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2、CS 23.040.70Hose tail and ferrule for crimping and swagingDRAFT FOR DEVELOPMENTDD CEN/TS 14421:2006DD CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSIThis Draft for Development was published under the authority of the Standards Poli
3、cy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 53483 6withdraw it. Comments should be sent to the Secretary of the responsible BSI Technical Committee at British Standards House, 389 Chiswick High Road, London W4 4AL.The UK participation in its preparation was entrusted to Techn
4、ical 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 correc
5、t application.Amendments issued since publicationAmd. No. Date Commentsfor its conversion to a European standard. A review of this publication will be initiated not later than 3 years after its publication by the European organization so that a decision can be taken on its status. Notification of th
6、e start of the review period will be made in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the
7、 Technical Specification or to National forewordThis Draft for Development is the UK implementation of CEN/TS 14421:2006.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be ap
8、plied on this provisional basis, so that information and experience of its practical application can be obtained.Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible TECHNICAL SPECIFICATIONSPCIFICATIO
9、N TECHNIQUETECHNISCHE SPEZIFIKATIONCEN/TS 14421December 2006ICS 23.040.70English VersionHose tail and ferrule for crimping and swagingDouilles et manchons pour sertissage et emboutissage Schlauchstutzen und Presshlsen zum internen undexternen VerpressenThis Technical Specification (CEN/TS) was appro
10、ved by CEN on 24 September 2006 for provisional application.The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit theircomments, particularly on the question whether the CEN/TS can be converted into a European Standa
11、rd.CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS availablepromptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)until the final decision a
12、bout the possible conversion of the CEN/TS into an EN is reached.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
13、Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by
14、any means reservedworldwide for CEN national Members.Ref. No. CEN/TS 14421:2006: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .5 4 Requirements.7 5 Dimensions a
15、nd designation8 6 Swaging or crimping force .16 7 Materials .16 8 Surface finish .17 9 Welding .17 10 Marking .17 11 Testing and documentation18 12 Information to be supplied by the purchaser .18 Bibliography 19 CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08
16、, Uncontrolled Copy, (c) BSI3 Foreword This document (CEN/TS 14421:2006) 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 Technical Specification is part of a suite of standards related to the fittings
17、of rubber and plastic hoses and hose assemblies EN 14420-1: Hose fittings with clamp units - Part 1: Requirements, survey, 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, bolte
18、d 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 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
19、couplings EN 14420-8: Hose fittings with clamp units - Part 8: Symmetrical half coupling (Guillemin system) EN 14422: Clamp type coupling assemblies for LPG transfer hoses EN 14423: Clamp type coupling assemblies for use with steam hoses rated for pressures up to 18 bar EN 14424: Hose fittings with
20、screwed ferrules According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this CEN Technical Specification: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
21、Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI4 1 Scope This
22、Technical Specification applies to hose tails and ferrules for crimping and swaging and covers the following types of attachment between hose and couplings: internal swaging; external swaging; external crimping. Maximum working pressure 10 bar, maximum working temperature 150 C (depending on the res
23、pective material). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1008
24、8-1, Stainless steels Part 1: List of stainless steels EN 10204, Metallic products Types of inspection documents EN 10213-4, Technical delivery conditions for steel castings for pressure purposes Part 4: Austenitic and austenitic-ferritic steel grades EN 14420-1, Hose fittings with clamp units Part
25、1: Requirements, survey, designation and testing EN ISO 1307, Rubber and plastics hoses for general-purpose industrial applications Bore diameters and tolerances, and tolerances on length (ISO 1307:1992) EN ISO 8031, Rubber and plastics hoses and hoses assemblies Determination of electrical resistan
26、ce (ISO 8031:1993) EN ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary (ISO 8330:1998) EN ISO 15607, Specification and qualification of welding procedures for metallic materials General rules (ISO 15607:2003) EN ISO 15609-1, Specification and qualification of welding procedures for
27、 metallic materials Welding procedure specification Part 1: Arc welding (ISO 15609-1:2004) EN ISO 15614-1:2004, 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 1
28、5614-1:2004) CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 internal swage act of expanding the hose tail to compress the h
29、ose material against the ferrule, therefore providing near unrestricted full flow through the bore of the connection, which results in reduced turbulence of the fluid flowing through the hose. Internal swaging is achieved by drawing a hardened tool (commonly known as a dolly) through the tail to exp
30、and it. The compressive force exerted on the hose by the coupling causes the hose material to flow into the serrated cavities of both tail and ferrule thus providing a secure mechanical bond Key 1 shape of tail after swaging 2 shape of tail before swaging Figure 1 Internal swage 3.2 external swage a
31、ct of compressing the hose ferrule onto the hose material in order to compress it against the hose tail. External swaging is achieved by pushing the hose and coupling assembly through a die aperture of smaller diameter than the external diameter of the ferrule. Similar in principle to internal swagi
32、ng, the external diameter of the ferrule is permanently reduced such that the resulting compressive force exerted onto the hose causes it to flow into the serrated cavities of both tail and ferrule thus providing a secure mechanical bond CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA S
33、TANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI6 Key 1 shape of ferrule after swaging 2 shape of ferrule before swaging Figure 2 External swage 3.3 external crimping with external crimping the outside of the ferrule is reduced to compress the hose material against the tail by pressure being a
34、pplied on the outside of the ferrule, thereby causing the hose material to flow into the serrated cavities between the tail and the ferrule effecting a secure mechanical bond Key 1 shape of ferrule after crimping 2 shape of ferrule before crimping Figure 3 External crimping CEN/TS 14421:2006Licensed
35、 Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI7 4 Requirements 4.1 General This Technical Specification is intended for couplings operating within the following operating conditions: 4.2 Fluid pressure Maximum working pressure 10 bar; test pressure 30 bar
36、; minimum burst pressure 50 bar. NOTE 1 MPa = 10 bar. 4.3 Temperature Range of working temperature: carbon steel (Cst) 29 C to 100 C; stainless steel (Stst) 50 C to 150 C. NOTE Hose couplings can operate outside of the above operating conditions but they are not covered by this Technical Specificati
37、on. CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI8 5 Dimensions and designation 5.1 Survey 5.1.1 Internal swage tail Table 1 Tail fittings dimensions Internal swage Dimensions in millimetres d1d2d3d4d5l1l2l3l4Hose tail DN/nb 05,0
38、4,00+ 0,25 nom min. min. max. Ref 0,75 50 (2“) 51 43 56 63 53 100 45 145 5 65 (2“) 64 56 68 73 65 100 55 155 5 80 (3“) 76 68 84 88,9 78 125 60 185 5 100 (4“) 102 93 109 114,3 103 150 63 213 5 125 (5“) 127 118 135 141,3 128 175 67 242 5 150 (6“) 152 143 162 168,3 154 200 70 270 5 200 (8“) 203 192 211
39、 219,1 204 250 73 323 5 Figure 4 Internal swage tail NOTE For serration detail see Figure 8. CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI9 5.1.2 External swage tail Table 2 Tail fittings dimensions External swage Dimensions in m
40、illimetres d1d2d3d4d5l1l2l3l4Hose tail DN/nb 05,04,00+ 0,25 nom min. min. max. Ref 0,75 50 (2“) 51 43 56 63 66 100 45 145 5 65 (2“) 64 56 68 73 78 100 55 155 5 80 (3“) 76 68 84 88,9 94 125 60 185 5 100 (4“) 102 93 109 114,3 119 150 63 213 5 125 (5“) 127 118 135 141,3 145 175 67 242 5 150 (6“) 152 14
41、3 162 168,3 172 200 70 270 5 200 (8“) 203 192 211 219,1 226 250 73 323 5 Figure 5 External Swage Tail NOTE For serration detail see Figure 8. Retaining ring may be held in position by welding (as shown) or other suitable secure method. CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STA
42、NDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI10 5.1.3 Internal swage ferrule Table 3 Ferrule dimensions Internal swage Dimensions in millimetres t1 at2l1l2d1d2d3Hole dia Clearance cFerrule DN/nb min. 05,0min. 1,0 min. 25,00+No of holes (optional) 1,0 50 (2“) 3 4 100 19 b 58 2 12 2 65 (2“) 3 4
43、 100 25 b 69 2 12 2 80 (3“) 3 4 125 25 b 86 2 12 2 100 (4“) 3 4 150 32 b 111 2 12 2 125 (5“) 4 4 175 35 b 137 2 16 2 150 (6“) 4 4 200 35 b 163 2 16 3 200 (8“) 5 4 250 38 b 214 Dependant upon the Hose OD 2 16 3 a Wall thickness t1= 2IDOD bd1= Hose OD + Clearance cClearance = free space between OD of
44、hose and ID of ferrule EXAMPLE To calculate d1for a DN 100 (4“) hose with an OD of 120 mm Hose OD = 120 mm + Clearance 2 mm + t Wall thickness t1 2 = 6 mm d3= 128 mm Figure 6 Internal swage ferrule NOTE For serration detail see Figures 10 and 11. CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANG
45、E CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI11 5.1.4 External swage ferrule Table 4 Ferrule dimensions External swage Dimensions in millimetres t1 at2l1l2d1d2d3Hole dia Clearance cFerrule DN/nb min. 5,0 min. 1,0 min. 25,00+No of holes (optional) 1,0 50 (2“) 3 4 100 19 b 62 2 12 2
46、65 (2“) 3 4 100 25 b 75 2 12 2 80 (3“) 3 4 125 25 b 90 2 12 2 100 (4“) 3 4 150 32 b 116 2 12 2 125 (5“) 4 4 175 35 b 143 2 16 2 150 (6“) 4 4 200 35 b 170 2 16 3 200 (8“) 5 4 250 38 b 221 Dependant upon the Hose OD 2 16 3 a Wall thickness t1= 2IDOD bd1= Hose OD + Clearance cClearance = free space bet
47、ween OD of hose and ID of ferrule EXAMPLE To calculate d1for a DN 100 (4“) hose with an OD of 120 mm Hose OD = 120 mm + Clearance 2 mm + t Wall thickness t1 2 = 6 mm d3= 128 mm Figure 7 External swage ferrule NOTE For serration detail see Figures 10 and 11. CEN/TS 14421:2006Licensed Copy: Wang Bin,
48、ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI12 5.1.5 Serration details Internal and external swage tails Table 5 Internal and external swage tails Dimensions in millimetres Number of serrations aw1h1Hose tail DN/nb min. Nom 0,2 50 (2“) 12 6 1,5 65 (2“) 13 6 1,5 80 (3“)
49、9 10 1,8 100 (4“) 12 10 1,8 125 (5“) 14 10 1,8 150 (6“) 17 10 1,8 200 (8“) 22 10 1,8 aFor softwall hoses typically. They shall be as defined in EN ISO 8330. The number of serrations stated shall be reduced by removing the first 2 serrations according to Figure 9. Figure 8 Serration Figure 9 Reduced serration CEN/TS 14421:2006Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 29/04/2008 09:08, Uncontrolled Copy, (c) BSI13 5.1.6 Se
