Hose fittings with clamp units - Part 7: Cam locking couplings

This European Standard specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. The couplings are capable of operating the pressure range -0,8 bar ) to 16 bar working pressure (for aluminium-cast-materials -0,8 bar to 10 bar) in a working temperature range of -20 °C up to +65 °C.

Schlaucharmaturen mit Klemmfassungen - Teil 7: Hebelarmkupplungen

Diese Europäische Norm legt die Konstruktion, Werkstoffe, Maße und Anforderungen zur Kennzeichnung für Hebelarmkupplungen fest, die der Verbindung von Schläuchen mit Anschlüssen zum Fördern von Flüssigkeiten, Feststoffen und Gasen, ausgenommen Flüssiggas und Dampf, dienen. Die Kupplungen müssen in einem Druckbereich von –0,8 bar ) bis 16 bar Arbeitsdruck (für Aluminium-Guss-Werkstoffe –0,8 bar bis 10 bar) in einem Arbeitstemperaturbereich von –20 °C bis 65 °C verwendet werden können.

Raccords pour flexibles avec demi-coquille - Partie 7: Raccords à cames

La présente Norme européenne spécifie la conception, les matériaux, les dimensions et le marquage des raccords à cames destinés à relier les tuyaux et les connexions pour le transport de liquides, de matières solides et de gaz, à l'exception des gaz liquéfiés et de la vapeur. Les raccords sont utilisables dans une plage de pression de service de 0,8 bar ) à 16 bar (pour les matériaux en fonte d’aluminium  0,8 bar à 10 bar) pour des températures de service de 20 °C à + 65 °C.

Cevni fitingi z objemkami - 7. del: Spojke z vzvodno ročico

Ta evropski standard določa načrtovanje, materiale, dimenzije in zahteve za označevanje za spojke z vzvodno ročico, ki povezujejo cevi in priključke za prevoz tekočin, trdnih snovi in plinov, razen tekočega plina in pare. Spojke opravljajo svojo nalogo pri delovnem tlaku od −0,8 bara1) do 16 barov (za materiale iz litega aluminija od −0,8 bara do 10 barov) pri delovni temperaturi od −20 °C do +65 °C.

General Information

Status
Withdrawn
Publication Date
09-Jul-2013
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
31-Aug-2022

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schlaucharmaturen mit Klemmfassungen - Teil 7: HebelarmkupplungenRaccords pour flexibles avec demi-coquille - Partie 7: Raccords à camesHose fittings with clamp units - Part 7: Cam locking couplings23.040.60Prirobnice, oglavki in spojni elementiFlanges, couplings and jointsICS:Ta slovenski standard je istoveten z:EN 14420-7:2013SIST EN 14420-7:2013en,fr,de01-september-2013SIST EN 14420-7:2013SLOVENSKI

STANDARDSIST EN 14420-7:2005+A1:20071DGRPHãþD
SIST EN 14420-7:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14420-7
July 2013 ICS 23.040.70 Supersedes EN 14420-7:2004+A1:2007English Version
Hose fittings with clamp units - Part 7: Cam locking couplings
Raccords pour flexibles avec demi-coquille - Partie 7: Raccords à cames

Schlaucharmaturen mit Klemmfassungen - Teil 7: Hebelarmkupplungen 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 alteration. 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 by 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, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 14420-7:2013: ESIST EN 14420-7:2013

EN 14420-7:2013 (E) 2 Contents Page Foreword ..............................................................................................................................................................3 Introduction .........................................................................................................................................................5 1 Scope ......................................................................................................................................................6 2 Normative references ............................................................................................................................6 3 Terms and definitions ...........................................................................................................................7 4 Requirements .........................................................................................................................................7 4.1 Construction ...........................................................................................................................................7 4.2 Temperatures .........................................................................................................................................7 5 Survey .....................................................................................................................................................8 6 Types of connection ........................................................................................................................... 10 7 Designation ......................................................................................................................................... 11 8 Dimensions .......................................................................................................................................... 11 8.1 General ................................................................................................................................................. 11 8.2 Coupler types ...................................................................................................................................... 11 8.3 Cam arm (item No. 2) .......................................................................................................................... 14 8.4 Pin (item No. 3) .................................................................................................................................... 17 8.5 Ring (item No. 4) ................................................................................................................................. 17 8.6 Main gasket (item No. 5) ..................................................................................................................... 18 8.7 Thread gasket (item No. 6) ................................................................................................................. 18 8.8 Adapter types ...................................................................................................................................... 18 9 Materials .............................................................................................................................................. 21 9.1 General ................................................................................................................................................. 21 9.2 Coupler and adapter body ................................................................................................................. 21 9.3 Cam arm (item No. 2) .......................................................................................................................... 22 9.4 Pin (item No. 3) .................................................................................................................................... 22 9.5 Ring (item No. 4) ................................................................................................................................. 22 9.6 Main gasket (item No. 5) ..................................................................................................................... 22 9.7 Thread gasket (item No. 6) ................................................................................................................. 22 10 Marking ................................................................................................................................................ 23 11 Type testing and quality control ....................................................................................................... 23 Annex A (normative)

Gauges for cam-locking couplings ............................................................................ 24 A.1 Dimensions and designation ............................................................................................................. 24 A.2 Material ................................................................................................................................................ 25 Bibliography ..................................................................................................................................................... 26

SIST EN 14420-7:2013

EN 14420-7:2013 (E) 3 Foreword This document (EN 14420-7:2013) 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 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 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 14420-7:2004+A1:2007. In comparison to EN 14420-7:2004+A1:2007, the following changes have been made:  In Clause 1, the maximum allowable working pressure when using aluminium-cast-materials has been limited to 10 bar.  In Clause 1, the warning paragraph has been deleted.  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).  In Table 3, the values for d2 and d7 have been corrected.  In 8.3, requirements regarding the cam arm have been amended, e.g. the prevention against self-acting opening.  In 9.2, the list of materials for coupler and adapter bodies has been revised.  The requirements on main gasket materials in 9.6 and thread gasket materials in 9.7 have been revised.  In Clause 10, the requirements for marking have been amended.  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 connection, designation and testing  Part 2: Hose side parts of hose tail  Part 3: Clamp units, bolted or pinned  Part 4: Flange connections SIST EN 14420-7:2013

EN 14420-7:2013 (E) 4  Part 5: Threaded connections  Part 6: TW tank truck couplings  Part 7: Cam locking couplings  Part 8: Symmetrical half coupling (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, Estonia, 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. SIST EN 14420-7:2013

EN 14420-7:2013 (E) 5 Introduction Cam locking couplings are manufactured worldwide according to the American "military specification" MIL-C-27487. This American standard fixes the coupling side in a limited way, but not the connection side. Other parts like levers, bolts, ring and gaskets are not standardized. SIST EN 14420-7:2013

EN 14420-7:2013 (E) 6 1 Scope This European Standard specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. The couplings are capable of operating the pressure range −0,8 bar1) to 16 bar working pressure (for aluminium-cast-materials −0,8 bar to 10 bar) in a working temperature range of −20 °C up to +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 undated references, the latest edition of the referenced document (including any amendments) applies. EN 755-2, Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — Part 2: Mechanical properties EN 1706, Aluminium and aluminium alloys — Castings — Chemical composition and mechanical properties EN 1982, Copper and copper alloys — Ingots and castings 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 10226-1, Pipe threads where pressure tight joints are made on the threads — Part 1: Taper external threads and parallel internal threads — Dimensions, tolerances and designation 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, Hose fittings with clamp units — Part 2: Hose side parts of hose tail EN 14420-5, Hose 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 indications (ISO 2768-2) EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1) EN ISO 8330:2008, Rubber and plastics hoses and hose assemblies — Vocabulary (ISO 8330:2007) ISO 272, Fasteners — Hexagon products — Widths across flats

1) 1 bar = 0,1 MPa. SIST EN 14420-7:2013

EN 14420-7:2013 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330:2008 and the following apply. 3.1 DN (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 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: 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] 3.2 PN alphanumeric designation used for reference purposes related to a combination of mechanical and dimensional characteristics of a component of a hose fitting Note 1 to entry: It comprises the letters PN followed by a dimensionless number. Note 2 to entry: The number following the letters PN does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard. 3.3 main gasket interface gasket between the male and female part of a coupling 3.4 thread gasket flat faced gasket for threads according to EN ISO 228-1 4 Requirements 4.1 Construction The curves of the lever and the adapters as well as the dimensions of the main gaskets shall be harmonised such that

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