1、BSI Standards Publication BS EN 1555-3:2010+A1:2012 Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 3: FittingsBS EN 1555-3:2010+A1:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 1555-3:2010 The UK participation in its prep
2、aration was entrusted by Technical Committee PRI/88, Plastics piping systems, to Subcommittee PRI/88/2, Plastics piping for pressure applications. A list of organizations represented on this subcommittee can be obtained on request to its secretary. NOTE 1 There is no Part 6 in the EN 1555 series. In
3、stead users of BS EN 1555 should refer to EN 12007-2, Gas supply systems Pipelines for maximum operating pressure up to and including 16 bar Part 2: Specific functional recommendations for polyethylene (MOP up to and including 10 Bar). Users of this standard are also referred to the guidance issued
4、by National Grid, for example T/PR/ML/4 - Work procedure for pipe system construction. NOTE 2 Part 7 of the EN 1555 series has been prepared as a CEN/TS to allow fur ther development. CEN/TS 1555-7 is not mandatory under the Public Procurement Directives (2004/18/EC and 2004/17/EC). Users should be
5、aware of any appropriate safety precautions relating to pipework for combustable gas, such as the National Grid Gas document T/PR/ML/4, Work procedure for pipe system construction Module 4 PE main laying up to an including 630 mm diameter at pressures up to and including 2 bar. It is assumed in the
6、drafting of a standard that the execution of its provisions is entrusted to appropriately qualified and competent people. National Annex NA provides additional information on the selection and installation of piping systems and components in the UK. Attention is drawn to the following statutory regu
7、lation: Health 91.140.40 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2010. Amendments/corrigenda issued since publication Date Text affected It
8、supersedes BS EN 1555-3:2010, which is withdrawn. +A1:2012. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by . The
9、 British Standards Institution 2013. Published by BSI Standards Limited 2013 Implementation of CEN amendment A1:2012 31 August 2013 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1555-3:2010+A1 November 2012 ICS 23.040.45 Supersedes EN 1555-3:2010 English Version Plastics piping systems for th
10、e supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings Systmes de canalisations en plastique pour la distribution de combustibles gazeux - Polythylne (PE) - Partie 3 : Raccords Kunststoff-Rohrleitungssysteme fr die Gasversorgung - Polyethylen (PE) - Teil 3: Formstcke This European Standard
11、 was approved by CEN on 30 July 2010 and includes Amendment 1 approved by CEN on 4 September 2012. 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-t
12、o-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 transla
13、tion 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,
14、 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 C
15、OMIT 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 1555-3:2010+A1:2012: EEN 1555-3:2010+A1:2012 (E) 2 Contents Page
16、 Foreword 4 Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions, symbols and abbreviations .9 4 Material 10 4.1 PE Compound . 10 4.2 Material for non-polyethylene parts 10 4.2.1 General . 10 4.2.2 Metal parts . 10 4.2.3 Elastomers . 10 4.2.4 Other materials 10 5 General charac
17、teristics 11 5.1 Appearance . 11 5.2 Colour 11 5.3 Design 11 5.4 Appearance of factory made joints . 11 5.5 Electrical characteristics for electrofusion fittings . 11 6 Geometrical characteristics . 12 6.1 Measurement of dimensions . 12 6.2 Dimensions of electrofusion socket fittings 12 6.2.1 Diamet
18、ers and lengths of electrofusion sockets . 12 6.2.2 Wall thicknesses . 13 6.2.3 Out-of-roundness of the bore of a fitting (at any point) 14 6.2.4 Spigots . 14 6.2.5 Other dimensions . 14 6.3 Dimensions of electrofusion saddle fittings 14 6.4 Dimensions of spigot end fittings . 15 6.4.1 Diameters and
19、 lengths . 15 6.4.2 Wall thickness of the fusion end . 17 6.4.3 Wall thickness of the fitting body . 17 6.4.4 Other dimensions . 18 6.5 Dimensions of mechanical fittings . 18 6.5.1 General . 18 6.5.2 Mechanical fittings with polyethylene spigot ends . 18 6.5.3 Mechanical fittings with polyethylene e
20、lectrofusion sockets 18 6.5.4 Threads 18 7 Mechanical characteristics 18 7.1 General . 18 7.2 Requirements 19 7.3 Performance requirements 21 8 Physical characteristics . 21 8.1 Conditioning 21 8.2 Requirements 21 9 Performance requirements 22 10 Marking 22 10.1 General . 22 10.2 Minimum required ma
21、rking of fittings 22 BS EN 1555-3:2010+A1:2012EN 1555-3:2010+A1:2012 (E) 3 10.3 Additional marking 23 10.4 Fusion system recognition . 23 11 Delivery conditions . 23 Annex A (informative) Examples of typical terminal connection for electrofusion fittings 24 Annex B (normative) Short-term pressure te
22、st method . 26 B.1 Principle 26 B.2 Apparatus . 26 B.3 Test piece . 26 B.4 Procedure . 26 B.5 Test report 27 Annex C (normative) Tensile test for fitting/pipe assemblies 28 C.1 Principle 28 C.2 Apparatus . 28 C.3 Test piece . 28 C.4 Procedure . 28 C.5 Test report 28 Bibliography 30 BS EN 1555-3:2010
23、+A1:2012EN 1555-3:2010+A1:2012 (E) 4 Foreword This document (EN 1555-3:2010+A1:2012) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, ei
24、ther by publication of an identical text or by endorsement, at the latest by May 2013, and conflicting national standards shall be withdrawn at the latest by May 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 CEN
25、ELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 4 September 2012. This document supersedes !EN 1555-3:2010“. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. !D
26、ue to Amendment 1 to EN 1555-3:2010, this document comprises technical changes to: Subclause 7.2, Requirements; Subclause 10.2, Minimum required marking of fittings.“ EN 1555 consists of the following parts: EN 1555-1, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 1:
27、 General; EN 1555-2, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 2: Pipes; EN 1555-3, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 3: Fittings (this standard); prEN 1555-4, Plastics piping systems for the supply of gaseous fuels Po
28、lyethylene (PE) Part 4: Valves; EN 1555-5, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 5: Fitness for purpose of the system; CEN/TS 1555-7, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 7: Guidance for assessment of conformity. NOTE
29、 EN 12007-2:2000 1 prepared by CEN/TC 234 “Gas infrastructure” deals with the recommended practice for installation of plastics pipes system in accordance with EN 1555 (all parts). System Standards are based on the results of the work being undertaken in ISO/TC 138 “Plastics pipes, fittings and valv
30、es for the transport of fluids“, which is a Technical Committee of the International Organization for Standardization (ISO). They are supported by separate standards on test methods to which references are made throughout the System Standard. The System Standards are consistent with general standard
31、s on functional requirements and on recommended practice for installation. BS EN 1555-3:2010+A1:2012EN 1555-3:2010+A1:2012 (E) 5 According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria,
32、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, Sw
33、itzerland, Turkey and the United Kingdom. BS EN 1555-3:2010+A1:2012EN 1555-3:2010+A1:2012 (E) 6 Introduction The System Standard, of which this is Part 3, specifies the requirements for a piping system and its components made from polyethylene (PE) and which is intended to be used for the supply of
34、gaseous fuels. Requirements and test methods for material and components, other than fittings, are specified in EN 1555-1, EN 1555-2 and prEN 1555-4 9. Characteristics for fitness for purpose are covered in EN 1555-5. CEN/TS 1555-7 2 gives guidance for assessment of conformity. Recommended practice
35、for installation is given in EN 12007-2:2000 1 prepared by CEN/TC 234. This part of EN 1555 covers the characteristics of fittings. BS EN 1555-3:2010+A1:2012EN 1555-3:2010+A1:2012 (E) 7 1 Scope This !European Standard“ specifies the characteristics of fusion fittings made from polyethylene (PE) as w
36、ell as of mechanical fittings for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this standard. In conjunction with Parts 1, 2, 4 and 5 of EN 1555, it is applicable to PE fittings, their joints and to joints with
37、components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar 1) ; b) an operating temperature of 20 C as reference temperature. NOTE 1 For other operating temperatures, derating coefficients should be used;
38、see EN 1555-5. EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours and additives. NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirem
39、ents and any relevant national regulations and installation practices or codes. This European Standard is applicable for fittings of the following types: c) electrofusion socket fittings; d) electrofusion saddle fittings; e) spigot end fittings (for butt fusion using heated tools and electrofusion s
40、ocket fusion); f) mechanical fittings. The fittings can e.g. be in the form of couplers, equal and reduced tees, reducers, bends or caps. 2 Normative references !The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For d
41、ated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.“ EN 682:2002, Elastomeric Seals Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids EN 1555-1:2010, P
42、lastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 1: General EN 1555-2, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 2: Pipes EN 1555-5, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 5: Fitness for purpose
43、 of the system EN 1716, Plastics piping systems Polyethylene (PE) tapping tees Test method for impact resistance of an assembled tapping tee 1) 1 bar = 0,1 MPa. BS EN 1555-3:2010+A1:2012EN 1555-3:2010+A1:2012 (E) 8 EN 10226-1, Pipe threads where pressure tight joints are made on the threads Part 1:
44、Taper external threads and parallel internal threads Dimensions, tolerances and designation EN 10226-2, Pipe threads where pressure tight joints are made on the threads Part 2: Taper external threads and taper internal threads Dimensions, tolerances and designation EN 12117, Plastics piping systems
45、Fittings, valves and ancillaries Determination of gaseous flow rate/pressure drop relationships EN ISO 228-1:2000, Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) EN ISO 1133, Plastics Determination of the melt mass
46、-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:2005) EN ISO 1167-1:2006, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 1: General method (ISO 1167-1:2006) EN ISO 1167-4, Thermopla
47、stics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 4: Preparation of assemblies (ISO 1167-4:2007) EN ISO 3126, Plastics piping systems Plastics components Determination of dimensions (ISO 3126:2005) ISO 10838-1 2) , Mechanical
48、fittings for polyethylene piping systems for the supply of gaseous fuels Part 1: Metal fittings for pipes of nominal outside diameter less than or equal to 63 mm ISO 10838-2 2) , Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 2: Metal fittings for pipes of nominal outside diameter greater than 63 mm ISO 10838-3 2) , Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 3: Thermoplastic fittings for pipes of nominal outside diameter less than or equal to 63 mm ISO 11357-6:2008, Plastics Diffe
