1、BSI Standards PublicationBS EN 14420-4:2013Hose fittings with clamp unitsPart 4: Flange connectionsBS EN 14420-4:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14420-4:2013.It supersedes BS EN 14420-4:2004 which is withdrawn.The UK participation in its pre
2、paration 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. Users are
3、 responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 72876 1ICS 23.040.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStan
4、dards Policy and Strategy Committee on 31 July 2013.Amendments issued since publicationDate Text affectedBS EN 14420-4:2013EUROPEAN 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: F
5、lange connections Raccords pour flexibles avec demi-coquille - Partie 4: Raccordements bride Schlaucharmaturen mit Klemmfassungen - 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 stip
6、ulate 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
7、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
8、 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
9、, 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 any form and by any means rese
10、rved worldwide for CEN national Members. Ref. No. EN 14420-4:2013: EBS EN 14420-4:2013EN 14420-4:2013 (E) 2 Contents Page Foreword 3 1 Scope 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 c
11、ollar 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 Hose 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 BS EN 144
12、20-4:2013EN 14420-4:2013 (E) 3 Foreword This document (EN 14420-4:2013) 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 a national standard, either by pub
13、lication 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 of patent rights. CEN and/or CENELE
14、C shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14420-4:2004+A1:2007. In comparison 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
15、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 materials 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. Th
16、e Bibliography has been reviewed. 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 pin
17、ned 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 organisations of the following countries are bound
18、to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, BS EN 14420-4:2013EN 14420-4:2013 (E) 4 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
19、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14420-4:2013EN 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 1
20、0/PN 16/PN 25/PN 40 (according to nominal size and pressure stage) according to EN 1092-1, on hose fittings with clamp units according 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 re
21、ferences 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
22、. EN 573-3, Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3: Chemical composition and 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-destructiv
23、e examination of welds Radiographic examination of welded joints EN 1706, Aluminium and aluminium alloys Castings Chemical composition 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, Stee
24、ls for quenching and tempering Part 2: Technical delivery conditions for non alloy steels EN 10087, Free-cutting 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 10216-1, Seamless steel tubes fo
25、r pressure purposes Technical delivery conditions Part 1: Non-alloy steel tubes with specified room temperature properties EN 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 r
26、esistant steel castings EN 12163, Copper and copper alloys Rod for general purposes EN 14420-1:2013, Hose fittings with clamp 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 =
27、 0,1 MPa. BS EN 14420-4:2013EN 14420-4:2013 (E) 6 EN 14420-3, Hose fittings with clamp units Part 3: Clamp units, bolted 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
28、Part 2: Geometrical tolerances for features without individual tolerance indications (ISO 2768-2) EN ISO 4042, Fasteners 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 Ultraso
29、nic testing Acceptance levels (ISO 11666) EN ISO 15614-1, Specification and qualification of welding procedures for metallic 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 qualificatio
30、n of welding procedures for metallic materials Welding procedure test - Part 2: Arc welding of aluminium and its alloys (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 test
31、ing of welds Radiographic testing Part 2: X- and gamma-ray techniques with digital detectors (ISO 17636-2) EN ISO 17638, 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
32、 (ISO 17640) EN ISO 23277, Non-destructive testing of welds Penetrant testing of welds Acceptance levels (ISO 23277) EN ISO 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 Chara
33、cterization of indications in welds (ISO 23279) 3 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 refere
34、nce 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 1 to entry: The number following the letters DN does not represent a measurable value and s
35、hould not be used for calculation purposes except where specified in the relevant standard. BS EN 14420-4:2013EN 14420-4:2013 (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. SOUR
36、CE: EN ISO 6708:1995, 2.1 3.2 PN alphanumeric designation used for reference purposes related to a combination of mechanical 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 f
37、ollowing the letters PN does not represent a measurable value and should not be used for calculation purposes except 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 p
38、arts list for hose fittings with flanges is given in Table 1. End-to-end dimensions and weights are given in Table 2. 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 Loos
39、e flange According to EN 10921a3 Hose tail with fixed flange According to 5.3 4 Clamp unit According to EN 144203 aDuring assembly, measures should be taken. BS EN 14420-4:2013EN 14420-4:2013 (E) 8 For designation of a complete hose fitting, see EN 14420-1. Table 2 End-to-end dimensions and weights
40、Nominal size Hose fitting with loose flange and weld neck collar Hose fitting with fixed flange End-to-end dimension 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 6
41、5 131 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 of 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 wit
42、h EN 22768-mK. Unless otherwise specified tolerances on flanges shall be in accordance with EN 1092-1. NOTE The 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). H
43、ereafter, the dimension l1may be reduced by the dimension l3according to Figure 5 and Table 5. Dimensions of the 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 wit
44、h weld neck collar and loose flange Figure 3 shows a hose tail with weld neck collar and loose flange. The length of the hose tail according to nominal size (DN) is given in Table 3. BS EN 14420-4:2013EN 14420-4:2013 (E) 9 Types are: a) SC-FL (with loose flange); b) SC-FLB (without loose flange). Ke
45、y 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 Example for an ordering designation of a hose tail with weld neck collar w
46、ithout loose flange (SC-FLB) with nominal size DN 50, material number 1.0038: Hose tail EN 14420-4 SC FLB 50 1.0038 5.3 Hose tail with fixed flange Figure 4 shows a hose tail with fixed flange (SC-FV). The length of the hose tail according to nominal size (DN) is given in Table 4. 2)Different from E
47、N 1092-1 nominal size DN 80 with 8 bolt holes. BS EN 14420-4:2013EN 14420-4:2013 (E) 10 Key 1 fixed flange according to EN 1092-1 2 hose side part according to 5.4 apossible welding connection (see 5.5) Figure 4 Hose tail with fixed flange Example for an ordering designation of a hose tail with fixe
48、d flange (SC-FV) with nominal size DN 50, material number 1.0038: Hose tail EN 14420-4 SC FV 50 1.0038 Table 3 Length of hose tail SC-FL and SC-FLB Table 4 Length of hose tail SC-FV Nominal size DN l1amm Nominal size DN l2mm 15 85 15 85 20 90 20 88 25 90 25 88 32 90 32 90 40 91 40 93 50 107 50 107 6
49、5 120 65 120 80 129 80 129 100 169 100 171 150 231 150 236 200 300 200 307 aReduced length in case of one-piece type (without welding). BS EN 14420-4:2013EN 14420-4:2013 (E) 11 5.4 Hose tail Key 1 hose side parts of tail according to EN 14420-2 aThe type of weld preparation depends on the welding procedure and should be agreed when ordering hose tail parts. Figure 5 Hose tail NOTE Details not specified are at the discretion o
