1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12201-4:2012Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE)Part 4: V a l v e sBS EN 12201-4:2012 BRITISH STANDARDNa
2、tional forewordThis British Standard is the UK implementation of EN 12201-4:2012. It supersedes BS EN 12201-4:2001 and BS EN 13244-4:2002 which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/88/2, Plastics piping for pressure applications.A list of org
3、anizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited
4、2012ISBN 978 0 580 70905 0 ICS 23.060.01; 91.140.60 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2012.Amendments issued since publicationDate Text affe
5、ctedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12201-4 February 2012 ICS 23.060.01; 91.140.60 Supersedes EN 12201-4:2001, EN 13244-4:2002English Version Plastics piping systems for water supply, and for drainage and sewerage under pressure - Polyethylene (PE) - Part 4: Valves Systmes de ca
6、nalisations en plastique pour lalimentation en eau et pour les branchements et les collecteurs dassainissement avec pression - Polythylne (PE) - Partie 4: Robinets Kunststoff-Rohrleitungssysteme fr die Wasserversorgung und fr Entwsserungs- und Abwasserdruckleitungen - Polyethylen (PE) - Teil 4: Arma
7、turen This European Standard was approved by CEN on 16 December 2011. 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-to-date lists and bibliographi
8、cal 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 translation under the responsibility
9、 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, France, Germany, Greece, Hun
10、gary, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Managem
11、ent 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 12201-4:2012: EBS EN 12201-4:2012EN 12201-4:2012 (E) 2 Contents Page Foreword 3Introduction . 41 Scope 52 Normative references . 63
12、Terms and definitions, symbols and abbreviations 64 Material . 84.1 Compound 84.2 Material for non-polyethylene parts . 85 General characteristics 95.1 Appearance of the valve 95.2 Colour 95.3 Design . 95.4 Effect on water quality . 106 Geometric characteristics 106.1 General 106.2 Measurement of di
13、mensions 106.3 Dimensions of spigot ends for valves . 106.4 Dimensions of valves with electrofusion sockets 106.5 Dimensions of the operating device 107 Mechanical characteristics for assembled valves . 117.1 General 117.2 Requirements . 118 Physical characteristics . 158.1 Conditioning . 158.2 Requ
14、irements . 159 Performance requirements 1610 Marking. 1610.1 General 1610.2 Minimum required marking of valves 1710.3 Additional Marking . 1711 Delivery Conditions 17Annex A (normative) Determination of the leaktightness of seat and packing 18A.1 General 18A.2 Test method 18Bibliography 19BS EN 1220
15、1-4:2012EN 12201-4:2012 (E) 3 Foreword This document (EN 12201-4:2012) 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, either by public
16、ation of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. 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 sha
17、ll not be held responsible for identifying any or all such patent rights. This document supersedes EN 12201-4:2001, EN 13244-4:2002. System Standards are based on the results of the work being undertaken in ISO/TC 138 “Plastics pipes, fittings and valves for the transport of fluids“, which is a Tech
18、nical Committee of the International Organization for Standardization (ISO). EN 12201 consists of the following Parts, under the general title Plastics piping systems for water supply and for drainage and sewerage under pressure Polyethylene (PE): Part 1: General Part 2: Pipes Part 3: Fittings Part
19、4: Valves for water supply systems (this standard) Part 5: Fitness for purpose of the system Part 7: Guidance for the assessment of conformity (CEN/TS). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Euro
20、pean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turk
21、ey and the United Kingdom. BS EN 12201-4:2012EN 12201-4:2012 (E) 4 Introduction This European Standard, known as the System Standard, specifies the requirements for a piping system and its components when made from polyethylene (PE). The piping system is intended to be used for water supply intended
22、 for human consumption, including the conveyance of raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes. In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by
23、 EN 12201: a) this European Standard provides no information as to whether the products may be used without restriction in any of the Member States of the EU or EFTA; b) products intended for use in water supply systems must comply, when existing, with national regulations and testing arrangements t
24、hat ensure fitness for contact with drinking water. NOTE On April 2006, EC Commission set up a revised mandate (M/136) asking CEN to propose harmonised product standards and support standards for test methods which could be used for assessing the fitness for contact with drinking water. In parallel,
25、 EC Commission has launched processes for a regulation of construction products (CPR) to be substituted to CP directive (89/106/EC) and for the revision of drinking water directive (98/83/EC). If relevant, when the outputs of these processes will be known, European Product Standards will be amended
26、by the addition of an Annex Z under Mandate M/136 which will contain formal references to the applicable requirements. Until such amendments, the current national regulations remain applicable. Requirements and test methods for material and components, other than valves, are specified in EN 12201-1:
27、2011, EN 12201-2 and EN 12201-3:2011. Characteristics for fitness of purpose are covered in EN 12201-5. CEN/TS 12201-7 1 gives guidance for the assessment of conformity. This Part of EN 12201 covers the characteristics of valves. BS EN 12201-4:2012EN 12201-4:2012 (E) 5 1 Scope This Part of EN 12201
28、specifies the characteristics of valves or valve bodies made from polyethylene (PE 100 and PE 80) for buried and above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water
29、for other purposes. NOTE 1 For valves or valve bodies intended for drainage and sewerage under pressure, additional specifications/tests may be necessary according to the requirements of the purchaser, especially for the chemical resistance of the components in contact with the fluids and functionin
30、g characteristics. NOTE 2 For PE components intended for the conveyance of water for human consumption and raw water prior to treatment attention is drawn to 5.4. Components manufactured for water for other purposes may not be suitable for water supply for human consumption. It also specifies the te
31、st parameters for the test methods referred to in this European Standard. NOTE 3 Valves made from material other than polyethylene (PE) designed for the supply of water intended for human consumption to a relevant standard(s) can be used in PE piping systems conforming to EN 12201 when they have rel
32、evant PE connection for butt fusion or electrofusion ends (see EN 12201-3:2011). In conjunction with Parts 1, 2, 3 and 5 of EN 12201 it is applicable to PE valves, their joints and to joints with components of PE and other materials intended to be used under the following conditions: a) allowable op
33、erating pressure, PFA, up to 25 bar 1)b) an operating temperature of 20 C as a reference temperature; c) buried in the ground; d) sea outfalls; e) laid in water; f) above ground, including pipes suspended below bridges. NOTE 4 For applications operating at constant temperature greater than 20 C and
34、up to 40 C, see EN 12201-1:2011, Annex A. EN 12201 covers a range of allowable operating pressures and gives requirements concerning colours and additives. NOTE 5 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their p
35、articular requirements and any relevant national guidance or regulations and installation practices or codes. This Part of EN 12201 covers valves for pipes with a nominal outside diameter dn 315 mm. 1) 1 bar = 0,1 MPa = 105Pa; 1 MPa = 1 N/mm2. BS EN 12201-4:2012EN 12201-4:2012 (E) 6 2 Normative refe
36、rences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 681-1, Elastomeric seals Materials requ
37、irements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber EN 736-1:1995, Valves Terminology Part 1: Definition of types of valves EN 736-2:1997, Valves Terminology Part 2: Definition of components of valves EN 1680, Plastics piping systems Valves for polyethylen
38、e (PE) piping systems Test method for leaktightness under and after bending applied to the operating mechanisms EN 1705, Plastics piping systems Thermoplastics valves Test method for the integrity of a valve after an external blow EN 12100, Plastic piping systems Polyethylene (PE) valves Test method
39、 for resistance to bending between supports EN 12201-1:2011, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 1: General EN 12201-2, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) P
40、art 2: Pipes EN 12201-3:2011, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 3: Fittings EN 12201-5, Plastics piping systems for water supply, and for drainage and sewerage under pressure Polyethylene (PE) Part 5: Fitness for purpose of
41、the system EN 28233, Thermoplastic valves Torque Test method (ISO 8233) EN ISO 1133, Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133) EN ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Dete
42、rmination of the resistance to internal pressure Part 1: General method (ISO 1167-1) EN ISO 1167-4, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 4: Preparation of assemblies (ISO 1167-4) EN ISO 3126, Plastics pip
43、ing systems Plastics components Determination of dimensions (ISO 3126) ISO 10933, Polyethylene (PE) valves for gas distribution systems ISO 11357-6, Plastics Differential scanning calorimetry (DSC) Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature
44、 (dynamic OIT) 3 Terms and definitions, symbols and abbreviations For the purposes of this document, the terms and definitions, symbols and abbreviations given in EN 12201-1:2011, EN 736-1:1995, EN 736-2:1997 and the following apply. BS EN 12201-4:2012EN 12201-4:2012 (E) 7 3.1 external leaktightness
45、 leaktightness of the body enveloping the space containing the water, with respect to the atmosphere 3.2 internal leaktightness leaktightness between the inlet and the outlet of the valve, with the valve in the closed position 3.3 leaktightness test test for both of the following characteristics: a)
46、 the internal leaktightness of the valves closing seat when closed and pressurised from either side; b) the external leaktightness of the valve when half open 3.4 initiating torque torque required to initiate movement of the obturator 3.5 running torque torque required to achieve full opening or clo
47、sing of the valve at maximum allowable operating pressure 3.6 leakage seepage of water from the valve body, or any component of the valve 3.7 valve body main part of a valve which contains the obturating device (closing element, the seat, the packing seals and the operating stop), as applicable and
48、provides the terminal ends for connection to the PE pipe/fittings 3.8 operating device part of a valve for connection with the operating key which allows the opening and closing of the valve 3.9 Terms relating to design 3.9.1 full bore valve valve with a flow section equal to or greater than 80 % of
49、 the section corresponding to the nominal inside diameter of the body end port EN 736-3:20086 3.9.2 clearway valve valve designed to have an unobstructed flow way, which allows for the passage of a theoretical sphere with a diameter that is not less than the nominal inside diameter of the body end port EN 736-3:20086 3.9.3 reduced bore valve valve with a
