1、December 2014Translation by DIN-Sprachendienst.English price group 12No 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).IC
2、S 23.040.10; 23.040.40; 25.220.60!%O,“2274409www.din.deDDIN EN 14901Ductile iron pipes, fittings and accessories Epoxy coating (heavy duty) of ductile iron fittings and accessories Requirements and test methods;English version EN 14901:2014,English translation of DIN EN 14901:2014-12Rohre, Formstcke
3、 und Zubehr aus duktilem Gusseisen Epoxidharzbeschichtung (fr erhhte Beanspruchung) von Formstcken undZubehrteilen aus duktilem Gusseisen Anforderungen und Prfverfahren;Englische Fassung EN 14901:2014,Englische bersetzung von DIN EN 14901:2014-12Tuyaux, raccords et accessoires en fonte ductile Revte
4、ment poxy (renforc) des raccords et accessoires en fonte ductile Prescriptions et mthodes dessai;Version anglaise EN 14901:2014,Traduction anglaise de DIN EN 14901:2014-12SupersedesDIN EN 14901:2006-08www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Docume
5、nt comprises 20 pages11.14 2 A comma is used as the decimal marker. National foreword This document (EN 14901:2014) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes, fittings and their joints” (Secretariat: AFNOR, France). The responsible German body involved in its preparation w
6、as the DIN-Normenausschuss Rohrleitungen und Dampfkesselanlagen (DIN Standards Committee Piping and Boiler Plant), Working Committee NA 082-00-05 AA Gusseiserne Rohre und Formstcke. Amendments This standard differs from DIN EN 14901:2006-08 as follows: a) normative references have been updated; b) r
7、eferences to the European Acceptance Scheme (EAS) have been replaced by references to national technical rules and standards; c) former Subclause 7.1.4: requirements for the coating thickness over a dispersed area of the test item have been deleted; d) the Bibliography has been updated; e) the stand
8、ard has been editorially revised. Previous editions DIN EN 14901: 2006-08 DIN EN 14901:2014-12 EN 14901October 2014 ICS 23.040.10; 23.040.40; 25.220.60 Supersedes EN 14901:2006English Version Ductile iron pipes, fittings and accessories - Epoxy coating (heavy duty) of ductile iron fittings and acces
9、sories - Requirements and test methods Tuyaux, raccords et accessoires en fonte ductile - Revtement poxy (renforc) des raccords et accessoires en fonte ductile - Prescriptions et mthodes dessai Rohre, Formstcke und Zubehr aus duktilem Gusseisen - Epoxidharzbeschichtung (fr erhhte Beanspruchung) von
10、Formstcken und Zubehrteilen aus duktilem Gusseisen - Anforderungen und Prfverfahren This European Standard was approved by CEN on 28 August 2014. 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
11、 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).
12、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, Cyp
13、rus, 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 Ki
14、ngdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14901:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NOR
15、MUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14901:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Ordering information .8 5 Technical Requirements .9 5.1 General 9 5.2 Surface preparation .9 5.3 Appearance and continuity .
16、9 5.4 Adhesion .9 5.5 Coating thickness 9 5.6 Cross linkage .9 5.7 Repairs . 10 5.8 Marking 10 6 Performance requirements 10 6.1 General . 10 6.2 Impact resistance 10 6.3 Indentation resistance 10 6.4 Non porosity 10 6.5 Cross linkage 10 6.6 Durability . 11 6.6.1 General . 11 6.6.2 Heat ageing resis
17、tance in air . 11 6.6.3 Heat ageing resistance in water 11 6.7 Chemical resistance (only for sewage application) 11 6.8 Abrasion resistance (only for sewage application) . 11 6.9 Materials in contact with water intended for human consumption . 11 7 Test Methods . 11 7.1 Routine tests . 11 7.1.1 Gene
18、ral . 11 7.1.2 Surface preparation 11 7.1.3 Appearance and continuity 11 7.1.4 Adhesion 11 7.1.5 Coating thickness . 12 7.1.6 Cross linkage 12 7.2 Performance tests. 12 7.2.1 General . 12 7.2.2 Impact resistance 12 7.2.3 Indentation resistance 12 7.2.4 Non porosity 13 7.2.5 Durability . 13 Annex A (
19、informative) Quality assurance 14 A.1 General . 14 A.2 Performance type test, fitting and accessory size grouping . 15 DIN EN 14901:2014-12EN 14901:2014 (E) 3 A.3 Quality assessment system . 15 Annex B (informative) Coating materials and application 16 B.1 General . 16 B.2 Coating application . 16 A
20、nnex C (informative) Handling, transportation and storage . 17 C.1 Handling . 17 C.2 Transportation to storage areas 17 C.3 Storage . 17 C.4 Loading of fittings and accessories for delivery . 17 Bibliography 18 DIN EN 14901:2014-12EN 14901:2014 (E) 4 Foreword This document (EN 14901:2014) has been p
21、repared by Technical Committee CEN/TC 203 “Cast iron pipes, fittings and their joints”, the secretariat of which is held by AFNOR. 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 April 2015 and co
22、nflicting national standards shall be withdrawn at the latest by April 2015. 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 docu
23、ment supersedes EN 14901:2006. In comparison with EN 14901:2006, the following changes have been made: correction of several typing errors, wrong units etc.; actualized dates of referenced standards; clearer description of the coating thickness test method (7.1.5); attribution of performance require
24、ments “chemical resistance” and “abrasion resistance” to coatings in sewer applications (Lines 8 and 9 of Table A.1); actualization of the requirement “fitness for contact with potable water” according to the present status (line 10 of Table A.1); correction of overlapping nominal sizes at DN groupi
25、ng (Table A.3). 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedo
26、nia, 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 14901:2014-12EN 14901:2014 (E) 5 Introduction This European Stan
27、dard is in conformity with the general requirements already established by CEN/TC 164 in the field of water supply (e.g. potable water), CEN/TC 165 in the field of wastewater and CEN/TC 234 in the field of gas distribution. In respect of potential adverse effects on the quality of water intended for
28、 human consumption caused by the product covered by this European Standard: 1) this standard provides no information as to whether the product may be used without restriction in any of the member states of the EU or EFTA; 2) it should be noted that, while awaiting the adoption of verifiable European
29、 criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. DIN EN 14901:2014-12EN 14901:2014 (E) 6 1 Scope This European Standard defines the requirements and test methods for factory applied epoxy coatings (fusion bonded powder or liquid
30、two-pack) used for the corrosion protection of ductile iron fittings and accessories conforming to EN 545, EN 598, EN 969, EN 12842, EN 14525, for: conveying water (e.g. potable water) at operating temperature up to 50 C excluding frost; or conveying waste water at operating temperature up to 45 C e
31、xcluding frost; or conveying gas at operating temperature up to 50 C; suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in EN 545:2010, D.2.3. 2 Normative references The following documents, in whole or in part, are normatively refere
32、nced 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 545:2010, Ductile iron pipes, fittings, accessories and their joints for
33、 water pipelines - Requirements and test methods EN 598, Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements and test methods EN 805, Water supply - Requirements for systems and components outside buildings EN 969, Ductile iron pipes, fittings, accesso
34、ries and their joints for gas pipelines - Requirements and test methods EN 12842, Ductile iron fittings for PVC-U or PE piping systems - Requirements and test methods EN 14525, Ductile iron wide tolerance couplings and flange adaptors for use with pipes of different materials: ductile iron, Grey iro
35、n, Steel, PVC-U PE, Fibre-cement EN ISO 4624, Paints and varnishes - Pull-off test for adhesion (ISO 4624) EN ISO 8501-1, Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoa
36、ted steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 accessory any casting other than a pipe or fitting which is used in a pipeline: inspection ch
37、ambers; manholes; glands for mechanical flexible joints; DIN EN 14901:2014-12EN 14901:2014 (E) 7 glands and locking rings for restrained flexible joints; pipe saddles for house connection; adjustable flanges Note 1 to entry: Valves of all types are not covered by the term “accessory“. 3.2 adhesion f
38、orce per unit area, applied perpendicular to the surface, which is necessary to separate the coating from its substrate 3.3 cross linkage chemical reaction between epoxy resin and hardener to form the final coating 3.4 ductile iron cast iron used for pipes, fittings and accessories in which graphite
39、 is present substantially in spheroidal form 3.5 fitting casting other than a pipe or accessory which allows pipeline deviation, change of direction or bore Note 1 to entry: Flanged-socket pieces, flanged spigot pieces and collars are also classified as fittings. 3.6 impact strength impact energy wh
40、ich a coating can withstand without damage under specific test conditions 3.7 indentation resistance resistance of the coating to the penetration of a punch under defined test conditions 3.8 non porosity absence of electrical puncture in a high voltage test under defined test conditions 3.9 epoxy co
41、ating factory applied coating with pure epoxy as a binder such as: fusion bonded epoxy powder (P) applied by (electrostatic) spraying or dipping in fluidized bed on preheated parts; two-pack liquid epoxy (L) consisting of a base and a catalyst component which is mixed together in the proportion spec
42、ified by the manufacturer before use 3.10 chalking superficial reaction of epoxy coatings influenced by UV-radiation Note 1 to entry: The process is stopped by the reaction products at a depth of 2 m to 5 m, combined with a loss of brilliance. There are no adverse influences on the protection proper
43、ties. DIN EN 14901:2014-12EN 14901:2014 (E) 8 3.11 performance test test which is done once and is repeated only after change of coating material supplier, coating material or relevant change in process application 3.12 routine test test carried out to control the manufacturing process with a freque
44、ncy defined by the manufacturer of the coated ductile iron component 3.13 designated zones areas of a casting where because of jointing tolerance restrictions, testing difficulties, or shrouding by a gasket, etc. a lower standard of coating performance is unavoidable Note 1 to entry: For the purpose
45、 of this standard, these areas are defined as: joint areas; bolt holes; permitted markings; ribs; edges. Note 2 to entry: Where considered necessary, these zones may be protected by appropriate additional corrosion protection measures during or after installation. However, such measures are not part
46、 of this standard. 3.14 average thickness arithmetic mean of all thickness measurements taken on one coated item 3.15 localized thickness measured thickness at any one point of one coated item 4 Ordering information The following information shall be supplied to the manufacturer by the purchaser: Du
47、ctile iron fittings and accessories according to EN 545, EN 598, EN 969, EN 12842 or EN 14525 but coated in accordance with this European Standard shall be specified in the purchasers enquiry and order by reference to this standard: EXAMPLE 10 pieces of ductile iron fitting DN 300 according to EN 54
48、5 with external and internal coating according to EN 14901. The purchaser shall stipulate the scope of application. DIN EN 14901:2014-12EN 14901:2014 (E) 9 5 Technical Requirements 5.1 General The following is applicable: 5.2 Surface preparation Prior to the coating process, the surface to be coated
49、 shall be substantially clean and free of oil, grease and moisture. The surface to be coated shall comply at least with the level Sa 2 of EN ISO 8501-1 (see 7.1.2). Blasted fittings and accessories shall only be handled with appropriate tools to prevent surface contamination. 5.3 Appearance and continuity The epoxy coating of the final product shall be of: uniform colour, except for permitted marking; uniform appeara
