1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1254-6:2012Copper and copper alloys Plumbing fittingsPart 6: Fittings with push-fit endsBS EN 1254-6:2012 BRITISH STANDARDNational forewordThis British Standard is the UK i
2、mplementation of EN 1254-6:2012.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 secretary.This publication does not purport t
3、o 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 69896 5ICS 23.040.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This
4、 British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate Text affectedBS EN 1254-6:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1254-6 October 2012 ICS 23.040.40 English Version Copper and
5、 copper alloys - Plumbing fittings - Part 6: Fittings with push-fit ends Cuivre et alliages de cuivre - Raccords - Partie 6: Raccords instantans Kupfer und Kupferlegierungen - Fittings - Teil 6: Einsteckfittings This European Standard was approved by CEN on 11 August 2012. CEN members are bound to c
6、omply 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-CENE
7、LEC 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
8、 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, Luxembo
9、urg, Malta, 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 2012 CEN Al
10、l rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1254-6:2012: EBS EN 1254-6:2012EN 1254-6:2012 (E) 2 Contents Page Foreword 5Introduction .61 Scope 72 Normative references 83 Terms and definitions .94 Requirements 104.1 General . 104.2 Ma
11、terials 104.2.1 General . 104.2.2 Reaction to fire 114.2.3 Resistance to high temperature (for heating networks) . 114.3 Dimensions and tolerances . 124.3.1 Minimum bore area . 124.3.2 Minimum bore area through fittings with an integral or separate internal support 124.3.3 Tolerance for the alignmen
12、t of the fitting ends . 144.4 Design and manufacture 144.4.1 Tube and pipe abutment 144.4.2 Surface condition 144.4.3 Plated or coated surfaces 145 Testing, assessment and sampling methods 145.1 Type testing . 145.1.1 General . 145.1.2 Preparation of fittings for testing 155.1.3 Test temperature . 1
13、55.1.4 Leaktightness under internal hydrostatic pressure 155.1.5 Resistance to pull-out 165.1.6 Temperature cycling . 165.1.7 Pressure cycling test 175.1.8 Vacuum test . 185.1.9 Vibration test (metallic tube only) . 185.1.10 Leaktightness under internal hydrostatic pressure while subjected to bendin
14、g (metallic tube only) . 185.1.11 Static bending test (plastics pipe only) 195.1.12 Disconnection and re-use (for fittings capable of being disconnected). 195.1.13 Rotation test 205.1.14 Resistance to stress corrosion . 205.2 Factory production control system 205.2.1 General . 205.2.2 Integrity of f
15、ittings bodies with as-cast microstructure or fabricated by welding or brazing 215.2.3 Resistance to dezincification 216 Evaluation of conformity 216.1 General . 216.2 Type testing . 216.2.1 General . 216.2.2 Requirements and characteristics 226.2.3 Use of historical data . 226.2.4 Further type test
16、ing 226.3 Sampling, testing and conformity criteria 226.3.1 Sampling 226.3.2 Testing and conformity criteria . 226.4 Factory production control (FPC) . 226.4.1 General . 226.4.2 Personnel . 23BS EN 1254-6:2012EN 1254-6:2012 (E) 3 6.4.3 Equipment 236.4.4 Raw materials and components 236.4.5 In-proces
17、s control . 236.4.6 Traceability and marking 236.4.7 Non-conforming products 236.4.8 Corrective action . 246.4.9 Handling, storage, packaging 247 Classification and designation 248 Marking . 248.1 General . 248.2 Dezincification resistant copper-zinc alloys. 259 Documentation 259.1 Declaration of co
18、nformity . 259.2 User instructions . 25Annex A (normative) Method for testing leaktightness of joints under internal hydrostatic pressure 26A.1 Introduction 26A.2 Principle 26A.3 Apparatus . 26A.4 Test piece . 26A.5 Procedure . 27Annex B (normative) Method for testing resistance to pull-out of joint
19、s with metallic tube 28B.1 Introduction 28B.2 Principle 28B.3 Apparatus . 28B.4 Test assembly 28B.5 Procedure . 28Annex C (normative) Test method for resistance of joints with metallic tube to temperature cycling 30C.1 Introduction 30C.2 Principle 30C.3 Apparatus . 30C.4 Test assembly 30C.5 Procedur
20、e . 31Annex D (normative) Method for testing the resistance of joints with metallic tube to pressure cycling 32D.1 Introduction 32D.2 Principle 32D.3 Apparatus . 32D.4 Test pieces . 33D.5 Procedure . 33Annex E (normative) Test method for leaktightness of joints with metallic tube under vacuum 34E.1
21、Introduction 34E.2 Principle 34E.3 Apparatus . 34E.4 Test piece . 35E.5 Procedure . 35Annex F (normative) Test method for the resistance of joints with metallic tube to vibration 36F.1 Introduction 36F.2 Principle 36F.3 Apparatus . 36F.4 Test assembly 36F.5 Procedure . 37BS EN 1254-6:2012EN 1254-6:2
22、012 (E) 4 Annex G (normative) Test method for leaktightness of joints with metallic tube under internal hydrostatic pressure while subjected to bending . 38G.1 Introduction . 38G.2 Principle . 38G.3 Apparatus 38G.4 Test piece 38G.5 Procedure 39Annex H (normative) Test method for disconnection and re
23、-use . 40H.1 Introduction . 40H.2 Principle . 40H.3 Apparatus 40H.4 Test assembly . 40H.5 Procedure 40Annex I (normative) Fitting rotation test 41I.1 Introduction . 41I.2 Principle . 41I.3 Apparatus 41I.4 Test assembly . 41I.5 Procedure 42Annex J (normative) Determination of resistance to stress cor
24、rosion 43J.1 Introduction . 43J.2 Test piece 43J.3 Procedure 43J.4 Test report . 43Annex K (normative) Pressure test for fittings bodies with as-cast microstructure or fabricated by welding or brazing 44K.1 Introduction . 44K.2 Principle . 44K.3 Apparatus 44K.4 Test piece 44K.5 Procedure 45Annex L (
25、normative) Determination of mean depth of dezincification . 46L.1 Introduction . 46L.2 Procedure 46L.3 Expression of results . 46Bibliography . 48BS EN 1254-6:2012EN 1254-6:2012 (E) 5 Foreword This document (EN 1254-6:2012) has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloy
26、s”, 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 conflicting national standards shall be withdrawn at the latest by April 2013. Attentio
27、n 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 its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 8 “Fittin
28、gs“ to prepare the following standard: EN 1254-6, Copper and copper alloys Plumbing fittings Part 6: Fittings with push-fit ends. EN 1254 comprises the following parts under the general title “Copper and copper alloys Plumbing fittings“: Part 1: Fittings with ends for capillary soldering or capillar
29、y 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: Fittings with threaded end connections Part 5: Fittings with short ends for capillary brazing to copper tubes Part 6: Fittings with pu
30、sh-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 subject of future work. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries ar
31、e 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, Po
32、rtugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1254-6:2012EN 1254-6:2012 (E) 6 Introduction Products complying with this document may be used for the transport of water for human consumption if they comply with the relevant national, regional or
33、 local regulatory provisions applicable in the place of use. This European Standard provides the basis for the assessment of a manufacturers production process for products manufactured in accordance with this European Standard. BS EN 1254-6:2012EN 1254-6:2012 (E) 7 1 Scope This European Standard sp
34、ecifies materials and test requirements for fittings of copper and copper alloys. This part of EN 1254 specifies push-fit end connections with or without plating or coating in the size range 6 mm to 54 mm for the purpose of joining tubes of copper, plated copper, multilayer pipes and plastics pipes,
35、 intended 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. Permissible operating temperatures and maximum operating pressures are also established. Fittings may comprise a combination of end
36、types, specified in this European Standard, EN 1254, or other standards, providing they are suitable for the fluid being conveyed. The standard establishes a designation system for the fittings. This European Standard is applicable to push-fit fittings for joining one or more of the following tubes
37、or pipes: Copper tubes to EN 1057; PE-X pipes to EN ISO 15875-2; PB pipes to EN ISO 15876-2; PP pipes to EN ISO 15874-2; PE-RT pipes to EN ISO 22391-2; Multilayer pipes to EN ISO 21003-2. Fittings may be suitable for joining other tubes and pipes provided the push-fit joint with the specified tube o
38、r pipe meets the requirements of this standard. Operating temperatures and pressures For joints with copper tubes It is essential that operating temperatures and maximum operating pressures for assembled joints do not exceed the values in Table 1. Table 1 Operating temperatures and pressures for fit
39、tings assembled to tubes Operating temperature Maximum operating pressure (MOP) for nominal diameters from 6 mm up to and including 54 mm C bar 30 1695 6 Intermediate pressure ratings are determined by linear interpolation. Certain designs of push-fit fittings are suitable for use at temperature/pre
40、ssure ratings outside those given in this table. For such applications, the advice of the manufacturer should be sought. To allow for system malfunctions, it is essential that fittings be capable of temporary excursions up to a temperature of 110 C at a pressure of 6 bar. BS EN 1254-6:2012EN 1254-6:
41、2012 (E) 8 For joints with multilayer and plastics pipes The operating temperatures and maximum operating pressures for the assembled joints should be determined in accordance with multilayer or plastics pipe material properties, details of which are specified in the relevant multilayer and plastics
42、 piping system standards. 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 doc
43、ument (including any amendments) applies. EN 681-1:1996, Elastomeric seals Materials requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanised rubber EN 712, Thermoplastics piping systems End-load bearing mechanical joints between pressure pipes and fittings Test m
44、ethod for resistance to pull-out under constant longitudinal force EN 713, Plastics piping systems Mechanical joints between fittings and polyolefin pressure pipes Test method for leaktightness under internal pressure of assemblies subjected to bending EN 1057, Copper and copper alloys Seamless, rou
45、nd copper tubes for water and gas in sanitary and heating applications 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, Copper and copper all
46、oys 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 EN 12293, Plastics piping systems Thermoplastics pipes and fittings for hot and cold water Test method for the resistance of mounted assem
47、blies to temperature cycling EN 12294, Plastics piping systems Systems for hot and cold water Test method for leaktightness under vacuum EN 12295, Plastics piping systems Thermoplastics pipes and associated fittings for hot and cold water Test method for resistance of joints to pressure cycling EN 1
48、2449, Copper and copper alloys Seamless, round tubes for general purposes EN ISO 6509:1995, Corrosion of metals and alloys Determination of dezincification resistance of brass (ISO 6509:1981) EN ISO 15874-21), Plastic piping systems for hot and cold water installations Polypropylene (PP) Part 2: Pipes (ISO 15874-2) EN ISO 15874-5 1), Plastic piping systems for hot and cold water installations Polypropylene (PP) Part 5: Fitness for purpose of the system (ISO 15874-5) 1)Currently under revision. BS EN 1254-6:2012EN 1254-
