1、September 2013 Translation by DIN-Sprachendienst.English price group 19No 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!%(uEnglish version EN 14420-6:2013,English translation of DIN EN 14420-6:2013-09Schlaucharmaturen mit Klemmfassungen Teil 6: TW Tankwagen-Kupplungen;Englische Fassung EN 14420-6:2013,Englische bersetzung von DIN EN 14420-6:2013-09Raccords pour flexibles avec demi-coquille Partie 6: Rac
3、cords TW pour camion-citerne;Version anglaise EN 14420-6:2013,Traduction anglaise de DIN EN 14420-6:2013-09SupersedesDIN EN 14420-6:2007-04www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 52 pages 08.13 DIN EN 14420-6:2013-09 2 A comma i
4、s used as the decimal marker. National foreword This document (EN 14420-6:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Rohr
5、leitungen und Dampfkesselanlagen (Piping and Boiler Plant Standards Committee), Working Committee NA 082-00-02 AA Schlauchkupplungen. Amendments This standard differs from DIN EN 14420-6:2007-04 as follows: a) in Clause 1 “Scope”, the warning note has been revised; b) Clause 2 “Normative references”
6、 has been updated; c) Clause 3 “Terms and definitions” has been added; d) the term “sealing ring” has been replaced by “gasket” (main gasket/thread gasket); e) Clause 4 “Survey” has been renamed “Fitting combinations”; f) in Subclause 5.2.2.3 “Body designation”, the designation of a male coupling (D
7、N 100) has been changed; g) in Subclause 5.4.2.3 “Designation of a dust cap”, the designation has been changed; h) in Subclause 5.5.2.3 “Designation of a dust plug”, the designation has been changed; i) the requirements for thread gasket materials in Subclause 6.4 and main gasket materials in Sub-cl
8、ause 6.6 have been revised; j) in Clause 9 “Marking”, the requirements for marking have been revised; k) the content of Clause 10 “Type testing and quality control” has been replaced by a reference to EN 14420-1; l) the standard has been editorially revised. Previous editions DIN 28450-1: 1971-02, 1
9、980-02, 1989-11, 1996-03 DIN 28450-2: 1971-02, 1980-02, 1989-11, 1996-03 DIN 28450-3: 1971-02, 1980-02, 1989-11, 1996-03 DIN 28450-4: 1971-02, 1980-02, 1989-11, 1996-03 DIN 28450-5: 1971-02, 1980-02, 1989-11, 1996-03 DIN 28450-6: 1996-03 DIN 28453-1: 1972-03, 1987-11 DIN 28453-2: 1972-03, 1987-11 DI
10、N 28454-1: 1972-03, 1987-11 DIN 28454-2: 1972-03, 1987-11 DIN 28455: 1972-03, 1987-11 DIN 28456: 1972-03, 1987-11 DIN EN 14420-6: 2005-05, 2007-04 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14420-6 July 2013 ICS 23.040.70 Supersedes EN 14420-6:2004+A1:2007English Version Hose fittings with
11、 clamp units - Part 6: TW tank truck couplings Raccords pour flexibles avec demi-coquille - Partie 6: Raccords TW pour camion-citerne Schlaucharmaturen mit Klemmfassungen - Teil 6:TW Tankwagen-Kupplungen This European Standard was approved by CEN on 15 May 2013. CEN members are bound to comply with
12、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 Managem
13、ent 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 statu
14、s 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, Malta,
15、 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 rights of
16、 exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-6:2013: EEN 14420-6:2013 (E) 2 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Fitting combinations .6 5 Dimensions, designations 6 5.1 Hose fittings wit
17、h TW couplings 6 5.2 Male coupling (type VK) . 10 5.3 Female coupling (type MK) 15 5.4 Dust cap (type MB) . 23 5.5 Dust plug (type VB). 27 6 Materials 31 6.1 General . 31 6.2 Hose tail types MKST and VKST . 31 6.3 Protecting rings of hose tail type MKST and VKST 31 6.4 Thread gasket of male coupling
18、 type VK . 32 6.5 Fastening component of female coupling type MK 32 6.6 Main gasket of female coupling type MK . 32 7 Design 32 8 Fitting of hose couplings . 33 9 Marking 33 10 Type testing and quality control . 33 Annex A (normative) Gauges for TW tank truck couplings . 34 A.1 General . 34 A.2 Desi
19、gn; designation, dimensions and materials . 34 A.3 Marking 49 Bibliography . 50 DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 3 Foreword This document (EN 14420-6:2013) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”, the secretariat of which is held
20、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 latest by January 2014. Attention is drawn to the possibility tha
21、t 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 14420-6:2004+A1:2007. In comparison to EN 14420-6:2004+A1:2007, the following changes have been mad
22、e: In Clause 1, the warning paragraph has been revised. In Clause 2, the normative references have been updated. A new Clause 3 “Terms and definitions“ has been added. The term “sealing ring“ has been replaced by “gasket“ (main gasket/thread gasket). Clause 4 “Survey“ has been renamed “Fitting combi
23、nations“. In 5.2.2.3, the body designation of a male coupling (DN 100) has been changed. In 5.4.2.3, the designation of a dust cap has been changed. In 5.5.2.3, the designation of a dust plug has been changed. The requirements on thread gasket materials in 6.4 and main gasket materials in 6.6 have b
24、een revised. In Clause 9, the requirements for marking have been reviewed. Content of Clause 10 “Type testing and quality control“ has been replaced by a reference to EN 14420-1. The standard has been revised editorially. EN 14420, Hose fittings with clamp units consists of the following parts: Part
25、 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 connections Part 5: Threaded connections DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 4 Part 6: TW tank truck couplings Part 7: Cam lockin
26、g couplings Part 8: Symmetrical half couplings (Guillemin system) 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, Es
27、tonia, 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 the United Kingdom. DIN EN 14420-6:2013-0
28、9 EN 14420-6:2013 (E) 5 1 Scope This European Standard specifies the fitting combinations, design, materials and dimensions for hose fittings with couplings for tank trucks (TW couplings). Couplings for tank trucks in accordance with this document are intended to link hoses with connections for the
29、transport of liquids, solid matters and gases with the exception of liquid gas and steam. They can be employed in a working pressure range of 0,8 bar1)up to 16 bar at working temperatures of 20 C up to +65 C. Couplings for tank trucks for other operating conditions are subject to agreement. WARNING
30、Male and female dust couplings are pressure resistant plugs. They do not fulfil the function of a locking device, which should be installed in any case as long as the hose assembly is under pressure. 2 Normative references The following documents, in whole or in part, are normatively referenced in t
31、his 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: Mechanical properties and
32、additional property requirements EN 10083-2, Steels for quenching and tempering Part 2: Technical delivery conditions for non alloy steels EN 10088-1, Stainless steels Part 1: List of stainless steels EN 10213, Steel castings for pressure purposes EN 12420, Copper and copper alloy Forgings EN 14420-
33、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 14420-3, Hose fittings with clamp units Part 3: Clamp units, bolted or pinned EN 14420-5: 2013, Hose
34、 fittings with clamp units Part 5: Threaded connections 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 individual tolerance in
35、dications (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) 1) 1 bar = 0,1 MPa. DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 6 3 Terms and definitions For the purposes of this document, the t
36、erms and definitions given in EN ISO 8330:2008 and the following apply. 3.1 DN (nominal size) alpha-numeric 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
37、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 calculation purposes except where specified in the relevant standard. Note 2 to entry: I
38、n 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 3.2 main gasket interface gasket between the male and female part of a coupling 3.3 thread gasket flat faced gasket for thre
39、ads according to EN ISO 228-1 3.4 protection ring ring which protects the valve from hitting the ground or draggling on the ground 4 Fitting combinations Hose fittings with TW coupling: Female coupling (Type MKS) and male coupling (Type VKS). Usual fitting combination for the filling of the storage
40、tank: Female coupling (Type MK) and male coupling (Type VK). Usual fitting combination for closing off the outlet end of the TW: Female coupling (Type MK) and male dust coupling (Type VB). Usual fitting combination for closing off the filling nozzle or the storage tank: Female dust coupling (Type MB
41、) and male coupling (Type VK). 5 Dimensions, designations 5.1 Hose fittings with TW couplings 5.1.1 General A hose fitting with TW coupling for female coupling (type MKS) is shown in Figure 1. A hose fitting with TW coupling for male coupling (type VKS) is shown in Figure 2. A parts list for Figure
42、1 and Figure 2 is given in Table 1. DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 7 Dimensions in millimetres Figure 1 Hose fitting with TW coupling for female coupling (type MKS) Figure 2 Hose fitting with TW coupling for male coupling (type VKS) Table 1 Parts list Item No. Designation Requirements 1
43、Tension ring with levers according to 5.3.4.2 and 5.3.4.3 2 Main gasket according to 5.3.4.4 3 Hose tail type MKST according to 5.1.2 4 Clamp unit according to EN 14420-3 5 Hose tail type VKST according to 5.1.3 6 Protecting ring according to 5.1.4 Designation of a complete hose fitting shall be acc
44、ording to EN 14420-1. 5.1.2 Hose tail with female TW coupling Dimensions for a hose tail with female TW coupling (type MKST) are shown in Figure 3; values are given in Table 2. DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 8 Type MKST Key aCoupling side part of the tail; other dimensions and specificat
45、ions according to 5.3. bHose side part of the tail; dimensions according to EN 14420-2. Figure 3 Hose tail type MKST Table 2 Hose tail type MKST Dimensions in millimetres Nominal size DN For hose internal diameter l1l2l3Connection female TW coupling Hose connection min. max. 10+50 40 38 68 24 26 50
46、50 75 80 65 63 98 27 35 80 75 102 35 100 100 100 125 27 35,5 Example for an ordering designation of a complete hose tail with female TW coupling (type MKST) with nominal size DN 50 on coupling connection side and nominal size DN 40 on hose connecting side, made of copper-zinc alloy (CW614N): Hose ta
47、il EN 14420-6 MKST 50 40 CW614N 5.1.3 Hose tail with male TW coupling Dimensions for a hose tail with male TW coupling (type VKST) are shown in Figure 4; values are given in Table 3. DIN EN 14420-6:2013-09 EN 14420-6:2013 (E) 9 Type VKST Key aCoupling side part of the tail; other dimensions and spec
48、ifications according to 5.2. bHose side part of the tail; dimensions shall be according to EN 14420-2. Figure 4 Hose tail type VKST Table 3 Hose tail type VKST Dimensions in millimetres Nominal size DN For hose internal diameter d1l4l5l6l7Connection male TW coupling Hose connection Tolerances min. 0,5 min. max. 50 40 38 45 03,080 37,5 2,5 32 50 50 58 87 3 30 80 65 63 75 110,5 48 4 40 80 75 90 8,03,0+115 100 100 100 113 13,0+134,5 44,5 4 35 Example for an or
