SIST EN 14420-1:2005+A1:2007
(Main)Hose fittings with clamp units - Part 1: Requirements, survey, designation and testing
Hose fittings with clamp units - Part 1: Requirements, survey, designation and testing
This document specifies requirements for hose fittings with clamp units for hoses made of rubber/plastics or thermoplastics preferably for use with flammable and non-flammable products. It contains requirements for hose fittings to ensure that, when used appropriately, the user or third persons are not exposed to hazards from fire, explosions or acid burns, for example from mineral oils or chemicals, and that the environment is protected from pollution and other detriments. The use of non-asbestos materials for gaskets in hose fittings is recommended in this series of standards. For maximum working pressure (WP) and temperature see 4.3.
Schlaucharmaturen mit Klemmfassungen - Teil 1: Anforderungen, Übersicht, Bezeichnung und Prüfung
Diese Europäische Norm legt die Anforderungen für Schlaucharmaturen mit Klemmfassungen für Schläuche aus Gummi/Kunststoff oder Thermoplast fest, die vorzugsweise für brennbare und nicht brennbare Produkte verwendet werden. Sie enthält Anforderungen an Schlaucharmaturen, um sicherzustellen, dass bei bestim¬mungsgemäßem Gebrauch Benutzer oder Dritte keinen Gefahren durch Brand, Explosionen oder Verätzungen, z. B. durch Mineralöle oder Chemikalien, ausgesetzt sind und die Umwelt vor Verunreinigungen und Beeinträchtigungen geschützt ist. In dieser Normenreihe wird für Dichtungen in Schlaucharmaturen die Verwendung asbestfreier Werkstoffe empfohlen.
Maximale Arbeitsdrücke und -temperaturen siehe !4.3".
Raccords pour flexibles avec demi-coquille - Partie 1: Exigences, présentation générale, désignation et essais
Le présent document prescrit les exigences applicables aux raccords pour flexibles avec demi-coquille, fabriqués en caoutchouc/plastique ou de préférence en thermoplastique, destinés a etre utilisés avec des produits inflammables ou ininflammables. Ces exigences applicables aux raccords pour flexibles permettent de s'assurer que, lorsqu'ils sont utilisés correctement, ils n'exposent pas l'utilisateur ou des tierces parties a des risques d'incendie, d'explosion ou de brulure par des acides dus par exemple a des huiles minérales ou a des produits chimiques et que l'environnement est protégé contre la pollution et autres effets préjudiciables. La présente série de normes recommande l'utilisation de matériaux sans amiante pour les joints utilisés dans les raccords pour flexibles.
Se reporter a !4.3" pour la pression de service (PS) et la température maximale.
Cevni fitingi z objemkami - 1. del: Zahteve, pregled, označevanje in preskušanje
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schlaucharmaturen mit Klemmfassungen - Teil 1: Anforderungen, Übersicht, Bezeichnung und PrüfungRaccords pour flexibles avec demi-coquille - Partie 1: Exigences, présentation générale, désignation et essaisHose fittings with clamp units - Part 1: Requirements, survey, designation and testing23.040.60Prirobnice, oglavki in spojni elementiFlanges, couplings and jointsICS:Ta slovenski standard je istoveten z:EN 14420-1:2004+A1:2007SIST EN 14420-1:2005+A1:2007en,fr,de01-september-2007SIST EN 14420-1:2005+A1:2007SLOVENSKI
STANDARD
SIST EN 14420-1:2005+A1:2007
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14420-1:2004+A1
January 2007 ICS 23.040.70 Supersedes EN 14420-1:2004English Version
Hose fittings with clamp units - Part 1: Requirements, survey, designation and testing
Raccords pour flexibles avec demi-coquille - Partie 1: Exigences, présentation générale, désignation et essais
Schlaucharmaturen mit Klemmfassungen - Teil 1: Anforderungen, Übersicht, Bezeichnung und Prüfung This European Standard was approved by CEN on 30 September 2004 and includes Amendment 1 approved by CEN on 13 December 2006.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14420-1:2004+A1:2007: ESIST EN 14420-1:2005+A1:2007
EN 14420-1:2004+A1:2007 (E) 2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Requirements.5 4.1 General.5 4.2 Resistance of the fitting materials to the medium.5 4.3 Permissible working pressures and temperatures.5 5 Survey.6 5.1 General.6 5.2 Types of fixing on hose side.7 5.3 Types of connection.8 5.3.1 Hose fittings with flange connection.8 5.3.2 Hose fittings with threaded connection.9 5.3.3 Hose fittings with quick coupling connection.10 6 Designation.13 7 Type approval testing and quality control.14 8 Mounting of hose fittings.14 9 Marking.14 Bibliography.16
SIST EN 14420-1:2005+A1:2007
EN 14420-1:2004+A1:2007 (E) 3 Foreword This document (EN 14420-1:2004+A1:2007) 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 July 2007, and conflicting national standards shall be withdrawn at the latest by July 2007. This document includes Amendment 1, approved by CEN on 2006-12-13. This document supersedes EN 14420-1:2004. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". EN 14420 consists at the time of publication of the following 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 clamp 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 — 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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 14420-1:2005+A1:2007
EN 14420-1:2004+A1:2007 (E) 4 1 Scope This document specifies requirements for hose fittings with clamp units for hoses made of rubber/plastics or thermoplastics preferably for use with flammable and non-flammable products. It contains requirements for hose fittings to ensure that, when used appropriately, the user or third persons are not exposed to hazards from fire, explosions or acid burns, for example from mineral oils or chemicals, and that the environment is protected from pollution and other detriments. The use of non-asbestos materials for gaskets in hose fittings is recommended in this series of standards. For maximum working pressure (WP) and temperature see !4.3". 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10204, Metallic products — Types of inspection documents EN 12115, Rubber and thermoplastics hoses and hose assemblies for liquid or gaseous chemicals — Specification 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 clamp 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 — Part 8: Symmetrical half coupling (Guil-lemin system) EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) 3 Terms and definitions For the purposes of this document, the following term and definition applies. 3.1 DN see EN ISO 6708
SIST EN 14420-1:2005+A1:2007
EN 14420-1:2004+A1:2007 (E) 5 4 Requirements 4.1 General Hose fittings shall withstand the mechanical, thermal and chemical stresses to be expected and shall be impermeable and resistant to flammable and non-flammable water-polluting fluids and their vapours except liquid natural gas and vapour. Hose fittings shall be designed so that they comply with the requirements of this standard when attached correctly and establish a frictional and positive-locking tight connection on the hose. Hose fittings together with the hoses shall be mounted in such manner, when specified in the hose product standard that any electrostatic charging is safely led off. The risk of sparking in explosion-endangered zones shall be excluded when hose assemblies are fastened or removed. This can be avoided by choice of adequate materials, e.g. stainless steel or copper-zinc alloys. Hose fittings shall be designed so that when using hoses !deleted text" the hose is destroyed first before being torn out from the fitting, if an overstress occurs. Only ductile metallic materials shall be used. Hose side fitting components shall not cause any dangerous notch or shear stresses on the hose. The clamp units shall be widened at the end in order to obtain a flexing zone and shall be approximately 10 % longer than the appropriate connection pieces to minimize shear stress to the hoses. Clamp units shall be attachable without special tools and be reusable. Clamp units shall be replaced in sets. The user and/or the purchaser shall select the type of connection and the material in consideration of the potential hazard caused by the medium and in view of the operating conditions. 4.2 Resistance of the fitting materials to the medium The user and/or the purchaser shall give consideration to the potential hazard caused by the medium and the operating conditions when selecting the type of connection. In individual cases, other concentrations and additions to the medium as well as increase of temperature can reduce the resistance of the metallic materials. In these cases details shall be agreed between purchaser and manufacturer. If data are not available, individual tests are necessary. The fitting components may be surface protected, e.g. nickel-plated, zinc-plated, chrome-plated or polymer coating. Details to be agreed between purchaser and manufacturer. The pairing of fittings from different material groups shall be avoided, if the presence of electrolytes is expected (contact corrosion). 4.3 Permissible working pressures and temperatures All hose fittings shall be capable of operating the working pressure range − 0,8 bar up to 25 bar !for EN 14420-2, EN 14420-3, EN 14420-4 and EN
14420-5 and 16 bar for EN 14420-6, EN 14420-7 and EN 14420-8 and in general for sizes DN 150 and DN 200". Unless otherwise specified, a working temperature range of − 20 °C to + 65 °C shall apply. NOTE Permiss
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