1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12569:1999 Incorpor
2、ating Corrigenda Nos. 1 and 2 The European Standard EN 12569:1999 has the status of a British Standard ICS 23.060.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Industrial valves Valves for chemical and petrochemical process industry Requirements and testsThis British Stan
3、dard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 December 1999 BSI 06-2001 ISBN 0 580 35420 2 BS EN 12569:1999 Amendments issued since publication Amd. No. Date Comments 10959
4、Corrigendum No. 1 September 2000 Table 1 amended 13061 Corrigendum No. 2 June 2001 Table 1 amended National foreword This British Standard is the English language version of EN 12569:1999, including corrigendum December 1999 and corrigendum November 2000. The UK participation in its preparation was
5、entrusted by Technical Committee PSE/7, Valves, to Subcommittee PSE/7/12, Valves for process industry, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK in
6、terests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
7、 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 Standard does not purport to include all the necessary provisions
8、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 cover, an inside front cover, the EN title page, pages 2 to 16, an i
9、nside 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 12569 September 1999 ICS 23.060.01 Incorporating corrigendum December 1999 and corrigendum November 2000 English ver
10、sion Industrial valves - Valves for chemical and petrochemical process industry - Requirements and tests Robinetterie industrielle - Appareils de robinetterie destins aux procds de lindustrie chimique et ptrochimique - Prescriptions et essais Industriearmaturen - Armaturen fr die chemische und petro
11、chemische Verfahrensindustrie Anforderungen und Prfungen This European Standard was approved by CEN on 16 August 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
12、any alteration. Up-to-date lists and bibliographical references concerning such national standards 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
13、by translation under the responsibility of a CEN member into its own language and notified to 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, I
14、reland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 1999 CEN All rights of exploitation i
15、n any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12569:1999 EPage 2 EN 12569:1999 BSI 06-2001 Contents Page Foreword 3 Introduction 3 1 Scope 4 2 Normative references 4 3 Definitions 5 4 Requirements 5 4.1 General 5 4.2 Quality assurance 6 4.3 Design 6 4.4 Materia
16、ls 8 4.5 Welding to parts of valves 9 4.6 Surface finish 11 5 Testing and inspection 11 5.1 Non-destructive examination of steel castings 11 5.2 Testing and inspection of every valve 11 5.3 Random testing 14 6 Marking 14 7 Preparation for shipment 15 8 Technical documentation 15 Annex A (informative
17、) Explanations for acceptance criteria 16Page 3 EN 12569:1999 BSI 06-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 69 “Industrial valves“, the Secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either
18、 by publication of an identical text or by endorsement, at the latest by March 2000, and conflicting national standards shall be withdrawn at the latest by March 2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impl
19、ement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Introduction This European Standard is based on the experience of the chem
20、ical and petrochemical industry and provides requirements additional to those found in valve product standards. The user of the standard is free to decide to which valves it applies.Page 4 EN 12569:1999 BSI 06-2001 1 Scope This European Standard applies to valves of DN15 and greater, made of metalli
21、c materials for chemical and petrochemical plants. It contains additional requirements to those contained in the relevant European product standards. Two levels of quality are included. All valves shall meet the requirements of level I. Valves shall meet the requirements of level II only when requir
22、ed by the order. NOTE: It is assumed that the essential safety requirements of the PED (satisfied by European product standards) and safety requirements from other standards are satisfied. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from othe
23、r publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or
24、revision. For undated references, the latest edition of the publication referred to applies. EN 19 Marking of general purpose industrial valves EN 287-1 Approval testing of welders - Fusion welding - Part 1: Steels EN 288-1 Specification and qualification of welding procedures for metallic materials
25、 - Part 1: General rules for fusion welding EN 736-3 Valves - Terminology - Part 3: Definition of terms prEN 1092 1:1997 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges EN 1092 2:1997 Flanges and their joints - Circular f
26、langes for pipes, valves, fittings and accessories, PN designated Part 2: Cast iron flanges EN 1333 Pipework components Definition and selection of PN prEN 1349:1999 Industrial process control valves prEN 1503-1:1995 Valves - Shell materials - Part 1: Steels prEN 1503-2:1995 Valves - Shell materials
27、 - Part 2: ISO-steels prEN 1503-3:1995 Valves - Shell materials - Part 3: Cast irons EN 1563 Founding - Spheroidal graphite cast irons prEN 12116:1996 Industrial valves Part-turn valve actuator attachment prEN 12266-1:1999 Industrial valves Technical conditions of delivery - Part 1: Requirements to
28、be fulfilled by every valve prEN 12266-2:1999 Industrial valves - Technical conditions of delivery - Part 2: Further requirements EN 12351 Industrial valves - Protective caps for valves with flanged connectionsPage 5 EN 12569:1999 BSI 06-2001 EN 12454 Founding - Visual examination of surface discont
29、inuities - Steel sand castings prEN 12516-3:1999 Valves - Shell design strength - Part 3: Experimental method prEN 12570:1998 Valves - Permissible manual forces for operation of valves EN ISO 5210 Industrial valves - Multi-turn valve actuator attachments(ISO 5210:1991) EN ISO 6708 Pipework component
30、s - Definition and selection of DN (nominal size) (ISO 6708:1995) EN ISO 9001 Quality systems - Model for quality assurance in design/development, production, installation and servicing (ISO 9001:1994) EN ISO 9002 Quality systems - Model for quality assurance in production, installation and servicin
31、g (ISO 9002:1994) EN ISO 9003 Quality systems - Model for quality assurance in final inspection and test (ISO 9003:1994) prEN ISO 10497:1996 Testing of valves - Fire type-testing requirements (ISO 10497:1992) 3 Definitions For the purposes of this standard, the definitions contained in any standard
32、referred to above, apply. 4 Requirements Paragraphs marked with a dot indicate requirements to be specified by the purchaser. 4.1 General The design of the shell shall meet the requirements of prEN 12516-3:1999 or other accepted calculation methods. The following additional force shall allow for the
33、 undefined external moments and forces that are produced by the adjoining piping of the vessel: The additional force, F ADD , shall be calculated from: F ADD = p sx A where: p sis the allowable pressure, in newtons per square millimetre; A is the cross-sectional area (D x /4), in square millimetres;
34、 D is the value of DN, in millimetres.Page 6 EN 12569:1999 BSI 06-2001 It is assumed that the section modulus of the valve is equal to or greater than the adjacent pipe and that the materials strengths are equal. Under these conditions it is assumed that correct function is preserved. For the visual
35、 inspection and the non-destructive tests, all pressure retaining parts shall have a surface finish which makes it possible to conduct the tests in accordance with table 1. When fire test certification is required it shall be specified by the purchaser. Certification shall be in accordance with prEN
36、 ISO 10497:1996 or other standard by agreement. The valve shall be asbestos free. If the subcontractors are not certified in accordance with EN ISO 9000 series, (EN ISO 9001, EN ISO 9002, EN ISO 9003, as appropriate), the purchasers can require to be informed about the change of subcontractors for m
37、ain parts of a valve (e.g. castings, forgings for valves). The purchaser shall be informed about the use of subcontractors for complete valves. The manufacturer shall ensure in every case the interchangeability of parts. 4.2 Quality assurance 4.2.1 Semi-product manufacturer (e.g. foundry, forge, wel
38、ding shop) Semi-product manufacturers shall have suitable equipment and qualified personnel for proper manufacture of their materials and products. They shall have test equipment for tests according to applicable standards or other required technical specifications. These manufacturers shall ensure
39、the proper manufacture and processing of the materials and products by means of a quality assurance system, in accordance with EN ISO 9000 series, (EN ISO 9001, EN ISO 9002, EN ISO 9003, as appropriate) audited at regular intervals by an authorized representative (e.g. notified body). The documentat
40、ion for materials or semi-products shall be made available to the purchaser on request. 4.2.2 Valve manufacturer The valve manufacturer shall have suitable equipment and qualified personnel for the further processing of the materials or semi-products used. He shall operate a quality assurance system
41、, in accordance with EN ISO 9000 series, (EN ISO 9001, EN ISO 9002, EN ISO 9003, as appropriate), audited at regular intervals by an authorized representative (e.g. notified body). The purchaser has the right to witness the quality tests at the manufacturers and/or suppliers premises and to carry ou
42、t quality audits. Documentation shall be made available to the purchaser on request. 4.3 Design 4.3.1 General Valves shall meet the design requirements of their specific product standards, if such exist. Where no applicable product standard exists safe and sound engineering practice, including the a
43、pplication of basic standards for industrial valves, shall apply. The following requirements concerning design shall apply to all valves.Page 7 EN 12569:1999 BSI 06-2001 4.3.2 Anti-blow-out shaft/stem The design of the shaft/stem shall be anti-blow-out type in accordance with EN 736-3. 4.3.3 Gaskets
44、 Gaskets of the shell shall be radially retained against the pressure, except in the case of body bonnet joints up to and including PN 25 (or Class 150) valves. Spiral wound gaskets sealing the body/cover connection shall be fully retained or provided with outer and inner guide rings. The sealing fa
45、ce of spiral wound gaskets and metallic ring-joint gaskets shall not be interrupted by bolts, rings etc. 4.3.4 Fugitive emission control When required, valves shall be fitted with a stem seal specifically designed to prevent fugitive emissions to the atmosphere. If requested by the purchaser a type
46、qualification test shall be carried out. The test procedure and the acceptance criteria shall be as agreed. Where bellows and diaphragms are used as primary seals, they shall be provided with a secondary packing in case of rupture. 4.3.5 Anti-static protection The electrical resistance between body
47、and obturator/stem of the valve shall not exceed 10 6 ohms. 4.3.6 Screwed connections All screwed connections, e.g. body/cover connections or screwed in parts of valves, shall be properly secured (e.g. by friction or locking) against accidental loosening. Screwed body/cover connections that rely on
48、the thread to seal are not acceptable. The valve shall be designed so that the risk of media induced crevice corrosion will be avoided. 4.3.7 Wafer and lug type valves Wafer and lug type valves shall not require an increase in flange bolt load above that which is necessary to seal the valve/flange j
49、oints. 4.3.8 Position of the obturator/actuator in quarter turn valves The position of a lever or indicator shall be in the direction of the pipeline when the valve is open and perpendicular to the pipeline when the valve is closed. Wrong assembly of the lever or indicator shall be impossible. The shaft design and the actuator shall indicate the same obturator position whatever accessories are used (e.g. extensions). After assembly, the position of actuators and gearboxes relative to the valve shall be physically mark
