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EN 16668:2025 Standard

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  Keywords:

#equipment #applicable #document #legislation #european

  Directive

Pressure equipment Directive (2014/68/EU)

  Last Official Journal reference

Monday 12th of January 2026

  Description:

Industrial valves - Requirements and testing for metallic valves as pressure accessories

  Purpose

This document is applicable to metallic valves as pressure accessories for industrial applications with a maximum allowable pressure PS greater than 0,5 bar in accordance with the European legislation for pressure equipment and specifies requirements applicable to design, manufacture, testing, materials and documentation. All essential safety requirements of the European legislation for pressure equipment applicable to valves have been taken into consideration and are addressed in this document. This document does not apply to: -  safety valve and bursting disc (safety accessories), -  sight glass with its frames (component of a pressure equipment), and -  measurement chambers. For other exclusions, refer to the European legislation for pressure equipment [60].

  Publication

Monday 12th of January 2026

  Related Standards

EN 14197-3:2004/A1:2005

Pressure equipment Directive (2014/68/EU)

Cryogenic vessels - Static non-vacuum insulated vessels - Part 3: Operational requirements

EN 12420:2014

Pressure equipment Directive (2014/68/EU)

Copper and copper alloys - Forgings

EN 10222-1:2017

Pressure equipment Directive (2014/68/EU)

Steel forgings for pressure purposes - Part 1: General requirements for open die forgings

EN 10222-3:2017

Pressure equipment Directive (2014/68/EU)

Steel forgings for pressure purposes - Part 3: Nickel steels with specified low temperature properties

EN 10222-5:2017

Pressure equipment Directive (2014/68/EU)

Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels

EN 10269:2013

Pressure equipment Directive (2014/68/EU)

Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

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