EN 12266-1:2012

• Abstract:

  This European Standard specifies requirements for tests, test procedures and acceptance criteria for production testing of industrial valves made of metallic materials.; The specified tests may also be used as type tests or acceptance tests.; Safety devices are not covered by EN 12266-1.; When specified as a normative reference in a valve product or performance standard, this European Standard is to be considered in conjunction with given specific requirements of the valve product or performance standard. Where requirements in a product or performance standard differ from those given in this European Standard, the requirements of the product or performance standard apply.; NOTE For testing of industrial valves of thermoplastic materials, ISO 9393-1 and ISO 9393-2 apply.

• Status: Published
• Publication Date: 03-Apr-2012
• Withdrawal Date: 30-Oct-2012
• ICS: 11.060.20 - Dental equipment
• ICS: 23.060.01 - Valves in general
• Technical Committee: CEN/TC 69 - Industrial valves
• Drafting Committee: CEN/TC 69/WG 1 - Basic standards
• Current Stage: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 30-Jan-2024
• Completion Date: 17-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
• Directive:

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  Not Harmonized97/23/EC - Pressure equipment
  OJ Ref: C, C 233 OJ Date: 03-Aug-2012
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 12266-1:2012 - Industrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and acceptance criteria - Mandatory requirements

• Replaces: EN 12266-1:2003 - Industrial valves - Testing of valves - Part 1: Pressure tests, test procedures and acceptance criteria - Mandatory requirements
• Effective Date: 11-Apr-2012
• Refers: EN 1349:2009 - Industrial process control valves
• Effective Date: 28-Jan-2026
• Refers: EN 736-2:1997 - Valves - Terminology - Part 2: Definition of components of valves
• Effective Date: 28-Jan-2026
• Refers: EN 736-3:2008 - Valves - Terminology - Part 3: Definition of terms
• Effective Date: 28-Jan-2026
• Refers: EN 736-1:1995 - Valves - Terminology - Part 1: Definition of types of valves
• Effective Date: 28-Jan-2026
• Referred By: EN 1626:2008 - Cryogenic vessels - Valves for cryogenic service
• Effective Date: 28-Jan-2026
• Referred By: EN 488:2015 - District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
• Effective Date: 28-Jan-2026
• Referred By: EN 17110:2018 - Tanks for transport of dangerous goods - Service equipment for tanks - Vapour manifold vent valve
• Effective Date: 28-Jan-2026
• Referred By: EN 1983:2013 - Industrial valves - Steel ball valves
• Effective Date: 28-Jan-2026
• Referred By: EN 13774:2013 - Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar - Performance requirements
• Effective Date: 28-Jan-2026
• Referred By: EN 1984:2010 - Industrial valves - Steel gate valves
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 21787:2006 - Industrial valves - Globe valves of thermoplastics materials (ISO 21787:2006)
• Effective Date: 28-Jan-2026
• Referred By: EN 1474-1:2008 - Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 1: Design and testing of transfer arms
• Effective Date: 28-Jan-2026
• Referred By: EN 1983:2006 - Industrial valves - Steel ball valves
• Effective Date: 28-Jan-2026
• Referred By: EN 14141:2003 - Valves for natural gas transportation in pipelines - Performance requirements and tests
• Effective Date: 28-Jan-2026

Overview

EN 12266-1:2012 - Industrial valves: Testing of metallic valves - Part 1 - specifies mandatory pressure tests, test procedures and acceptance criteria for production testing of industrial valves made of metallic materials. It defines uniform methods for shell strength (P10), shell tightness (P11) and seat tightness (P12) tests, the required test media, temperature ranges and measuring equipment accuracy. Safety devices are excluded; thermoplastic valves are covered by ISO 9393‑1/2.

Key topics and technical requirements

• Scope and purpose: Production testing of metallic industrial valves; tests may also be used as type or acceptance tests. When a product/performance standard differs, that standard takes precedence.
• Mandatory tests:
  • P10 Shell strength - validates the pressure‑containing capability of the shell.
  • P11 Shell tightness - verifies external shell leak tightness including mechanism seals.
  • P12 Seat tightness - confirms seat leakage performance for isolating and check valves (control valves per EN 1349).
• Test media and conditions:
  • Test fluid: water (may contain inhibitor) or suitable liquid, or gas (air or other) where agreed. Liquid is required for P10 unless gas agreed with purchaser (gas tests require extra safety).
  • Test fluid temperature: 5 °C to 40 °C.
• Test pressure:
  • Generally at least 1.5 × allowable pressure at room temperature (PSRT). For valves rated only at elevated temperatures, the higher allowable pressure value is used.
• Test equipment and measurement:
  • Test rigs must not introduce external loads affecting results.
  • Measuring instruments must measure pressure to an accuracy of ±5% of the required test pressure.
• Test procedures:
  • Examples: for P10 the obturator is partially open, end connections blanked, cavities filled, pressure applied and held for the specified duration; liquid tests inspected visually for leakage; gas tests detected by immersion/bubbles or leak detection fluid.
• Designation: Tests are designated by title and test reference, e.g. Shell strength, Test P10 - EN 12266‑1.

Applications and who uses it

• Target users: valve manufacturers, quality control/inspection teams, test houses, engineering procurement departments, compliance officers, and certification bodies operating in process industries (oil & gas, chemical, power, water).
• Practical uses:
  • Establishing factory production test routines and acceptance criteria.
  • Defining type-test programs for new valve designs.
  • Supporting compliance with the EU Pressure Equipment Directive (PED) via Annex ZA references.
  • Providing common contractual test language between purchasers and manufacturers.

Related standards

• EN 12266‑2 (supplementary tests and requirements)
• ISO 5208 (basis for EN 12266)
• EN 1349 (control valve seat testing)
• EN 736 series (valve terminology)
• ISO 9393‑1/2 (thermoplastic valve testing)
• EU Directive 97/23/EC (PED) - relationship addressed in Annex ZA

Keywords: EN 12266-1:2012, industrial valves, metallic valves, pressure tests, test procedures, acceptance criteria, shell strength P10, shell tightness P11, seat tightness P12, valve testing, production testing.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industriearmaturen - Prüfung von Armaturen aus Metall - Teil 1: Druckprüfungen, Prüfverfahren und Annahmekriterien - Verbindliche AnforderungenRobinetterie industrielle - Essais des appareils de robinetterie métalliques - Partie 1: Essais sous pression, modes opératoires d'essai et critères d'acceptation - Prescriptions obligatoiresIndustrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and acceptance criteria - Mandatory requirements23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 12266-1:2012SIST EN 12266-1:2012en,fr,de01-julij-2012SIST EN 12266-1:2012SLOVENSKI
STANDARDSIST EN 12266-1:20031DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12266-1
April 2012 ICS 23.060.01 Supersedes EN 12266-1:2003English Version
Industrial valves - Testing of metallic valves - Part 1: Pressure tests, test procedures and acceptance criteria - Mandatory requirements
Robinetterie industrielle - Essais des appareils de robinetterie métalliques - Partie 1: Essais sous pression, procédures d'essai et critères d'acceptation - Prescriptions obligatoires
Industriearmaturen - Prüfung von Armaturen aus Metall - Teil 1: Druckprüfungen, Prüfverfahren und Annahmekriterien - Verbindliche Anforderungen This European Standard was approved by CEN on 25 February 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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 (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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12266-1:2012: ESIST EN 12266-1:2012

Test procedures and acceptance criteria . 8A.1General requirements . 8A.2Shell strength, test reference, P10 . 10A.3Shell tightness, test reference, P11 . 12A.4Seat tightness, test reference P12 . 13Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC (PED) . 16Bibliography . 17 SIST EN 12266-1:2012

EN 736-3:2008 and the following apply. 3.1 shell test test at a pressure in excess of the cold working pressure (3.7) rating of a valve for the purpose of validating the soundness and strength of the valve pressure containing and retaining structures Note 1 to entry: These structures include valve-actuating mechanisms that have a direct connection to the valve internals subject to fluid test pressure within the valve proper. 3.2 test pressure internal pressure (gauge), expressed in bar 1) to which the valve under testing is subjected Note 1 to entry: Unless otherwise noted, gauge pressure is used throughout this European Standard. 3.3 test fluid pressurized liquid or gas used to test a valve
1 1 bar = 105 Pa. SIST EN 12266-1:2012

Shell strength a P10 To confirm the pressure containing capability of the shell against internal pressure see
EN 12266-2:2012, A.2 a The shell strength and shell tightness tests may be carried out at the same time. b See Table A.3 for the type of valve. c To check the pressure containing capability of the obturator, if valve is used as the single means of insulation between the content of an item of pressure equipment and the downstream equipment not designed to withstand the upstream pressure.
5 Designation Tests in accordance with this European Standard shall be designated by the following elements:  title of test and test reference;  EN 12266-1. EXAMPLE Shell strength, Test P10 — EN 12266-1 SIST EN 12266-1:2012

Test procedures and acceptance criteria A.1 General requirements A.1.1 Purpose These general requirements shall be applied to all the test procedures detailed in this annex. Safety aspects of valve testing are not covered in this European Standard. NOTE Users of this European Standard should analyse the hazard resulting from the pressure and take proper safety precautions. A.1.2 Test equipment The test equipment shall be of such a design that it does not subject the valve to externally applied loads which may affect the results of the test. NOTE The test equipment can apply external loads sufficient to react to the forces resulting from the test pressure. When using test equipment and procedures different to that detailed in this European Standard, the manufacturer shall be able to demonstrate the equivalence of such test procedures and acceptance criteria with the requirements of this European Standard. A.1.3 Measuring equipment The measuring equipment shall be capable of measuring fluid pressure with an accuracy of ± 5 % of the required test pressure. A.1.4 Painted, coated or lined valves Before the shell strength test, reference P10, and the shell tightness test, reference P11, valves shall not be painted externally or otherwise coated with materials capable of sealing against leakage from external surfaces of the shell. Valves with liners, internal linings or coatings forming a design feature of the valve may be tested with the liner, after lining or coating. Attention shall be given that the liners, internal linings or coatings are not damaged by the test procedure. NOTE If tests in the presence of a representative of the purchaser are specified, painted or coated valves from stock may be retested without removal of painting or coating. A.1.5 Test fluid The test fluid to be used shall be:  either a liquid (water which may contain a corrosion inhibitor, or any other suitable liquid having a viscosity not greater than water);  a gas (air or other suitable gas). SIST EN 12266-1:2012
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