1、September 2013 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).
2、ICS 23.040.70!%(u(“2058205www.din.deDDIN EN 14420-4Hose fittings with clamp units Part 4: Flange connections;English version EN 14420-4:2013,English translation of DIN EN 14420-4:2013-09Schlaucharmaturen mit Klemmfassungen Teil 4: Flanschanschlsse;Englische Fassung EN 14420-4:2013,Englische bersetzu
3、ng von DIN EN 14420-4:2013-09Raccords pour flexibles avec demi-coquille Partie 4: Raccordements bride,Version allemande EN 14420-4:2013;Version anglaise EN 14420-4:2013,Traduction anglaise de DIN EN 14420-4:2013-09SupersedesDIN EN 14420-4:2007-04www.beuth.deIn case of doubt, the German-language orig
4、inal shall be considered authoritative.Document comprises 17 pages 08.13 DIN EN 14420-4:2013-09 2 A comma is used as the decimal marker. National foreword This document (EN 14420-4:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” (Secretariat:
5、 BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Rohrleitungen und Dampfkesselanlagen (Piping and Boiler Plant Standards Committee), Working Committee NA 082-00-02 AA Schlauchkupplungen. Amendments This standard differs from DIN EN 14420-4:2007-0
6、4 as follows: a) Clause 1 “Scope” has been revised; b) Clause 2 “Normative references” has been updated; c) Clause 3 “Terms and definitions” has been added; d) in Subclause 5.5, the list of referenced standards has been updated; e) in Subclause 7.1, the list of materials for hose tails has been supp
7、lemented by non-alloyed steel (C22), aluminium and copper-zinc-alloys; f) in Clause 8 “Marking”, the requirements for marking have been revised; g) the Bibliography has been revised; h) the standard has been editorially revised. Previous editions DIN 2817-6: 1995-05 DIN EN 14420-4: 2005-05, 2007-04
8、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14420-4 July 2013 ICS 23.040.70 Supersedes EN 14420-4:2004+A1:2007English Version Hose fittings with clamp units - Part 4: Flange connections Raccords pour flexibles avec demi-coquille - Partie 4: Raccordements bride Schlaucharmaturen mit Klemmfas
9、sungen - Teil 4: Flanschanschlsse This European Standard was approved by CEN on 15 May 2013. 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
10、 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 u
11、nder 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, Forme
12、r 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 COMIT E
13、UROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-4:2013: EEN 14420-4:2013 (E) 2 Contents Page Foreword 3 1 Scope
14、5 2 Normative references 5 3 Terms and definitions .6 4 Hose fittings with flanges .7 5 Dimensions, designations 8 5.1 General 8 5.2 Hose tail with weld neck collar and loose flange .8 5.3 Hose tail with fixed flange .9 5.4 Hose tail . 11 5.5 Weld joints . 12 6 Surface finish 12 7 Materials 12 7.1 H
15、ose tail . 12 7.2 Weld neck collar and fixed flanges . 13 7.3 Loose flanges 13 8 Marking 14 9 Type testing and quality control . 14 Bibliography . 15 DIN EN 14420-4:2013-09 EN 14420-4:2013 (E) 3 Foreword This document (EN 14420-4:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and
16、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 January 2014, and conflicting national standards shall be withdrawn at
17、 the latest by January 2014. 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 supersedes EN 14420-4:2004+A1:2007. In comp
18、arison to EN 14420-4:2004+A1:2007, the following changes have been made: The scope has been revised. In Clause 2, the normative references have been updated. A new Clause 3 “Terms and definitions” has been added. In 5.5, the list of referenced standards has been updated. In 7.1, the list of material
19、s for hose tails has been supplemented by non-alloyed steel (C22), aluminium and copper-zinc-alloys. In Clause 8, the requirements on marking have been reviewed. The Bibliography has been reviewed. The standard has been revised editorially. EN 14420, Hose fittings with clamp units consists of the fo
20、llowing 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: Symmet
21、rical 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 Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugo
22、slav Republic of Macedonia, France, Germany, Greece, DIN EN 14420-4:2013-09 EN 14420-4:2013 (E) 4 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN
23、 EN 14420-4:2013-09 EN 14420-4:2013 (E) 5 1 Scope This European Standard specifies requirements for hose tails according to EN 14420-2, with flanges of mating dimensions PN 10/PN 16/PN 25/PN 40 (according to nominal size and pressure stage) according to EN 1092-1, on hose fittings with clamp units a
24、ccording to EN 14420-3. Maximum working pressure is 25 bar1); maximum working temperature is 65 C. Additionally, flanges are also usable according to EN 14422. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for i
25、ts 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
26、form of products EN 1092-1, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 1: Steel flanges EN 1435, Non-destructive examination of welds Radiographic examination of welded joints EN 1706, Aluminium and aluminium alloys Castings Chemical com
27、position and mechanical properties EN 10025-2, Hot rolled products of structural steels Part 2: Technical delivery conditions for non-alloy structural steels EN 10083-2, Steels for quenching and tempering Part 2: Technical delivery conditions for non alloy steels EN 10087, Free-cutting steels Techni
28、cal delivery conditions for semi-finished products, hot-rolled bars and rods EN 10088-1, Stainless steels Part 1: List of stainless steels EN 10216-1, Seamless steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specified room temperature properties EN
29、10217-1, Welded steel tubes for pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specified room temperature properties EN 10283, Corrosion resistant steel castings EN 12163, Copper and copper alloys Rod for general purposes EN 14420-1:2013, Hose fittings with clamp
30、units Part 1: Requirements, types of fixing and connection, des-ignation and testing EN 14420-2, Hose fittings with clamp units Part 2: Hose side parts of hose tail 1)1 bar = 0,1 MPa. DIN EN 14420-4:2013-09 EN 14420-4:2013 (E) 6 EN 14420-3, Hose fittings with clamp units Part 3: Clamp units, bolted
31、or pinned 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 4042, Fasteners
32、Electroplated coatings (ISO 4042) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies Vocabulary (ISO 8330:2007) EN ISO 11666, Non-destructive testing of welds Ultrasonic testing Acceptance levels (ISO 11666) EN ISO 15614-1, Specification and qualification of welding procedures for metal
33、lic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1) EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials Welding procedure test - Part 2: Arc welding of aluminium and its alloys (
34、ISO 15614-2) EN ISO 17636-1, Non-destructive testing of welds Radiographic testing Part 1: X- and gamma-ray techniques with film (ISO 17636-1) EN ISO 17636-2, Non-destructive testing of welds Radiographic testing Part 2: X- and gamma-ray techniques with digital detectors (ISO 17636-2) EN ISO 17638,
35、Non-destructive testing of welds Magnetic particle testing (ISO 17638) EN ISO 17640, Non-destructive testing of welds Ultrasonic testing Techniques, testing levels, and assessment (ISO 17640) EN ISO 23277, Non-destructive testing of welds Penetrant testing of welds Acceptance levels (ISO 23277) EN I
36、SO 23278, Non-destructive testing of welds Magnetic particle testing of welds Acceptance levels (ISO 23278) EN ISO 23279, Non-destructive testing of welds Ultrasonic testing Characterization of indications in welds (ISO 23279) 3 Terms and definitions For the purposes of this document, the terms and
37、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 phy
38、sical size, in 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. DIN EN 14420-4:2013-09 EN 144
39、20-4:2013 (E) 7 Note 2 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 PN alphanumeric designation used for reference purposes related to a combination of me
40、chanical and dimensional characteristics of a component of a hose fitting Note 1 to entry: It comprises the letters PN followed by a dimensionless number. Note 2 to entry: The number following the letters PN does not represent a measurable value and should not be used for calculation purposes except
41、 where specified in the relevant standard. 4 Hose fittings with flanges Integral or welded flanges DN 15 to DN 200 according to EN 1092-1 shall be used (see Figure 1 and Figure 2). A parts list for hose fittings with flanges is given in Table 1. End-to-end dimensions and weights are given in Table 2
42、. Form FL Form FV Figure 1 Example of loose flange Figure 2 Example of fixed flange Table 1 Parts list Item No. Designation Remark 1 Hose tail with fixed collar According to 5.2 2 Loose flange According to EN 10921a3 Hose tail with fixed flange According to 5.3 4 Clamp unit According to EN 144203 aD
43、uring assembly, measures should be taken. DIN EN 14420-4:2013-09 EN 14420-4:2013 (E) 8 For designation of a complete hose fitting, see EN 14420-1. Table 2 End-to-end dimensions and weights Nominal size Hose fitting with loose flange and weld neck collar Hose fitting with fixed flange End-to-end dime
44、nsion Weight (mass) End-to-end dimension Weight (mass) L L DN mm kgamm kgamin. min. 15 93 0,9 92 0,8 20 94 1,1 92 1,1 25 94 1,6 92 1,4 32 96 2,2 96 2 40 101 2,7 103 2,2 50 113 3,5 113 3,1 65 131 4,3 131 3,9 80 139 5,6 139 4,7 100 155 7,1 157 6,5 150 246 15,5 251 15 200 311 25 318 24,4 aThe weights o
45、f the complete hose fitting apply for clamp units in aluminium. 5 Dimensions, designations 5.1 General The general tolerances for the dimensions of machined parts shall be in accordance with EN 22768-mK. Unless otherwise specified tolerances on flanges shall be in accordance with EN 1092-1. NOTE The
46、 hose tail consists of a weld neck collar or a fixed flange with weld-on tail according to 5.4. Hose tails according to 5.2 and 5.3 may be fabricated from a single part (without welding). Hereafter, the dimension l1may be reduced by the dimension l3according to Figure 5 and Table 5. Dimensions of th
47、e loose or fixed flange shall be as given in EN 1092-1 but the bore transition from tail inside diameter to inside diameter of the loose or fixed flange shall be bevelled. 5.2 Hose tail with weld neck collar and loose flange Figure 3 shows a hose tail with weld neck collar and loose flange. The leng
48、th of the hose tail according to nominal size (DN) is given in Table 3. DIN EN 14420-4:2013-09 EN 14420-4:2013 (E) 9 Types are: a) SC-FL (with loose flange); b) SC-FLB (without loose flange). Key 1 weld-neck collar according to EN 1092-1 2 loose flange according to EN 1092-12)3 hose side part according to 5.4 aexample for possible welding connection (see 5.5) Figure 3 Hose tail with weld neck collar and loose flange Examp
