm mm mm mm 12 33,95 27,55 37,2 50,7 43,3 20 25 32 40 12 6,2 12 5,5 9,4 50 13,4 80 14 65 A.3 Material 6,2 100 11 10,8 14 10,8 10,8 27,7 37,7 63,7 78,5 95,5 117 23,3 32,3 54,3 69,5 85,8 104 38 31,7 50 42,2 44 63 78 94 114,5 136 54,7 68,7 6 8 83,5 10 122,5 10 102,5 10 The gauge body shall be made of material with material number 1.0601 (Symbol C 60), or equivalent in mechanical resistance according to EN 10083-2 It shall be heat-treated and surface protected NOTE 16 The material of the bolt is at the discretion of the manufacturer BS EN 14420-8:2013+A1:2016 EN 14420-8:2013+A1:2016 (E) Bibliography [1] [2] EN ISO 6708:1995, Pipework components — Definition and selection of DN (nominal size) (ISO 6708:1995) EN ISO 4957, Tool steels (ISO 4957) 17 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based 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