SIST EN 13648-1:2002
(Main)Cryogenic vessels - Safety devices for protection against excessive pressure - Part 1: Safety valves for cryogenic service
Cryogenic vessels - Safety devices for protection against excessive pressure - Part 1: Safety valves for cryogenic service
This European Standard specifies the requirements for the design, manufacture and testing of safety valves for cryogenic service, i.e. for operation with cryogenic fluids below - 10 °C in addition to operation at ambient temperature. It is a requirement of this standard that the valves comply with prEN ISO 4126-1:2001. In the event of different requirements, this standard takes precedence over that standard.
This standard is restricted to valves not exceeding a size of DN 100 designed to relieve single phase vapours or gases. A valve can be specified, constructed and tested such that it is suitable for use with more than one gas or with mixtures of gases.
NOTE This standard does not provide methods for determining the capacity of relief valve(s) for a particular cryogenic vessel. Such methods are provided in prEN 13648-3.
Kryo-Behälter - Sicherheitseinrichtungen gegen Drucküberschreitung - Teil 1: Sicherheitsventile für den Kryo-Betrieb
Diese Europäische Norm legt Anforderungen für die Konstruktion, Herstellung und die Prüfung von Sicherheitsventilen für den Kryo-Betrieb fest, z. B. für den Betrieb mit tiefkalten Fluiden unter -10 °C, in Ergänzung zu dem Betrieb bei Umgebungstemperaturen. Diese Norm fordert, dass die Ventile prEN ISO 4126-1:2001 entsprechen. Im Streitfall gelten die Anforderungen dieser Norm vorrangig vor denen nach prEN ISO 4126-1.
Diese Norm beschränkt sich auf Ventile, die eine Nennweite von DN 100 nicht überschreiten und für Einzelgase und Dämpfe konstruiert sind und zur Anwendung bei den verschiedenen Gasen und Gasgemischen geeignet sein dürfen.
ANMERKUNG Diese Norm sieht keine Verfahren zur Bestimmung des Ausflusses von Sicherheitseinrichtungen an bestimmten Kryo-Behälter vor; diese Verfahren sind in prEN 13648-3 vorgesehen.
Récipients cryogéniques - Dispositifs de protection contre les supressions - Partie 1: Soupapes de sureté pour service cryogénique
La présente norme spécifie les exigences relatives a la conception, a la fabrication et aux essais des soupapes de sureté pour usage cryogénique, c'est-a-dire destinées a fonctionner avec des fluides cryogéniques a une température inférieure a -10 °C ainsi qu'a température ambiante. La présente norme exige que les soupapes soient conformes au prEN ISO 4126-1. En cas d'exigences contradictoires, les exigences de la présente norme l'emportent sur celles de la norme susmentionnée.
Kriogene posode - Varnostna oprema proti prekoračitvi tlaka - 1. del: Varnostni ventili za kriogeno področje
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kryo-Behälter - Sicherheitseinrichtungen gegen Drucküberschreitung - Teil 1: Sicherheitsventile für den Kryo-BetriebRécipients cryogéniques - Dispositifs de protection contre les supressions - Partie 1: Soupapes de sureté pour service cryogéniqueCryogenic vessels - Safety devices for protection against excessive pressure - Part 1: Safety valves for cryogenic service23.020.40Proti mrazu odporne posode (kriogenske posode)Cryogenic vessels13.240Varstvo pred previsokim tlakomProtection against excessive pressureICS:Ta slovenski standard je istoveten z:EN 13648-1:2002SIST EN 13648-1:2002en01-november-2002SIST EN 13648-1:2002SLOVENSKI
STANDARD
SIST EN 13648-1:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13648-1May 2002ICS 23.060.40English versionCryogenic vessels - Safety devices for protection againstexcessive pressure - Part 1: Safety valves for cryogenic serviceRécipients cryogéniques - Dispositifs de protection contreles supressions - Partie 1: Soupapes de sûreté pourservice cryogéniqueKryo-Behälter - Sicherheitseinrichtungen gegenDrucküberschreitung - Teil 1: Sicherheitsventile für denKryo-BetriebThis European Standard was approved by CEN on 5 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13648-1:2002 ESIST EN 13648-1:2002
EN 13648-1:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions and symbols.44Requirements.54.1General.54.2Design.54.2.1Design temperature.54.2.2Drainage.54.2.3Stem guiding.54.2.4Inserts.54.2.5Sublimating cryogens.54.3Materials.64.3.1General.64.3.2Metallic materials.64.3.3Corrosion resistance.64.3.4Oxygen compatibility.64.3.5Acetylene compatibility.64.3.6Non-metallic materials.65Testing.65.1Production testing.65.2Sample valve tests.65.2.1Operating and flow characteristics tests.65.2.2Test of the repeatability of leak tightness at re-seat.75.2.3Cryogenic tests.76Determination of the certified derated coefficient of discharge (Kdr).87Cleanliness.88Marking.99Sealing.9Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.10SIST EN 13648-1:2002
EN 13648-1:2002 (E)3ForewordThis document (EN 13648-1:2002) has been prepared by Technical Committee CEN/TC 268 "Cryogenic vessels",the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latestby November 2002.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree 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.This document also supports the objectives of the framework Directives on Transport of Dangerous Goods. Thisstandard has been submitted for reference into the RID and/or the technical annexes of the ADR.This European Standard is composed of the following Parts :EN 13648-1, Cryogenic vessels – Safety devices for protection against excessive pressure – Part 1 : Safety valvesfor cryogenic service ;EN 13648-2, Cryogenic vessels – Safety devices for protection against excessive pressure – Part 2 : Bursting discssafety devices for cryogenic service ;prEN 13648-3, Cryogenic vessels – Safety devices for protection against excessive pressure – Part 3 :Determination of required discharge - Capacity and sizing.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.SIST EN 13648-1:2002
EN 13648-1:2002 (E)41 ScopeThis European Standard specifies the requirements for the design, manufacture and testing of safety valves forcryogenic service, i.e. for operation with cryogenic fluids below – 10 °C in addition to operation at ambienttemperature. It is a requirement of this standard that the valves comply with prEN ISO 4126-1:2001. In the event ofdifferent requirements, this standard takes precedence over that standard.This standard is restricted to valves not exceeding a size of DN 100 designed to relieve single phase vapours orgases. A valve can be specified, constructed and tested such that it is suitable for use with more than one gas orwith mixtures of gases.NOTEThis standard does not provide methods for determining the capacity of relief valve(s) for a particular cryogenicvessel. Such methods are provided in prEN 13648-3.2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this Europeanstandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 1251-1:2000, Cryogenic vessels - Transportable vacuum insulated vessels of not more than 1000 litres volume- Part 1: Fundamental requirements.EN 1252-1:1998, Cryogenic vessels - Materials - Part 1: Toughness requirements for temperatures below -80°C.EN 1797, Cryogenic vessels - Gas/material compatibility.EN 12300:1998, Cryogenic vessels - Cleanliness for cryogenic service.EN ISO 6708:1995, Pipework components - Definition and selection of DN (nominal size) (ISO 6708:1995).EN 1252-2, Cryogenic vessels - Materials - Part 2: Toughness requirements for temperatures between -80°C and-20°C.EN 13458-1, Cryogenic vessels – Static vacuum insulated vessels – Part 1 : Fundamental requirements.EN 13530-1, Cryogenic vessels – Large transportable vacuum insulated vessels – Part 1 : Fundamentalrequirements.prEN 13648-3, Cryogenic Vessels – Safety devices for protection against excessive pressure – Part 3 :Determination of required discharge - Capacity and sizing.prEN ISO 4126-1:2001, Safety devices for protection against excessive pressure – Part 1 : Safety valves.3 Terms and definitions and symbolsFor the purposes of this European Standard, the following terms and definitions apply.3.1DN (nominal size)alphanumeric designation of size for components of a pipework system, which is used for reference purposes. Itcomprises the letters DN followed by a dimensionless whole number which is indirectly related to the physical size,in millimetres, of the bore or outside diameter of the end connections[EN ISO 6708:1995]SIST EN 13648-1:2002
EN 13648-1:2002 (E)53.2pressurepressure for which the value is equal to the algebraic difference between the absolute pressure and theatmospheric pressure3.3specified minimum temperaturelowest temperature for which the safety valve is specified3.4valve category Arelief valve which might be expected to relieve during normal operation of the cryogenic vessel3.5valve category Brelief valve which would not be expected to relieve during normal operation due to the provision of an alternativerelieving or control device, e.g. a pressure regulating vent valve designed for frequent operation3.6cryogenic fluidfluid defined as cryogenic fluid in EN 1251-1:2000 or prEN 13458-1 or prEN 13530-1NOTEThis includes totally evaporated li
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