1、BSI Standards PublicationBS EN 14420-2:2013Hose fittings with clamp unitsPart 2: Hose side parts of hose tailBS EN 14420-2:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14420-2:2013.It supersedes BS EN 14420-2:2004 which is withdrawn.The UK participation
2、in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hoseassemblies.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract.
3、 Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 72878 5ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority
4、of theStandards Policy and Strategy Committee on 31 July 2013.Amendments issued since publicationDate Text affectedBS EN 14420-2:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14420-2 July 2013 ICS 23.040.70 Supersedes EN 14420-2:2004English Version Hose fittings with clamp units - Part 2:
5、 Hose side parts of hose tail Raccords pour flexibles avec demi-coquille - Partie 2: Douilles pour flexibles Schlaucharmaturen mit Klemmfassungen - Teil 2: Schlauchseitige Stutzenteile This European Standard was approved by CEN on 15 May 2013. CEN members are bound to comply with the CEN/CENELEC Int
6、ernal 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 an
7、y 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 v
8、ersions. 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, Norwa
9、y, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in an
10、y form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-2:2013: EBS EN 14420-2:2013EN 14420-2:2013 (E) 2 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Dimensions .6 5 Materials .9 6 Marking 10 7 Type testing and quality contro
11、l . 10 Bibliography . 11 BS EN 14420-2:2013EN 14420-2:2013 (E) 3 Foreword This document (EN 14420-2:2013) 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
12、a national standard, either by publication of an identical text or by endorsement, at the latest by January 2014, and conflicting national standards shall be withdrawn at the latest by January 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject o
13、f patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14420-2:2004. In comparison to EN 14420-2:2004, the following changes have been made: In Clause 2 the normative references have been updated. A new Clause 3 “T
14、erms and definitions“ has been added. Subclause 3.2 “Surface finish“ has been deleted. In Clause 5, the list of materials appropriate for use in hose fittings has been supplemented by aluminium and hastelloy. Clause 7 on type testing and quality control has been added. The Bibliography has been revi
15、ewed. The standard has been revised editorially. 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 connectio
16、ns 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 organisations of the following countries are bound to implement this European S
17、tandard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, BS EN 14420-2:2013EN 14420-2:2013 (E) 4 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland
18、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14420-2:2013EN 14420-2:2013 (E) 5 1 Scope This European Standard specifies requirements for the hose tail of hose fittings according to EN 14420-1 for use with clamp units according to EN 14420-
19、3. Furthermore, it specifies materials for hose fittings with clamp units according to EN 14420-4 to EN 14420-8. Maximum working pressure is 25 bar1); maximum working temperature is 65 C. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document
20、 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 755-2, Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 2: Mechanical
21、properties EN 1706, Aluminium and aluminium alloys Castings Chemical composition and mechanical properties EN 1982, Copper and copper alloys Ingots and castings EN 10025-2, Hot rolled products of structural steels Part 2: Technical delivery conditions for non-alloy structural steels EN 10087, Free-c
22、utting steels Technical delivery conditions for semi-finished products, hot-rolled bars and rods EN 10088-1, Stainless steels Part 1: List of stainless steels EN 10213, Steel castings for pressure purposes EN 10217-1, Welded steel tubes for pressure purposes Technical delivery conditions Part 1: Non
23、-alloy steel tubes with specified room temperature properties EN 10283, Corrosion resistant steel castings EN 12420, Copper and copper alloys Forgings EN 14420-1:2013, Hose fittings with clamp units Part 1: Requirements, types of fixing and connection, designation and testing EN 14420-4, Hose fittin
24、gs with clamp units Part 4: Flange connections EN 14420-5, Hose fittings with clamp units Part 5: Threaded connections EN 14420-6, Hose fittings with clamp units Part 6: TW tank truck couplings EN 14420-7, Hose fittings with clamp units Part 7: Cam locking couplings EN 14420-8, Hose fittings with cl
25、amp units Part 8: Symmetrical half coupling (Guillemin system) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies Vocabulary (ISO 8330:2007) 1) 1 bar = 0,1 MPa. BS EN 14420-2:2013EN 14420-2:2013 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions g
26、iven 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, i
27、n millimetres, of the bore or outside diameter of the end connections Note 1 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 2 to entry: In those standards which
28、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 4 Dimensions Types of fittings shall be chosen by the manufacturer depending on the manufacturing process. NOTE Details not specified in this docume
29、nt are at the discretion of the manufacturer. Grooves are admissible on the outside surface of tails Type A, Type B or Type C, provided that their outside diameter is not less than d4(see Type B). Serration is admissible on the outside surface of tails of Type A and Type B of nominal size DN 15 to D
30、N 80, whose outside diameter shall not exceed d5(see Type B). For nominal sizes DN 100 to DN 200 serrations are admissible with outside diameter not more than 2,2 mm above d6. Grooves and ribs should be manufactured without sharp edges. BS EN 14420-2:2013EN 14420-2:2013 (E) 7 Type A DN 15 to DN 200
31、Type B2)DN 15 to DN 80 Type C DN 100 to DN 150 Inner contour cylindrical or conical at the discretion of the manufacturer. Other dimensions and specifications as type A Figure 1 Hose side parts of hose tail 2) Type B not applicable to clamp unit S according to EN 14420-3. BS EN 14420-2:2013EN 14420-
32、2:2013 (E) 8 Table 1 Dimensions for hose side parts of tail Dimensions in millimetres Nominal size Type Inside diameter of hose d1d2d3d4d5d6d7d8f k l1l2r DN Tolerances 5,00+max. Tolerances Tolerances 04,0Tolerances Tolerances 5,00+05,0min. 5,0 0,5 15 A 13 9 01 12,2 min. 13,4 19 0113 0,1 4 4 42 1,5 2
33、0 19 15 18,4 19,4 26 19 25 25 21 24a26,6amax. 25,4 32 25 32 32 28 31a33,6a32,4 39 32 40 B 38 33,5 37,8 0,5 40 08,038,4 45 38 4,5 50 50 45,5 49,5 52 50,4 58 50 4,5 49 51 50,5 53 51,4 65 63 58,5 5,05,1+62,5 65,5 63,4 73 63 5,5 5,5 63 80 75 70,5 74,5 77,4 75,4 85 75 67 76 75,5 78,4 76,4 100 C 100 94 90
34、 94 100,3 110 100 0,2 8 7,5 96 95 101,5 101,8 150 150 140 5,02+131 140 150,1 164 150 13 10 166 144 3 200 200 190 5,05,2+ 200 219 02+200 17 12 230 aAt DN 25 and DN 32 dimensions d4and d5are given as limiting dimensions for grooves and ribs for tails type A. BS EN 14420-2:2013EN 14420-2:2013 (E) 9 5 M
35、aterials Only materials listed below shall be used each in connection with the individual fittings according to EN 14420-4, EN 14420-5, EN 14420-6, EN 14420-7 and EN 14420-8 which are indicated there: a) Non-alloyed steels S235JRG2 material number 1.0038 according to EN 10025-2 S355J0 (former St52-3
36、U) material number 1.0553 according to EN 10025-2 S355J2G3 (former St52-3N) material number 1.0570 according to EN 10025-2 P235TR1 material number 1.0254 according to EN 10217-1 11 SMnPb 30 material number 1.0718 according to EN 10087 b) Stainless steels X5CrNi18-10 material number 1.4301 according
37、to EN 10088-1 X5CrNiMo17-12-2 material number 1.4401 according to EN 10088-1 X2CrNiMo17-12-2 material number 1.4404 according to EN 10088-1 X6CrNiTi18-10 material number 1.4541 according to EN 10088-1 X6CrNiMoTi17-12-2 material number 1.4571 according to EN 10088-1 GX5CrNiMo19-11-2 material number 1
38、.4408 according to EN 10213 GX5CrNiMoNb19-11-12 material number 1.4581 according to EN 10213 GX5CrNiMo19-11-2 material number 1.4408 according to EN 10283 c) Copper-zinc alloys CuZn39Pb3 material number CW614N according to EN 12420 CuZn40Pb2 material number CW617N according to EN 12420 GK-CuZn37Pb m
39、aterial number CC754S according to EN 1982 d) Copper-tin alloy CuSn5Zn5Pb5-C material number CC491K according to EN 1982 e) Aluminium Alu forged material number EN AW-6082 according to EN 755-2 Alu bar materials material number EN AW-6060 according to EN 755-2 Alu cast material number EN AC-47000 ac
40、cording to EN 1706 f) Hastelloy Hastelloy B3 material number 2.4600 Hastelloy C22 material number 2.4602 Hastelloy C4 material number 2.4610 Hastelloy C2 material number 2.4819 BS EN 14420-2:2013EN 14420-2:2013 (E) 10 6 Marking If appropriate surface area is available, the hose side parts of the hos
41、e tail shall be clearly and durably marked with the following information: a) EN 14420-2; b) manufacturers name or trademark; c) type and nominal size; d) material number. 7 Type testing and quality control Type testing and quality control shall be done according to EN 14420-1:2013, Clause 7. BS EN
42、14420-2:2013EN 14420-2:2013 (E) 11 Bibliography 1 EN 14420-3, Hose fittings with clamp units Part 3: Clamp units, bolted or pinned 2 EN ISO 6708:1995, Pipework components Definition and selection of DN (nominal size) (ISO 6708:1995) This page deliberately left blankThis page deliberately left blankB
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