1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1254-8:2012Copper and copper alloys Plumbing fittingsPart 8: Fittings with press ends for use withplastics and multilayer pipesBS EN 1254-8:2012 BRITISH STANDARDNational fo
2、rewordThis British Standard is the UK implementation of EN 1254-8:2012.The UK participation in its preparation was entrusted to TechnicalCommittee NFE/34/3, Copper and copper alloy fittings for tube andpipe.A list of organizations represented on this committee can beobtained on request to its secret
3、ary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 69897 2ICS 23.040.40Compliance with a British Standard cannot con
4、fer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate Text affectedBS EN 1254-8:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1254-8 October 2012 I
5、CS 23.040.40 English Version Copper and copper alloys - Plumbing fittings - Part 8: Fittings with press ends for use with plastics and multilayer pipes Cuivre et alliages de cuivre - Raccords - Partie 8: Raccords sertir pour tuyaux en plastique et tubes multicouches Kupfer und Kupferlegierungen - Fi
6、ttings - Teil 8: Pressfittings fr den Einsatz mit Kunststoff- und Mehrschichtverbundrohren This European Standard was approved by CEN on 11 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
7、us 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, Ge
8、rman). 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, Croat
9、ia, 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 Un
10、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1254-8:201
11、2: EBS EN 1254-8:2012EN 1254-8:2012 (E) 2 Contents Page Foreword 4Introduction .51 Scope 62 Normative references 63 Terms and definitions .74 Requirements .84.1 General 84.2 Materials .84.2.1 General 84.2.2 Reaction to fire 104.2.3 Resistance to high temperature (for heating networks) . 104.3 Dimens
12、ions and tolerances . 114.3.1 Minimum bore area . 114.3.2 Minimum bore area through an internal support 114.3.3 Tolerance for the alignment of the fitting ends . 134.4 Design and manufacture 134.4.1 Press fittings . 134.4.2 Pipe abutment . 134.4.3 Surface condition 134.4.4 Plated or coated surfaces
13、135 Testing, assessment and sampling methods 135.1 Type testing . 135.1.1 General . 135.1.2 Gas application . 145.1.3 Preparation of fittings for testing 145.1.4 Test temperature . 145.2 Resistance to stress corrosion . 145.3 Factory production control system 155.3.1 General . 155.3.2 Integrity of f
14、ittings bodies with as-cast microstructure or fabricated by welding or brazing 155.3.3 Resistance to dezincification 156 Evaluation of conformity 166.1 General . 166.2 Type testing . 166.2.1 General . 166.2.2 Requirements and characteristics 166.2.3 Use of historical data . 166.2.4 Further type test
15、ing 166.3 Sampling, testing and conformity criteria 176.3.1 Sampling 176.3.2 Testing and conformity criteria . 176.4 Factory production control (FPC) . 176.4.1 General . 176.4.2 Personnel . 176.4.3 Equipment . 186.4.4 Raw materials and components 186.4.5 In-process control. 186.4.6 Traceability and
16、marking . 186.4.7 Non-conforming products . 186.4.8 Corrective action. 186.4.9 Handling, storage, packaging 187 Classification and designation 18BS EN 1254-8:2012EN 1254-8:2012 (E) 3 8 Marking . 198.1 General . 198.2 Dezincification resistant copper-zinc alloys. 199 Documentation 199.1 Declaration o
17、f conformity . 199.2 User instructions . 19Annex A (normative) Resistance to stress corrosion . 20A.1 Introduction 20A.2 Test piece . 20A.3 Procedure . 20A.4 Test report 20Annex B (normative) Pressure test for fitting bodies with as cast microstructure or fabricated by welding or brazing . 21B.1 Int
18、roduction 21B.2 Principle 21B.3 Apparatus . 21B.4 Test piece . 21B.5 Procedure . 22Annex C (normative) Determination of mean depth of dezincification . 23C.1 Introduction 23C.2 Procedure . 23C.3 Expression of results 23Bibliography 24BS EN 1254-8:2012EN 1254-8:2012 (E) 4 Foreword This document (EN 1
19、254-8:2012) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys”, the secretariat of which is held by DIN. 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 2013, and
20、 conflicting national standards shall be withdrawn at the latest by April 2013. 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. Within
21、 its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 8 “Fittings“ to prepare the following European Standard: EN 1254-8, Copper and copper alloys Plumbing fittings Part 8: Fittings with press ends for use with plastics and multilayer pipes EN 1254 comprises the following pa
22、rts under the general title “Copper and copper alloys Plumbing fittings“: Part 1: Fittings with ends for capillary soldering or capillary brazing to copper tubes Part 2: Fittings with compression ends for use with copper tubes Part 3: Fittings with compression ends for use with plastics pipes Part 4
23、: Fittings with threaded end connections Part 5: Fittings with short ends for capillary brazing to copper tubes Part 6: Fittings with push-fit ends Part 7: Fittings with press ends for metallic tubes Part 8: Fittings with press ends for use with plastics and multilayer pipes Part 7 will be the subje
24、ct of future work. 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 Mac
25、edonia, 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. BS EN 1254-8:2012EN 1254-8:2012 (E) 5 Introduction Products complyin
26、g with this document may be used for the transport of water for human consumption if they comply with the relevant national, regional or local regulatory provisions applicable in the place of use. This European Standard provides the basis for the assessment of a manufacturers production process for
27、products manufactured in accordance with this European Standard. BS EN 1254-8:2012EN 1254-8:2012 (E) 6 1 Scope This European Standard specifies materials and test requirements for fittings of copper and copper alloys. This part of EN 1254 specifies press end connections with or without plating or co
28、ating in the size range 10 mm to 110 mm for the purpose of joining plastics and multilayer pipes for use in hot and cold water systems according to EN 806, which are designed for service lifetime up to fifty years, as well as heating and cooling systems or gas systems, including fuel gas systems. Fi
29、ttings may comprise a combination of end types, specified in this European Standard, EN 1254, or other standards, providing they are suitable for the fluid / gas being conveyed. The European Standard establishes a designation system for the fittings. This European Standard is applicable to press fit
30、tings for joining the following plastics and multilayer pipes: EN ISO 15874, Plastics piping systems for hot and cold water installations Polypropylene (PP); EN ISO 15875, Plastics piping systems for hot and cold water installations Crosslinked polyethylene (PE-X); EN ISO 15876, Plastics piping syst
31、ems for hot and cold water installations Polybutylene (PB); EN ISO 15877, Plastics piping systems for hot and cold water installations Chlorinated poly (vinyl chloride) (PVC-C); EN ISO 21003, Multilayer piping systems for hot and cold water installations inside buildings; EN ISO 22391, Plastics pipi
32、ng systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT); ISO 17484, Plastics piping systems Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa). Fittings may be suitable for joining o
33、ther pipes provided the fitting joint with the specified pipe meets the requirements of this European Standard and the relevant pipe standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. F
34、or dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 549:1994, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 681-1:1996, Elastomeric seals Materials requir
35、ements for pipe joint seals used in water and drainage applications Part 1: Vulcanised rubber EN 1254-4, Copper and copper alloys Plumbing fittings Part 4: Fittings combining other end connections with capillary or compression ends EN 1655, Copper and copper alloys Declarations of conformity EN 1982
36、, Copper and copper alloys Ingots and castings EN 12164, Copper and copper alloys Rod for free machining purposes EN 12165, Copper and copper alloys Wrought and unwrought forging stock BS EN 1254-8:2012EN 1254-8:2012 (E) 7 EN 12449, Copper and copper alloys Seamless, round tubes for general purposes
37、 EN ISO 6509:1995, Corrosion of metals and alloys Determination of dezincification resistance of brass (ISO 6509:1981) EN ISO 15874, Plastics piping systems for hot and cold water installations Polypropylene (PP) EN ISO 15875, Plastics piping systems for hot and cold water Crosslinked polyethylene (
38、PE-X) EN ISO 15876, Plastics piping systems for hot and cold water installations Polybutylene (PB) EN ISO 15877, Plastics piping systems for hot and cold water installations Chlorinated poly (vinyl chloride) (PVC-C) EN ISO 21003, Multilayer piping systems for hot and cold water installations inside
39、buildings EN ISO 22391, Plastics piping systems for hot and cold water installations Polyethylene of raised temperature resistance (PE-RT) ISO 815-1, Rubber, vulcanized or thermoplastic Determination of compression set Part 1: At ambient or elevated temperatures ISO 6957:1988, Copper alloys Ammonia
40、test for stress corrosion resistance ISO 9924-1, Rubber and rubber products Determination of the composition of vulcanizates and uncured compounds by thermogravimetry Part 1: Butadiene, ethylene-propylene copolymer and terpolymer, isobutene-isoprene, isoprene and styrene-butadiene rubbers ISO 17484-
41、1:2006, Plastics piping systems Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa) Part 1: Specifications for systems 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 plum
42、bing fitting device used in a tube system for the purpose of connecting the tubes either to each other or to a component part of the system 3.2 press end end which may incorporate a sealing element and in which the joint is effected by radial compression of the ends of the fitting and the tube with
43、a pressing tool Note 1 to entry: Some designs may incorporate an additional device to aid retention. Note 2 to entry: Compression of the ends of the fitting and the tube can be achieved directly or indirectly by radial compression. 3.3 adaptor fitting fitting combining more than one type of end Note
44、 1 to entry: For details of other ends, see the relevant parts of this European Standard or other standards. BS EN 1254-8:2012EN 1254-8:2012 (E) 8 3.4 nominal diameter nominal diameter of the fitting end expressed as the nominal outside diameter of the connecting tube 3.5 supporting sleeve insert st
45、iffener device permanently inserted in the tube end to provide internal support for low strength tube or pipe materials 3.6 durably marked marked in such a way that the marking will remain readable at least up to the time of commissioning of the installation Note 1 to entry: e.g. by ink marking. 3.7
46、 permanently marked marked in such a way that the marking will remain readable up to the end of the life of the installation Note 1 to entry: e.g. by stamping, etching or engraving. 3.8 type test test or series of tests aimed at approving a product to determine that the element designed is able to f
47、ulfil the requirements of the product specification 4 Requirements 4.1 General Fittings, including reducers, shall conform to the requirements of 4.2 to 4.4. Details of applications and classes of service conditions are specified in the relevant plastics piping systems standards. 4.2 Materials 4.2.1
48、 General Fittings bodies shall be made from copper or copper alloys selected from materials specified in European Standards for copper and copper alloy products, provided that the fittings manufactured from them meet the functional requirements of this European Standard. BS EN 1254-8:2012EN 1254-8:2
49、012 (E) 9 NOTE Some of the standardised coppers and copper alloys commonly used for the manufacture of fittings are shown in Table 1. Table 1 Examples of commonly used materials Material designation Standard Symbol Number Cu-DHP CW024A EN 12449 CuSn5Zn5Pb5-C CC491K EN 1982 CuZn36Pb2As CW602N EN 12164 CuZn39Pb3 CW614N EN 12164 CuZn40Pb2 CW617N EN 12165 C
