General Information

Abstract

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 1000.
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 steel bodies 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.

Status
Withdrawn
Publication Date
19-Apr-2016
Withdrawal Date
22-Sep-2026
ICS
23.060.50 - Check valves
Technical Committee
CEN/TC 69 - Industrial valves
Drafting Committee
CEN/TC 69/WG 6 - Check valves
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
15-Apr-2020
Completion Date
23-Sep-2026
Directive
Harmonized Standard2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
OJ Ref: C 293/01 OJ Date: 12-Aug-2016
 
Not Harmonized97/23/EC - Pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 16767:2016 - Industrial valves - Steel and cast iron check valves

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Relations

Replaces
EN 12334:2001 - Industrial valves - Cast iron check valves
Effective Date
27-Apr-2016
Replaces
EN 12334:2001/AC:2002 - Industrial valves - Cast iron check valves
Effective Date
27-Apr-2016
Replaces
EN 14341:2006 - Industrial valves - Steel check valves
Effective Date
27-Apr-2016
Replaces
EN 12334:2001/A1:2004 - Industrial valves - Cast iron check valves
Effective Date
27-Apr-2016
Replaced By
EN 16767:2020 - Industrial valves - Metallic check valves
Effective Date
22-Apr-2020
Refers
ISO 7-1:1994 - Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation
Effective Date
25-Aug-2026
Refers
EN ISO 9606-1:2017 - Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1:2012 including Cor 1:2012 and Cor 2:2013)
Effective Date
28-Jan-2026
Refers
EN 12351:2010 - Industrial valves - Protective caps for valves with flanged connections
Effective Date
28-Jan-2026
Refers
prEN 15116 - Ventilation in buildings - Chilled beams - Testing and rating of active chilled beams
Effective Date
28-Jan-2026
Refers
EN 12627:1999 - Industrial valves - Butt welding ends for steel valves
Effective Date
28-Jan-2026
Refers
EN 1092-1:2007+A1:2013 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges
Effective Date
28-Jan-2026
Refers
EN ISO 15607:2019 - Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2019)
Effective Date
28-Jan-2026
Refers
EN 736-3:2008 - Valves - Terminology - Part 3: Definition of terms
Effective Date
28-Jan-2026
Refers
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
Effective Date
28-Jan-2026
Refers
EN 1092-2:1997 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
Effective Date
28-Jan-2026

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Frequently Asked Questions

EN 16767:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Industrial valves - Steel and cast iron check valves". This standard covers: 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 1000. 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 steel bodies 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.

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 1000. 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 steel bodies 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.

EN 16767:2016 is classified under the following ICS (International Classification for Standards) categories: 23.060.50 - Check valves. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 16767:2016 has the following relationships with other standards: It is inter standard links to EN 12334:2001, EN 12334:2001/AC:2002, EN 14341:2006, EN 12334:2001/A1:2004, EN 16767:2020, ISO 7-1:1994, EN ISO 9606-1:2017, EN 12351:2010, prEN 15116, EN 12627:1999, EN 1092-1:2007+A1:2013, EN ISO 15607:2019, EN 736-3:2008, EN 1759-1:2004, EN 1092-2:1997. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 16767:2016 is associated with the following European legislation: EU Directives/Regulations: 2014/68/EU, 97/23/EC; Standardization Mandates: M/071. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

EN 16767:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


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

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
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

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
1) Under preparation. SIST EN 16767:2016
...