1、September 2013 Translation by DIN-Sprachendienst.English price group 11No 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*“2058207www.din.deDDIN EN 14420-3Hose fittings with clamp units Part 3: Clamp units, bolted or pinned;English version EN 14420-3:2013,English translation of DIN EN 14420-3:2013-09Schlaucharmaturen mit Klemmfassungen Teil 3: Klemmfassungen, verschraubt oder verstiftet;Englische Fass
3、ung EN 14420-3:2013,Englische bersetzung von DIN EN 14420-3:2013-09Raccords pour flexibles avec demi-coquille Partie 3: Colliers boulonns ou goupills;Version anglaise EN 14420-3:2013,Traduction anglaise de DIN EN 14420-3:2013-09SupersedesDIN EN 14420-3:2005-05www.beuth.deIn case of doubt, the German
4、-language original shall be considered authoritative.Document comprises 19pages08.13 DIN EN 14420-3:2013-09 2 A comma is used as the decimal marker. National foreword This document (EN 14420-3:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” (
5、Secretariat: 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 14
6、420-3:2005-05 as follows: a) Clause 2 “Normative references” has been updated; b) Clause 3 “Terms and definitions” has been added; c) in Clause 4, the note has been deleted; d) in Subclause 6.1.1.2, dimensions and tolerances of clamp unit K, bolted, have been revised (see Table 4); e) in Subclause 7
7、.2, the list of materials for clamp shells has been supplemented by aluminium alloys; f) in Clause 8, the note has been deleted; g) the Bibliography has been revised; h) the standard has been editorially revised. Previous editions DIN 2817-2: 1995-05 DIN EN 14420-3: 2005-05 EUROPEAN STANDARD NORME E
8、UROPENNE EUROPISCHE NORM EN 14420-3 July 2013 ICS 23.040.70 Supersedes EN 14420-3:2004English Version Hose fittings with clamp units - Part 3: Clamp units, bolted or pinned Raccords pour flexibles avec demi-coquille - Partie 3: Colliers boulonns ou goupills Schlaucharmaturen mit Klemmfassungen - Tei
9、l 3: Klemmfassungen, verschraubt oder verstiftet 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 alterat
10、ion. 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 b
11、y 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,
12、 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 STANDARD
13、IZATION 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 reserved worldwide for CEN national Members. Ref. No. EN 14420-3:2013: EEN 14420-3:2013 (E) 2 Contents Page Fore
14、word 3 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Fixing range of clamp units 6 5 Types of clamp units and designations 6 5.1 General 6 5.2 Clamp unit K, bolted 7 5.3 Clamp unit S, pinned .8 6 Dimensions and weights .9 6.1 Clamp units 9 6.2 Nuts, bolts and pins 14 7 Materials 15
15、 7.1 General . 15 7.2 Clamp shells 15 7.3 Bolts and nuts . 15 7.4 Pins 16 8 Marking 16 9 Type testing and quality control . 16 Bibliography . 17 DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 3 Foreword This document (EN 14420-3:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and plast
16、ics 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 the
17、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 14420-3:2004. In comparison to EN
18、14420-3:2004, the following changes have been made: In Clause 2, the normative references have been updated. A new Clause 3 “Terms and definitions“ has been added. In Clause 4, the note has been deleted. In 6.1.1.2, dimensions and tolerances of clamp unit K, bolted, have been revised (see Table 4).
19、In 7.2, the requirements for aluminium alloys have been amended. In Clause 8, the note has been deleted. The 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
20、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) DIN EN 14420-3:201
21、3-09 EN 14420-3:2013 (E) 4 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 Yugoslav Republi
22、c 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. DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 5 1 Scope This Eu
23、ropean Standard specifies requirements for clamp units for hose couplings according to EN 14420-1 for use with hose tails according to EN 14420-2. Maximum working pressure is 25 bar; maximum working temperature is 65 C. 2 Normative references The following documents, in whole or in part, are normati
24、vely 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 586-2, Aluminium and aluminium alloys Forgings Part 2: Mechan
25、ical properties and additional property requirements EN 1706, Aluminium and aluminium alloys Castings Chemical composition and mechanical properties EN 10088-1, Stainless steels Part 1: List of stainless steels EN 10213, Steel castings for pressure purposes EN 12420, Copper and copper alloys Forging
26、s 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 22768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without
27、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 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs (ISO 35
28、06-1) EN ISO 3506-2, EN ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners Part 2: Nuts (ISO 3506-2) EN ISO 4032, Hexagon regular nuts (style 1) Product grades A and B (ISO 4032) EN ISO 4042, Fasteners Electroplated coatings (ISO 4042) EN ISO 4762, Hexagon socket head
29、 cap screws (ISO 4762) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies Vocabulary (ISO 8330:2007) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330:2008 and the following apply. DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 6 3.1 D
30、N (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 e
31、nd 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 use the DN designation system, any relationship between
32、 DN and component dimensions should be given, e.g. DN/OD or DN/ID. SOURCE: EN ISO 6708:1995, 2.1 4 Fixing range of clamp units The pinching range of the clamp units shall be according to Table 1. Table 1 Pinching range of clamp units Dimensions in millimetres Nominal size Hose inside diameter Hose o
33、utside diameter range with shank in-serted a(fixing range) DN Tolerances Clamp unit K, bolted Clamp unit S, pinned 15 13 0,5 22 to 24 20 19 0,5 30 to 33 25 25 0,5 36 to 39 36 to 38 32 32 0,5 43 to 46 43 to 45 40 38 0,5 50 to 53 50 to 52 50 50 0,7 63 to 67 63 to 67 65 63 0,8 78 to 82 78 to 81 80 75 0
34、,8 89 to 93 89 to 92 100 100 0,8 114 to 119 115 to 118 150 150 5,18,0+167 to 173 200 200 28,0+222 to 229 aHose shank shall be according to EN 14420-2. 5 Types of clamp units and designations 5.1 General The different types are: a) clamp unit K, bolted according to 5.2; DIN EN 14420-3:2013-09 EN 1442
35、0-3:2013 (E) 7 b) clamp unit S, pinned according to 5.3. NOTE The design of clamp unit K allows for expert adjustment in certain cases. The clamp unit shells need not comply with Figure 1 to Figure 4, only the dimensions specified need to be complied with. 5.2 Clamp unit K, bolted A parts list of cl
36、amp unit K (Figure 1) is given in Table 2. The dimensions of clamp unit K shall be according to Figure 3 and Table 4. Key 1 clamp unit shell 2 hexagon nut 3 hexagon socket head screw Figure 1 Clamp unit K Example for an ordering designation of a complete clamp unit K bolted for nominal size DN 50 ma
37、de of copper-zinc-alloy CW 614 N: Clamp unit EN 14420-3 K 50 CW 614 N Table 2 Parts list of clamp unit K Item No. Designation Nominal size DN Number of parts 1 Clamp unit shell 15 to 200 2 2 Hexagon socket head screw 100 4 150 6 200 8 3 Hexagon nut 100 4 150 6 200 8 DIN EN 14420-3:2013-09 EN 14420-3
38、:2013 (E) 8 5.3 Clamp unit S, pinned A parts list of clamp unit S (Figure 2) is given in Table 3. The dimensions of clamp unit S shall be according to Figure 4 and Table 5. Key 1 clamp unit shell 2 hinge pin 3 locking pin Figure 2 Clamp unit S Example for an ordering designation of a complete clamp
39、unit S, pinned for nominal size DN 50 from aluminium alloy EN AC-42100: Clamp unit EN 14420-3 S 50 EN AC-42100 Table 3 Parts list of clamp unit S Item No. Designation Nominal size DN Number of parts 1 Clamp unit shell 25 to 100 2 2 Hinge pin 1 3 Locking pin 1 DIN EN 14420-3:2013-09 EN 14420-3:2013 (
40、E) 9 6 Dimensions and weights 6.1 Clamp units 6.1.1 Dimensions 6.1.1.1 General Tolerances for dimensions without specified tolerances: Dimensions for machined parts: general tolerances shall be according to EN 22768 mK: die forging qualities made from wrought copper alloy shall be according to EN 12
41、420; die forging qualities in aluminium and aluminium alloys shall be according to EN 586-2 and EN 1706. NOTE Details not specified are at the discretion of the manufacturer. 6.1.1.2 Clamp unit K, bolted DN 100 is shown. arounded Figure 3 Clamp unit K, bolted DIN EN 14420-3:2013-09 EN 14420-3:2013 (
42、E) 10 Table 4 Dimensions of clamp unit K, bolted Dimensions in millimetres Nominal size Ribs Bolt holes b1b2b3d e1e2e3e4e5e6e7f1f2DN Tolerances Number Number 0,5 Tolerances Tolerances 15 51 2,0 3 7 4 1,5 35 0,5 16 0,5 17 30 9 3 20 63 45 25 69 51 32 76 0,30,2+1,7 58 40 83 65 0,8 50 102 9,5 2 83 20 0,
43、8 18 39 10 4 65 120 0,40,2+98 22 24 41 80 132 2,5 110 100b166 4 9 1 12 140 30 41 21 3,5 12 5 100c166 141 0,4 0,2 150 227 0,60,2+5 12 2 14 6 198 1,0 45 1,0 45 32 5 15 6 200 284 6 14 3 8 4,5 255 1,6 46 41 24 Nominal size Ribs h l1l2l3l4l5l6r1r2r3r4DN 1,0 min. min. min. Tolerances Tolerances Tolerances
44、 Number Tolerances 15 10 49 3 11,5 4 12 13 12 0,3 6,8 0,3 9 0,3 2 20 12 16 9,8 12,5 25 19 0,4 12,8 15,5 32 22,5 16,3 19,5 0,4 40 3,5 26 19,3 22,5 50 17 55 16 33,5 25,3 29,5 65 73 4 16,5 5 20 20 41 0,5 31,8 37 0,5 3 80 75 18,5 21 47 38 0,5 42,5 100b28 119 6 24 6 25 26 60 0,65 50,7 0,7 55 0,6 55,5 0,6
45、 100c120 60,5 56,5 57 150 33 179 10 27 11 32 32 87 0,8 75,7 79,5 5 80 200 29 239 13 37 15 40 47 114 101 1,0 107 0,8 4 108,5 0,8 DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 11 Table 4 (continued) Nominal size Ribs r5r6r7r8r9r10r11r12s1s2t1t2t3DN Tolerances Tolerances Tolerances min. Tolerances min. 15
46、 9,5 0,3 13 0,3 1 1,5 3 8 0,5 2,5 10,7 06,04,5 10 45 20 14 17 1,5 2 0,75 25 17 20 0,4 32 20 0,4 23,5 2 1 40 23,5 27 5,5 12 50 30,5 0,5 35,5 0,5 3 13,8 65 38 42,5 4 3,5 a 80 43,5 48 100b56,25 0,6 57 0,6 62 0,6 2,5 3 10 1,25 4,5 17,8 8 16 100c57,75 58,5 64,5 8 0,5 5,5 08,0150 81 0,8 82 0,8 90 0,8 3 5
47、14 1,5 6,5 20 10 20 200 110 111,5 118 6 15 12 22 aAt the discretion of the manufacturer. bFor clamp unit, bolted 100 x 8. cFor clamp unit, bolted 100 x 10. DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 12 6.1.1.3 Clamp unit S, pinned DN 50 is shown as chosen example. arounded 20 to 30 Figure 4 Clamp unit S, pinned DIN EN 14420-3:2013-09 EN 14420-3:2013 (E) 13 Table 5 Dimensions for clamp unit S, pinned Dimensions in millimetres Nominal size b1e1e2e3e4e1 e4af1f2l1l2l3DN Toler- ances max. min. min. min. 1,0 Number 05,0min. 1,0 1,0 25
