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1、BRITISH STANDARD BS EN 14420-3:2004 Hose fittings with clamp units Part 3: Clamp units, bolted or pinned The European Standard EN 14420-3:2004 has the status of a British Standard ICS 23.040.70 ? Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00
2、2007, Uncontrolled Copy, (c) BSI BS EN 14420-3:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 3 October 2005 BSI 3 October 2005 ISBN 0 580 46624 8 National foreword This British Standard is the official English language version of EN 14
3、420-3:2004. The UK participation in its preparation was entrusted to Technical Committee PRI/66, Rubber and plastics tubing, hoses and hose assemblies, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references
4、 The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Search” facility of the BSI Electronic Catalogue or of British S
5、tandards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to
6、the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside fron
7、t cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: Institute Of Technology Tallaght, Institute of T
8、echnology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14420-3 November 2004 ICS 23.040.70 English version Hose fittings with clamp units - Part 3: Clamp units, bolted or pinned Raccords pour flexibles avec demi-coquille - Parti
9、e 3: Colliers boulonns ou goupills Schlaucharmaturen mit Klemmfassungen - Teil 3: Klemmfassungen, verschraubt oder verstiftet This European Standard was approved by CEN on 30 September 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
10、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 Central Secretariat or to any CEN member. This European Standard exists in three official v
11、ersions (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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgiu
12、m, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMI
13、T EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-3:2004: E Licensed Copy: Institute Of Technology Tallaght, I
14、nstitute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 14420-3:2004 (E) 2 Contents page Foreword3 1Scope 4 2Normative references4 3Fixing range of clamp units4 4Types of clamp units and designations 5 4.1General5 4.2Clamp unit K, bolted5 4.3Clamp unit S, pinned.7 5
15、Dimensions and weights.7 5.1Clamp units 7 5.1.1Dimensions.7 5.2 Weights12 5.3Nuts, bolts and pins.13 6Materials .13 6.1General13 6.2Clamp shells.13 6.3Bolts and nuts14 6.4Pins .14 7Marking.14 8Type approval testing and quality control 15 Bibliography16 Licensed Copy: Institute Of Technology Tallaght
16、, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 3 Foreword This document (EN 144203:2004) has been prepared by Technical Committee CEN/TC 218 “ Rubber and plastics hoses and hose assemblies” , the secretariat of which is held by BSI. Th
17、is 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 May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. EN 14420 consists at the time of publication of the followi
18、ng parts: 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, bolted or pinned EN 14420-4, Hose fittings with c
19、lamp 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 couplings EN 14420-8, Hose fittings with clamp units
20、 Part 8: Symmetrical half coupling (Guillemin system) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den- mark, Estonia, Finland, France, Germa
21、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem- bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007
22、, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 4 1 Scope This document 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 25 bar, maximum working temperature 65 C. 2 Normative references The
23、following referenced documents are indispensable for the application of this document. For dated refer- ences, 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 P
24、art 2: Mechanical 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 10213-4, Technical delivery conditions for steel castings for pressure
25、 purposes Part 4: Austenitic and austenitic-ferritic steel grades. EN 12420, Copper and copper alloys Forgings. 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 20898-
26、2, Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread (ISO 898-2:1992). EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999). EN ISO 3506-1, Mechanical properties of corrosio
27、n-resistant stainless-steel fasteners Part 1: Bolts, screws and studs (ISO 3506-1:1997). EN ISO 3506-2, Mechanical properties of corrosion-resistant stainless-steel fasteners Part 2: Nuts (ISO 3506-2:1997). EN ISO 4032, Hexagon nuts, style 1 Product grades A and B (ISO 4032:1999). EN ISO 4042, Faste
28、ners Electroplated coatings (ISO 4042:1999). EN ISO 4762, Hexagon socket head cap screws (ISO 4762:2004). EN 22768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989) EN 22768-2, General tolerances Part 2: Geometrical
29、tolerances for features without individual tolerance indications (ISO 2768-2:1989) 3 Fixing range of clamp units The pinching range of the clamp units shall be according to Table 1. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontro
30、lled Copy, (c) BSI ? EN 14420-3:2004 (E) 5 NOTE The same clamp units are used for DN and inch designated hoses. Care should be taken at the upper limit of the fixing range. Table 1 Pinching range of clamp units Dimensions in millimetres Nominal size Hose inside diameter Hose outside diameter range w
31、ith 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 0,8 89 to 93 89 to 92
32、100 100 0,8 114 to 119 115 to 118 150 150 5 , 1 8 ,0 + 167 to 173 200 200 2 8 ,0 + 222 to 229 a Hose shank shall be according to EN 14420-2. 4 Types of clamp units and designations 4.1 General The different types are: clamp unit K, bolted according to 4.2; clamp unit S, pinned according to 4.3. NOTE
33、 The design of clamp unit K allows for expert adjustment in certain cases. The clamp unit shells need not comply with the figures, only the dimensions specified need to be complied with. 4.2 Clamp unit K, bolted The dimensions of clamp units K (Figure 1) shall be according to Figure 3 and Table 4. L
34、icensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 6 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 cla
35、mp 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 of parts 1 Clamp unit shell 15 to 200 2 100 4 150 6 2 Hexagon socket head screw 200 8 100 4 150 6 3 Hexagon
36、nut 200 8 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 7 4.3 Clamp unit S, pinned The dimensions of clamp units S (Figure 2) shall be according to Figure 4 and Table 5. Key 1 Clamp unit
37、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. Designation Nominal size DN Number
38、of parts 1 Clamp unit shell 2 2 Hinge pin 1 3 Locking pin 25 to 100 1 5 Dimensions and weights 5.1 Clamp units 5.1.1 Dimensions 5.1.1.1 General Tolerances for dimensions without specified tolerances: Dimensions for machined parts: general tolerances shall be according to EN 22768 mK: dye forging qua
39、lities made from wrought copper alloy shall be according to EN 12420; Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 8 dye forging qualities in aluminium and aluminium alloys shall be acco
40、rding to EN 586-2 and EN 1706. Details not specified are at the discretion of the manufacturer. 5.1.1.2Clamp unit K, bolted DN 100 is shown. a Rounded Figure 3 Clamp unit K, bolted Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrol
41、led Copy, (c) BSI ? EN 14420-3:2004 (E) 9 Table 4 Dimensions of clamp unit K, bolted Dimensions in millimetres Nominal size Ribs Bolt holes b1b2b3de1e2e3e4e5e6e7f1f2 DN Toler- ances num- ber num- ber 0,5 Toler- ances Toler- ances 15 51 35 20 63 45 25 69 2,0 1,5 51 32 76 58 0,5 40 83 7 1,7 65 16 0,5
42、17 30 9 3 50102 0 ,3 0 , 2 + 8320 18 39 65120 2 98 80132 3 9,5 110 22 24 41 10 4 100166 0 , 4 0 , 2 + 4 9 1 12 4 140 0,8 30 0,8 41 21 3,5 12 5 150227 5 12 2 6 2,5 198 1,0 45 45 5 15 200284 0 ,6 0 , 2 + 6 14 3 14 8 4,5 255 1,6 46 1,0 41 32 24 6 Nominal size Ribs hl1l2l3l4l5l6r1r2r3r4 DN 1,0 1,0 0 2 ,
43、0 2,0 0 + Toler- ances Toler- ances Toler- ances num- ber Toler- ances 1510 12 6,8 9 20 16 0,3 9,8 12,5 25 19 12,8 15,5 0,3 32 3 22,5 16,3 19,5 40 12 50 11,5 26 19,3 22,5 50 56 3,5 16 4 12 13 33,5 0,4 25,3 29,5 0,4 2 65 74 16,5 20 41 31,8 0,3 37 80 17 76 4 18,5 5 20 21 47 0,5 38 0,5 42,5 0,5 10028 1
44、20 6 24 6 25 26 60 0,65 50,7 55 3 55,5 15033 180 10 27 11 32 32 87 75,7 0,7 79,5 0,6 5 80 0,6 20029 240 13 37 15 40 47 114 0,8 101 1,0 107 0,8 4 108,5 0,8 Nominal size Ribs r5r6r7r8r9r10r11r12s1s2t1t2t3 DN To- ler- an- ces To- ler- an- ces To- ler- an- ces min. Toler - an- cesmin. 15 9,5 13 1 1,5 0,
45、5 20 14 17 0,3 25 17 0,3 20 1,5 0,75 32 20 23,5 4,510 40 23,5 0,4 27 0,4 2,5 10,7 50 30,5 35,5 3 3 45 65 38 42,5 80 43,5 0,5 48 0,5 2 2 8 1 3,5 13,8 5,512 100 56,25 0,6 57 0,6 62 0,6 2,5 4 10 1,25 4,5 17,8 0 6 ,0 8 16 150 81 82 90 5 14 10 20 200110 0,8 111,5 0,8 118 0,8 3 3 6 15 1,5 6,5 20 0 8 ,0 12
46、 22 a a At the discretion of the manufacturer. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 10 5.1.1.3Clamp unit S, pinned DN 50 is shown a Rounded 20 to 30 Figure 4 Clamp unit S, pinned
47、 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Sun Aug 26 15:53:47 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? EN 14420-3:2004 (E) 11 Table 5 Dimensions for clamp unit S, pinned Dimensions in millimetres Nominal size b1e1e2e3e4e1 e4af1f2l1l2l3 DN Toler- ances max. min. m
48、in. min. 1,0 Number 0 5 ,0 min. 1,0 1,0 25 58 2 12,5 13 46 32 66 22,5 13,5 14 18,5 1 6, 0 2, 0 + 9 48 40 73 13,5 14 52 13,25 50 89 3 2 + 24,5 15,5 16 22,5 3 4 56 3 17 65107 22,5 23 74 18 80118 29 23,5 24 26 10 76 3,5 20 100149 4 2 + 32 30,5 31 28,5 1 6, 0 3 , 0 + 11 4 5 92 5 27 a e1 to e4 applies for each set of pinned clamp shells. Table 5 (concluded) Nominal size r1r2r