EN 16668:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industriearmaturen - Anforderungen und Prüfungen für Metallarmaturen als drucktragende AusrüstungsteileRobinetterie industrielle - Exigences et essai pour appareils de robinetterie métalliques tels que les accessoires sous pressionIndustrial valves - Requirements and testing for metallic valves as pressure accessories23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 16668:2016SIST EN 16668:2016en,fr,de01-julij-2016SIST EN 16668:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16668
April
t r s x ICS
t uä r x rä r s English Version
Industrial valves æ Requirements and testing for metallic valves as pressure accessories Robinetterie industrielle æ Exigences et essais pour appareils de robinetterie métalliques utilisés comme accessoires sous pression
Industriearmaturen æ Anforderungen und Prüfungen für Metallarmaturen als drucktragende Ausrüstungsteile This European Standard was approved by CEN on
t u January
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
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t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x x x zã t r s x ESIST EN 16668:2016

Classification of valves. 17 Annex B (informative)
European harmonized standards for materials and components for shell parts . 23 Annex C (informative)
European Approval of Materials (EAM) . 25 Annex D (informative)
European harmonized supporting standards for valves . 26 Annex E (informative)
Non-destructive testing of steel castings . 28 E.1 Terms and Definitions . 28 E.2 Non-destructive testing of steel castings . 28 SIST EN 16668:2016

Non-destructive testing (NDT) of joint welding . 37 F.1 General . 37 F.2 Non-destructive testing (NDT) extent . 37 F.3 Selection of NDT-methods . 43 Annex ZA (informative)
Relationship between this European Standard and the essential requirements of Directive 2014/68/EU (Pressure equipment Directive) aimed to be covered . 45 Bibliography . 48
1) This document was superseded with EN ISO 9606-1:2013, Qualification testing of welders — Fusion welding — Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012). SIST EN 16668:2016

This definition is based on ISO 2859-1. 3.5 material manufacturer person or organization (like founder, forge-, welding shop) which provides material to the responsible valve manufacturer 4 Category of valves 4.1 Classification of valves A classification under the use of DN and PS and fluid groups 1 and 2 leads to maximum category III. For respective results see Annex A. 4.2 Sound engineering practice Valves classified in Article 3 (3), PED, are excluded from conformance to requirements of this standard but shall meet the “sound engineering practice” by conformity to the relevant product standard. 5 Requirements 5.1 Design 5.1.1 General Valves shall meet the design requirements of this standard and the ones referenced in Annex ZA of their relevant European harmonized standards. NOTE Annex D contains a summary of European harmonized Standard for valves. SIST EN 16668:2016

0,5 bar and valves classified in Art 3 (3) of the PED. Where relevant the requirements given in EN 764–4:2014 should be considered. 5.2.2 European harmonized standards A summary of Harmonized European Material Standards for shell parts is given in Annex B. 5.2.3 European approval of materials (EAM) EAM for materials are intended for repeated use. They are established in accordance with EN 764-4:2014 and apply to materials or treatment condition and product forms or dimensions not covered in a European Harmonized Standard. Annex C contains a link to OJEU Website for European approval of materials (EAM). SIST EN 16668:2016

Obturator strength If a pressure related hazard is identified in relation with the obturator of the valve (for example in valves used as end of line service), P 20 Test of EN 12266–2:2012 is required in addition. EN 12266–2:2012, Annex A, A.2, Test P 20 5.6 Marking Marking shall be in accordance with EN 19:2002 and the relevant harmonized European product standards. 5.7 Surface and coating testing Protective coating or special surface treatment shall be inspected or tested in accordance with the purchaser specification. 5.8 Documentation 5.8.1 Documentation for final inspection In general the following technical documents shall be available as appropriate: — evidence of qualification of NDT personnel relevant to the equipment category; — evidence of qualification of permanent joining personnel relevant to the equipment category; — data dealing with heat treatment (e.g. diagram of temperatures); — inspection documents for base materials and welding consumables; — procedures for assuring material traceability; — NDT test reports, including radiographic films; — test reports of destructive tests (e.g. test coupons); — reports on defects or deviations arising during manufacture; SIST EN 16668:2016

0,5 bar and valves under PED, Article 3 (3) to be accompanied by an adequate instruction for use. NOTE 2 To deliver the Declaration of Conformity is subject of agreement between manufacturer and purchaser. — The manufacturer's declaration shall make reference to this standard. Valves with PS
0,5 bar and valves under PED, Article 3 (3) may be accompanied with a “statement of conformity” of sound engineering practice. — The supply of technical documentation is subject to agreement (see 5.8.1). SIST EN 16668:2016

Classification of valves For all valves covered by the product standards listed in Table A.1 nominal size (DN), maximum allowable pressure (PS) and the fluid group are considered as appropriate for valve classification as shown in Tables A.2 to A.5. Consequently the maximum PED category for these valves ends up in category III even when installed in a higher categorized pressure equipment. NOTE For valves not covered by product standards listed in Table A.1 it is the manufacturer's responsibility to consider either the volume (V) or the nominal size (DN) for the classification of the valve. The value PS (maximum allowable pressure), for PN designated valves PS is equal to PN, is the value specified in EN 12516-1:2014 or by the manufacturer. Valves, which shall be used both for liquid and for gaseous fluids, shall be classified for gaseous fluids. Valves, which shall be used both for fluids of Fluid Group 1 and fluids of Fluid Group 2, shall be classified in Fluid Group 1. Table A.1 — Harmonized product standards Reference and title of the European harmonized product standard EN 593, Industrial valves — Metallic butterfly valves EN 1171, Industrial valves — Cast iron gate valves EN 1349, Industrial process control valves EN 1983, Industrial valves — Steel ball valves EN 1984, Industrial valves — Steel gate valves EN 12288, Industrial valves — Copper alloy gate valves EN 12334, Industrial valves — Cast iron check valves EN 13397, Industrial valves — Diaphragm valves made of metallic materials EN 13709, Industrial valves — Steel globe and globe stop and check valves EN 13789, Industrial valves — Cast iron globe valves EN 14341, Industrial valves — Steel check valves SIST EN 16668:2016

The following tables are based on Table 6 to 9 of PED, Annex II. Table A.2 — Fluid Group 1 – Gas PN Class DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 250 DN 300 DN 350 DN 400 DN 450 DN 500 DN 600 DN 700 DN 750 DN 800 DN 900 DN 1000 2,5
Category I
Category III
Category II
Art. 3 (3)
Exceptionally, valves intended for unstable gasses and falling within Categories I or II shall be classified in Category III. NOTE For module selection see Table A.6. SIST EN 16668:2016

Art. 3 (3)
Category I
Category II
Category III
Valves with a PN 2.5 and a DN > DN 800 shall be classified in Category I. NOTE For module selection see Table A.6. SIST EN 16668:2016

Art. 3 (3)
Category I
Category II
Category III
Exceptionally, valves containing fluids at a temperature greater than 350°C and falling within Category II shall be classified in Category III. NOTE For module selection see Table A.6. SIST EN 16668:2016

Art. 3 (3)
Category I
Category II
NOTE For module selection see Table A.6. SIST EN 16668:2016

European harmonized standards for materials and components for shell parts To give guidance and gather awareness, Table B.1 summarizes European harmonized standards for materials and components for shell parts to provide an overview to the user of this standard. The latest edition of the Official Journal of the European Union (OJEU) shall be used. The user is advised that: — standards may be deleted or added to this list, — only those issues and amendment as listed in the actual Official Journal of the European Union have the status of an European harmonized Standard, — the actual list of European harmonized Standard can be found at the European Commission's home page. SIST EN 16668:2016

EN 13480–8 specifies requirements for parts such as welded tubes and fittings. For further information refer to NOTE 1 in EN 13480–8:2012, 8.2.1. SIST EN 16668:2016

European Approval of Materials (EAM) Detailed information concerning European Approval of Materials is available from the following address: http://ec.europa.eu/growth/sectors/pressure-gas/pressure-equipment/directive/index_en.htm
The user is advised that the actual list of European Approval of Materials can be found at the European Commission's home page. SIST EN 16668:2016

European harmonized supporting standards for valves To give guidance and gather awareness, Table D.1 summarizes European harmonized standards for valves to provide an overview to the user. The latest edition of the Official Journal of the European Union (OJEU) shall be used. NOTE The standards referenced are those listed in the Official Journal of the European Union 2014/C 313/53 dated 12th September 2014. The user is advised that — standards may be deleted or added to this list, — only those issues and amendment as listed in the actual Official Journal of the European Union have the status of an European harmonized Standard, — the actual list of European harmonized Standard can be found at the European Commission's home page. Table D.1 — Overview of European harmonized standards for valves Reference and title of the European harmonized supporting standard EN 19, Industrial valves — Marking of metallic valves EN 334, Gas pressure regulators for inlet pressures up to 100 bar EN 593, Industrial valves - Metallic butterfly valves EN 1171, Industrial valves — Cast iron gate valves EN 1349, Industrial process control valves EN 1626, Cryogenic vessels — Valves for cryogenic service EN 1983, Industrial valves — Steel ball valves EN 1984, Industrial valves — Steel gate valves EN 12178, Refrigerating systems and heat pumps — Liquid level indicating devices — Requirements, testing and marking EN 12263, Refrigerating systems and heat pumps — Safety switching devices for limiting the pressure — Requirements and tests EN 12266–1, Industrial valves — Testing of valves — Part 1: Pressure tests, test procedures and acceptance criteria — Mandatory requirements EN 12266–2, Industrial valves — Testing of metallic valves — Part 2: Tests, test procedures and acceptance criteria — Supplementary requirements EN 12284, Refrigerating systems and heat pumps — Valves — Requirements, testing and marking EN 12288, Industrial valves — Copper alloy gate valves SIST EN 16668:2016
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