1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 10284:2000 The Euro
2、pean Standard EN 10284:2000 has the status of a British Standard ICS 23.040.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Malleable cast iron fittings with compression ends for polyethylene (PE) piping systemsThis British Standard, having been prepared under the direction
3、 of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 07-2000 ISBN 0 580 35770 8 BS EN 10284:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the official
4、English language version of EN 10284:2000. The UK participation in its preparation was entrusted to Technical Committee ISE/19, Ferrous pipe fittings (excluding cast iron), which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquir
5、ies on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Briti
6、sh Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British
7、 Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front c
8、over, an inside front cover, the EN title page, pages 2 to 22, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 10284 March 2000 ICS 23.040.40 English version Ma
9、lleable cast iron fittings with compression ends for polyethylene (PE) piping systems Raccords en fonte mallable avec joints compression pour systmes de canalisation en polythylne (PE) Tempergufittings mit Klemmanschlssen fr Polyethylen (PE) Rohrleitungssysteme This European Standard was approved by
10、 CEN on 12 November 1999. 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. Uptodate lists and bibliographical references concerning s uch national stand
11、ards may be obtained on application to the Central Secretariat 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
12、the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Unite
13、d Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 10284:200
14、0 EPage 2 EN 10284:2000 BSI 072000 Contents Foreword. 3 Introduction 4 1 Scope. 5 2 Normative references . 5 3 Types of fittings6 4 Definitions. 6 5 Materials 7 6 Corrosion protection 8 7 Design 9 8 Performance requirements 11 9 Test requirements. 11 10 Assessment of conformity. 14 11 Designation of
15、 fittings 14 12 Marking 15 Annex A (informative) Examples of design. 16 Annex B (informative) Quality assurance system 21 Bibliography . 22Page 3 EN 10284:2000 BSI 072000 Foreword This European Standard has been prepared by Technical Committee ECISS/TC 29, Steel tubes and fittings for steel tubes, t
16、he Secretariat of which is held by UNI. 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 September 2000, and conflicting national standards shall be withdrawn at the latest by September 2000. This
17、standard includes the following annexes: Annex A (informative): Examples of design; Annex B (informative): Quality assurance system; Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
18、tandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 4 EN 10284:2000 BSI 072000 Introduction In respect of potential adverse effects on the qual
19、ity of water intended for human consumption, caused by the products covered by this 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 v
20、erifiable European criteria, existing national regulations concerning the use and/or the characteristics of these products remain in force.Page 5 EN 10284:2000 BSI 072000 1 Scope This standard specifies the requirements for the design, performance and testing of fittings made of malleable cast iron
21、(see also clause 5 Materials) with compression ends for polyethylene piping systems. It applies to piping systems in polyethylene (PE) materials for different application fields, such as water and gas supply, water distribution, irrigation and gaseous fuel systems. The malleable cast iron fittings s
22、pecified in this standard are of compression end type for the connection of PE pipes or of transition type with combined compression ends for pipes in different materials or with combined compression and threaded ends in conformance with prEN 10226-1. Their range of sizes covers nominal outside diam
23、eters of PE pipes d n16 to d n125 mm and pipe thread sizes 1/2 to 4. 2 Normative references This European standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are liste
24、d hereafter. For dated references, subsequent amendments to or revisions of any of publications apply to this European standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 681-1, Elastomeric seals - Mater
25、ial requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber. prEN 682, Elastomeric seals - Material requirements for joint seals used in pipes and fittings carrying gas and hydrocarbon fluids. EN 751-1, Sealing materials for metallic threaded joints in c
26、ontact with 1st, 2nd and 3rd family gases and hot water - Part 1: Anaerobic jointing compounds. EN 751-2, Sealing materials for metallic threaded joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 2: Non-hardening jointing compounds. EN 751-3, Sealing materials for metallic th
27、readed joints in contact with 1st, 2nd and 3rd family gases and hot water - Part 3: Unsintered PTFE tapes. prEN 1555-1, Plastics piping systems for gaseous fuels supply - Polyethylene (PE) - Part 1: General. prEN 1555-2, Plastics piping systems for gaseous fuels supply - Polyethylene (PE) - Part 2:
28、Pipes. prEN 1555-5, Plastics piping systems for gaseous fuels supply - Polyethylene (PE) - Part 5: Fitness for purpose of the system. EN 1562, Founding - Malleable cast irons. prEN 10226-1, Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel
29、 internal threads Dimensions, tolerances and designation. prEN 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. prEN 12201-1, Plastics piping systems for water supply Polyethyle
30、ne (PE) Part 1: General.Page 6 EN 10284:2000 BSI 072000 prEN 12201-2, Plastics piping systems for water supply - Polyethylene (PE) - Part 2: Pipes. prEN 12201-5, Plastics piping systems for water supply - Polyethylene (PE) - Part 5: Fitness for purpose of the system. EN 10204, Metallic products: Typ
31、es of inspection documents. ISO 228-1:1994, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Designation, dimensions and tolerances. ISO 10838-1 1),Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels Part 1: Metal fittings for pipes of no
32、minal outside diameter less than or equal to 63 mm. ISO 10838-2 1) , 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. 3 Types of fittings For types of fittings, see typical examples of
33、 design in Annex A (informative). 4 Definitions For the purpose of this standard the following definitions apply. 4.1 fitting connecting piece for pipes 4.2 transition fitting a fitting jointing different types of pipe and/or comprising different types of outlet 4.3 fitting size size designation of
34、the nominal outside diameter, d n , of the connecting PE pipe or of the size of the jointing thread 4.4 outlet end of a fitting which connects with a pipe by compression or with a threaded piping component 4.5 run two principal axially aligned outlets of a tee 4.6 branch side outlet of a tee1) To be
35、 published.Page 7 EN 10284:2000 BSI 072000 4.7 compression end an end of a fitting in which the joint is made by the compression of a ring or sleeve on the wall of the pipe to provide for pressure integrity, leaktightness and resistance to end loads 4.8 supporting sleeve (insert stiffener) cylindric
36、al ring providing a permanent support for the pipe to prevent creep in the pipe wall under radial compressive forces 4.9 grip ring ring that holds the pipes in place and prevents pull out from the joint NOTE In some cases, the supporting sleeve at the same time constitutes a grip ring. 4.10 minimum
37、bore smallest internal diameter measured at any cross-section of the assembled fitting 4.11 jointing thread thread complying with prEN 10226-1 or prEN 10226-2 4.12 fastening thread thread complying with ISO 228-1:1994 4.13 component test test to verify the performance of a fitting carried out on the
38、 fitting with or without the internal parts 4.14 jointing test test to verify the fitness for purpose of an assembled joint, including the fitting with the connecting pipes 5 Materials 5.1 Material of the fitting body 5.1.1 Malleable cast iron The material used for the fitting body shall be malleabl
39、e cast iron conforming to EN 1562. The grade of material used shall be selected from the following grades: Grade EN-GJMW-400-5 or EN-GJMW-350-4 for fittings in white heart malleable iron. Grade EN-GJMB-350-10 or EN-GJMB-300-6 for fittings in black heart malleable iron. Fittings shall be designated b
40、y material symbols according to the selected material mentioned above and as given in Table 1.Page 8 EN 10284:2000 BSI 072000 Table 1 - Material symbols Material symbol Material grade A EN-GJMW-400-5 or EN-GJMB-350-10 B EN-GJMW-350-4 or EN-GJMB-300-6 5.1.2 Other ferrous materials Notwithstanding thi
41、s requirement, any other ferrous materials, e.g. ductile cast iron, which give mechanical properties at least equivalent to those malleable cast irons specified above will be allowed. 5.2 Material of the fitting components Materials of the internal parts of the fittings in contact with PE pipe shall
42、 not adversely affect pipe performance, e.g. by initiation of stress cracking. If a lubricant (detergent, grease, etc) is used for assembling it shall have no detrimental effect on the properties of the pipe and shall not cause the assembly to fail the functional requirements. 5.3 Elastomers The mat
43、erial of elastomeric sealing rings used in fittings shall be chosen for drinking water application from EN 681-1 and for gas supply from prEN 682 depending on the specific application and shall conform to the appropriate class respectively type. 6 Corrosion protection 6.1 General In applications whe
44、re materials are susceptible to corrosion, the components shall be adequately protected. 6.2 Hot dip galvanizing Where a protection by zinc coating is required, the zinc coating shall be applied by the hot dip process and shall meet the following requirements. NOTE For fittings supplied in other fer
45、rous materials (see 5.1.2) alternative zinc coating may be provided by agreement with the purchaser. 6.2.1 Chemical composition of the zinc coating The content by mass of the accompanying elements in the finished zinc coating shall not exceed the following maximum values: antimony (Sb) 0,01 % arseni
46、c (As) 0,02 % bismuth (Bi) 0,01 %Page 9 EN 10284:2000 BSI 072000 cadmium (Cd) 0,01 % lead (Pb) 1,6 % in individual cases 1,8 % 6.2.2 Coating mass per surface unit The areic mass of the zinc coating shall be not less than 500 g/m 2 , as an average of 5 fittings. This corresponds to a medium layer thi
47、ckness of 70 m. It shall be not less than 450 g/m 2(63 m) when it is measured on an individual sample. The medium layer thickness s of the zinc coating in m may be calculated by using the approximation formula 7,2 A m s = where m Ais the surface related mass of the zinc coating, in g/m 2 . 6.2.3 Sur
48、face conditions of the zinc coating The zinc coating on the internal surface of the fitting shall be continuous with the exception of machined surfaces. In the special case of larger material crosssections the ironzinc alloy phases may grow through. The internal zinc coating shall be free from zinc
49、blisters, zinc burrs, non metallic remainders. 6.3 Non-metallic coating Depending on external and internal conditions of use, also nonmetallic coating may be used, for example plastic coatings, if they are accepted by the purchaser. 6.4 Dispatch conditions of finished fittings The surface of the fittings shall be free of polycyclic aromatic hydrocarbons. 7 Design 7.1 General The fitting shall be capable of field assembly to PE pipes complying with - prEN 122012 for drinking water distribution; and/or - prEN 15552 for g
