1、August 2016 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.060.50!%XtF“2538135www.din.deD
2、IN EN 16767Industrial valves Steel and cast iron check valves;English version EN 16767:2016,English translation of DIN EN 16767:2016-08Industriearmaturen Rckflussverhinderer aus Gusseisen und Stahl;Englische Fassung EN 16767:2016,Englische bersetzung von DIN EN 16767:2016-08Robinetterie industrielle
3、 Clapets de non-retour en acier et en fonte;Version anglaise EN 16767:2016,Traduction anglaise de DIN EN 16767:2016-08SupersedesDIN EN 12334:2004-10 andDIN EN 14341:2006-10www.beuth.deDocument comprises 19 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall b
4、e considered authoritative.07.16 DIN EN 16767:2016-08 2 A comma is used as the decimal marker. National foreword This document (EN 16767:2016) has been prepared by Technical Committee CEN/TC 69 “Industrial valves (Secretariat: AFNOR, France). The responsible German body involved in its preparation w
5、as DIN-Normenausschuss Armaturen (DIN Standards Committee Valves), Working Committee NA 003-01-06 AA Industriearmaturen fr die Wasserversorgung, Membranarmaturen, Rckflussverhinderer und Hydranten. The DIN Standards corresponding to the International Standards referred to in this document are as fol
6、lows: ISO 7-1 DIN EN 10226-1 ISO 4200 DIN EN 10220, mod. ISO 1629 DIN ISO 1629 Amendments This standard differs from DIN EN 12334:2004-10 and DIN EN 14341:2006-10 as follows: a) the contents of the previous versions of DIN EN 12334 and DIN EN 14341 have been combined in one standard; b) materials ar
7、e now referenced to EN 12516-1 and/or EN 12516-4; c) the informative Annex B “Comparison between EN and ISO cast iron material grades” (formerly contained in DIN EN 12334:2004-10) has been deleted; d) Table 1 “Nominal inside diameter of the body end port” and Table 2 “Sizes of auxiliary connections”
8、 (formerly contained in DIN EN 14341:2006-10) have been deleted; e) normative references have been updated; f) the technical content has been substantially revised. Previous editions DIN EN 12334: 2001-04, 2004-10 DIN EN 14341: 2006-10 DIN EN 16767:2016-08 3 National Annex NA (informative) Bibliogra
9、phy DIN EN 10220, Seamless and welded steel tubes Dimensions and masses per unit length DIN EN 10226-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Taper external threads and parallel internal threads Dimensions, tolerances and designation DIN ISO 1629, Rubber and la
10、tices Nomenclature DIN EN 16767:2016-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16767 April 2016 ICS 23.060.50 Supersedes EN 12334:2001, EN 14341:2006English Version Industrial valves - Steel and cast iron check valves Robinetterie industrielle - Clape
11、ts de non-retour en acier et en fonte Industriearmaturen - Rckflussverhinderer aus Gusseisen und Stahl This European Standard was approved by CEN on 12 February 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Sta
12、ndard the status of a national standard without any alteration. Up-to-date lists and bibliographical 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 (Engli
13、sh, 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 the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, B
14、ulgaria, 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,
15、 Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membe
16、rs. Ref. No. EN 16767:2016 EEN 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 Aux
17、iliary 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, prepara
18、tion 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 (Pr
19、essure equipment Directive) aimed to be covered. 14 Bibliography . 15 DIN EN 16767:2016-08 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 sha
20、ll 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 doc
21、ument 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 Europea
22、n 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 conte
23、nt 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 b
24、ody 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 St
25、andard: 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,
26、Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16767:2016-08 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 connec
27、tions 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. Bac
28、k 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
29、 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 limit
30、ed 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;
31、 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. DIN EN 16767:2016-08 EN 16767:2016 (E) 5 2 Normative references The following documents, in w
32、hole 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 Markin
33、g 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 comp
34、onents 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, fi
35、ttings 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 an
36、d/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 des
37、ign 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 mater
38、ials 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 cen
39、tre-to-end dimensions for valves with threaded ends 1)Under preparation. DIN EN 16767:2016-08 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 weld
40、ers 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
41、 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 i
42、n 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 7363. NOTE 2 EN 7361 illustrates four basic check valve type
43、s: 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 in
44、formation 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 con
45、nections, which may be used for the body and cover connection, is indicated in EN 1515-4. DIN EN 16767:2016-08 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 a
46、t least equal to the body and bonnet material. The manufacturer shall declare the materials of construction and any coatings of components in contact with the line fluid from which the suitability of the valve for the application can be determined. 4.2.2 Pressure/temperature ratings 4.2.2.1 Steel bo
47、dy The pressure/temperature ratings shall be in accordance with EN 12516-1:2014 for the particular body/bonnet material group. The pressure/temperature ratings applicable to Class 800 socket welding and threaded end valves shall be the Class 600 rating for the applicable material group multiplied by
48、 the ratio of 800/600. 4.2.2.2 Cast iron body The pressure/temperature ratings shall be in accordance with EN 12516-4:2014 for the particular body/bonnet material group. 4.2.2.3 Other parts Other parts of the valve (cover, bolts etc.) shall have such dimensions, so that they fulfil the body rating.
49、4.2.2.4 Low temperature applications 4.2.2.4.1 Steel check valves For temperatures below the lowest temperature given in the pressure/temperature rating tables of EN 12516-1:2014, the maximum allowable pressure shall be not greater than the pressure corresponding to the lowest temperature in the rating tables. The use of valves at lower temperatures than shown in the rating tables
