SIST EN 16767:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industrijski ventili - Protipovratni ventili iz jeklenih litinIndustriearmaturen - Rückflussverhinderer aus Gusseisen und StahlRobinetterie industrielle - Clapets de non-retour en acier et fonteIndustrial valves - Steel and cast iron check valves23.060.50Blokirni ventiliCheck valvesICS:Ta slovenski standard je istoveten z:EN 16767:2016SIST EN 16767:2016en,fr,de01-julij-2016SIST EN 16767:2016SLOVENSKI
STANDARDSIST EN 12334:2001/AC:2003SIST EN 14341:2007SIST EN 12334:2001SIST EN 12334:2001/A1:20041DGRPHãþD



SIST EN 16767:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16767
April
t r s x ICS
t uä r x rä w r Supersedes EN
s t u u vã t r r sá EN
s v u v sã t r r xEnglish Version
Industrial valves æ Steel and cast iron check valves Robinetterie industrielle æ Clapets de nonæretour en acier et en fonte
Industriearmaturen æ Rückflussverhinderer aus Gusseisen und Stahl This European Standard was approved by CEN on
s t February
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
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
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 y x yã t r s x ESIST EN 16767:2016



EN 16767:2016 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 General . 6 4.2 Design . 6 4.2.1 Materials . 6 4.2.2 Pressure/temperature ratings . 7 4.2.3 Dimensions . 8 4.2.4 Operation . 8 4.2.5 Auxiliary connections . 9 4.2.6 Permanent joining of the steel body . 9 4.3 Functional characteristics. 9 4.3.1 Shell design strength . 9 4.3.2 Flow characteristics . 10 4.3.3 Seat leakage . 10 4.3.4 Anti-blow out design . 10 5 Test procedures . 10 6 Declaration of compliance . 10 7 Designation. 10 8 Marking, preparation for storage and transportation . 11 8.1 Marking . 11 8.2 Preparation for storage and transportation . 12 Annex A (informative)
Information to be supplied by the purchaser . 13 Annex ZA (informative)
Relationship between this European Standard and the essential requirements of Directive 2014/68/EU (Pressure equipment Directive) aimed to be covered. 14 Bibliography . 15
SIST EN 16767:2016



EN 16767:2016 (E) 3 European foreword This document (EN 16767:2016) 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 by publication of an identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. 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] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12334:2001 and EN 14341:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The main changes to the previous version of EN 12334:2001 and EN 14341:2006 are the following: — combined content from previous version of EN 12334:2001 and EN 14341:2006; — materials referenced to EN 12516-1 and/or to EN 12516-4; — from EN 12334:2001, removal of informative Annex B “Comparison between EN and ISO cast iron material grades”; — from EN 14341:2006, removal of Table 1 “Nominal inside diameter of the body end port” and Table 2 “Sizes of auxiliary connections”; — revision of the normative references; — the technical content was considerably revised. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, 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, Switzerland, Turkey and the United Kingdom. SIST EN 16767:2016



EN 16767:2016 (E) 4 1 Scope This European Standard specifies the requirements for cast iron or steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with end connections flanged or wafer, butt welding, socket welding, or threaded. This European Standard applies to check valves mainly used for industrial and general purpose applications. However, they may be used for other applications provided the requirements of the relevant performance standards are met. Back flow prevention anti-pollution check valves are outside the scope of this European standard. The range of nominal sizes covered is: DN 8, DN 10; DN 12, DN 15; DN 20; 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 1 000. DN 8 and DN 12 are not used for PN designated flanged end connections. DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections. DN 750 is used for Class designated valves only. Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65. The range of pressure designations covered is: a) for flanged end and wafer type end cast iron bodies: — PN 2,5; PN 6; PN 10; PN 16; PN 25; — Class 125; Class 250; b) for flanged end, wafer type and butt welding end steel bodies: — PN 40; PN 63; PN 100; — Class 150; Class 300; Class 600; c) for socket welding end and threaded end steel bodies: — PN 40; PN 63; PN 100; — Class 600; Class 800. NOTE Class 800 is a widely used Class designation for socket welding and threaded end valves. SIST EN 16767:2016



EN 16767:2016 (E) 5 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 19:2016, Industrial valves — Marking of metallic valves prEN 558:20151), Industrial valves — Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems — PN and Class designated valves EN 736-1, Valves — Terminology — Part 1: Definition of types of valves EN 736-2, Valves — Terminology — Part 2: Definition of components of valves EN 736-3, Valves — Terminology — Part 3: Definition of terms EN 1092-1:2007+A1:2013, 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 flanges for pipes, valves, fittings and accessories, PN designated — Part 2: Cast iron flanges EN 1759-1:2004, Flanges and their joint — Circular flanges for pipes, valves, fittings and accessories, Class designated — Part 1: Steel flanges, NPS 1/2 to 24 EN 10269:2013, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties EN 12266-1, Industrial valves — Testing of metallic valves — Part 1: Pressure tests, test procedures and acceptance criteria — Mandatory requirements EN 12351, Industrial valves — Protective caps for valves with flanged connections EN 12516-1:2014, Industrial valves — Shell design strength — Part 1: Tabulation method for steel valve shells EN 12516-2:2014, Industrial valves — Shell design strength — Part 2: Calculation method for steel valve shells EN 12516-4:2014, Industrial valves — Shell design strength — Part 4: Calculation method for valve shells manufactured in metallic materials other than steel EN 12627:1999, Industrial valves — Butt welding ends for steel valves prEN 12760:20151), Valves — Socket welding ends for steel valves EN 12982:2009, Industrial valves — End-to-end and centre-to-end dimensions for butt welding end valves EN 16722, Industrial valves — End-to-end and centre-to-end dimensions for valves with threaded ends
1) Under preparation. SIST EN 16767:2016



EN 16767:2016 (E) 6 EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1) EN ISO 9606-1, Qualification testing of welders — Fusion welding — Part 1: Steels (ISO 9606-1) EN ISO 14732, Welding personnel — Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials (ISO 14732) EN ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules (ISO 15607) ISO 7-1:1994, Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation ANSI/ASME B1.20.1, Pipe Threads, General Purpose, Inch 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 736-1, EN 736-2 and EN 736-3 apply. NOTE 1 The terms maximum allowable pressure, PS, and test pressure, PT, defined in Directive 2014/68/EU (PED) are equivalent to the terms allowable pressure, ps, and test pressure, pt, defined in EN 736–3. NOTE 2 EN 736–1 illustrates four basic check valve types: — the axial and lift types are based on the globe valve; — the swing type is based on the butterfly valve and — the diaphragm type is based on the diaphragm valve. Other check valve types are possible and are considered to be within the scope of this European standard. 4 Requirements 4.1 General For information to be supplied by the purchaser see Annex A. 4.2 Design 4.2.1 Materials 4.2.1.1 The body and cover (if any) materials shall be selected from EN 12516-1:2014 and/or EN 12516-4:2014. Bolting (if any) materials shall be selected from EN 10269:2013. A selection of bolts and nuts for flange connections, which may be used for the body and cover connection, is indicated in EN 1515-4. SIST EN 16767:2016



EN 16767:2016 (E) 7 4.2.1.2 All the internal parts in contact with the fluid shall be made of a material or coated with a material whose corrosion resistance to the fluid being carried is at least equal to the body and bonnet material. The manufacturer shall declare t
...