1、BSI Standards PublicationBS EN 14420-3:2013Hose fittings with clamp unitsPart 3: Clamp units, bolted or pinnedBS EN 14420-3:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14420-3:2013.It supersedes BS EN 14420-3:2004 which is withdrawn.The UK participation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 72875 4ICS 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 14420-3:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14420-3 July 2013 ICS 23.040.70 Supersedes EN 14420-3:2004English Version Hose fittings with clamp units - Part 3
5、: Clamp units, bolted or pinned Raccords pour flexibles avec demi-coquille - Partie 3: Colliers boulonns ou goupills Schlaucharmaturen mit Klemmfassungen - Teil 3: Klemmfassungen, verschraubt oder verstiftet This European Standard was approved by CEN on 15 May 2013. CEN members are bound to comply w
6、ith 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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Man
7、agement 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 under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same s
8、tatus as the official versions. 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, Ma
9、lta, Netherlands, Norway, 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 right
10、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-3:2013: EBS EN 14420-3:2013EN 14420-3:2013 (E) 2 Contents Page Foreword 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
11、 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 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 .
12、 16 Bibliography . 17 BS EN 14420-3:2013EN 14420-3:2013 (E) 3 Foreword This document (EN 14420-3:2013) 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 n
13、ational 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 of p
14、atent 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 14420-3:2004, the following changes have been made: In Clause 2, the normative references have been updated. A new Clause 3 “Ter
15、ms 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). In 7.2, the requirements for aluminium alloys have been amended. In Clause 8, the note has been deleted. The Bibliography has be
16、en 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 pinned Part 4: Flange co
17、nnections Part 5: Threaded connections Part 6: TW tank truck couplings Part 7: Cam locking couplings Part 8: Symmetrical half coupling (Guillemin system) BS EN 14420-3:2013EN 14420-3:2013 (E) 4 According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following c
18、ountries are bound to implement this European Standard: 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,
19、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14420-3:2013EN 14420-3:2013 (E) 5 1 Scope This European Standard specifies requirements for clamp units for hose couplings according to EN 14420-1 for use with hose tails according to EN
20、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 normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For unda
21、ted references, the latest edition of the referenced document (including any amendments) applies. EN 586-2, Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements EN 1706, Aluminium and aluminium alloys Castings Chemical composition and mechanical
22、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 Forgings EN 14420-1:2013, Hose fittings with clamp units Part 1: Requirements, types of fixing and connection, designation and testing EN 14420-2
23、, 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 individual tolerance indications (ISO 2768-1) EN 22768-2, General tolerances Part 2: Geometrical tolerances for features without individua
24、l tolerance indications (ISO 2768-2) EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs (ISO 3506-1) EN ISO 3506-2, EN ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners Part 2: Nuts (ISO 3506-2) EN IS
25、O 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 cap screws (ISO 4762) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies Vocabulary (ISO 8330:2007) 3 Terms and definitions
26、For the purposes of this document, the terms and definitions given in EN ISO 8330:2008 and the following apply. BS EN 14420-3:2013EN 14420-3:2013 (E) 6 3.1 DN (nominal size) alphanumeric designation of size for components of a pipework system, which is used for reference purposes. It comprises the l
27、etters 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 should not be used for calculatio
28、n purposes except where specified in the relevant standard. 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 4 Fixing range of clamp units The pinching ran
29、ge 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 outside 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、 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 0,8 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 1
31、4420-2. 5 Types of clamp units and designations 5.1 General The different types are: a) clamp unit K, bolted according to 5.2; BS EN 14420-3:2013EN 14420-3:2013 (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 un
32、it 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 clamp 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 hexag
33、on 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 made 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
34、 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 BS EN 14420-3:2013EN 14420-3:2013 (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 Fi
35、gure 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 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
36、. Designation Nominal size DN Number of parts 1 Clamp unit shell 25 to 100 2 2 Hinge pin 1 3 Locking pin 1 BS EN 14420-3:2013EN 14420-3:2013 (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
37、 parts: general tolerances shall be according to EN 22768 mK: die forging qualities made from wrought copper alloy shall be according to EN 12420; 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 t
38、he manufacturer. 6.1.1.2 Clamp unit K, bolted DN 100 is shown. arounded Figure 3 Clamp unit K, bolted BS EN 14420-3:2013EN 14420-3:2013 (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 T
39、olerances 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 0,8 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
40、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 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
41、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 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 BS EN 14420-3:2013EN 14420-3:2013 (
42、E) 11 Table 4 (continued) Nominal size Ribs r5r6r7r8r9r10r11r12s1s2t1t2t3DN Tolerances Tolerances Tolerances min. Tolerances min. 15 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
43、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 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. BS EN 14420-
44、3:2013EN 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 BS EN 14420-3:2013EN 14420-3:2013 (E) 13 Table 5 Dimensions for clamp unit S, pinned Dimensions in millimetres Nominal size b1e1e2e3e4e1 e4af1f2l1l2l3DN Toler-
45、ances max. min. min. min. 1,0 Number 05,0min. 1,0 1,0 25 58 2 22,5 12,5 13 18,5 16,02,0+9 3 4 46 3 13,25 32 66 32+13,5 14 48 40 73 24,5 13,5 14 22,5 16,03,0+10 52 50 89 15,5 16 56 17 65 107 42+29 22,5 23 26 4 5 74 3,5 18 80 118 23,5 24 76 20 100 149 32 30,5 31 28,5 11 92 5 27 ae1to e4applies for eac
46、h set of pinned clamp shells. Nominal size r1r2r3r4r5r6s1DN Tolerances Tolerances Tolerances Tolerances min. max. min. 25 19 0,4 12,8 0,3 15,5 0,4 16,5 0,4 2 4 2,5 32 22,5 16,3 19,5 20 40 26,5 19,3 22,5 23,5 3 50 34,5 0,5 25,3 29 0,5 30,5 0,5 65 41,5 31,8 36,5 37,5 2,5 5 80 47 38 0,5 42 43 100 60 50
47、,5 54,5 56 4 6.1.2 Weights The weights for complete clamp units according to their nominal sizes (DN) are given in Table 6. Table 6 Weights for complete clamp units Nominal size Clamp unit K, bolted weight (mass) kg Clamp unit S, pinned weight (mass) kg DN aluminium brass stainless steel aluminium s
48、tainless steel 15 0,1 0,3 0,25 20 0,1 0,3 0,3 25 0,15 0,4 0,4 0,1 0,3 32 0,15 0,4 0,4 0,1 0,3 40 0,15 0,45 0,45 0,15 0,45 BS EN 14420-3:2013EN 14420-3:2013 (E) 14 Table 6 (continued) Nominal size Clamp unit K, bolted weight (mass) kg Clamp unit S, pinned weight (mass) kg DN aluminium brass stainless steel aluminium stainless steel 50 0,3 0,8 0,8 0,2 0,6 65 0,45 1,1 1,1 0,35 1 80 0,5 1,3 1,3 0,4 1,1 100 1 2,5 2,5 0,7 2,1 150 3,4 9,3 a 200 6,5 a a aWeight not specified. 6.2 Nuts, bolts and pin
