EN 16668:2016/FprA1
(Amendment)Industrial valves - Requirements and testing for metallic valves as pressure accessories
Industrial valves - Requirements and testing for metallic valves as pressure accessories
This European standard applies to metallic valves as pressure accessories for industrial applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the Pressure Equipment Directive (PED) 97/23/EC and specifies minimum requirements applicable to design, manufacture, testing, materials and documentation.
All relevant essential safety requirements of the Pressure Equipment Directive (PED) 97/23/EC applicable to valves have been taken into consideration and are addressed in this standard.
This standard is not applicable to:
- safety valve and bursting disc (a safety accessory),
- sight glass with its frames (component of a pressure equipment) and
- measurement chambers.
For other exclusions refer to the PED.
Industriearmaturen - Anforderungen und Prüfungen für Metallarmaturen als drucktragende Ausrüstungsteile
Diese Europäische Norm gilt für Metallarmaturen als drucktragende Ausrüstungsteile für Anwendungen in der Industrie mit einem maximal zulässigen Druck (PS) größer als 0,5 bar nach der Druckgeräterichtlinie (DGRL) 2014/68/EU und legt die Mindestanforderungen fest, die für die Gestaltung (Auslegung), Herstellung, Prüfung, Werkstoffe und Dokumentation gelten.
Sämtliche relevanten grundlegenden Sicherheitsanforderungen der Druckgeräterichtlinie (DGRL) 2014/68/EU, die für die Armaturen gelten, wurden berücksichtigt und werden in dieser Norm behandelt.
Diese Norm gilt nicht für:
— Sicherheitsventile und Berstscheiben (ein Ausrüstungsteil mit Sicherheitsfunktion);
— Schaugläser und deren Fassungen (Bauteil eines Druckgerätes) und
— Messkammern.
Hinsichtlich weiterer Ausschlüsse wird auf die DGRL [32] verwiesen.
Robinetterie industrielle - Exigences et essais pour appareils de robinetterie métalliques utilisés comme accessoires sous pression
La présente Norme européenne est applicable aux appareils de robinetterie métalliques utilisés comme accessoires sous pression pour applications industrielles avec une pression maximale admissible PS supérieure à 0,5 bar, conformément à la Directive Équipements Sous Pression (DESP) 97/23/CE, et spécifie les exigences minimales applicables en matière de conception, de fabrication, d'essais, de matériaux et de documentation.
Toutes les exigences essentielles de sécurité pertinentes de la Directive Équipements Sous Pression (DESP) 97/23/CE applicables aux appareils de robinetterie ont été prises en considération et sont traitées dans la présente Norme.
La présente Norme ne s'applique pas :
- aux soupapes de sûreté et disques de rupture (accessoires de sécurité),
- aux voyants et à leurs cadres (composants d'un équipement sous pression), et
- aux chambres de mesure.
Pour les autres exclusions, se reporter à la DESP.
Industrijski ventili - Zahteve in preskušanje kovinskih ventilov kot tlačnega pribora
General Information
- Status
- Not Published
- Technical Committee
- CEN/TC 69 - Industrial valves
- Drafting Committee
- CEN/TC 69/WG 1 - Basic standards
- Current Stage
- 5060 - Closure of Vote - Formal Approval
- Start Date
- 07-Dec-2017
- Due Date
- 26-Jan-2019
- Completion Date
- 07-Dec-2017
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 16-Nov-2016
Overview
EN 16668:2016/FprA1 is a European standard developed by CEN that defines the requirements and testing methods for metallic industrial valves used as pressure accessories. It applies to metallic valves with a maximum allowable pressure (PS) exceeding 0.5 bar, in line with the European legislation for pressure equipment, including the Pressure Equipment Directive (PED) 97/23/EC and its successors. This standard establishes minimum criteria for design, manufacturing, testing, material selection, and documentation to ensure the safety, reliability, and regulatory compliance of metallic industrial valves employed in pressure systems.
Notably, EN 16668 excludes safety valves, bursting discs, sight glasses, and measurement chambers, which have separate standards or regulatory guidelines. The standard supports manufacturers and regulatory bodies in achieving conformity with essential safety requirements for pressure equipment in industrial applications.
Key Topics
Scope and Applicability
EN 16668 covers metallic valves classified as pressure accessories where the maximum allowable pressure is greater than 0.5 bar. Valves under Article 4(3) of the European legislation for pressure equipment are exempt but must adhere to sound engineering practice.Design Requirements
Mandates design for adequate strength based on validated calculation methods or experimental validation where necessary. The standard enforces design loadings and stresses in line with European regulatory requirements.Material Selection and Quality Assurance
Specifies materials must meet appropriate mechanical and corrosion resistance properties, be free from aging effects, and be suitable for required processing procedures. Traceability and conformity with material specifications are essential.Manufacturing and Testing Procedures
Includes non-destructive testing, hydrostatic testing, heat treatment, and final inspection requirements. Specific assessments by notified bodies are mandated for valves in higher pressure categories (III or IV).Documentation and Traceability
Requires comprehensive documentation including inspection certificates, material certifications in line with EN 764-5, and clear operating instructions labeling.Conformity Assessment
Addresses the conformity procedures under the European legislation for pressure equipment, including categorization using DN (nominal diameter), PS (pressure), and fluid groups, with detailed guidance on pressure accessory classification.
Applications
EN 16668 is essential for industries that utilize metallic valves as part of pressure systems where safety and regulatory compliance are critical. Common practical applications include:
Oil and Gas Industry
Valves in pipelines and processing plants managing high-pressure fluids.Chemical and Petrochemical Plants
Controlling flow in systems subject to stringent safety and corrosion resistance requirements.Power Generation
Valves in steam, water, and gas systems requiring robust testing and certification.Manufacturing and Process Industries
Industrial valve design and testing for various machinery and production lines involving pressure systems.
Implementing EN 16668 ensures valves meet stringent safety and reliability metrics, crucial for preventing leaks, equipment failure, and ensuring operational integrity under pressurized conditions.
Related Standards
Pressure Equipment Directive (PED) 2014/68/EU
The underlying legislation harmonizing the safety regulations for pressure equipment within EU Member States. EN 16668 facilitates compliance with PED essential requirements.EN 1515-4:2009
Specifies bolt selection criteria for pressure equipment, referenced in EN 16668 for bolting components.EN 764-5
Defines quality systems for material manufacturers, ensuring traceability and conformity for materials used in valve production.Valve-Specific Product Standards
Complementary standards covering safety valves, bursting discs, sight glasses, and measurement chambers excluded from EN 16668.
Keywords: EN 16668, industrial valves standard, metallic valves pressure accessories, pressure equipment directive, valve design requirements, valve testing, valve manufacturing standards, European valve conformity, pressure equipment safety, valve materials quality, industrial valve inspection.
Frequently Asked Questions
EN 16668:2016/FprA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Industrial valves - Requirements and testing for metallic valves as pressure accessories". This standard covers: This European standard applies to metallic valves as pressure accessories for industrial applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the Pressure Equipment Directive (PED) 97/23/EC and specifies minimum requirements applicable to design, manufacture, testing, materials and documentation. All relevant essential safety requirements of the Pressure Equipment Directive (PED) 97/23/EC applicable to valves have been taken into consideration and are addressed in this standard. This standard is not applicable to: - safety valve and bursting disc (a safety accessory), - sight glass with its frames (component of a pressure equipment) and - measurement chambers. For other exclusions refer to the PED.
This European standard applies to metallic valves as pressure accessories for industrial applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the Pressure Equipment Directive (PED) 97/23/EC and specifies minimum requirements applicable to design, manufacture, testing, materials and documentation. All relevant essential safety requirements of the Pressure Equipment Directive (PED) 97/23/EC applicable to valves have been taken into consideration and are addressed in this standard. This standard is not applicable to: - safety valve and bursting disc (a safety accessory), - sight glass with its frames (component of a pressure equipment) and - measurement chambers. For other exclusions refer to the PED.
EN 16668:2016/FprA1 is classified under the following ICS (International Classification for Standards) categories: 23.060.01 - Valves in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 16668:2016/FprA1 has the following relationships with other standards: It is inter standard links to EN 16668:2016+A1:2018, EN 16668:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 16668:2016/FprA1 is associated with the following European legislation: EU Directives/Regulations: 2014/68/EU; 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.
You can purchase EN 16668:2016/FprA1 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2017
,QGXVWULMVNLYHQWLOL=DKWHYHLQSUHVNXãDQMHNRYLQVNLKYHQWLORYNRWWODþQHJDSULERUD
Industrial valves - Requirements and testing for metallic valves as pressure accessories
Industriearmaturen - Anforderungen und Prüfungen für Metallarmaturen als
drucktragende Ausrüstungsteile
Robinetterie industrielle - Exigences et essais pour appareils de robinetterie métalliques
utilisés comme accessoires sous pression
Ta slovenski standard je istoveten z: EN 16668:2016/prA1
ICS:
23.060.01 Ventili na splošno Valves in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
EN 16668:2016
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
February 2017
ICS 23.060.01
English Version
Industrial valves - Requirements and testing for metallic
valves as pressure accessories
Robinetterie industrielle - Exigences et essais pour Industriearmaturen - Anforderungen und Prüfungen
appareils de robinetterie métalliques utilisés comme für Metallarmaturen als drucktragende
accessoires sous pression Ausrüstungsteile
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 69.
This draft amendment A1, if approved, will modify the European Standard EN 16668:2016. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN in three official versions (English, 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, 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16668:2016/prA1:2017 E
worldwide for CEN national Members.
EN 16668:2016/prA1:2017 (E)
Contents Page
European foreword . 3
1 Modification to the Scope . 4
2 Modification to Clause 4. 4
3 Modification to 5.1.2 . 4
4 Modification to 5.2.1 . 4
5 Modification to 5.2.4 . 4
6 Modification to 5.2.6 . 4
7 Modification to 5.8.1 . 4
8 Modification to 5.8.2 . 5
9 Modification to Annex A . 5
10 Modification to Annex Z.A . 5
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/68/EU aimed to be covered . 6
EN 16668:2016/prA1:2017 (E)
European foreword
This document (EN 16668:2016/prA1:2017) has been prepared by Technical Committee CEN/TC
69 “Industrial valves”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
EN 16668:2016/prA1:2017 (E)
1 Modification to the Scope
Replace “Pressure Equipment Directive 2014/68/EU” by “European legislation for pressure equipment”
in the 1st and 2nd paragraph.
Replace “PED” by “European legislation for pressure equipment”.
2 Modification to Clause 4
Replace all Clause 4 by the following text:
“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.
Valves c
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